日本学術振興会   特別研究員

2000年4月 - 2003年3月

A 0.8–1.4-GHz Synthesizable DPLL Using a Background Gain Mismatch Calibrated Feedforward Phase Noise Cancellation 査読 国際誌

Waleed Madany, Yuncheng Zhang, Ashbir Aviat Fadila, Hongye Huang, Junjun Qiu, Jill Mayeda, Atsushi Shirane, Kenichi Okada

IEEE Access   13   40210 - 40225   2025年3月

A 6.5-to-8-GHz Cascaded Dual-Fractional-N Digital PLL Achieving −52.79-dBc Fractional Spur With 50-MHz Reference 査読 国際誌

Dingxin Xu, Yuncheng Zhang, Hongye Huang, Zheng Sun, Bangan Liu, Ashbir Aviat Fadila, Junjun Qiu, Zezheng Liu, Wenqian Wang, Yuang Xiong, Waleed Madany, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   60 ( 3 )   1043 - 1055   2025年3月

A 122 GHz Wirelessly Powered Active Reflector for D-Band Communications 査読 国際誌

Michihiro Ide, Keito Yuasa, Sena Kato, Shu Date, Takashi Tomura, Kenichi Okada, Atsushi Shirane

IEEE Solid-State Circuits Letters   8   97 - 100   2025年3月

Millimeter-wave GaAs Rectifier with Differential Signal 4:1 Power Combiner for Simultaneous Wireless Information and Power Transmission 査読 国際誌

Masayuki Kikuchi, Michihiro Ide, Jill Mayeda, Sena Kato, Keito Yuasa, Kenichi Okada, Atsushi Shirane

2025 IEEE 16th Latin America Symposium on Circuits and Systems (LASCAS)   1 - 5   2025年2月

11.1 A 256-Element Ka-Band CMOS Phased-Array Receiver Using Switch-Type Quadrature-Hybrid-First Architecture for Small Satellite Constellations 査読 国際誌

Sena Kato, Jill Mayeda, Keito Yuasa, Michihiro Ide, Takeshi Ota, Shu Date, Yudai Yamazaki, Xiaolin Wang, Xi Fu, Dongwon You, Makoto Higaki, Jumpei Sudo, Hiroshi Takizawa, Masashi Shirakura, Takashi Tomura, Hiroyuki Sakai, Kazuaki Kunihiro, Kenichi Okada, Atsushi Shirane

2025 IEEE International Solid-State Circuits Conference (ISSCC)   1 - 3   2025年2月

5.6 A Power-Efficient CORDIC-Less Digital Polar Transmitter Using 1b DSM-Based PA Supporting 256-QAM 査読 国際誌

Yuncheng Zhang, Zezheng Liu, Duo Li, Minzhe Tang, Yi Zhang, Hongye Huang, Dingxin Xu, Waleed Madany, Ashbir Aviat Fadila, Wenqian Wang, Yuang Xiong, Daxu Zhang, Garry Pranata Kusuma, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

2025 IEEE International Solid-State Circuits Conference (ISSCC)   100 - 103   2025年2月

A 4-Stream 8-Element Time-Division MIMO Phased-Array Receiver for 5G NR and Beyond Achieving 9.6Gbps Data Rate 査読 国際誌

Yi Zhang, Minzhe Tang, Zheng Li, Dongfan Xu, Kazuaki Kunihiro, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

Proceedings of the 30th Asia and South Pacific Design Automation Conference   342 - 343   2025年1月

A Tri-Mode Harmonic-Selection Mixer with Multiphase LO Supporting 24.25-71GHz for Multi-Band 5G NR 査読 国際誌

Dongfan Xu, Minzhe Tang, Yi Zhang, Zheng Li, Jian Pang, Atsushi Shirane, Kenichi Okada

Proceedings of the 30th Asia and South Pacific Design Automation Conference   352 - 353   2025年1月

A D-Band CMOS Transceiver Chipset Supporting 640Gb/s Date Rate with 4?4 Line-of-Sight MIMO 査読 国際誌

Chenxin Liu, Zheng Li, Yudai Yamazaki, Hans Herdian, Chun Wang, Anyi Tian, Jun Sakamaki, Han Nie, Xi Fu, Sena Kato, Wenqian Wang, Hongye Huang, Shinsuke Hara, Akifumi Kasamatsu, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

Proceedings of the 30th Asia and South Pacific Design Automation Conference   354 - 355   2025年1月

A Low-Jitter and Spur Dual-Edge Sub-Sampling Phase-Locked Loop With Double-Balanced Sampling Mixer-Adopted Phase Detector

Anshul Verma, Bishnu Prasad Das, Pratap Narayan Singh, Kenichi Okada

IEEE Transactions on Microwave Theory and Techniques   2025年

Experimental Testbed for Frequency-Division Multiplexed Joint Radar–Communication System Validation in D-Band Using a 65-nm CMOS Communication Transceiver

Carrel da Gomez, Chenxin Liu, Hans Herdian, Hiroyuki Sakai, Kazuaki Kunihiro, Kenichi Okada

IEEE Access   2025年

Heterogenous TRXs Exploiting Simultaneous Transmit and Receive in SATCOM Phased Arrays

Jill Mayeda, Xiaolin Wang, Sena Kato, Dongwon You, Xi Fu, Takashi Tomura, Hiroyuki Sakai, Kazuaki Kunihiro, Kenichi Okada, Atsushi Shirane

IEEE Transactions on Microwave Theory and Techniques   2025年

A 640-Gb/s 4 x 4-MIMO D-Band CMOS Transceiver Chipset 査読 国際誌

Chenxin Liu, Zheng Li, Yudai Yamazaki, Hans Herdian, Chun Wang, Anyi Tian, Jun Sakamaki, Han Nie, Xi Fu, Sena Kato, Wenqian Wang, Hongye Huang, Minzhe Tang, Dingxin Xu, Shinsuke Hara, Akifumi Kasamatsu, Takashi Tomura, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

IEEE JOURNAL OF SOLID-STATE CIRCUITS   2024年12月

A synthesizable spread spectrum clock generator based on type-II/III fractional-N DPLL 査読 国際誌

Waleed Madany, Hòngyé Huáng, Bangan Liu, Ashbir Aviat Fadila, Zezheng Liu, Wenqian Wang, Junjun Qiu, Jill Mayeda, Atsushi Shirane, Kenichi Okada

IEICE Electronics Express   21 ( 22 )   20240500 - 20240500   2024年11月

35-60GHz Switchless IF Bi-Directional Amplifier Using 65nm CMOS for 300GHz-Band Transceivers 査読 国際誌

Abanob Shehata, Hans Herdian, Chun Wang, Chenxin Liu, Kazuaki Kunihiro, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

2024 IEEE Asian Solid-State Circuits Conference (A-SSCC)   1 - 3   2024年11月

A Compact D-Band Phase Shifter with 0.1-degree Phase Resolution and 0.8-degree RMS Phase Error in 65 nm CMOS 査読 国際誌

Takaya Uchino, Yudai Yamazaki, Sungwan Park, Chenxin Liu, Anyi Tian, Abanob Shehata, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

2024 IEEE Asian Solid-State Circuits Conference (A-SSCC)   1 - 3   2024年11月

Beam Control Free Transceiver Using CMOS 4x4 Matrix for 5G Relay Communication and Wireless Power Transfer 査読 国際誌

Shu Date, Keito Yuasa, Michihiro Ide, Sena Kato, Kenichi Okada, Atsushi Shirane

2024 IEEE Asia-Pacific Microwave Conference (APMC 2024)   713 - 715   2024年11月

A Fully Synthesizable Fractional-N MDLL With Energy-Efficient Ring-Oscillator-Based DTC of Large Tuning Range 国際誌

Hóngyè Huáng, Bangan Liu, Zezheng Liu, Dingxin Xu, Yuncheng Zhang, Waleed Madany, Junjun Qiu, Zheng Sun, Ashbir Aviat Fadila, Jian Pang, Zheng Li, Dongwon You, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   7   54 - 57   2024年11月

Millimeter-Wave Transceiver Utilizing On-Chip Butler Matrix for Simultaneous 5G Relay Communication and Wireless Power Transfer 査読 国際誌

Keito YUASA, Michihiro IDE, Sena KATO, Kenichi OKADA, Atsushi SHIRANE

IEICE Transactions on Electronics   E107.C ( 10 )   408 - 415   2024年10月

A Proton Irradiated CMOS On-Chip Vivaldi Antenna for 300 GHz Band Slat Array Implementation 査読 国際誌

Hans Herdian, Chun Wang, Takeshi Inoue, Atsushi Shirane, Kenichi Okada

IEEE Open Journal of Antennas and Propagation   5 ( 5 )   1390 - 1402   2024年10月

5G NR Transceiver and 24GHz Wireless Power Receiver Utilizing a Low Insertion Loss Differential Output Butler Matrix for Long-Range Wireless Transmission 査読 国際誌

Keito Yuasa, Michihiro Ide, Sena Kato, Takashi Tomura, Kenichi Okada, Atsushi Shirane

2024 54th European Microwave Conference (EuMC)   892 - 895   2024年9月

A Low-Loss 220GHz-325GHz Marchand Balun in 65nm CMOS Technology 査読 国際誌

Anyi Tian, Chenxin Liu, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

2024 54th European Microwave Conference (EuMC)   1026 - 1029   2024年9月

A 225-264 GHz Wideband Amplifier in 65 nm CMOS with Optimized 10 μm Transistor Layout 査読 国際誌

Olivia Angel Yong, Chun Wang, Kazuaki Kunihiro, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

2024 54th European Microwave Conference (EuMC)   816 - 819   2024年9月

Digital Phase-Locked Loops: Exploring Different Boundaries 招待 査読 国際誌

Yuncheng Zhang, Dingxin Xu, Kenichi Okada

IEEE Open Journal of the Solid-State Circuits Society   4   176 - 192   2024年9月

Radiation-Tolerant Ka-Band Deployable Phased-Array Transceiver for Low-Earth Orbit Small Satellite Constellation 査読 国際誌

Yasuto Narukiyo, Xi Fu, Dongwon You, Takashi Tomura, Hiraku Sakamoto, Kenichi Okada, Atsushi Shirane

Small Satellite Conference,   2024年8月

A D-Band CMOS Transceiver Chipset for 640-Gb/s Data Rate with 4x4-MIMO 招待 査読 国際誌

Chenxin Liu, Kenichi Okada

IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)   2024年8月

Power Supply and RF Signal Routing Architecture Design for Ultralight Deployable Ka-Band Active Phased-Array Transceivers 査読 国際誌

Hiroki Hayashi, Yasuto Narukiyo, Delburg Mitchao, Yuki Takeda, Suk So Yeon, Hikaru Sakamoto, Kenichi Okada, Atsushi Shirane

Small Satellite Conference   2024年8月

Development of Multifunctional Lightweight Membrane Structure for Antennas and Power Generation on Small Satellites 査読 国際誌

Yuto Nakagawa, Masanori Matsushita, Yuki Takao, Ahmed Kiyoshi Sugihara, Osamu Mori, Tetsuya Kusumoto, Haruhito Ohki, Kaho Nakagawa, Shusaku Tsuruya, Yukiho Ohtsuki, Sho Nishimura, Masahiro Fujita, Hiroaki Yoneda, Shun Yasuda, Tomoyo Shibata, Toshiyuki Hori, Hiroaki Ito, Akihito Watanabe, Sota Kume, Atsuki Ochi, Sora Kanamaru, Motoki Moritani, Hiraku Sakamoto, Atsushi Shirane, Kenichi Okada, Ayako Torisaka, Nobukatsu Okuizumi, Yasutaka Satou, Yasuyuki Miyazaki, Atsuhiko Senba

Small Satellite Conference,   2024年8月

Design of Synthesizable Digital Phase Locked Loops 招待 査読 国際誌

Yuncheng Zhang, Kenichi Okada

IPSJ Transactions on System and LSI Design Methodology   17   44 - 54   2024年6月

Dual-Layer Proton Irradiation for Passive Component Enhancement and Noise Coupling Suppression on CMOS Process 査読 国際誌

Hans Herdian, Takeshi Inoue, Atsushi Shirane, Kenichi Okada

IEEE Transactions on Electron Devices   71 ( 8 )   4498 - 4503   2024年6月

A K/Ka-Band Satellite Terminal Beamforming Front-End-Module Utilizing Dual-Band Self-Diplexing Antennas 査読 国際誌

Jill Mayeda, Dongwon You, Xi Fu, Xiaolin Wang, Hans Heridian, Michihiro Ide, Takashi Tomura, Hero Sakai, Kazuaki Kunihiro, Kenichi Okada, Atsushi Shirane

2024 IEEE/MTT-S International Microwave Symposium - IMS 2024   327 - 330   2024年6月

A 28GHz 4-Stream Time-Division MIMO Phased-Array Receiver Utilizing Nyquist-Rate Fast Beam Switching for 5G and Beyond 査読 国際誌

Yi Zhang, Minzhe Tang, Jian Pang, Zheng Li, Dongfan Xu, Dingxin Xu, Yuncheng Zhang, Kazuaki Kunihiro, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

2024 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)   1 - 2   2024年6月

A 640-Gb/s $4\times 4$-MIMO D-Band CMOS Transceiver Chipset 査読 国際誌

Chenxin Liu, Zheng Li, Yudai Yamazaki, Hans Herdian, Chun Wang, Anyi Tian, Jun Sakamaki, Han Nie, Xi Fu, Sena Kato, Wenqian Wang, Hongye Huang, Shinsuke Hara, Akifumi Kasamatsu, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

2024 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)   1 - 2   2024年6月

A 28GHz 5G NR Wirelessly Powered Relay Transceiver Using Rectifier-Type 4th-Order Sub-Harmonic Mixer 査読 国際誌

Sena Kato, Shu Date, Tao Ruoxin, Yasuto Narukiyo, Hiroki Hayashi, Keito Yuasa, Michihiro Ide, Takashi Tomura, Kenichi Okada, Atsushi Shirane

2024 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)   1 - 2   2024年6月

A 256-Element Phased-Array Relay Transceiver for 5G Network Using 24-GHz Wireless Power Transfer With Discrete ICs 査読 国際誌

Michihiro Ide, Keito Yuasa, Sena Kato, Takashi Tomura, Kenichi Okada, Atsushi Shirane

IEEE Microwave and Wireless Technology Letters   34 ( 6 )   793 - 796   2024年6月

A 24–71-GHz Tri-Mode Mixer Using Harmonic Selection for Multi-Band 5G NR 査読 国際誌

Dongfan Xu, Minzhe Tang, Yi Zhang, Zheng Li, Atsushi Shirane, Kenichi Okada

2024 IEEE International Symposium on Circuits and Systems (ISCAS)   1 - 4   2024年5月

A Peak-detector-based Ultra Low Power ECG ASIC for Early Detection of Cardio-Vascular Diseases 査読 国際共著 国際誌

Sidharth Thomas, Jaskirat Singh Virdi, Anshul Verma, Bishnu Prasad Das, Kenichi Okada, Pratap Narayan Singh

2024 IEEE International Symposium on Circuits and Systems (ISCAS)   1 - 5   2024年5月

A VCO With Robust Implicit Common-Mode Resonance Against Nonideal Decoupling Network 査読 国際誌

Dingxin Xu, Zheng Sun, Yuang Xiong, Yuncheng Zhang, Hongye Huang, Zezheng Liu, Ashbir Aviat Fadila, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   7   171 - 174   2024年5月

Conductive and Capacitive Properties of Couplers under Seawater for Electric Wireless Power Transfer 査読 国際誌

Ning Li, Kosuke Iguchi, Xuefeng Liu, Atsushi Shirane, Kenichi Okada, Takeshi Shinkai

2024 IEEE Wireless Power Technology Conference and Expo (WPTCE)   308 - 311   2024年5月

Guest Editorial Introduction to the Special Section on the 2023 RFIC Symposium 招待 国際誌

Kenichi Okada

IEEE Journal of Solid-State Circuits   59 ( 5 )   1300   2024年5月

A D-Band Wideband Single-Ended Neutralized Upconversion Mixer With Controlled LO Feedthrough in 65-nm CMOS 査読 国際誌

Chun Wang, Chenxin Liu, Hans Herdian, Abanob Shehata, Jill Mayeda, Kazuaki Kunihiro, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   7   167 - 170   2024年4月

A Sub-THz Full-Duplex Phased-Array Transceiver with Self-Interference Cancellation and LO Feedthrough Suppression 査読 国際誌

Chun Wang, Ibrahim Abdo, Chenxin Liu, Carrel Da Gomez, Jill Mayeda, Hans Herdian, Wenqian Wang, Xi Fu, Dongwon You, Abanob Shehata, Sunghwan Park, Yun Wang, Jian Pang, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   59 ( 4 )   978 - 992   2024年4月

A Time-Mode-Modulation Digital Quadrature Power Amplifier Based on 1-bit Delta-Sigma Modulator and Hybrid FIR Filter 査読 国際誌

Yuncheng Zhang, Zheng Sun, Bangan Liu, Junjun Qiu, Dingxin Xu, Yi Zhang, Xi Fu, Dongwon You, Hongye Huang, Waleed Madany, Ashbir Aviat Fadila, Zezheng Liu, Wenqian Wang, Yuang Xiong, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   59 ( 4 )   993 - 1005   2024年4月

10.3 A 7GHz Digital PLL with Cascaded Fractional Divider and Pseudo-Differential DTC Achieving -62.1dBc Fractional Spur and 143.7fs Integrated Jitter 査読 国際誌

Dingxin Xu, Zezheng Liu, Yifeng Kuai, Hongye Huang, Yuncheng Zhang, Zheng Sun, Bangan Liu, Wenqian Wang, Yuang Xiong, Junjun Qiu, Waleed Madany, Yi Zhang, Ashbir Aviat Fadila, Atsushi Shirane, Kenichi Okada

2024 IEEE International Solid-State Circuits Conference (ISSCC)   192 - 194   2024年2月

24.3 A 236-to-266GHz 4-Element Amplifier-Last Phased-Array Transmitter in 65nm CMOS 査読 国際誌

Chun Wang, Hans Herdian, Wenbin Zheng, Chenxin Liu, Jill Mayeda, Yuxuan Liu, Olivia Angel Yong, Wenqian Wang, Yuncheng Zhang, Carrel Da Gomez, Abanob Shehata, Sena Kato, Ibrahim Abdo, Teruo Jyo, Hiroshi Hamada, Hiroyuki Takahashi, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

2024 IEEE International Solid-State Circuits Conference (ISSCC)   415 - 417   2024年2月

A Low-Power Radiation-Hardened Ka-Band CMOS Phased-Array Receiver for Small Satellite Constellation 査読 国際誌

Xi Fu, Dongwon You, Yun Wang, Xiaolin Wang, Ashibir Aviat Fadila, Chenxin Liu, Sena Kato, Chun Wang, Zheng Li, Jian Pang, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   59 ( 2 )   349 - 363   2024年2月

A Low-Power 256-Element Ka-Band CMOS Phased-Array Receiver with On-Chip Distributed Radiation Sensors for Small Satellite Constellations

Xi Fu, Dongwon You, Xiaolin Wang, Yun Wang, Carolyn Jill Mayeda, Yuan Gao, Michihiro Ide, Yuncheng Zhang, Jun Sakamaki, Ashibir Aviat Fadila, Zheng Li, Jumpei Sudo, Makoto Higaki, Soichiro Inoue, Takashi Eishima, Takashi Tomura, Jian Pang, Hiroyuki Sakai, Kenichi Okada, Atsushi Shirane

IEEE Journal of Solid-State Circuits   58 ( 12 )   3380 - 3395   2023年12月

A 37–43.5-GHz Phase and Amplitude Detection Circuit With 0.049° and 0.036-dB Accuracy for 5G Phased-Array Calibration Using Transformer-Based Injection-Enhanced ILFD

Yudai Yamazaki, Jun Sakamaki, Jian Pang, Joshua Alvin, Zheng Li, Dongwon You, Jill Mayeda, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   58 ( 10 )   2851 - 2860   2023年10月

A 28GHz High-Accuracy Phase and Amplitude Detection Circuit for Dual-Polarized Phased-Array Calibration.

Yudai Yamazaki, Joshua Alvin, Jian Pang, Atsushi Shirane, Kenichi Okada

IEICE Transactions on Electronics   106 ( 4 )   149 - 156   2023年4月

A Ka-Band Deployable Active Phased Array Transmitter Fabricated on 4-Layer Liquid Crystal Polymer Substrate for Small-Satellite Mount

Dongwon You, Xiaolin Wang, Hans Herdian, Xi Fu, Hojun Lee, Michihiro Ide, Carrel Da Gomez, Zheng Li, Jill Mayeda, Daisuke Awaji, Jian Pang, Hiraku Sakamoto, Kenichi Okada, Atsushi Shirane

IEEE Access   11   69522 - 69535   2023年

A 2.95mW/element Ka-band CMOS Phased-Array Receiver Utilizing On-Chip Distributed Radiation Sensors in Low-Earth-Orbit Small Satellite Constellation

Xi Fu, Dongwon You, Xiaolin Wang, Michihiro Ide, Yuncheng Zhang, Jun Sakamaki, Ashibir Aviat Fadila, Zheng Li, Yun Wang, Jumpei Sudo, Makoto Higaki, Soichiro Inoue, Takashi Eishima, Takashi Tomura, Jian Pang, Hiroyuki Sakai, Kenichi Okada, Atsushi Shirane

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   2023-February   296 - 298   2023年

Beam Control Free 28GHz 5G Relay Transceiver and 24GHz Wireless Power Receiver Using On-Chip Butler Matrix

Keito Yuasa, Michihiro Ide, Sena Kato, Kenichi Okada, Atsushi Shirane

IEEE MTT-S International Microwave Symposium Digest   2023-June   199 - 202   2023年

A Sub-THz Full-Duplex Phased-Array Transceiver with Self-Interference Cancellation and LO Feedthrough Suppression

Chun Wang, Ibrahim Abdo, Chenxin Liu, Carrel Da Gomez, Hans Herdian, Wenqian Wang, Xi Fu, Dongwon You, Abanob Shehata, Sunghwan Park, Yun Wang, Jian Pang, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - Symposium on VLSI Technology   2023-June   2023年

A Dual-Mode Bi-Directional CMOS Mixer Using Push-Push Doubler for 300GHz-Band Transceivers

Chenxin Liu, Ibrahim Abdo, Chun Wang, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada

European Solid-State Circuits Conference   2023-September   69 - 72   2023年

A 24-49-GHz CMOS Area-Efficient Phase-Invariant Mixed-Type Attenuator With Capacitive Compensation for 5G New Radio

Zheng Li, Peng Luo, Jian Pang, Qiaoyu Wang, Atsushi Shirane, Kenichi Okada

European Solid-State Circuits Conference   2023-September   449 - 452   2023年

Millimeter-wave Beamforming IC and Antenna Modules with Bi-directional Transceiver Architecture

Naoki Oshima, Shinichi Hori, Jian Pang, Atsushi Shirane, Kenichi Okada, Kazuaki Kunihiro

NEC Technical Journal   17 ( 1 )   47 - 51   2023年

A Fully Synthesizable DPLL with Background Gain Mismatch Calibrated Feedforward Phase Noise Cancellation Path

Waleed Madany, Yuncheng Zhang, Ashbir Aviat Fadila, Hongye Huang, Junjun Qiu, Atsushi Shirane, Kenichi Okada

European Solid-State Circuits Conference   2023-September   265 - 268   2023年

A 19–34-GHz Bridged-T Phase Shifter With High-Pass Phase Compensation Achieving 3.9° RMS Phase Error for 5G NR

Yijing Liao, Minzhe Tang, Jian Pang, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   6   233 - 236   2023年

A 60-GHz Transformer-Based Power Amplifier Supporting 5G n263-band Applications

Junqing Liu, Zheng Li, Minghao Fan, Yilun Chen, Atsushi Shirane, Kenichi Okada

Proceedings of the 2023 International Conference on IC Design and Technology, ICICDT 2023   48 - 51   2023年

A 6.5-to-8GHz Cascaded Dual-Fractional-N Digital PLL Achieving -63.7dBc Fractional Spurs with 50MHz Reference.

Dingxin Xu, Yuncheng Zhang, Hongye Huang, Zheng Sun, Bangan Liu, Ashbir Aviat Fadila, Junjun Qiu, Zezheng Liu, Wenqian Wang, Yuang Xiong, Waleed Madany, Atsushi Shirane, Kenichi Okada

IEEE Custom Integrated Circuits Conference(CICC)   2023-April   1 - 2   2023年

A 32kHz-Reference 2.4GHz Fractional-N Nonuniform Oversampling PLL with Gain-Boosted PD and Loop-Gain Calibration.

Junjun Qiu, Wenqian Wang, Zheng Sun, Bangan Liu, Yuncheng Zhang, Dingxin Xu, Hongye Huang, Ashbir Aviat Fadila, Zezheng Liu, Waleed Madany, Yuang Xiong, Atsushi Shirane, Kenichi Okada

IEEE International Solid- State Circuits Conference(ISSCC)   2023-February   80 - 81   2023年

A Time-Mode-Modulation Digital Quadrature Power Amplifier Based on 1-bit Delta-Sigma Modulator and Transformer Combined FIR FIlter

Yuncheng Zhang, Zheng Sun, Bangan Liu, Junjun Qiu, Dingxin Xu, Yi Zhang, Xi Fu, Dongwon You, Hongye Huang, Waleed Madany, Ashbir Aviat Fadila, Zezheng Liu, Wenqian Wang, Yuang Xiong, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - Symposium on VLSI Technology   2023-June   2023年

A Compact 28 GHz Bi-Directional Power-Combined Antenna Interface in WLCSP for 5G and B5G Transceivers

Jian Pang, Zheng Li, Yi Zhang, Minzhe Tang, Minghao Fan, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   6   149 - 152   2023年

A 39-GHz CMOS Bidirectional Doherty Phased- Array Beamformer Using Shared-LUT DPD With Inter-Element Mismatch Compensation Technique for 5G Base Station.

Zheng Li, Jian Pang, Yi Zhang 0092, Yudai Yamazaki, Qiaoyu Wang, Peng Luo, Weichu Chen, Yijing Liao, Minzhe Tang, Yun Wang 0008, Xi Fu, Dongwon You, Naoki Oshima, Shinichi Hori, Jeehoon Park, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   58 ( 4 )   901 - 914   2023年

19.4 A Small-Satellite-Mounted 256-Element Ka-Band CMOS Phased-Array Transmitter Achieving 63.8dBm EIRP Under 26.6W Power Consumption Using Single/Dual Circular Polarization Active Coupler

Dongwon You, Xi Fu, Xiaolin Wang, Yuan Gao, Wenqian Wang, Jun Sakamaki, Hans Herdian, Sena Kato, Michihiro Ide, Yuncheng Zhang, Ashbir Aviat Fadila, Zheng Li, Chun Wang, Yun Wang, Jumpei Sudo, Makoto Higaki, Nahoka Kawaguchi, Masaya Nitta, Soichiro Inoue, Takashi Eishima, Takashi Tomura, Jian Pang, Hiroyuki Sakai, Kenichi Okada, Atsushi Shirane

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   2023-February   298 - 300   2023年

A 41-GHz 19.4-dBm Psat CMOS Doherty power amplifier for 5G NR applications.

Zheng Li, Zixin Chen, Qiaoyu Wang, Junqing Liu, Jian Pang, Atsushi Shirane, Kenichi Okada

IEICE Electronic Express   20 ( 5 )   20220558 - 20220558   2023年

A 3.4mW/element Radiation-Hardened Ka-Band CMOS Phased-Array Receiver Utilizing Magnetic-Tuning Phase Shifter for Small Satellite Constellation.

Xi Fu, Yun Wang 0008, Dongwon You, Xiaolin Wang, Ashbir Aviat Fadila, Yi Zhang 0092, Sena Kato, Chun Wang, Zheng Li, Jian Pang, Atsushi Shirane, Kenichi Okada

ISSCC   2022-February   90 - 92   2022年

A 39-GHz CMOS Bi-Directional Doherty Phased-Array Beamformer Using Shared-LUT DPD with Inter-Element Mismatch Compensation Technique for 5G Base-Station

Zheng Li, Jian Pang, Yi Zhang, Yudai Yamazaki, Qiaoyu Wang, Peng Luo, Weichu Chen, Yijing Liao, Minzhe Tang, Zhengyan Guo, Yun Wang, Xi Fu, Dongwon You, Naoki Oshima, Shinichi Hori, Kazuaki Kunihiro, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - Symposium on VLSI Technology   2022-June   98 - 99   2022年

A 28-GHz Fully-Passive Retro-Reflective Phased-Array Backscattering Transceiver for 5G Network with 24-GHz Beam-Steered Wireless Power Transfer

Michihiro Ide, Yuasa Keito, Kato Sena, Dongwon You, Ashbir Aviat Fadila, Jian Pang, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - Symposium on VLSI Technology   2022-June   96 - 97   2022年

A Flexible Implementation of Ka-Band Active Phased Array for Satellite Communication

Xiaolin Wang, Dongwon You, Xi Fu, Hojun Lee, Zheng Li, Daisuke Awaji, Jian Pang, Atsushi Shirane, Hiraku Sakamoto, Kenichi Okada

IEEE MTT-S International Microwave Symposium Digest   2022-June   753 - 756   2022年

A Ka-Band Dual Circularly Polarized CMOS Transmitter with Adaptive Scan Impedance Tuner and Active XPD Calibration Technique for Satellite Terminal

Dongwon You, Yun Wang, Xi Fu, Hans Herdian, Xiaolin Wang, Ashbir Fadila, Hojun Lee, Michihiro Ide, Sena Kato, Zheng Li, Jian Pang, Atsushi Shirane, Kenichi Okada

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium   2022-June   15 - 18   2022年

A 28GHz Area-Efficient CMOS Vector-Summing Phase Shifter Utilizing Phase-Inverting Type-I Poly-Phase Filter for 5G New Radio

Minzhe Tang, Yi Zhang, Jian Pang, Atsushi Shirane, Kenichi Okada

ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings   333 - 336   2022年

An 8.5-dB Insertion Loss and 0.8° RMS Phase Error Ka-Band CMOS Hybrid Phase Shifter Featuring Nonuniform Matching for Satellite Communication

FU Xi, WANG Yun, WANG Xiaolin, GU Xiaofan, LUO Xueting, LI Zheng, PANG Jian, SHIRANE Atsushi, OKADA Kenichi

IEICE Transactions on Electronics   advpub ( 10 )   552 - 560   2022年

A Low-power Digital Baseband Circuit for GMSK Demodulation in Sub-GHz Application

Qiu Junjun, Liu Bangan, Zhang Yuncheng, Shirane Atsushi, Okada Kenichi

IEICE Electronics Express   advpub ( 12 )   20220201 - 20220201   2022年

A 0.37mm² Fully-Integrated Wide Dynamic Range Sub-GHz Receiver Front-end without Off-chip Matching Components

ZHANG Yuncheng, LIU Bangan, SOMEYA Teruki, WU Rui, QIU Junjun, SHIRANE Atsushi, OKADA Kenichi

IEICE Transactions on Electronics   advpub ( 7 )   334 - 342   2022年

A 1-Bit-DSM-Based Digital Polar Power Amplifier Supporting 1024-QAM

Zhang, Y., Liu, B., Qiu, J., Shirane, A., Okada, K.

IEEE Solid-State Circuits Letters   5   130 - 133   2022年

A Bi-Directional 300-GHz-Band Phased-Array Transceiver in 65-nm CMOS With Outphasing Transmitting Mode and LO Emission Cancellation

Abdo, I., da Gomez, C., Wang, C., Hatano, K., Li, Q., Liu, C., Yanagisawa, K., Fadila, A.A., Fujimura, T., Miura, T., Tokgoz, K.K., Pang, J., Hamada, H., Nosaka, H., Shirane, A., Okada, K.

IEEE Journal of Solid-State Circuits   57 ( 8 )   2292 - 2308   2022年

300GHz-Band CMOS Bi-Directional Transceiver for 6G Phased-Array Applications

Ibrahim Abdo, Atsushi Shirane, Kenichi Okada

GSMM 2022 - 14th Global Symposium on Millimeter-Waves and Terahertz   215 - 216   2022年

A CMOS 24-30 GHz Low-Phase-Variation Variable Gain Amplifier Design for 5G New Radio

Junjun Qiu, Jian Pang, Bangan Liu, Xueting Luo, Yun Wang, Yuncheng Zhang, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   5   146 - 149   2022年

F-band Frequency Multipliers with Fundamental and Harmonic Rejection for Improved Conversion Gain and Output Power.

Ibrahim Abdo, Korkut Kaan Tokgoz, Atsushi Shirane, Kenichi Okada

IEICE Trans. Electron.   105-C ( 3 )   118 - 125   2022年

A Ka-Band SATCOM Transceiver in 65-nm CMOS With High-Linearity TX and Dual-Channel Wide-Dynamic-Range RX for Terrestrial Terminal.

Yun Wang 0008, Dongwon You, Xi Fu, Takeshi Nakamura, Ashbir Aviat Fadila, Teruki Someya, Atsuhiro Kawaguchi, Junjun Qiu, Jian Pang, Kiyoshi Yanagisawa, Bangan Liu, Yuncheng Zhang, Haosheng Zhang, Rui Wu 0001, Shunichiro Masaki, Daisuke Yamazaki, Atsushi Shirane, Kenichi Okada

IEEE J. Solid State Circuits   57 ( 2 )   356 - 370   2022年

A Compact and High-Resolution CMOS Switch-Type Phase Shifter Achieving 0.4-dB RMS Gain Error for 5G n260 Band.

Jian Pang, Xueting Luo, Zheng Li, Atsushi Shirane, Kenichi Okada

IEICE Trans. Electron.   105-C ( 3 )   102 - 109   2022年

A 41-GHz 19.4-dBm P<inf>SAT</inf>CMOS Doherty Power Amplifier for 5G NR Applications

Zheng Li, Zixin Chen, Qiaoyu Wang, Jian Pang, Atsushi Shirane, Kenichi Okada

Proceedings of 2022 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2022   32 - 33   2022年

A 1.8-67GHz Divide-by-4 ILFD Using Area-Efficient Transformer-Based Injection-Enhancing Technique

Yudai Yamazaki, Jian Pang, Atsushi Shirane, Kenichi Okada

ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings   393 - 396   2022年

A 37-39GHz Phase and Amplitude Detection Circuit with 0.060 degree and 0.043dB RMS Errors for the Calibration of 5GNR Phased-Array Beamforming

Yudai Yamazaki, Jun Sakamaki, Jian Pang, Joshua Alvin, Zheng Li, Atsushi Shirane, Kenichi Okada

2022 IEEE Asian Solid-State Circuits Conference, A-SSCC 2022 - Proceedings   2022年

Millimeter-Wave CMOS Phased-Array Transceivers for 5G and beyond

Kenichi Okada, Jian Pang, Atsushi Shirane, Zheng Li, Yi Zhang, Naoki Oshima, Shinichi Hori, Kazuaki Kunihiro

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC   2022-September   219 - 221   2022年

Maximizing Energy Efficiency in Sub-THz Radio Communication and Prospective toward 6G

Kenichi Okada

2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2022   2022年

A 220-294 GHz Power Amplifier with 10-dBm P<inf>sat</inf>and 2.2% PAE in 250-nm InP DHBT

Teruo Jyo, Hiroshi Hamada, Munehiko Nagatani, Hitoshi Wakita, Ibrahim Abdo, Miwa Mutoh, Yuta Shiratori, Kenichi Okada, Atsushi Shirane, Hiroyuki Takahashi

2022 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2022   152 - 155   2022年

A 300-GHz Band Chip-to-Waveguide Transition on Proton-Irradiated Standard 65nm CMOS Si Substrate for Flip-Chip Packaging Implementation

Hans Herdian, Takeshi Inoue, Masatsugu Sogabe, Atsushi Shirane, Kenichi Okada

IEEE MTT-S International Microwave Symposium Digest   2022-June   673 - 675   2022年

A Power-Efficient CMOS Multi-Band Phased-Array Receiver Covering 24-71-GHz Utilizing Harmonic-Selection Technique With 36-dB Inter-Band Blocker Tolerance for 5G NR.

Yi Zhang 0092, Jian Pang, Zheng Li, Minzhe Tang, Yijing Liao, Ashbir Aviat Fadila, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   57 ( 12 )   3617 - 3630   2022年

A Low-Profile, Scalable 28-GHz Phased Array Antenna in Fan-Out Wafer-Level Package for 5G Communication

Naoki Oshima, Shinichi Hori, Jian Pang, Atsushi Shirane, Kenichi Okada, Kazuaki Kunihiro

Asia-Pacific Microwave Conference Proceedings, APMC   2022-November   359 - 361   2022年

A CMOS Full-Wave Switching Rectifier with Frequency Up-Down Conversion for 5G NR Wirelessly-Powered Relay Transceivers

Sena Kato, Keito Yuasa, Michihiro Ide, Atsushi Shirane, Kenichi Okada

ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings   345 - 348   2022年

A Power-Efficient 24-to-71 GHz CMOS Phased-Array Receiver Utilizing Harmonic-Selection Technique Supporting 36dB Inter-Band Blocker Rejection for 5G NR.

Jian Pang, Yi Zhang 0092, Zheng Li, Minzhe Tang, Yijing Liao, Ashbir Aviat Fadila, Atsushi Shirane, Kenichi Okada

ISSCC   2022-February   434 - 436   2022年

Performance Evaluation of Classification and Verification with Quadrant IQ Transition Image.

Hiro Tamura, Kiyoshi Yanagisawa, Atsushi Shirane, Kenichi Okada

IEICE Trans. Commun.   105-B ( 5 )   580 - 587   2022年

RF and Optical Hybrid LEO Communication System for Non-Terrestrial Network

Takashi Eishima, Soichiro Inoue, Akihiro Yonemoto, Jumpei Sudo, Takayuki Hosonuma, Shinichi Nakasuka, Atsushi Shirane, Takashi Tomura, Kenichi Okada, Kosuke Kiyohara

2022 IEEE International Conference on Space Optical Systems and Applications, ICSOS 2022   93 - 99   2022年

CMOS THz Phased-Array Transceivers for beyond 5G

Kenichi Okada

2021 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2021   2021年8月

A Low-Jitter Injection-Locked Clock Multiplier Using 97-uW Transformer-Based VCO with 18-kHz Flicker Noise Corner

Zheng Sun, Hanli Liu, Dingxin Xu, Hongye Huang, Bangan Liu, Zheng Li, Jian Pang, Teruki Someya, Atsushi Shirane, Kenichi Okada

IEICE Transactions on Electronics   E104.C ( 7 )   289 - 299   2021年7月

A CMOS SPDT RF Switch with 68 dB Isolation and 1.0 dB Loss Feathering Switched Resonance Network for MIMO Applications

Xi Fu, Yun Wang, Zheng Li, Atsushi Shirane, Kenichi Okada

IEICE Transactions on Electronics   E104.C ( 7 )   280 - 288   2021年7月

A Ka-Band 16-Element Deployable Active Phased Array Transmitter for Satellite Communication

Dongwon You, Yuta Takahashi, Shinji Takeda, Motoki Moritani, Haruki Hagiwara, Shuhei Koike, Hojun Lee, Yun Wang, Zheng Li, Jian Pang, Atsushi Shirane, Hiraku Sakamoto, Kenichi Okada

IEEE MTT-S International Microwave Symposium Digest   2021-June   799 - 802   2021年6月

22.2 A 300GHz-Band Phased-Array Transceiver Using Bi-Directional Outphasing and Hartley Architecture in 65nm CMOS

Ibrahim Abdo, Carrel Da Gomez, Chun Wang, Kota Hatano, Qi Li, Chenxin Liu, Kiyoshi Yanagisawa, Ashbir Aviat Fadila, Jian Pang, Hiroshi Hamada, Hideyuki Nosaka, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   64   316 - 318   2021年2月

32.7 A 32kHz-Reference 2.4GHz Fractional-N Oversampling PLL with 200kHz Loop Bandwidth

Junjun Qiu, Zheng Sun, Bangan Liu, Wenqian Wang, Dingxin Xu, Hans Herdian, Hongye Huang, Yuncheng Zhang, Yun Wang, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   64   454 - 456   2021年2月

A Fully Synthesizable Fractional-N MDLL with Zero-Order Interpolation-Based DTC Nonlinearity Calibration and Two-Step Hybrid Phase Offset Calibration

Bangan Liu, Yuncheng Zhang, Junjun Qiu, Huy Cu Ngo, Wei Deng, Kengo Nakata, Toru Yoshioka, Jun Emmei, Jian Pang, Aravind Tharayil Narayanan, Haosheng Zhang, Teruki Someya, Atsushi Shirane, Kenichi Okada

IEEE Transactions on Circuits and Systems I: Regular Papers   68 ( 2 )   603 - 616   2021年2月

28GHz Phase Shifter with Temperature Compensation for 5G NR Phased-array Transceiver

Yi Zhang, Jian Pang, Kiyoshi Yanagizawa, Atsushi Shirane, Kenichi Okada

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   847 - 852   2021年1月

A DSM-based Polar Transmitter with 23.8% System Efficiency

Yuncheng Zhang, Bangan Liu, Xiaofan Gu, Chun Wang, Atsushi Shirane, Kenichi Okada

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   291 - 296   2021年1月

A 0.41W 34Gb/s 300GHz CMOS Wireless Transceiver

Ibrahim Abdo, Takuya Fujimura, Tsuyoshi Miura, Korkut K. Tokgoz, Atsushi Shirane, Kenichi Okada

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   43 - 48   2021年1月

A High Accuracy Phase and Amplitude Detection Circuit for Calibration of 28GHz Phased Array Beamformer System

Joshua Alvin, Jian Pang, Atsushi Shirane, Kenichi Okada

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   93 - 94   2021年1月

A 0.85mm²BLE Transceiver Using an On-Chip Harmonic-Suppressed RFIO Circuitry with T/R Switch

Zheng Sun, Hanli Liu, Hongye Huang, Dexian Tang, DIngxin Xu, Tohru Kaneko, Zheng Li, Jian Pang, Rui Wu, Wei Deng, Atsushi Shirane, Kenichi Okada

IEEE Transactions on Circuits and Systems I: Regular Papers   68 ( 1 )   196 - 209   2021年1月

A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems

Jian Pang, Zheng Li, Xueting Luo, Joshua Alvin, Rattanan Saengchan, Ashbir Aviat Fadila, Kiyoshi Yanagisawa, Yi Zhang, Zixin Chen, Zhongliang Huang, Xiaofan Gu, Rui Wu, Yun Wang, Dongwon You, Bangan Liu, Zheng Sun, Yuncheng Zhang, Hongye Huang, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   56 ( 4 )   1310 - 1326   2021年

64QAM wireless link with 300GHz InP-CMOS hybrid transceiver

Ibrahim Abdo, Hiroshi Hamada, Hideyuki Nosaka, Atsushi Shirane, Kenichi Okada

IEICE Electronics Express   18 ( 17 )   20210314 - 20210314   2021年

A 32-kHz-Reference 2.4-GHz Fractional-N Oversampling PLL With 200-kHz Loop Bandwidth.

Junjun Qiu, Zheng Sun, Bangan Liu, Wenqian Wang, Dingxin Xu, Hans Herdian, Hongye Huang, Yuncheng Zhang, Yun Wang 0008, Jian Pang, Hanli Liu, Masaya Miyahara, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   56 ( 12 )   3741 - 3755   2021年

A Fast-Beam-Switching 28-GHz Phased-Array Transceiver Supporting Cross-Polarization Leakage Self-Cancellation.

Jian Pang, Zheng Li, Xueting Luo, Joshua Alvin, Kiyoshi Yanagisawa, Yi Zhang 0092, Zixin Chen, Zhongliang Huang, Xiaofan Gu, Weichu Chen, Yun Wang 0008, Dongwon You, Zheng Sun, Yuncheng Zhang, Hongye Huang, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

2021 Symposium on VLSI Circuits   2021-June   1 - 2   2021年

Dual-Layer Proton Irradiation for Creating Thermally-Stable High-Resistivity Region in Si CMOS Substrate.

Hans Herdian, Takeshi Inoue, Takuichi Hirano, Masatsugu Sogabe, Atsushi Shirane, Kenichi Okada

ESSDERC   2021-September   191 - 194   2021年

A 28-GHz Phased-Array Relay Transceiver for 5G Network Using Vector-Summing Backscatter with 24-GHz Wireless Power and LO Transfer.

Michihiro Ide, Atsushi Shirane, Kiyoshi Yanagisawa, Dongwon You, Jian Pang, Kenichi Okada

2021 Symposium on VLSI Circuits   2021-June ( 4 )   1 - 2   2021年

300GHz Band On-Chip Vivaldi Antenna on Dual-Layer Proton Irradiated CMOS Si Substrate

Hans Herdian, Takeshi Inoue, Takuichi Hirano, Masatsugu Sogabe, Atsushi Shirane, Kenichi Okada

Asia-Pacific Microwave Conference Proceedings, APMC   2021-November   440 - 442   2021年

A 0.25 mm2 BLE Transmitter with Direct Antenna Interface and 19% System Efficiency Using Duty-Cycled Edge-Timing Calibration.

Zheng Sun, Dingxin Xu, Junjun Qiu, Zezheng Liu, Yuncheng Zhang, Hongye Huang, Hanli Liu, Bangan Liu, Zheng Li, Jian Pang, Atsushi Shirane, Kenichi Okada

47th ESSCIRC 2021 - European Solid State Circuits Conference(ESSCIRC)   499 - 502   2021年

A 28GHz Bi-direction Transceiver with Temperature Compensation

Yi Zhang, Jian Pang, Zheng Li, Atsushi Shirane, Kenichi Okada

2021 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2021   80 - 81   2021年

A 39GHz Divide-by-8 LC-Ring ILFD Designed for 5G New Radio n260 Band

Yudai Yamazaki, Joshua Alvin, Jian Pang, Atsushi Shirane, Kenichi Okada

2021 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2021   74 - 75   2021年

A Flexible Element Antenna for Ka-Band Active Phased Array SATCOM Transceiver

Dongwon You, Daisuke Awaji, Atsushi Shirane, Hiraku Sakamoto, Kenichi Okada

Asia-Pacific Microwave Conference Proceedings, APMC   2020-December   991 - 993   2020年12月

A Compact 37-40GHz CMOS Switch-Type Phase Shifter with Fine-Tuning Stage Achieving 0.4-dB RMS Gain Error

Jian Pang, Xueting Luo, Zheng Li, Atsushi Shirane, Kenichi Okada

Proceedings of 2020 IEEE International Conference on Integrated Circuits, Technologies and Applications, ICTA 2020   5 - 6   2020年11月

A Cmos ka-band wireless transceiver for future non-Terrestrial 6g networks

Atsushi Shirane, Yun Wang, Kenichi Okada

2020 IEEE 15th International Conference on Solid-State and Integrated Circuit Technology, ICSICT 2020 - Proceedings   2020年11月

A compact TF-based LC-VCO with ultra-low-power operation and supply pushing reduction for iot applications

Zheng Sun, Dingxin Xu, Hongye Huang, Zheng Li, Hanli Liu, Bangan Liu, Jian Pang, Teruki Someya, Atsushi Shirane, Kenichi Okada

IEICE Transactions on Electronics   E103C ( 10 )   505 - 513   2020年10月

Sub-Terahertz 300GHz Amplifier on CMOS for Ultra-High Data-Rate Wireless Communications

Korkut Kaan Tokgoz, Kenichi Okada

2020 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2020   202 - 204   2020年9月

300-GHz-Band 120-Gb/s Wireless Front-End Based on InP-HEMT PAs and Mixers

Hiroshi Hamada, Takuya Tsutsumi, Hideaki Matsuzaki, Takuya Fujimura, Ibrahim Abdo, Atsushi Shirane, Kenichi Okada, Go Itami, Ho Jin Song, Hiroki Sugiyama, Hideyuki Nosaka

IEEE Journal of Solid-State Circuits   55 ( 9 )   2316 - 2335   2020年9月

A 300GHz wireless transceiver in 65nm CMOS for IEEE802.15.3d using push-push subharmonic mixer

Ibrahim Abdo, Takuya Fujimura, Tsuyoshi Miura, Korkut K. Tokgoz, Hiroshi Hamada, Hideyuki Nosaka, Atsushi Shirane, Kenichi Okada

IEEE MTT-S International Microwave Symposium Digest   2020-August   623 - 626   2020年8月

A CMOS Ka-Band SATCOM Transceiver with ACI-Cancellation Enhanced Dual-Channel Low-NF Wide-Dynamic-Range RX and High-Linearity TX

Yun Wang, Dongwon You, Xi Fu, Takeshi Nakamura, Ashbir Aviat Fadila, Teruki Someya, Atsuhiro Kawaguchi, Jian Pang, Kiyoshi Yanagisawa, Bangan Liu, Yuncheng Zhang, Haosheng Zhang, Rui Wu, Atsushi Shirane, Shunichiro Masaki, Daisuke Yamazaki, Kenichi Okada

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium   2020-August   355 - 358   2020年8月

A 68-dB isolation 1.0-dB loss compact CMOS SPDT RF switch utilizing switched resonance network

Xi Fu, Yun Wang, Zheng Li, Atsushi Shirane, Kenichi Okada

IEEE MTT-S International Microwave Symposium Digest   2020-August   1315 - 1318   2020年8月

A 28-GHz CMOS Phased-Array Beamformer Supporting Dual-Polarized MIMO with Cross-Polarization Leakage Cancellation

Jian Pang, Zheng Li, Xueting Luo, Joshua Alvin, Rattanan Saengchan, Ashbir Aviat Fadila, Kiyoshi Yanagisawa, Yi Zhang, Zixin Chen, Zhongliang Huang, Xiaofan Gu, Rui Wu, Yun Wang, Dongwon You, Bangan Liu, Zheng Sun, Yucheng Zhang, Hongye Huang, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

IEEE Symposium on VLSI Circuits, Digest of Technical Papers   2020-June   2020年6月

A 29% PAE 1.5Bit-DSM-Based Polar Transmitter with Spur-Mitigated Injection-Locked PLL

Yuncheng Zhang, Bangan Liu, Xiaofan Gu, Chun Wang, Kiyoshi Yanagisawa, Junjun Qiu, Yun Wang, Jian Pang, Atsushi Shirane, Kenichi Okada

IEEE Symposium on VLSI Circuits, Digest of Technical Papers   2020-June   2020年6月

A 39-GHz 64-Element Phased-Array Transceiver with Built-In Phase and Amplitude Calibrations for Large-Array 5G NR in 65-nm CMOS

Yun Wang, Rui Wu, Jian Pang, Dongwon You, Ashbir Aviat Fadila, Rattanan Saengchan, Xi Fu, Daiki Matsumoto, Takeshi Nakamura, Ryo Kubozoe, Masaru Kawabuchi, Bangan Liu, Haosheng Zhang, Junjun Qiu, Hanli Liu, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   55 ( 5 )   1249 - 1269   2020年5月

Millimeter-Wave CMOS Phased-Array Transceiver Supporting Dual-Polarized MIMO for 5G NR

Kenichi Okada, Jian Pang

Proceedings of the Custom Integrated Circuits Conference   2020-March   2020年3月

Fully synthesized digital PLL

Bangan Liu, Wei Deng, Kenichi Okada

Phase-Locked Frequency Generation and Clocking   231 - 266   2020年1月

Ultra-low-power ADPLL

Hanli Liu, Kenichi Okada

Phase-Locked Frequency Generation and Clocking   267 - 293   2020年1月

A 28GHz CMOS Differential Bi-Directional Amplifier for 5G NR

Zheng Li, Jian Pang, Ryo Kubozoe, Xueting Luo, Rui Wu, Yun Wang, Dongwon You, Ashbir Aviat Fadila, Joshua Alvin, Bangan Liu, Zheng Sun, Hongye Huang, Atsushi Shirane, Kenichi Okada

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   2020-January   5 - 6   2020年1月

A 28.16-Gb/s Area-Efficient 60-GHz CMOS Bidirectional Transceiver for IEEE 802.11ay

Jian Pang, Bangan Liu, Makihiko Katsuragi, Kento Kimura, Atsushi Shirane, Kenichi Okada, Korkut Kaan Tokgoz, Shotaro Maki, Zheng Li, Xueting Luo, Ibrahim Abdo, Seitaro Kawai, Hanli Liu, Zheng Sun

IEEE Transactions on Microwave Theory and Techniques   68 ( 1 )   252 - 263   2020年1月

Total Ionizing Dose Effects on 28GHz CMOS Bi-Directional Transceiver for 5G Non-Terrestrial Networks

Atsuhiro Kawaguchi, Jian Pang, Zheng Li, Kiyoshi Yanagisawa, Atsushi Shirane, Kenichi Okada

2020 20th European Conference on Radiation and Its Effects on Components and Systems, RADECS 2020 - Proceedings   2020年

A 6.4 nW 1.7% Relative Inaccuracy CMOS Temperature Sensor Utilizing Sub-Thermal Drain Voltage Stabilization and Frequency-Locked Loop

Teruki Someya, A. K. M. Mahfuzul Islam, Kenichi Okada

IEEE Solid-State Circuits Letters   3   458 - 461   2020年

Ultralow-power class-c complementary colpitts crystal oscillator

Xu, Z., Kimura, N., Okada, K., Miyahara, M.

IEEE Solid-State Circuits Letters   3   274 - 277   2020年

A Fully-Synthesizable Fractional-N Injection-Locked PLL for Digital Clocking with Triangle/Sawtooth Spread-Spectrum Modulation Capability in 5-nm CMOS

Bangan Liu, Zheng Li, Xi Fu, Atsushi Shirane, Hitoshi Kurosu, Yoshinori Nakane, Shunichiro Masaki, Kenichi Okada, Yuncheng Zhang, Junjun Qiu, Hongye Huang, Zheng Sun, Dingxin Xu, Haosheng Zhang, Yun Wang, Jian Pang

IEEE Solid-State Circuits Letters   3   34 - 37   2020年

A 28-GHz CMOS vector-summing phase shifter featuring I/Q imbalance calibration supporting 11.2Gb/s in 256QAM for 5G new radio

Jian Pang, Ryo Kubozoe, Zheng Li, Masaru Kawabuchi, Atsushi Shirane, Kenichi Okada

IEICE Transactions on Electronics   E103C ( 2 )   39 - 47   2020年

A 28-GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR.

Jian Pang, Zheng Li, Ryo Kubozoe, Xueting Luo, Rui Wu, Yun Wang 0008, Dongwon You, Ashbir Aviat Fadila, Rattanan Saengchan, Takeshi Nakamura, Joshua Alvin, Daiki Matsumoto, Bangan Liu, Aravind Tharayil Narayanan, Junjun Qiu, Hanli Liu, Zheng Sun, Hongye Huang, Korkut Kaan Tokgoz, Keiichi Motoi, Naoki Oshima, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

IEEE J. Solid State Circuits   55 ( 9 )   2371 - 2386   2020年

Millimeter-wave phased-array transceiver using CMOS technology

Kenichi Okada

Asia-Pacific Microwave Conference Proceedings, APMC   2019-December   729 - 731   2019年12月

Millimeter-wave InP Device Technologies for Ultra-high Speed Wireless Communications toward beyond 5G

H. Hamada, H. Nosaka, T. Tsutsumi, H. Sugiyama, H. Matsuzaki, H. J. Song, G. Itami, T. Fujimura, I. Abdo, K. Okada

Technical Digest - International Electron Devices Meeting, IEDM   2019-December   2019年12月

A 265-μW Fractional-N Digital PLL with Seamless Automatic Switching Sub-Sampling/Sampling Feedback Path and Duty-Cycled Frequency-Locked Loop in 65-nm CMOS

Hanli Liu, Atsushi Shirane, Kenichi Okada, Zheng Sun, Hongye Huang, Wei Deng, Teerachot Siriburanon, Jian Pang, Yun Wang, Rui Wu, Teruki Someya

IEEE Journal of Solid-State Circuits   54 ( 12 )   3478 - 3492   2019年12月

10GHz varactor-less VCO with helium-3 Ion irradiated inductor

Hans Herdian, Haosheng Zhang, Aravind Tharayil Narayanan, Atsushi Shirane, Kenichi Okada

Asia-Pacific Microwave Conference Proceedings, APMC   2019-December   63 - 65   2019年12月

300-GHz 120-Gb/s Wireless Transceiver with High-Output-Power and High-Gain Power Amplifier Based on 80-nm InP-HEMT Technology

Hiroshi Hamada, Takuya Tsutsumi, Go Itami, Hiroki Sugiyama, Hideaki Matsuzaki, Kenichi Okada, Hideyuki Nosaka

2019 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2019   2019年11月

An IoT Sensor Node SoC with Dynamic Power Scheduling for Sustainable Operation in Energy Harvesting Environment

Yuji Yano, Seiya Yoshida, Shintaro Izumi, Hiroshi Kawaguchi, Tetsuya Hirose, Masaya Miyahara, Teruki Someya, Kenichi Okada, Ippei Akita, Yoshihiko Kurui, Hideyuki Tomizawa, Masahiko Yoshimoto

Proceedings - 2019 IEEE Asian Solid-State Circuits Conference, A-SSCC 2019   267 - 270   2019年11月

ULPAC: A Miniaturized Ultralow-Power Atomic Clock

Haosheng Zhang, Hans Herdian, Aravind Tharayil Narayanan, Atsushi Shirane, Mitsuru Suzuki, Kazuhiro Harasaka, Kazuhiko Adachi, Shigeyoshi Goka, Shinya Yanagimachi, Kenichi Okada

IEEE Journal of Solid-State Circuits   54 ( 11 )   3135 - 3148   2019年11月

Millimeter-Wave CMOS Phased-Array Transceiver Toward 1Tbps Wireless Communication

Kenichi Okada

2019 IEEE BiCMOS and Compound Semiconductor Integrated Circuits and Technology Symposium, BCICTS 2019   2019-May   122 - 123   2019年11月

Electromagnetic simulation of CMOS on-chip spiral inductors in 5 GHz band

Takuichi Hirano, Ning Li, Kenichi Okada, Takeshi Inoue, Masatsugu Sogabe

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings   1903 - 1904   2019年7月

A 39GHz 64-Element Phased-Array CMOS Transceiver with Built-in Calibration for Large-Array 5G NR

Yun Wang, Rui Wu, Jian Pang, Dongwon You, Ashbir Aviat Fadila, Rattanan Saengchan, Xi Fu, Daiki Matsumoto, Takeshi Nakamura, Ryo Kubozoe, Masaru Kawabuchi, Bangan Liu, Haosheng Zhang, Junjun Qiu, Hanli Liu, Wei Deng, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium   2019-June   279 - 282   2019年6月

0.2mW 70Fs<inf>rms</inf>-Jitter Injection-Locked PLL Using De-Sensitized SSPD-Based Injecting-Time Self-Alignment Achieving -270dB FoM and -66dBc Reference Spur

Haosheng Zhang, Aravind Tharayil Narayanan, Hans Herdian, Bangan Liu, Yun Wang, Atsushi Shirane, Kenichi Okada

IEEE Symposium on VLSI Circuits, Digest of Technical Papers   2019-June   C38 - C39   2019年6月

A 28-GHz CMOS Phased-Array Transceiver Based on LO Phase-Shifting Architecture With Gain Invariant Phase Tuning for 5G New Radio

Jian Pang, Rui Wu, Yun Wang, Masato Dome, Hisashi Kato, Hongye Huang, Aravind Tharayil Narayanan, Hanli Liu, Bangan Liu, Takeshi Nakamura, Takuya Fujimura, Masaru Kawabuchi, Ryo Kubozoe, Tsuyoshi Miura, Daiki Matsumoto, Zheng Li, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   54 ( 5 )   1228 - 1242   2019年5月

A 300GHz dielectric lens antenna

Ibrahim Abdo, Takuya Fujimura, Tsuyoshi Miura, Atsushi Shirane, Kenichi Okada

GSMM 2019 - 12th Global Symposium on Millimeter Waves, Proceeding   17 - 19   2019年5月

A 50.1-Gb/s 60-GHz CMOS Transceiver for IEEE 802.11ay With Calibration of LO Feedthrough and I/Q Imbalance

Jian Pang, Shotaro Maki, Seitarou Kawai, Noriaki Nagashima, Yuuki Seo, Masato Dome, Hisashi Kato, Makihiko Katsuragi, Kento Kimura, Satoshi Kondo, Yuki Terashima, Hanli Liu, Teerachot Siriburanon, Aravind Tharayil Narayanan, Nurul Fajri, Tohru Kaneko, Toru Yoshioka, Bangan Liu, Yun Wang, Rui Wu, Ning Li, Korkut Kaan Tokgoz, Masaya Miyahara, Atsushi Shirane, Kenichi Okada

IEEE Journal of Solid-State Circuits   54 ( 5 )   1375 - 1390   2019年5月

An HDL-described Fully-synthesizable Sub-GHz IoT Transceiver with Ring Oscillator based Frequency Synthesizer and Digital Background EVM Calibration

Bangan Liu, Yuncheng Zhang, Junjun Qiu, Wei Deng, Zule Xu, Haosheng Zhang, Jian Pang, Yun Wang, Rui Wu, Teruki Someya, Atsushi Shirane, Kenichi Okada

Proceedings of the Custom Integrated Circuits Conference   2019-April   1 - 4   2019年4月

A power-efficient pulse-vco for chip-scale atomic clock

Haosheng Zhang, Aravind Tharayil Narayanan, Hans Herdian, Bangan Liu, Rui Wu, Atsushi Shirane, Kenichi Okada

IEICE Transactions on Electronics   E102C ( 4 )   276 - 286   2019年4月

29.4 Ultra-Low-Power Atomic Clock for Satellite Constellation with 2.2×10^-12 Long-Term Allan Deviation Using Cesium Coherent Population Trapping

Haosheng Zhang, Hans Herdian, Aravind Tharayil Narayanan, Atsushi Shirane, Mitsuru Suzuki, Kazuhiro Harasaka, Kazuhiko Adachi, Shinya Yanagimachi, Kenichi Okada

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   2019-February   462 - 464   2019年3月

16.1 A 265μW Fractional-N Digital PLL with Seamless Automatic Switching Subsampling/Sampling Feedback Path and Duty-Cycled Frequency-Locked Loop in 65nm CMOS

Hanli Liu, Zheng Sun, Hongye Huang, Wei Deng, Teerachot Siriburanon, Jian Pang, Yun Wang, Rui Wu, Teruki Someya, Atsushi Shirane, Kenichi Okada

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   2019-February   256 - 258   2019年3月

A -194 dBC/Hz FOM VCO with low-supply sensitivity for ultra-low-power atomic clock

Haosheng Zhang, Hans Herdian, Aravind Tharayil Narayanan, Bangan Liu, Rui Wu, Atsushi Shirane, Kenichi Okada

Asia-Pacific Microwave Conference Proceedings, APMC   2018-November   788 - 790   2019年1月

Type-I digital ring-based PLL using loop delay compensation and ADC-based sampling phase detector

Xu, Z., Firdauzi, A., Miyahara, M., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E102C ( 7 )   520 - 529   2019年

A pulse-tail-feedback LC-VCO with 700 Hz flicker noise corner and −195 dBC Fom

Narayanan, A.T., Okada, K.

IEICE Transactions on Electronics   E102C ( 7 )   595 - 606   2019年

A 0.4-ps-Jitter -52-dBc-Spur Synthesizable Injection-Locked PLL with Self-Clocked Nonoverlap Update and Slope-Balanced Subsampling BBPD

Bangan Liu, Huy Cu Ngo, Kengo Nakata, Wei Deng, Yuncheng Zhang, Junjun Qiu, Toru Yoshioka, Jun Emmei, Jian Pang, Aravind Tharayil Narayanan, Haosheng Zhang, Dongsheng Yang, Hanli Liu, Teruki Someya, Atsushi Shirane, Kenichi Okada

IEEE Solid-State Circuits Letters   2 ( 1 )   5 - 8   2019年

A 28GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR.

Jian Pang, Zheng Li, Ryo Kubozoe, Xueting Luo, Rui Wu, Yun Wang 0008, Dongwon You, Ashbir Aviat Fadila, Rattanan Saengchan, Takeshi Nakamura, Joshua Alvin, Daiki Matsumoto, Aravind Tharayil Narayanan, Bangan Liu, Junjun Qiu, Hanli Liu, Zheng Sun, Hongye Huang, Korkut Kaan Tokgoz, Keiichi Motoi, Naoki Oshima, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Atsushi Shirane, Kenichi Okada

IEEE International Solid- State Circuits Conference(ISSCC)   55 ( 9 )   344 - 346   2019年

A 273-301-GHz Amplifier with 21-dB Peak Gain in 65-nm Standard Bulk CMOS

Tokgoz, K.K., Abdo, I., Fujimura, T., Pang, J., Kawano, Y., Iwai, T., Kasamatsu, A., Watanabe, I., Okada, K.

IEEE Microwave and Wireless Components Letters   29 ( 5 )   342 - 344   2019年

A 60-GHz 3.0-Gb/s Spectrum Efficient BPOOK Transceiver for Low-Power Short-Range Wireless in 65-nm CMOS

Wang, Y., Liu, B., Wu, R., Liu, H., Narayanan, A.T., Pang, J., Li, N., Yoshioka, T., Terashima, Y., Zhang, H., Tang, D., Katsuragi, M., Lee, D., Choi, S., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   54 ( 5 )   1363 - 1374   2019年

CMOS transceiver design for ultra-high-speed millimeter-wave wireless communications

Okada, K., Wu, R.

Millimeter-Wave Circuits for 5G and Radar   193 - 242   2019年

A 28GHz CMOS Phase Shifter Supporting 11.2Gb/s in 256QAM with an RMS Gain Error of 0.13dB for 5G Mobile Network

Jian Pang, Ryo Kubozoe, Zheng Li, Masaru Kawabuchi, Kenichi Okada

2018 48th European Microwave Conference, EuMC 2018   807 - 810   2018年11月

A Compact 39-GHz 17.2-dBm Power Amplifier for 5G Communication in 65-nm CMOS

Yun Wang, Rui Wu, Kenichi Okada

2018 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2018   2018年11月

A 64μs Start-Up 26/40MHz Crystal Oscillator with Negative Resistance Boosting Technique Using Reconfigurable Multi-Stage Amplifier

Masaya Miyahara, Yukiya Endo, Kenichi Okada, Akira Matsuzawa

IEEE Symposium on VLSI Circuits, Digest of Technical Papers   2018-June   115 - 116   2018年10月

A 0.85mm² BLE Transceiver with Embedded T/R Switch, 2.6mW Fully-Passive Harmonic Suppressed Transmitter and 2.3mW Hybrid-Loop Receiver

Zheng Sun, Hanli Liu, Dexian Tang, Hongye Huang, Tohru Kaneko, Rui Wu, Wei Deng, Kenichi Okada

ESSCIRC 2018 - IEEE 44th European Solid State Circuits Conference   310 - 313   2018年10月

300-GHz. 100-Gb/s InP-HEMT Wireless Transceiver Using a 300-GHz Fundamental Mixer

Hiroshi Hamada, Takuya Fujimura, Ibrahim Abdo, Kenichi Okada, Ho Jin Song, Hiroki Sugiyama, Hideaki Matsuzaki, Hideyuki Nosaka

IEEE MTT-S International Microwave Symposium Digest   2018-June   1480 - 1483   2018年8月

A 28GHz CMOS phased-array transceiver featuring gain invariance based on LO phase shifting architecture with 0.1-degree beam-steering resolution for 5G New Radio

Jian Pang, Rui Wu, Yun Wang, Masato Dome, Hisashi Kato, Hongye Huang, Aravind Tharayil Narayanan, Hanli Liu, Bangan Liu, Takeshi Nakamura, Takuya Fujimura, Masaru Kawabuchi, Ryo Kubozoe, Tsuyoshi Miura, Daiki Matsumoto, Naoki Oshima, Keiichi Motoi, Shinichi Hori, Kazuaki Kunihiro, Tomoya Kaneko, Kenichi Okada

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium   2018-June   56 - 59   2018年8月

A 1.2ps-jitter fully-synthesizable fully-calibrated fractional-N injection-locked PLL using true arbitrary nonlinearity calibration technique

Bangan Liu, Huy Cu Ngo, Kengo Nakata, Wei Deng, Yuncheng Zhang, Junjun Qiu, Torn Yoshioka, Jun Emmei, Haosheng Zhang, Jian Pang, Aravind Tharayil Narayanan, Dongsheng Yang, Hanli Liu, Kenichi Okada, Akira Matsuzawa

2018 IEEE Custom Integrated Circuits Conference, CICC 2018   1 - 4   2018年5月

A 120Gb/s 16QAM CMOS millimeter-wave wireless transceiver

Korkut K. Tokgoz, Shotaro Maki, Jian Pang, Noriaki Nagashima, Ibrahim Abdo, Seitaro Kawai, Takuya Fujimura, Yoichi Kawano, Toshihide Suzuki, Taisuke Iwai, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   61   168 - 170   2018年3月

An ADPLL-centric bluetooth low-energy transceiver with 2.3mW interference-tolerant hybrid-loop receiver and 2.9mW single-point polar transmitter in 65nm CMOS

Hanli Liu, Zheng Sun, Dexian Tang, Hongye Huang, Tohru Kaneko, Wei Deng, Rui Wu, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   61   444 - 446   2018年3月

A 0.98mW fractional-N ADPLL using 10b isolated constant-slope DTC with FOM of -246dB for IoT applications in 65nm CMOS

Hanli Liu, Dexian Tang, Zheng Sun, Wei Deng, Huy Cu Ngo, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   61   246 - 248   2018年3月

A Sub-mW Fractional-N ADPLL with FOM of -246 dB for IoT applications

Liu, H., Tang, D., Sun, Z., Deng, W., Ngo, H.C., Okada, K.

IEEE Journal of Solid-State Circuits   53 ( 12 )   3540 - 3552   2018年

60GHz帯発振回路チップへ埋め込んだセミリジッドケーブルモノポールアンテナの放射特性

齊藤雄太, 戸村崇, 広川二郎, 岡田健一

電子情報通信学会技術研究報告   118 ( 310(AP2018 101-144)(Web) )   2018年

A 28.16-Gb/s Area-Efficient 60GHz CMOS Bi-Directional Transceiver for IEEE 802.11ay.

Jian Pang, Korkut Kaan Tokgoz, Shotaro Maki, Zheng Li, Xueting Luo, Ibrahim Abdo, Seitarou Kawai, Hanli Liu, Bangan Liu, Makihiko Katsuragi, Kento Kimura, Atsushi Shirane, Kenichi Okada

IEEE Asian Solid-State Circuits Conference(A-SSCC)   68 ( 1 )   77 - 78   2018年

A DPLL-Centric bluetooth low-energy transceiver with a 2.3-mW interference-tolerant hybrid-loop receiver in 65-nm CMOS

Liu, H., Sun, Z., Tang, D., Huang, H., Kaneko, T., Chen, Z., Deng, W., Wu, R., Okada, K.

IEEE Journal of Solid-State Circuits   53 ( 12 )   3672 - 3687   2018年

A low-power pulse-shaped duobinary ASK modulator for IEEE 802.11ad compliant 60 GHz Transmitter in 65 nm CMOS

Liu, B., Wang, Y., Pang, J., Zhang, H., Yang, D., Narayanan, A.T., Lee, D.Y., Choi, S.T., Wu, R., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E101C ( 2 )   126 - 134   2018年

A 28-GHz fractional-N frequency synthesizer with reference and frequency doublers for 5G mobile communications in 65nm CMOS

Liu, H., Siriburanon, T., Nakata, K., Deng, W., Son, J.H., Lee, D.Y., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E101C ( 4 )   187 - 196   2018年

Design of low-loss 60 GHz integrated antenna switch in 65 nm CMOS

Tokgoz, K.K., Kawai, S., Okada, K., Matsuzawa, A.

IEICE Electronics Express   15 ( 7 )   2018年

Special section on analog circuits and their application technologies

Okada, K.

IEICE Transactions on Electronics   E101C ( 7 )   430 - 431   2018年

Gain measurement of 60 GHz CMOS on-chip dipole antenna by proton irradiation

T. Hirano, N. Li, T. Inoue, H. Yagi, K. Okada, A. Matsuzawa

2017 International Symposium on Antennas and Propagation, ISAP 2017   2017-January   1 - 2   2017年12月

Comparison between L-2L and thru-reflect-line de-embedding methods for W-band CMOS amplifier design

Ibrahim Abdo, Korkut Kaan Tokgoz, Takuya Fujimura, Kenichi Okada, Akira Matsuzawa

2017 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2017   34 - 36   2017年9月

A 100-123GHz CMOS frequency doubler with 5.5dBm output power and high fundamental rejection

Ibrahim Abdo, Korkut Kaan Tokgoz, Takuya Fujimura, Kenichi Okada, Akira Matsuzawa

2017 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2017   138 - 140   2017年9月

A low-loss 60GHz integrated antenna switch in 65nm CMOS

Korkut Kaan Tokgoz, Seitaro Kawai, Kenichi Okada, Akira Matsuzawa

2017 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2017   50 - 52   2017年9月

A 100mW 3.0 Gb/s spectrum efficient 60 GHz Bi-Phase OOK CMOS transceiver

Yun Wang, Bangan Liu, Hanli Liu, Aravind Tharayil Narayanan, Jian Pang, Ning Li, Torn Yoshioka, Yuki Terashima, Haosheng Zhang, Dexian Tang, Makihiko Katsuragi, Daeyoung Lee, Sungtae Choi, Rui Wu, Kenichi Okada, Akira Matsuzawa

IEEE Symposium on VLSI Circuits, Digest of Technical Papers   C298 - C299   2017年8月

A pulse-tail-feedback VCO achieving FoM of 195dBc/Hz with flicker noise corner of 700Hz

Aravind Tharayil Narayanan, Ning Li, Kenichi Okada, Akira Matsuzawa

IEEE Symposium on VLSI Circuits, Digest of Technical Papers   C124 - C125   2017年8月

Ultra-high-data-rate 60-GHz CMOS transceiver for future radio access network

Rui Wu, Ryo Minami, Yuuki Tsukui, Seitaro Kawai, Yuuki Seo, Shinji Sato, Kento Kimura, Satoshi Kondo, Tomohiro Ueno, Nurul Fajri, Shoutarou Maki, Noriaki Nagashima, Yasuaki Takeuchi, Tatsuya Yamaguchi, Ahmed Musa, Korkut Kaan Tokgoz, Teerachot Siriburanon, Bangan Liu, Yun Wang, Jian Pang, Ning Li, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

Proceedings of International Conference on ASIC   2017-October   1025 - 1028   2017年7月

A pulse VCO with tail filter

Haosheng Zhang, Aravind Tharayil Narayanan, Bangan Liu, Kenichi Okada, Akira Matsuzawa

Asia-Pacific Microwave Conference Proceedings, APMC   942 - 945   2017年6月

A 0.42ps-jitter -241.7dB-FOM synthesizable injection-locked PLL with noise-isolation LDO

Huy Cu Ngo, Kengo Nakata, Toru Yoshioka, Yuki Terashima, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   60   150 - 151   2017年3月

A 128-QAM 60GHz CMOS transceiver for IEEE802.11ay with calibration of LO feedthrough and I/Q imbalance

Jian Pang, Shotaro Maki, Seitarou Kawai, Noriaki Nagashima, Yuuki Seo, Masato Dome, Hisashi Kato, Makihiko Katsuragi, Kento Kimura, Satoshi Kondo, Yuki Terashima, Hanli Liu, Teerachot Siriburanon, Aravind Tharayil Narayanan, Nurul Fajri, Tohru Kaneko, Toru Yoshioka, Bangan Liu, Yun Wang, Rui Wu, Ning Li, Korkut Kaan Tokgoz, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   60   424 - 425   2017年3月

W-band ultra-high data-rate 65nm CMOS wireless transceiver

Korkut Kaan Tokgoz, Shotaro Maki, Seitarou Kawai, Noriaki Nagashima, Yoichi Kawano, Toshihide Suzuki, Taisuke Iwai, Kenichi Okada, Akira Matsuzawa

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   5 - 6   2017年2月

An HDL-synthesized injection-locked PLL using LC-Based DCO for On-chip clock generation

Dongsheng Yang, Wei Deng, Bangan Liu, Aravind Tharayil Narayanan, Teerachot Siriburanon, Kenichi Okada, Akira Matsuzawa

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   13 - 14   2017年2月

An LO-buffer-less 60-GHz CMOS transmitter with oscillator pulling mitigation

Rui Wu, Jian Pang, Yuuki Seo, Kento Kimura, Seitaro Kawai, Shinji Sato, Satoshi Kondo, Tomohiro Ueno, Nurul Fajri, Yasuaki Takeuchi, Tatsuya Yamaguchi, Ahmed Musa, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

2016 IEEE Asian Solid-State Circuits Conference, A-SSCC 2016 - Proceedings   109 - 112   2017年2月

64-QAM 60-GHz CMOS Transceivers for IEEE 802.11ad/ay

Wu, R., Minami, R., Tsukui, Y., Kawai, S., Seo, Y., Sato, S., Kimura, K., Kondo, S., Ueno, T., Fajri, N., Maki, S., Nagashima, N., Takeuchi, Y., Yamaguchi, T., Musa, A., Tokgoz, K.K., Siriburanon, T., Liu, B., Wang, Y., Pang, J., Li, N., Miyahara, M., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   52 ( 11 )   2871 - 2891   2017年

A fully-synthesizable 10.06Gbps 16.1mW injection-locked CDR in 28nm FDSOI

Narayanan, A.T., Deng, W., Yang, D., Wu, R., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E100C ( 3 )   259 - 267   2017年

Analysis of effective material properties of metal dummy fills in a CMOS chip

Hirano, T., Li, N., Okada, K.

IEICE Transactions on Communications   E100B ( 5 )   793 - 798   2017年

A 20-GHz differential push-push VCO for 60-GHz frequency synthesizer toward 256 QAM wireless transmission in 65-nm CMOS

Wang, Y., Katsuragi, M., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E100C ( 6 )   568 - 575   2017年

A -194.0dBc/Hz FoM CMOS tail-filtering VCO using Helium-3 ion irradiation technique

Hanli Liu, Ning Li, Aravind Tharayil Narayanan, Teerachot Siriburanon, Takuichi Hirano, Kenichi Okada, Akira Matsuzawa, Takeshi Inoue, Hitoshi Sakane

EuMIC 2016 - 11th European Microwave Integrated Circuits Conference   213 - 216   2016年12月

An LC-DCO based synthesizable injection-locked PLL with an FoM of -250.3dB

Dongsheng Yang, Wei Deng, Bangan Liu, Teerachot Siriburanon, Kenichi Okada, Akira Matsuzawa

European Solid-State Circuits Conference   2016-October   197 - 200   2016年10月

A 2 GHz 3.1 mW type-I digital ring-based PLL

Zule Xu, Anugerah Firdauzi, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

European Solid-State Circuits Conference   2016-October   205 - 208   2016年10月

[依頼講演］ミリ波を用いる5Gセルラネットワークを実現するために 査読

タン ザカン, 阪口 啓, 荒木純道, 安藤 真, 廣川二郎, 府川和彦, 張 裕淵, 高田潤一, 齋藤健太郎, 松澤 昭, 岡田健一, 宮原正也

信学技法   Vol.   2016年10月

A 28-Gb/s 60-GHz wireless transceiver in 65nm CMOS with 64QAM capability

Kenichi Okada

Proceedings - 2015 IEEE 11th International Conference on ASIC, ASICON 2015   2016年7月

An automatic place-and-routed two-stage fractional-N injection-locked PLL using soft injection

Dongsheng Yang, Wei Deng, Aravind Tharayil Narayanan, Kengo Nakata, Teerachot Siriburanon, Kenichi Okada, Akira Matsuzawa

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   25-28-January-2016   1 - 2   2016年3月

Design of 60 GHz CMOS on-chip dipole antenna with 50 % radiation efficiency by helium-3 ion irradiation

Takuichi Hirano, Ning Li, Kenichi Okada, Akira Matsuzawa, Jiro Hirokawa, Makoto Ando, Takeshi Inoue, Hitoshi Sakane

Proceeding - 2015 IEEE International Conference on Antenna Measurements and Applications, IEEE CAMA 2015   2016年3月

A noise reduction technique for divider-less fractional-N frequency synthesizer using phase-interpolation technique

Aravind Tharayil Narayanan, Makihiko Katsuragi, Kengo Nakata, Yuki Terashima, Kenichi Okada, Akira Matsuzawa

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   25-28-January-2016   5 - 6   2016年3月

A 42Gb/s 60GHz CMOS transceiver for IEEE 802.11ay

Rui Wu, Seitaro Kawai, Yuuki Seo, Nurul Fajri, Kento Kimura, Shinji Sato, Satoshi Kondo, Tomohiro Ueno, Teerachot Siriburanon, Shoutarou Maki, Bangan Liu, Yun Wang, Noriaki Nagashima, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   59   248 - 249   2016年2月

A 56Gb/s W-band CMOS wireless transceiver

Korkut K. Tokgoz, Shotaro Maki, Seitaro Kawai, Noriaki Nagashima, Jun Emmei, Masato Dome, Hisashi Kato, Jian Pang, Yoichi Kawano, Toshihide Suzuki, Taisuke Iwai, Yuuki Seo, Kimsrun Lim, Shinji Sato, Li Ning, Kengo Nakata, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   59   242 - 243   2016年2月

Characterization of cross-line up to 110 GHz using two-port measurements

Korkut Kaan Tokgoz, Shotaro Maki, Kenichi Okada, Akira Matsuzawa

2015 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Proceedings   97 - 99   2016年1月

A 60GHz CMOS transceiver considering HCI reliability

Kenichi Okada

2015 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2015 - Proceedings   22 - 24   2016年1月

Synthesis and automatic layout of resistive digital-to-analog converter based on mixed-signal slice cell

Sugawara, M., Mori, K., Xu, Z., Miyahara, M., Okada, K., Matsuzawa, A.

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences   E99A ( 12 )   2435 - 2443   2016年

A Fractional-N Sub-Sampling PLL using a Pipelined Phase-Interpolator with an FoM of -250 dB

Narayanan, A.T., Katsuragi, M., Kimura, K., Kondo, S., Tokgoz, K.K., Nakata, K., Deng, W., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   51 ( 7 )   1630 - 1640   2016年

A 0.0055 mm² 480 μW fully synthesizable PLL using stochastic TDC in 28 nm FDSOI

Yang, D., Ueno, T., Deng, W., Terashima, Y., Nakata, K., Narayanan, A.T., Wu, R., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E99C ( 6 )   632 - 640   2016年

A 2.2 GHz-242 dB-FOM 4.2 mW ADC-PLL Using Digital Sub-Sampling Architecture

Siriburanon, T., Kondo, S., Kimura, K., Ueno, T., Kawashima, S., Kaneko, T., Deng, W., Miyahara, M., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   51 ( 6 )   1385 - 1397   2016年

A 3.6 GHz Low-Noise Fractional-N Digital PLL Using SAR-ADC-Based TDC

Xu, Z., Miyahara, M., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   51 ( 10 )   2345 - 2356   2016年

Accurate Transistor Modeling by Three-Parameter Pad Model for Millimeter-Wave CMOS Circuit Design

Kawai, S., Sato, S., Maki, S., Tokgoz, K.K., Okada, K., Matsuzawa, A.

IEEE Transactions on Microwave Theory and Techniques   64 ( 6 )   1736 - 1744   2016年

A Low-Power Low-Noise mm-Wave Subsampling PLL Using Dual-Step-Mixing ILFD and Tail-Coupling Quadrature Injection-Locked Oscillator for IEEE 802.11ad

Siriburanon, T., Kondo, S., Katsuragi, M., Liu, H., Kimura, K., Deng, W., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   51 ( 5 )   1246 - 1260   2016年

Present and future perspectives on analog circuit design

Okada, K.

Journal of the Institute of Electronics, Information and Communication Engineers   99 ( 9 )   895 - 900   2016年

Substrate noise isolation improvement by helium-3 ion irradiation technique in a triple-well CMOS process

Ning Li, Takeshi Inoue, Takuichi Hirano, Jian Pang, Rui Wu, Kenichi Okada, Hitoshi Sakane, Akira Matsuzawa

European Solid-State Device Research Conference   2015-November   254 - 257   2015年11月

A 28-GHz fractional-N frequency synthesizer with reference and frequency doublers for 5G cellular

Teerachot Siriburanon, Hanli Liu, Kengo Nakata, Wei Deng, Ju Ho Son, Dae Young Lee, Kenichi Okada, Akira Matsuzawa

European Solid-State Circuits Conference   2015-October   76 - 79   2015年10月

[依頼講演］5Gに対する東京工業大学の取組み 〜 ミリ波ヘテロジニアスネットワークを実現するために 〜 査読

阪口 啓, タン ザカン, 荒木純道, 安藤 真, 廣川二郎, 府川和彦, 張 裕淵, 高田潤一, 齋藤健太郎, 松澤 昭, 岡田健一, 宮原正也

信学技法   Vol.   2015年10月

A 20GHz Class-C VCO using noise sensitivity mitigation technique

Kento Kimura, Kenichi Okada, Akira Matsuzawa

2015 IEEE 15th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2015   80 - 82   2015年6月

Cross-line characterization for capacitive cross coupling in differential millimeter-wave CMOS amplifiers

Korkut Kaan Tokgoz, Kimsrun Lim, Yuuki Seo, Seitarou Kawai, Kenichi Okada, Akira Matsuzawa

2015 IEEE 15th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2015   46 - 48   2015年6月

L-2L de-embedding method with double-T-type PAD model for millimeter-wave amplifier design

Seitaro Kawai, Korkut Kaan Tokgoz, Kenichi Okada, Akira Matsuzawa

2015 IEEE 15th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2015   43 - 45   2015年6月

An HCI-healing 60GHz CMOS transceiver

Rui Wu, Seitaro Kawai, Yuuki Seo, Kento Kimura, Shinji Sato, Satoshi Kondo, Tomohiro Ueno, Nurul Fajri, Shoutarou Maki, Noriaki Nagashima, Yasuaki Takeuchi, Tatsuya Yamaguchi, Ahmed Musa, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   58   350 - 351   2015年3月

A 0.048mm² 3mW synthesizable fractional-N PLL with a soft injection-locking technique

Wei Deng, Dongsheng Yang, Aravind Tharayil Narayanan, Kengo Nakata, Teerachot Siriburanon, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   58   252 - 253   2015年3月

A tail-current modulated VCO with adaptive-bias scheme

Aravind Tharayil Narayanan, Wei Deng, Kenichi Okada, Akira Matsuzawa

20th Asia and South Pacific Design Automation Conference, ASP-DAC 2015   36 - 37   2015年3月

An HDL-synthesized gated-edge-injection PLL with a current output DAC

Dongsheng Yang, Wei Deng, Tomohiro Ueno, Teerachot Siriburanon, Satoshi Kondo, Kenichi Okada, Akira Matsuzawa

20th Asia and South Pacific Design Automation Conference, ASP-DAC 2015   2 - 3   2015年3月

A 58.3-to-65.4 GHz 34.2 mW sub-harmonically injection-locked PLL with a sub-sampling phase detection

Teerachot Siriburanon, Tomohiro Ueno, Kento Kimura, Satoshi Kondo, Wei Deng, Kenichi Okada, Akira Matsuzawa

20th Asia and South Pacific Design Automation Conference, ASP-DAC 2015   42 - 43   2015年3月

A 0.015-mm² 60-GHz reconfigurable wake-up receiver by reusing multi-stage LNAs

Rui Wu, Qinghong Bu, Wei Deng, Kenichi Okada, Akira Matsuzawa

2014 IEEE Asian Solid-State Circuits Conference, A-SSCC - Proceedings of Technical Papers   181 - 184   2015年1月

A 0.011 mm² PVT-robust fully-synthesizable CDR with a data rate of 10.05 Gb/s in 28nm FD SOI

Aravind Tharayil Narayanan, Wei Deng, Dongsheng Yang, Rui Wu, Kenichi Okada, Akira Matsuzawa

2014 IEEE Asian Solid-State Circuits Conference, A-SSCC - Proceedings of Technical Papers   285 - 288   2015年1月

A 60-GHz CMOS transmitter with gain-enhanced on-chip antenna for short-range wireless interconnections

Wu, R., Deng, W., Sato, S., Hirano, T., Li, N., Inoue, T., Sakane, H., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E98C ( 4 )   304 - 314   2015年

High-Q Inductors on Locally Semi-Insulated Si Substrate by Helium-3 Bombardment for RF CMOS Integrated Circuits

Li, N., Okada, K., Inoue, T., Hirano, T., Bu, Q., Narayanan, A.T., Siriburanon, T., Sakane, H., Matsuzawa, A.

IEEE Transactions on Electron Devices   62 ( 4 )   1269 - 1275   2015年

Low-phase noise quadrature frequency synthesizer for 60 GHz radios

Deng, W., Siriburanon, T., Musa, A., Okada, K., Matsuzawa, A.

Wireless Transceiver Circuits: System Perspectives and Design Aspects   491 - 514   2015年

Introduction to the December Special Issue on the 2015 IEEE International Solid-State Circuits Conference

Takamiya, M., Wu, J.-T., Ryyn{\"a}nen, J., Okada, K., Kim, J.

IEEE Journal of Solid-State Circuits   50 ( 12 )   2799 - 2803   2015年

Introduction to the special issue on the 40th European Solid-State Circuits Conference (ESSCIRC)

Nagari, A., Okada, K., Verhelst, M.

IEEE Journal of Solid-State Circuits   50 ( 7 )   1512 - 1515   2015年

An AM-PM noise mitigation technique in Class-C VCO

Kimura, K., Narayanan, A.T., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E98C ( 12 )   1161 - 1170   2015年

A constant-current-controlled class-C voltage-controlled oscillator using self-adjusting replica bias circuits

Siriburanon, T., Deng, W., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E98C ( 6 )   471 - 479   2015年

A fully synthesizable all-digital pll with interpolative phase coupled oscillator, current-output DAC, and fine-resolution digital varactor using gated edge injection technique

Deng, W., Yang, D., Ueno, T., Siriburanon, T., Kondo, S., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   50 ( 1 )   68 - 80   2015年

A fully synthesizable injection-locked PLL with feedback current output DAC in 28nm FDSOI

Yang, D., Deng, W., Narayanan, A.T., Wu, R., Liu, B., Okada, K., Matsuzawa, A.

IEICE Electronics Express   12 ( 15 )   2015年

Digitally assisted analog and RF circuits

Okada, K.

IEICE Transactions on Electronics   E98C ( 6 )   461 - 470   2015年

Quadrature Oscillator Connection and Differential Feed of a Patch Antenna on the Thick Resin in a 60GHz band Silicon Chip 査読

Jiro Hirokawa, Naoya Oikawa, Yasutake Hirachi, Kenichi Okada, Makoto Ando

2015 INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY (IWAT)   247 - 248   2015年

Characterization of crossing transmission line using two-port measurements for millimeter-wave CMOS circuit design

Tokgoz, K.K., Lim, K., Kawai, S., Fajri, N., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E98C ( 1 )   35 - 44   2015年

A tail-feedback VCO with self-adjusting current modulation scheme

Aravind Tharayil Narayanan, Wei Deng, Kenichi Okada, Akira Matsuzawa

European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference   707 - 710   2014年12月

A 60-GHz efficiency-enhanced on-chip dipole antenna using helium-3 ion implantation process

Rui Wu, Wei Deng, Shinji Sato, Takuichi Hirano, Ning Li, Takeshi Inoue, Hitoshi Sakane, Kenichi Okada, Akira Matsuzawa

European Microwave Week 2014: Connecting the Future, EuMW 2014 - Conference Proceedings; EuMC 2014: 44th European Microwave Conference   108 - 111   2014年12月

A pulse-driven LC-VCO with a figure-of-merit of -192dBc/Hz

Aravind Tharayil Narayanan, Kento Kimura, Wei Deng, Kenichi Okada, Akira Matsuzawa

European Solid-State Circuits Conference   343 - 346   2014年10月

A millimeter-wave CMOS transceiver toward more than 300Gbps

Kenichi Okada

2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014   1127 - 1129   2014年3月

60-GHz sub-sampling PLL using a dual-step-mixing ILFD

Teerachot Siriburanon, Tomohiro Ueno, Kento Kimura, Satoshi Kondo, Wei Deng, Kenichi Okada, Akira Matsuzawa

2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014   708 - 710   2014年3月

Shunt characterization technique of decoupling transmission line for millimeter-wave CMOS amplifier design

Korkut Kaan Tokgoz, Kimsrun Lim, Kenichi Okada, Akira Matsuzawa

2014 Asia-Pacific Microwave Conference Proceedings, APMC 2014   274 - 276   2014年3月

A 17-mW 5-Gb/s 60-GHz CMOS transmitter with efficiency-enhanced on-chip antenna

Rui Wu, Wei Deng, Shinji Sato, Takuichi Hirano, Ning Li, Takeshi Inoue, Hitoshi Sakane, Kenichi Okada, Akira Matsuzawa

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium   381 - 384   2014年

Coaxial-line Connection of a Circularly-polarized Patch Array Antenna on the Thick Resin and a 60 GHz-band Quadrature Oscillator Chip 査読

Naoya Oikawa, Jiro Hirokawa, Hiroshi Nakano, Yasutake Hirachi, Kenichi Okada, Makoto Ando

2014 IEEE INTERNATIONAL WORKSHOP ON ELECTROMAGNETICS (IEEE IWEM): APPLICATIONS AND STUDENT INNOVATION COMPETITION   169 - 170   2014年

A compact, low-power and low-jitter dual-loop injection locked pll using all-digital pvt calibration

Musa, A., Deng, W., Siriburanon, T., Miyahara, M., Okada, K., Matsuzawa, A.

IEEE Journal of Solid-State Circuits   49 ( 1 )   50 - 60   2014年

A variable-supply-voltage 60-GHz PA with consideration of HCI issues for TDD operation

Wu, R., Tsukui, Y., Minami, R., Okada, K., Matsuzawa, A.

IEICE Transactions on Electronics   E97-C ( 8 )   803 - 812   2014年

A swing-enhanced current-reuse class-C VCO with dynamic bias control circuits

Teerachot Siriburanon, Wei Deng, Kenichi Okada, Akira Matsuzawa

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   25 - 26   2014年

15.1 A 0.0066mm² 780μW fully synthesizable PLL with a current-output DAC and an interpolative phase-coupled oscillator using edge-injection technique

Wei Deng, Dongsheng Yang, Tomohiro Ueno, Teerachot Siriburanon, Satoshi Kondo, Kenichi Okada, Akira Matsuzawa

Digest of Technical Papers - IEEE International Solid-State Circuits Conference   57   266 - 267   2014年

A 60-GHz sub-sampling frequency synthesizer using sub-harmonic injection-locked quadrature oscillators

Teerachot Siriburanon, Tomohiro Ueno, Kento Kimura, Satoshi Kondo, Wei Deng, Kenichi Okada, Akira Matsuzawa

Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium   105 - 108   2014年

A dual-loop injection-locked PLL with all-digital background calibration system for on-chip clock generation

Wei Deng, Ahmed Musa, Teerachot Siriburanon, Masaya Miyahara, Kenichi Okada, Akira Matsuzawa

Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC   21 - 22   2014年