Japan Society for the Promotion of Science

2013.4 - 2014.3

2024 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM 2024)   International Steering Committee, member  

2023.8 - 2024.7   

電子情報通信学会, アンテナ伝播研究会   論文委員会，委員  

2023.6   

2025 International Symposium on Antennas and Propagation (ISAP 2025)   TPC 委員  

2023.6   

電子情報通信学会, 電磁界理論研究会   専門委員  

2023.6   

電子情報通信学会，ソサイエティ大会，シンポジウムセッション「Beyond5G/6Gを支えるミリ波・テラヘルツ波アンテナ・伝搬技術」   オーガナイザ  

2023.4 - 2024.9   

電子情報通信学会, アンテナ伝播研究会   国際委員会  

2022.6   

2022 Asia-Pacific Microwave Conference (APMC 2022)   Technical Program Committee (TPC), Technical Paper Review Group Leader  

2022.5 - 2022.12   

電子情報通信学会, アンテナ伝播研究会   「有限要素法による電磁界解析入門 ～原理とアンテナ・高周波回 路解析の基礎～」ワークショップ実行委員  

2022.2 - 2023.12   

IEEE International Workshop on Electromagnetics: Applications and Student Innovation Com- petition (iWEM) 2021   Technical Program Committee (TPC) Member  

2021.10 - 2022.8   

電子情報通信学会, アンテナ伝播研究会   「独立成分分析の基礎および通信への応用」ワークショップ実行委員  

2021.8 - 2023.12   

電子情報通信学会, アンテナ伝播研究会   「反射鏡アンテナ・レンズアンテナ」ワークショップ実行委員  

2019.9 - 2021.8   

電子情報通信学会 マイクロ波ミリ波フォトニクス研究専門委員会   専門委員  

2019.6 - 2022.3   

2020 International Symposium on Antennas and Propagation (ISAP 2020)   Student Contest 実行委員  

2018.3 - 2021.1   

Evaluation of Stacked Structure for 160 Ghz End-Fire Type Compact Antenna-in-Package Considering Thermal Design

Ryosuke Hasaba, Akihiro Egami, Yohei Morishita, Tomoki Abe, Ken Takahashi, Tomohiro Murata, Masatoshi Suzuki, Yoichi Nakagawa, Yudai Yamazaki, Sunghwan Park, Takaya Uchino, Chenxin Liu, Jun Sakamaki, Takashi Tomura, Hiroyuki Sakai, Makoto Tsukahara, Kenichi Okada, Koji Takinami

2025 IEEE/MTT-S International Microwave Symposium - IMS 2025   663 - 666   2025.6

A 150 GHz High-Power-Density Phased-Array Transceiver in 65nm CMOS for 6G UE Module

Yudai Yamazaki, Sunghwan Park, Takaya Uchino, Chenxin Liu, Jun Sakamaki, Yohei Morishita, Akihiro Egami, Ryosuke Hasaba, Ken Takahashi, Tomoki Abe, Tomohiro Murata, Yoichi Nakagawa, Takashi Tomura, Hiroshi Taneda, Kei Murayama, Makoto Tsukahara, Hiroko Ota, Yoko Nakabayashi, Chun Wang, Hans Herdian, Yi Zhang, Zheng Li, Wenqian Wang, Hongye Huang, Dingxin Xu, Sena Kato, Michihiro Ide, Yuncheng Zhang, Hiroyuki Sakai, Kazuaki Kunihiro, Atsushi Shirane, Koji Takinami, Kenichi Okada

2025 Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)   1 - 3   2025.6

150 GHz-Band Compact Phased-Array AiP Module for XR Applications Toward 6G Reviewed

Yohei Morishita, Ken Takahashi, Ryosuke Hasaba, Akihiro Egami, Tomoki Abe, Masatoshi Suzuki, Tomohiro Murata, Yoichi Nakagawa, Yudai Yamazaki, Sunghwan Park, Takaya Uchino, Chenxin Liu, Jun Sakamaki, Takashi Tomura, Hiroyuki Sakai, Hiroshi Taneda, Kei Murayama, Yoko Nakabayashi, Shinsuke Hara, Issei Watanabe, Akifumi Kasamatsu, Kenichi Okada, Koji Takinami

IEEE Microwave and Wireless Technology Letters   35 ( 6 )   920 - 923   2025.6

Vertically Polarized Omnidirectional Reflector Antenna Fed by a Circular Waveguide Bent TM₀₁ Mode Converter for the 150 GHz Band Reviewed International coauthorship

Jiro Hirokawa, Riki Yanagisawa, Takashi Tomura, Issei Watanabe

IEICE Communications Express   14 ( 6 )   218 - 221   2025.6

A 122 GHz Wirelessly Powered Active Reflector for D-Band Communications Reviewed

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

IEEE Solid-State Circuits Letters   2025.4

Center-Feed Post-Wall Waveguide Series-Feed Sidelobe-Suppression Slot Subarray for Millimeter-Wave Radar Reviewed

Hayato Sato, Jiro Hirokawa, Takashi Tomura

IEICE Communications Express   14 ( 4 )   147 - 150   2025.4

Waveguide $3\times 2$ -Slot Subarray Antenna for Millimeter-Wave Car Radar Reviewed

Ryosuke Sakurai, Jiro Hirokawa, Takashi Tomura

IEICE Communications Express   14 ( 4 )   155 - 158   2025.4

Optimal Adjacent Output Phase Difference Assignments in Generalized One-Dimensional Five-Beam Switching Matrices Reviewed International coauthorship

Shengjia Wu, Jiro Hirokawa, Takashi Tomura, Nelson J. G. Fonseca

IEEE Journal of Microwaves   2025.3

A Compact Wideband Millimeter-Wave Polarization-Reconfigurable Antenna Array Reviewed International coauthorship

Maharana Pratap Singh, Takashi Tomura, Jiro Hirokawa, Saptarshi Ghosh

IEEE Antennas and Wireless Propagation Letters   2025.3

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

Sena Kato, Jill C. 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 0009, Kazuaki Kunihiro, Kenichi Okada 0001, Atsushi Shirane

ISSCC   1 - 3   2025

A 640-Gb/s 4 x 4-MIMO D-Band CMOS Transceiver Chipset Reviewed

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   2024.12

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

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

2024 54th European Microwave Conference (EuMC)   892 - 895   2024.9

Difference-Beam Operation in a Center-Fed Dual-Polarized Parallel-Plate Waveguide Slot Array Antenna Reviewed

Huanqian Xiong, Jiro Hirokawa, Takashi Tomura

IEICE Communications Express   13 ( 9 )   359 - 362   2024.9

Radiation-Tolerant Ka-Band Deployable Phased-Array Transceiver for Low-Earth Orbit Small Satellite Constellation Reviewed International journal

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

Small Satellite Conference,   2024.8

An Inverted-L Monopole Array With High Beam Coverage for Antenna-in-Package Modules at the 151.5–164 GHz Band Reviewed International coauthorship

Alberto Hernández-Escobar, Takashi Tomura, Ryosuke Hasaba, Hiroshi Taneda, Issei Watanabe

IEEE Access   2024.8

SIW-Based Elliptical Slots Antenna with Wide ARBW for Millimeter-Wave Applications

Maharana Pratap Singh, Anil Kumar Nayak, Takashi Tomura, Jiro Hirokawa, Saptarshi Ghosh

2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)   129 - 130   2024.7

Reflection-Canceling Waveguide Narrow-Wall Slot Element Suitable for Diffusion Bonding Of Laminated Metal Plates

Jiro Hirokawa, Rikako Yamaguchi, Takashi Tomura, Minoru Inomata, Wataru Yamada

2024 IEEE INC-USNC-URSI Radio Science Meeting (Joint with AP-S Symposium)   298 - 298   2024.7

Dual-Polarized Full-Metal Perpendicular-Corporate-Feed Parallel-Plate Waveguide Slot Array Antenna Reviewed

Yaxiang Wu, Jiro Hirokawa, Takashi Tomura

IEEE Transactions on Antennas and Propagation   2024.7

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

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   2024.6

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

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   2024.6

Effective Design of an Array of Coupling Slots With a Reflection-Canceling Wall for a Parallel-Plate Slot Array Antenna Reviewed

Tianyu Wang, Takashi Tomura, Jiro Hirokawa

IEEE Access   2024.6

Cylindrical Scattered Field Transformation Applicable for Differences in the Radar Ranges of Transmitter and Receiver—Far-Field Prediction Reviewed

Yoshihiko Akamine, Takashi Tomura, Jiro Hirokawa

IEEE Transactions on Antennas and Propagation   2024.6

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

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

IEEE Microwave and Wireless Technology Letters   2024.6

Stretchable-Substrate-Impregnated Fabric: Deployable Reflectarray Antennas for CubeSats Reviewed International coauthorship

Masato Machida, Takashi Tomura, Hiraku Sakamoto, Tomohiro Fukao

IEEE Access   2024.4

High-gain tapered monopulse antenna based on octuple excitation method in diffusion bonding technology at W-band Reviewed International coauthorship

Adham Mahmoud, Takashi Tomura, Mauro Ettorre, David González‐Ovejero, Ronan Sauleau, Jiro Hirokawa

IET Microwaves, Antennas & Propagation   18 ( 5 )   317 - 330   2024.3

Space Demonstration of Two-layer Deployable Membrane Reflectarray Antenna with Popup Book Mechanism

Hiraku Sakamoto, Takashi Tomura, Atsuki Ochi, Kazuki Nagai, Motoki Moritani, Gen Nakayama, Taichi Oshino

AIAA SCITECH 2024 Forum   2024.1

A Perpendicular-Corporate-Feed Parallel-Plate Slot Array Antenna Based on H-Plane Groove Gap Waveguides With Interlaced Triangular Pins Reviewed

Yaxiang Wu, Jiro Hirokawa, Takashi Tomura

IEEE Transactions on Antennas and Propagation   2024.1

Two-Dimensional One-Body 3 × 3-Way Hollow-Waveguide Nolen Matrix Using a Two-Plane Unequal Division Coupler Reviewed International coauthorship

Qi Li, Jiro Hirokawa, Takashi Tomura, Nelson J. G. Fonseca

IEEE Transactions on Microwave Theory and Techniques   2024.1

No Victim Left Behind: Developing a Dual-Use LEO Satellite System for Real-Time Population Mapping and Everyday Connectivity.

Takumi Ohashi, Futo Noda, Takashi Tomura, Ampan Laosunthara, Koudai Suzuki, Yuno Tanaka, Maki Kishimoto, Rie Seto, Hiraku Sakamoto, Gia Khanh Tran, Atsushi Shirane

ISCIT   152 - 157   2024

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

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   2023.12

Optimal Adjacent Output Phase Difference Assignments in One-Dimensional Parallel Switching Matrices With Four Beams Reviewed International coauthorship

Shengjia Wu, Jiro Hirokawa, Takashi Tomura, Nelson J. G. Fonseca

IEEE Journal of Microwaves   2023.10

A Center-Fed Dual-Polarized Parallel-Plate Waveguide Slot Array Antenna Based on a Feeding Waveguide With Centered Longitudinal Feeding Slots Reviewed

Huanqian Xiong, Jiro Hirokawa, Takashi Tomura

IEEE Access   2023.8

Metallo-Dielectric Millimeter-Wave Huygens’ Quarter-Wave and Half-Wave Plates Reviewed International coauthorship

Mohamed K. Emara, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

IEEE Transactions on Antennas and Propagation   2023.8

Two-plane waveguide coupler with arbitrary coupling ratios in the H-plane and E-plane directions Reviewed

Qi Li, Jiro Hirokawa, Takashi Tomura

IET Microwaves, Antennas & Propagation   17 ( 10 )   818 - 826   2023.7

A Two-Dimensional 6×4-Way Hollow Waveguide Beam-Switching Matrix Reviewed International coauthorship

Qi Li, Jiro Hirokawa, Takashi Tomura, Yuta Takahashi, Naoki Kita, Nelson J. G. Fonseca

IEEE Access   2023.7

A Wideband Full-Metal Sidewall-Loaded Magnetoelectric Dipole Array Based on Combined Ridge and Groove Gap Waveguides in the Q-Band Reviewed International coauthorship

Yaxiang Wu, Takashi Tomura, Jiro Hirokawa, Miao Zhang

IEEE Transactions on Antennas and Propagation   2023.7

A Feeding Network With Collinearly Centered Longitudinal Coupling Slots for a Rectangular Parallel-Plate Slot Array Antenna Reviewed

Tianyu Wang, Takashi Tomura, Jiro Hirokawa, Budhaditya Pyne, Prilando Rizki Akbar, Hirobumi Saito

IEEE Transactions on Antennas and Propagation   2023.7

X-band grating-loaded parallel-plate slot array antenna with low reflection Reviewed

Shuang Ji, Jiro Hirokawa, Takashi Tomura, Hirobumi Saito

IEICE Communications Express   12 ( 6 )   277 - 281   2023.6

Single-Cut Scattered Field Transformation Applicable for Differences in the Radar Ranges of Transmitter and Receiver Reviewed

Yoshihiko Akamine, Takashi Tomura, Jiro Hirokawa

IEEE Transactions on Antennas and Propagation   2023.6

Mixed-mode RF reflectometry of quantum dots for reduction of crosstalk effects Reviewed

Masato Machida, Raisei Mizokuchi, Jun Yoneda, Takashi Tomura, Tetsuo Kodera

Japanese Journal of Applied Physics   62 ( SC )   SC1086 - SC1086   2023.3

Design for Operation in Two Frequency Bands by Division of the Coupled Region in a Waveguide 2-Plane Coupler Reviewed

Shihao Chen, Takashi Tomura, Jiro Hirokawa, Kota Ito, Mizuki Suga, Yushi Shirato, Daisei Uchida, Naoki Kita

IEICE Transactions on Electronics   ( 12 )   729 - 739   2022.12

Control of Radiation Direction in an Aperture Array Excited by a Waveguide 2-Plane Hybrid Coupler Reviewed

Yuki SUNAGUCHI, Takashi TOMURA, Jiro HIROKAWA

IEICE Transactions on Communications   E105.B ( 8 )   906 - 912   2022.8

Short-range transmission improvement by dog-bone cross-slot feed in radial line slot antenna Reviewed

Tuchjuta Ruckkwaen, Takashi Tomura, Jiro Hirokawa

IEICE Communications Express   11 ( 6 )   257 - 262   2022.6

Fast Analysis and Bandwidth Enhancement of the Radiating Subarray by Method of Moments for a Parallel-Plate Slot Array Antenna With Perpendicular-Corporate Feed Reviewed

Shuang Ji, Takashi Tomura, Jiro Hirokawa

IEEE Transactions on Antennas and Propagation   70 ( 4 )   2645 - 2655   2022.4

A Wideband and High-Gain All-Metallic Perpendicular-Corporate-Fed Multi-Layered Parallel-Plate Slot Array Antenna Reviewed

Shuang Ji, Jiro Hirokawa, Takashi Tomura

IEEE Access   2022

Millimeter-Wave Multiplexed Wideband Wireless Link Using Rectangular-Coordinate Orthogonal Multiplexing (ROM) Antennas Reviewed International coauthorship

Takashi Tomura, Jiro Hirokawa, Muhsin Ali, Guillermo Carpintero

JOURNAL OF LIGHTWAVE TECHNOLOGY   39 ( 24 )   7821 - 7830   2021.12

Transmission Characteristics Control of 120 GHz-Band Bandstop Filter by Coupling Alignment-Free Lattice Pattern Reviewed

Akihiko Hirata, Koichiro Itakura, Taiki Higashimoto, Yuta Uemura, Tadao Nagatsuma, Takashi Tomura, Jiro Hirokawa, Norihiko Sekine, Issei Watanabe, Akifumi Kasamatsu

IEICE TRANSACTIONS ON ELECTRONICS   E104C ( 10 )   587 - 595   2021.10

Millimeter-Wave Huygens' Transmit Arrays Based on Coupled Metallic Resonators Reviewed International coauthorship

Soichi Sakurai, Joao G. Nizer Rahmeier, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION   69 ( 5 )   2686 - 2696   2021.5

Connecting Networks for Two-Dimensional Butler Matrices Generating a Triangular Lattice of Beams Reviewed International coauthorship

NELSON J. G. FONSECA, SOPHIE-ABIGAEL GOMANNE, PILAR CASTILLO-TAPIA, OSCAR QUEVEDO-TERUEL, TAKASHI TOMURA, JIRO HIROKAWA

IEEE Journal of Microwaves   1 ( 2 )   646 - 658   2021.4

Control of 120-GHz-Band Split Ring Resonator Filter by Coupling Lattice Pattern Substrate Reviewed

Koichiro Itakura, Akihiko Hirata, Masato Sonoda, Taiki Higashimoto, Tadao Nagatsuma, Takashi Tomura, Jiro Hirokawa, Norihiko Sekine, Issei Watanabe, Akifumi Kasamatsu

IEICE TRANSACTIONS ON ELECTRONICS   E104C ( 3 )   102 - 111   2021.3

All-Dielectric Fabry-Perot-Based Compound Huygens' Structure for Millimeter-Wave Beamforming Reviewed

Mohamed K. Emara, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION   69 ( 1 )   273 - 285   2021.1

Anisotropic Conductivity Measurements by Two Kinds of Multimode Rectangular Plate-Laminated Cavities Reviewed

Takashi Tomura, Jiro Hirokawa

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES   69 ( 1 )   170 - 178   2021.1

Proof-of-Concept on Misalignment Compensation for 5.8-GHz-Band Reflectarray Antennas by Varactor Diodes Reviewed

Keisuke Omoto, Takashi Tomura, Hiraku Sakamoto

IEEE Access   9   54101 - 54108   2021

Eight-Port Feed Radial Line Slot Antenna for Wireless Power Transmission Reviewed

Takashi Tomura, Jiro Hirokawa, Minoru Furukawa, Teruo Fujiwara, Naoki Shinohara

IEEE Open Journal of Antennas and Propagation   2   170 - 180   2021

Improvement of isolation between transmitting and receiving antennas of E-plane arranged waveguide slot arrays by using layers of slit pairs with half-wavelength spacing Reviewed

Kohei Jitosho, Takashi Tomura, Jiro Hirokawa

IEICE COMMUNICATIONS EXPRESS   10 ( 2 )   93 - 98   2021

Fabry-Perot-Based Compound All-Dielectric Huygens' Structure for Circularly Polarized Millimeter-Wave Beamforming Reviewed International coauthorship

Mohamed K. Emara, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS   19 ( 10 )   1784 - 1788   2020.10

Experimental Evaluation of Intersymbol Interference in Non-Far Region Transmission using a Large Array Antenna in the Millimeter-Wave Band Reviewed

Tuchjuta Ruckkwaen, Takashi Tomura, Kiyomichi Araki, Jiro Hirokawa, Makoto Ando

IEICE TRANSACTIONS ON COMMUNICATIONS   E103B ( 10 )   1136 - 1146   2020.10

Sidelobe Suppression in Both the E and H Planes Using Slit Layers over a Corporate-Feed Waveguide Slot Array Antenna Consisting of 2x2-Element Radiating Units Reviewed

Haruka Arakawa, Takashi Tomura, Jiro Hirokawa

IEICE TRANSACTIONS ON COMMUNICATIONS   E103B ( 9 )   960 - 968   2020.9

Dual-Polarized 2-D Beam Mode Orthogonal Multiplexing Antenna System for the Nonfar Region Reviewed

Kentaro Wada, Takashi Tomura, Jiro Hirokawa

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION   68 ( 9 )   6614 - 6623   2020.9

Significance of 3U CubeSat OrigamiSat-1 for space demonstration of multifunctional deployable membrane Reviewed

Kosuke Ikeya, Hiraku Sakamoto, Hiroki Nakanishi, Hiroshi Furuya, Takashi Tomura, Ryoga Ide, Ryo Iijima, Yohei Iwasaki, Keigo Ohno, Keisuke Omoto, Takashi Furuya, Teruaki Hayashi, Masaki Kato, Sae Koide, Madoka Kurosaki, Yuki Nakatsuka, Shigeaki Okuyama, Reo Kashiyama, Junya Nakamura, Wataru Nio, Tsubasa Tsunemitsu, Yutaka Yamazaki, Keisuke Taga, Britta Hohmann, Towa Amamoto, Takaomi Chubachi, Sho Tamura, Hideaki Okada, Akihito Watanabe, Nobuyoshi Kawabata, Toshiyuki Hori, Hiroaki Ito, Takeshi Kuratomi, Yuya Shimoda, Nana Hidaka, Kazuki Watanabe, Ayako Torisaka, Masahiko Yamazaki

Acta Astronautica   173   363 - 377   2020.8

A 38 dB Gain, Low-Loss, Flat Array Antenna for 320–400 GHz Enabled by Silicon-on-Insulator Micromachining Reviewed International coauthorship

Adrian Gomez-Torrent, Takashi Tomura, Wataru Kuramoto, Jiro Hirokawa, Issei Watanabe, Akifumi Kasamatsu, Joachim Oberhammer

IEEE Transactions on Antennas and Propagation   68 ( 6 )   1 - 1   2020.6

Transmission Enhancement in Rectangular-Coordinate Orthogonal Multiplexing by Excitation Optimization of Slot Arrays for a Given Distance in the Non-Far Region Communication Reviewed

Ryotaro OHASHI, Takashi TOMURA, Jiro HIROKAWA

IEICE Transactions on Communications   E103B ( 2 )   130 - 138   2020.2

Laser-Drilled All-Dielectric Huygens' Transmit-Arrays as 120 GHz Band Beamformers Reviewed International coauthorship

Mohamed K. Emara, Sonya K. Stuhec-Leonard, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

IEEE ACCESS   8   153815 - 153825   2020

Novel Unmanned Aerial Vehicle-Based Line-of-Sight MIMO Configuration Independent of Transmitted Distance Using Millimeter Wave Reviewed

Naoki Matsumura, Kentaro Nishimori, Ryotaro Taniguchi, Takefumi Hiraguri, Takashi Tomura, Jiro Hirokawa

IEEE Access   8   11679 - 11691   2020

8 × 2-Element 60-GHz-Band Circularly Polarized Post-Wall Waveguide Slot Array Antenna Loaded With Dipoles Reviewed

Takashi Tomura, Yuta Saito, Jiro Hirokawa

IEEE Access   8   85950 - 85957   2020

Development and Performance Evaluation of Small SAR System for 100-kg Class Satellite Reviewed

Budhaditya Pyne, Hirobumi Saito, Prilando Riziki Akbar, Jiro Hirokawa, Takashi Tomura, Koji Tanaka

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing   13   3879 - 3891   2020

Suppression of E-Plane Sidelobes Using a Double Slit Layer in a Corporate-Feed Waveguide Slot Array Antenna Consisting of $2\times2$ -Element Radiating Units Reviewed

Haruka Arakawa, Hisanori Irie, Takashi Tomura, Jiro Hirokawa

IEEE Transactions on Antennas and Propagation   67 ( 6 )   3743 - 3751   2019.6

Wideband Design of a Short-Slot 2-Plane Coupler by the Mode Matching/FEM Hybrid Analysis Considering the Structural Symmetry Reviewed

Masahiro WAKASA, Dong-Hun KIM, Takashi TOMURA, Jiro HIROKAWA

IEICE Transactions on Communications   E102B ( 5 )   1019 - 1026   2019.5

A PCB-Integratable Metal Cap Slot Antenna for 60-GHz Band Mobile Terminals Reviewed

Takashi TOMURA, Haruhisa HIRAYAMA, Jiro HIROKAWA

IEICE Transactions on Communications   E102B ( 2 )   317 - 323   2019.2

Perpendicular-Corporate Feed in a Four-Layer Circularly-Polarized Parallel-Plate Slot Array Reviewed

Hisanori Irie, Takashi Tomura, Jiro Hirokawa

IEICE TRANSACTIONS ON COMMUNICATIONS   E102B ( 1 )   137 - 146   2019.1

A 20-GHz-Band $64\times64$ Hollow Waveguide Two-Dimensional Butler Matrix Reviewed

Takashi Tomura, Dong-Hun Kim, Masahiro Wakasa, Yuki Sunaguchi, Jiro Hirokawa, Kentaro Nishimori

IEEE Access   7   164080 - 164088   2019

Analysis and Design of a Wideband Endfire Circularly Polarized Septum Antenna Reviewed International coauthorship

Xiaohe Cheng, Yuan Yao, Jiro Hirokawa, Takashi Tomura, Tao Yu, Junsheng Yu, Xiaodong Chen

IEEE Transactions on Antennas and Propagation   66 ( 11 )   5783 - 5793   2018.11

Photonics-Based Millimeter-Wave Band Remote Beamforming of Array-Antenna Integrated With Photodiode Using Variable Optical Delay Line and Attenuator Reviewed

Tatsuya Nagayama, Shigeyuki Akiba, Takashi Tomura, Jiro Hirokawa

Journal of Lightwave Technology   36 ( 19 )   4416 - 4422   2018.10

Millimeter-Wave Frequency Beam Scanning Array With a Phase Shifter Based on Substrate-Integrated-Waveguide Reviewed International coauthorship

Xiaohe Cheng, Yuan Yao, Takashi Tomura, Jiro Hirokawa, Tao Yu, Junsheng Yu, Xiaodong Chen

IEEE Access   6   47408 - 47414   2018

A Compact Multi-Beam End-Fire Circularly Polarized Septum Antenna Array for Millimeter-Wave Applications Reviewed International coauthorship

Xiaohe Cheng, Yuan Yao, Takashi Tomura, Jiro Hirokawa, Tao Yu, Junsheng Yu, Xiaodong Chen

IEEE Access   6   62784 - 62792   2018

Simultaneous Optimal Design Method of Primary Radiator and Main Reflector for Shaped Beam Antennas Reviewed

Takashi Tomura

IEICE Transactions on Communications   100 ( 2 )   211 - 218   2017

A 45$^{\circ}$ Linearly Polarized Hollow-Waveguide 16$\,\times$16-Slot Array Antenna Covering 71–86 GHz Band Reviewed

Takashi Tomura, Jiro Hirokawa, Takuichi Hirano, Makoto Ando

IEEE Transactions on Antennas and Propagation   62 ( 10 )   5061 - 5067   2014.10

A wideband 16 × 16-element corporate-feed hollow-waveguide slot array antenna in the 60-GHz band Reviewed

Takashi Tomura, Jiro Hirokawa, Takuichi Hirano, Makoto Ando

IEICE Transactions on Communications   E97-B ( 4 )   798 - 806   2014

A 45$^\circ$ Linearly Polarized Hollow-Waveguide Corporate-Feed Slot Array Antenna in the 60-GHz Band Reviewed

Takashi Tomura, Yohei Miura, Miao Zhang, Jiro Hirokawa, Makoto Ando

IEEE Transactions on Antennas and Propagation   60 ( 8 )   3640 - 3646   2012.8

Development of Ka-Band Phased-Array Transceiver for Small Satellite

白根篤史, 戸村崇, 岡田健一, 須藤順平, 桧垣誠, 白倉政志, 新田真也, 川口菜穂香, 井上聡一郎, 永島隆

宇宙科学技術連合講演会講演集(CD-ROM)   67th   2023

Development status of high-capacity Ka-band communication system for small satellite constellations

須藤順平, 桧垣誠, 白倉政志, 井上聡一郎, 岡田健一, 白根篤史, 戸村崇

宇宙科学技術連合講演会講演集(CD-ROM)   67th   2023

Space Demonstration CubeSat OrigamiSat-2 for High Gain Deployable Reflectarray Antenna Technology with Origami Structure

坂本啓, 戸村崇, 森谷元喜, DELBURG Mitchao, 竹田有希, 永井和希, 金丸宙, 中山弦, 押野太一, 佐藤匠, 三本喜貴, 濟藤颯真, 黒川晴希, 木谷洸一, 豊田晃大, SUK So Yeon, 安原光彦, 越智淳伎, 粂颯太, 白根篤史, 岡田健一

宇宙科学技術連合講演会講演集(CD-ROM)   67th   2023

自発的な水害対策を可能にする地球観測超小型衛星群の研究(継続)

戸村崇, 白根篤史, 坂本啓, 瀬戸里枝, 大橋匠

電気通信普及財団研究調査助成報告書(Web)   ( 38 )   2023

Measurement Results of a 26-GHz-band Wide-angle Beam-Scanning Dipole-Loaded Patch Array Antenna

戸村崇, 和田武尚, 白根篤史, 岡田健一, 須藤順平, 桧垣誠, 井上聡一郎, 永島隆

電子情報通信学会技術研究報告(Web)   122 ( 441(AP2022 234-251) )   2023

自発的な水害対策を可能にする地球観測超小型衛星群の研究

戸村崇, 白根篤史, 坂本啓, 瀬戸里枝, 大橋匠

電気通信普及財団研究調査助成報告書(Web)   ( 37 )   2022

Deployable Slot Array CFRP Antenna for Small SAR Satellite

齋藤宏文, 齋藤宏文, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)   2022   2022

Bandwidth enhancement by optimizing the cross-sectional shape of the coupling region in a waveguide 2-plane hybrid

Jiro Hirokawa, Shihao Chen, Takashi Tomura

2021 International Conference on Electromagnetics in Advanced Applications, ICEAA 2021   151   2021.8

Near-field aperture distribution measurement of 8×2-element 60-GHz-band circularly polarized post-wall waveguide dipole loaded slot arrays

Takashi Tomura, Jiro Hirokawa

2020 International Symposium on Antennas and Propagation, ISAP 2020   249 - 250   2021.1

Phase adjustment algorithm for deformation compensation of nonflat reflectarray antenna

Masaki Kato, Hiraku Sakamoto, Takashi Tomura, Masaaki Okuma

2020 International Symposium on Antennas and Propagation, ISAP 2020   495 - 496   2021.1

Flight Model 7-Panel Slot-Array Deployable Antenna Measurement Results of MicroX-SAR 100kg Class Demonstration Satellite

Budhaditya Pyne, Hirobumi Saito, Prilando Rizki Akbar, Koji Tanaka, Jiro Hirokawa, Takashi Tomura

2020 50th European Microwave Conference, EuMC 2020   816 - 819   2021.1

Analysis and design of corporate-feed waveguide slot array antennas by hybrid method of moments and finite element methods

Takashi Tomura, Jiro Hirokawa

2020 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization, NEMO 2020   2020.12

All-Dielectric Huygens' Metasurface Pair for mm-Wave Circularly-Polarized Beam-Forming

Mohamed K. Emara, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

14th European Conference on Antennas and Propagation, EuCAP 2020   2020.3

Radial Line Slot Array Antenna for 5.8-GHz-Band Beam-Type Wireless Power Transmission

Takashi Tomura, Jiro Hirokawa, Minoru Furukawa, Teruo Fujiwara

14th European Conference on Antennas and Propagation, EuCAP 2020   2020.3

Two-dimensional polarity orthogonal multiplexing antenna system for non-far region communication

Jiro Hirokawa, Takashi Tomura

2020 International Workshop on Antenna Technology, iWAT 2020   2020.2

Electrically large circular polarized waveguide slot array antennas for 60-GHz-band GATE system

Takashi Tomura, Jiro Hirokawa

2019 Photonics and Electromagnetics Research Symposium - Fall, PIERS - Fall 2019 - Proceedings   2053 - 2057   2019.12

Analysis of Coupling Slots with a Reflection-canceling Wall for Parallel Plate Slot Array Antenna

Tianyu Wang, Takashi Tomura, Jiro Hirokawa

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

Design of a Beam Switching Circuit for Rectangular-coordinate Orthogonal 4-Multiplexing in the Non-far Region with Two-dimensional 180-degree Hybrid

Kentaro Wada, Takashi Tomura, Jiro Hirokawa

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

Control of Radiation Direction in an Aperture Array excited by a Waveguide 2-plane Hybrid Coupler

Yuki Sunaguchi, Takashi Tomura, Jiro Hirokawa

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

Aperture Distribution of RLSA for 5.8-GHz band Wireless Power Transmission

Takashi Tomura, Jiro Hirokawa, Minoru Furukawa, Teruo Fujiwara

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

Modal Analysis for Gap Waveguide Considering Structural Periodicity in Propagation Direction

Keisuke Ejiri, Takashi Tomura, Jiro Hirokawa

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

Wideband Design of a 350GHz-band Corporate-feed Waveguide Slot Array Antenna using Gold-coating Silicon Wafers with Different Thickness

Wataru Kuramoto, Takashi Tomura, Jiro Hirokawa, Adrian Gomez, Joachim Oberhammer

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

Analysis of 2 × 2 Radiating Slots with Parallel-Plate Perpendicular-Corporate Feed Based on Method of Moments

Shuang Ji, Takashi Tomura, Jiro Hirokawa

2019 International Symposium on Antennas and Propagation, ISAP 2019 - Proceedings   2019.10

A 64x64-way Two-dimensional Beam-switching Butler Matrix for Multi-beam Massive MIMO

Jiro Hirokawa, Takashi Tomura, Kentaro Nishimori, Takefumi Hiraguri

IEEE International Symposium on Phased Array Systems and Technology   2019-   2019.10

Reflection-cancelling dielectric huygens' metasurface pair for wideband millimeter-wave beam-forming

Mohamed K. Emara, Takashi Tomura, Jiro Hirokawa, Shulabh Gupta

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings   433 - 434   2019.7

Millimeter Wave Antenna for Information Shower: Design Choices and Performance

Sergio Barberis, Daniele Disco, Roberto Vallauri, Takashi Tomura, Jiro Hirokawa

2019 European Conference on Networks and Communications, EuCNC 2019   128 - 132   2019.6

Millimeter-wave Huygens' Metasurfaces based on All-dielectric Resonators for Antenna Beam-forming

Shulabh Gupta, Takashi Tomura, Soichi Sakurai, Daniel J. King, Jiro Hirokawa

13th European Conference on Antennas and Propagation, EuCAP 2019   2019.3

Design of Feed and Radiation Elements for 22-Element Waveguide Slot Arrays by Filter Design Theory

Takashi Tomura, Jiro Hirokawa

ISAP 2018 - 2018 International Symposium on Antennas and Propagation   2019.1

Design of a Dual-polarized Slot Array Antenna with Monopulse Corporate-feed Waveguides for Two-dimensional Orthogonal 8-multiplexing in the Non-far Region

Kentaro Wada, Ryotaro Ohashi, Takashi Tomura, Jiro Hirokawa

ISAP 2018 - 2018 International Symposium on Antennas and Propagation   2019.1

Design of an 112x64-element Corporate-feed Hollow-waveguide Slot Array Antenna

Shuki Wai, Takashi Tomura, Jiro Hirokawa

ISAP 2018 - 2018 International Symposium on Antennas and Propagation   2019.1

Design of 2×2-Element for a Perpendicular-Corporate Feed Four-layer Parallel-Plate Pair-Slot Array Antenna

Hisanori Irie, Takashi Tomura, Jiro Hirokawa

ISAP 2018 - 2018 International Symposium on Antennas and Propagation   2019.1

Reflection Suppression in the Short-slot 2-plane Coupler by Step Structure

Yuki Sunaguchi, Masahiro Wakasa, Takashi Tomura, Jiro Hirokawa

ISAP 2018 - 2018 International Symposium on Antennas and Propagation   2019.1

Progress of plate-laminated waveguide slot array antennas by diffusion bonding in 60GHz, 120GHz and 350GHz bands

Jiro Hirokawa, Takashi Tomura, Akihiko Hirata, Tadao Nagatsuma

Asia-Pacific Microwave Conference Proceedings, APMC   2018-   426 - 428   2019.1

Measurements of a 64x64-Way One-Body Two-Dimensional Beam-Switching Hollow-Waveguide Butler Matrix

Jiro Hirokawa, Dong-Hun Kim, Masahiro Wakasa, Yuki Sunaguchi, Takashi Tomura, Kentaro Nishimori

2018 48th European Microwave Conference, EuMC 2018   125 - 128   2018.11

Design of a 60GHz-Band Metal Cap Antenna with Two Slots Fed by the Post-Wall Waveguide

Jiro Hirokawa, Takashi Tomura

2018 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2018   2018.11

Recent progress of rectangular-coordinate orthogonal multiplexing antenna system for non-far region communication

Jiro Hirokawa, Takashi Tomura, Ryotaro Ohashi, Kentaro Wada

2018 IEEE Conference on Antenna Measurements and Applications, CAMA 2018   2018.11

Radiation of a Semi-rigid Cable Monopole Antenna Inserting into a 60GHz-band Oscillator Chip

Yuta Saito, Takashi Tomura, Jiro Hirokawa, Kenichi Okada

ISAP 2018 - 2018 International Symposium on Antennas and Propagation   2018.7

Reflection bandwidth enhancement of a 2×2-element wide slot sub-array on a wall-inserted cavity

Takashi Tomura, Jiro Hirokawa, Takuichi Hirano, Makoto Ando

2013 International Symposium on Electromagnetic Theory, EMTS 2013 - Proceedings   608 - 610   2013

Wideband design of a 2×2-slot sub-array in a double-layer corporate-feed waveguide antenna

Jiro Hirokawa, Takashi Tomura, Takuichi Hirano, Makoto Ando

2013 7th European Conference on Antennas and Propagation, EuCAP 2013   2873 - 2874   2013

Analysis of an X-shaped Cavity-backed Slot 2x2-element Sub-array by Hybrid MoM/FEM with Numerical Eigenmode Basis Functions Reviewed

Takashi Tomura, Jiro Hirokawa, Takuichi Hirano, Makoto Ando

2012 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI)   2012

Measurements of a 64x64-way One-body Two-dimensional Beam-switching Hollow-waveguide Butler Matrix

Jiro Hirokawa, Dong-Hun Kim, Masahiro Wakasa, Yuki Sunaguchi, Takashi Tomura, Kentaro Nishimori

2018 48TH EUROPEAN MICROWAVE CONFERENCE (EUMC)  2018  IEEE

Design of a Perpendicular-corporate Feed in a Four-layer Parallel-plate 45-degree Polarization Slot Array Antenna

入江寿憲, 戸村崇, 広川二郎

電子情報通信学会技術研究報告  2018 

Reflection Suppression in the Short-slot 2-plane Coupler by Step Structure

Yuki Sunaguchi, Masahiro Wakasa, Takashi Tomura, Jiro Hirokawa

2018 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP)  2018  IEEE

Design of a 2x2-Element for a Perpendicular-Corporate Feed Four-layer Parallel-Plate Pair-Slot Array Antenna

Hisanori Irie, Takashi Tomura, Jiro Hirokawa

2018 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP)  2018  IEEE

Recent Progress of Rectangular-Coordinate Orthogonal Multiplexing Antenna System for Non-Far Region Communication

Jiro Hirokawa, Takashi Tomura, Ryotaro Ohashi, Kentaro Wada

2018 IEEE CONFERENCE ON ANTENNA MEASUREMENTS & APPLICATIONS (CAMA)  2018  IEEE

Progress of Plate-laminated Waveguide Slot Array Antennas by Diffusion Bonding in 60GHz, 120GHz and 350GHz Bands

Jiro Hirokawa, Takashi Tomura, Akihiko Hirata, Tadao Nagatsurna

2018 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS (APMC)  2018  IEEE

Design of Undesired-resonance Exclusion of a Degeneration-separated Hexagonal-cross-section Waveguide Circularly Polarized Aperture Antenna

和井秀樹, 戸村崇, 広川二郎

電子情報通信学会技術研究報告  2018 

Design of H-plane Sidelobe Suppression using a Slit Layer in a Corporate-feed Waveguide Slot Array Antenna consisting of 2×2-element Radiating Units

荒川遥香, 入江寿憲, 戸村崇, 広川二郎

電子情報通信学会技術研究報告  2018 

ショートスロット2面結合ハイブリッド用の放射方向制御板の設計

砂口裕希, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

モードマッチング有限要素法ハイブリッド解析を用いた76GHz帯におけるギャップ導波路の分散特性の解析

江尻敬祐, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

Radiation Characteristics of a Semi-rigid Cable Monopole Antenna Inserted into a 60GHz-band Oscillator Chip

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  2018 

60GHz帯発振回路チップに接続された厚膜誘電体上円偏波パッチアンテナの放射特性

齊藤雄太, 戸村崇, 広川二郎, 岡田健一

電子情報通信学会大会講演論文集(CD-ROM)  2018 

LOS-MIMO伝送を利用したドローンMIMO中継局の伝搬環境制御

松村尚輝, 西森健太郎, 谷口諒太郎, 平栗健史, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

垂直方向並列給電3層平行平板偏波共用スロットアレーアンテナ用2×2素子の設計

入江寿憲, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

フィルタ設計理論による2×2素子導波管スロットアレーの給電構造広帯域設計

戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

2×2素子を放射単位とする並列給電導波管スロットアレーアンテナのスリット層装荷によるH面サイドローブ抑圧の検討

荒川遥香, 入江寿憲, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

縮退分離六角形断面導波管円偏波放射開口アンテナの不要共振除去

和井秀樹, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

19.55GHz帯64ビーム2次元ビーム切替一体化中空導波管バトラーマトリックスの試作

広川二郎, 戸村崇, 西森健太郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

Design of 2×2-Element Waveguide Slot Arrays by Filter Design Theory

戸村崇, 広川二郎

電子情報通信学会技術研究報告  2018 

ステップ構造によるショートスロットE面結合器の反射抑圧

砂口裕希, 若狭政啓, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

非遠方界2次元直交16多重伝送用モノパルス並列給電導波管スロットアレーアンテナの構成と設計

和田健太郎, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

半波長間隔スロットペア層を装荷した導波管スロットアレーアンテナによるE面エンドファイア方向放射抑圧の基礎検討

櫻井壮一, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2018 

Design of an 112x64-element Corporate-feed Hollow-waveguide Slot Array Antenna

Shuki Wai, Takashi Tomura, Jiro Hirokawa

2018 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP)  2018  IEEE

Design of a Perpendicular-Corporate Feed in a Four-Layered Parallel-Plate Circularly-Polarized Slot Array Antenna

2017.10 

Design of the Excitation Coefficients of Monopulse Waveguide Slot Array Antenna with Corporate-feed in Rectangular-coordinate Orthogonal Multiplexing Transmission

2017.9 

Mode Matching/FEM Hybrid Analysis for a Short-slot 2-plane Coupler considering the Three-dimensional Structural Symmetry

2017.9 

Suppression of E-plane Sidelobes using a Slit Layer in a Corporate-feed Waveguide Slot Array Antenna consisting of 2×2-element Radiating Units

2017.7 

Feasibility of a 60GHz-band Semi-rigid Cable Monopole Antenna for Inserting into an Oscillator Chip

2017.7 

Measurement evaluation of a two-slot array antenna fed by a post-wall waveguide in the 60-GHz band for mobile terminals

2017.6 

垂直方向並列給電4層平行平板スロットアレーアンテナ用円偏波2×2素子の設計

入江寿憲, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2017 

Design of a Partial-corporate-feed Circuit of a Waveguide Reflection-canceling Slot Low-sidelobe Array Antenna in the 60GHz Band

Mikihiro Aruga, Takashi Tomura, Jiro Hirokawa

2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017)  2017  IEEE

1.3μm帯光源と可変光遅延器を用いたRadio-over-Fiberによる40GHz帯アンテナビーム制御

長山竜也, 秋葉重幸, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2017 

並列給電導波管スロットアレーアンテナの分配数自由化のための給電回路設計

和井秀樹, 戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2017 

フィルタ設計理論による導波管スロットアレーアンテナ設計の一検討

戸村崇, 広川二郎

電子情報通信学会大会講演論文集(CD-ROM)  2017 

Feasibility on Multiplexing Antenna System based on Rectangular-coordinate Orthogonality by using Two-dimensional 180-degree Hybrid

Ryotaro Ohashi, Takashi Tomura, Jiro Hirokawa

2017 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP 2017)  2017  IEEE

B-1-52 Fabrication of Plate-laminated Waveguide Antennas for 350GHz band by Silicon Process

Hirokawa J., Tomura T., Minamikata Y., Nagatsuma T., Seto H., Inoue Y., Kato K., Saito M.

Proceedings of the Society Conference of IEICE  2014.9  The Institute of Electronics, Information and Communication Engineers

B-1-92 MoM Analysis using Numerical Eigenmode Basis Functions for Hexagon Radiating Aperture 2×2-element Array with Circularly Polarization

YAMAMOTO Tatsuya, TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

Proceedings of the IEICE General Conference  2014.3  The Institute of Electronics, Information and Communication Engineers

Plate-laminated Waveguide Slot Array Antennas for Wideband and High-gain Operations

Jiro Hirokawa, Takashi Tomura, Miao Zhang, Makoto Ando

2014 XXXITH URSI GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM (URSI GASS)  2014  IEEE

Wideband Design of a 45-degree Linearly-polarized Plate-laminated Waveguide Slot Array Antenna

TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

IEICE technical report. Antennas and propagation  2013.11  The Institute of Electronics, Information and Communication Engineers

MoM Analysis using Numerical Eigenmode Basis Functions for a Wall-inserted Cavity-backed 2×2-element Slot Array with 45-deg. Linearly Polarization

TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

Proceedings of the Society Conference of IEICE  2013.9  The Institute of Electronics, Information and Communication Engineers

12×6-element Double-layer Corporate-feed Waveguide Slot Array Antenna

ITOU Satoshi, TOMURA Takashi, ZHANG Miao, HIROKAWA Jiro, Ando Makoto

IEICE technical report. Antennas and propagation  2013.5  The Institute of Electronics, Information and Communication Engineers

B-1-73 A Wideband 16×16-element Plate-laminated-waveguide Slot Array in the 60-GHz Band

TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

Proceedings of the IEICE General Conference  2013.3  The Institute of Electronics, Information and Communication Engineers

Wideband Design of a 2x2-slot Sub-array in a Double-layer Corporate-feed Waveguide Antenna

Jiro Hirokawa, Takashi Tomura, Takuichi Hirano, Makoto Ando

2013 7TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP)  2013  IEEE

A 16x16-element Plate-laminated-waveguide Slot Array with 19.2% Bandwidth in the 60-GHz Band

Takashi Tomura, Jiro Hirokawa, Takuichi Hirano, Makoto Ando

2013 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM (APSURSI)  2013  IEEE

Reflection Bandwidth Enhancement of a 2x2-element Wide Slot Sub-array on a Wall-inserted Cavity

Takashi Tomura, Jiro Hirokawa, Takuichi Hirano, Makoto Ando

PROCEEDINGS OF 2013 URSI INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC THEORY (EMTS)  2013  IEEE

B-1-116 Wideband Design of 2×2-element Wide Slot Sub-array on a Wall-inserted Cavity

TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

Proceedings of the Society Conference of IEICE  2012.8  The Institute of Electronics, Information and Communication Engineers

MoM Analysis and Wideband Design of 2×2-element Wide Slog Sub-array on a Wall-inserted Cavity

TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

IEICE technical report. Antennas and propagation  2012.7  The Institute of Electronics, Information and Communication Engineers

B-1-73 Size Reduction of Monopulse-feed Circuit for 94GHz Stereolithography Hollow-waveguide Wide Slot Array

Hirose Teppei, Tomura Takashi, Zhang Miao, Hirokawa Jiro, Ando Makoto

Proceedings of the IEICE General Conference  2012.3  The Institute of Electronics, Information and Communication Engineers

B-1-167 Analysis of X-shaped Cavity-backed Slot 2×2-element Sub-array by MoM/FEM Hybrid Method with Numerical Eigenmode Basis Function

TOMURA Takashi, HIROKAWA Jiro, HIRANO Takuichi, ANDO Makoto

Proceedings of the IEICE General Conference  2012.3  The Institute of Electronics, Information and Communication Engineers

B-1-147 Height Reduction of the Radiating Element for a 45-degree Linearly-polarized Corporate-feed Plate-laminated-waveguide Slot Array Antenna

TOMURA Takashi, MIURA Yohei, ZHANG Miao, HIROKAWA Jiro, ANDO Makoto

Proceedings of the Society Conference of IEICE  2011.8  The Institute of Electronics, Information and Communication Engineers

B-1-71 Plate-laminated-waveguide Corporate-feed 45-degree Linearly-polarized Aperture Array Antenna in 60 GHz-Band

TOMURA Takashi, MIURA Yohei, ZHANG Miao, HIROKAWA Jiro, ANDO Makoto

Proceedings of the IEICE General Conference  2011.2  The Institute of Electronics, Information and Communication Engineers

Plate-laminated-waveguide Corporate-feed 45-degree Linearly-polarized Aperture Array Antenna in the 60 GHz-Band

Takashi Tomura, Miao Zhang, Jiro Hirokawa, Makoto Ando

2011 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (APSURSI)  2011  IEEE

Polarization Realization in Waveguide Slot Array Antennas with a Full-corporate Feed Circuit on the Bottom Layer

HIROKAWA Jiro, ZHANG Miao, MIURA Yohei, TOMURA Takashi, ANDO Makoto

IEICE technical report  2010.9  The Institute of Electronics, Information and Communication Engineers

B-1-95 Design of a 4-element Sub-array of 45-degree Linearly-polarized Hollow-waveguide Slots with Full-corporate Feed

TOMURA Takashi, MIURA Yohei, ZHANG Miao, HIROKAWA Jiro, ANDO Makoto

Proceedings of the Society Conference of IEICE  2010.8  The Institute of Electronics, Information and Communication Engineers

Design of a 45-degree Linearly-polarized Hollow-waveguide Slot Two-dimensional Array Antenna with a Full-corporate-feed Circuit in the Lower Layer

TOMURA Takashi, MIURA Yohei, ZHANG Miao, HIROKAWA Jiro, ANDO Makoto

IEICE technical report  2010.7  The Institute of Electronics, Information and Communication Engineers

C-2-87 Transmission of 94GHz-band Hollow Waveguides of Laser-Curing Resin with Copper-Electroplating on the Internal Walls

Tomura Takashi, Zhang Miao, Hirokawa Jiro, Ando Makoto

Proceedings of the IEICE General Conference  2009.3  The Institute of Electronics, Information and Communication Engineers

B-1-166 94GHz-band Fabrication of a Hollow Waveguide of Laser-Curing Resin with Copper-Electroplating on the Internal Walls

Hirokawa Jiro, Zhang Miao, Tomura Takashi, Ando Makoto

Proceedings of the Society Conference of IEICE  2008  The Institute of Electronics, Information and Communication Engineers

十字交差方向性結合器、及びアンテナ用電力分配装置

戸村崇, 廣川二郎, 加賀谷 修 , 山中 大輔

近傍界伝送装置

戸村 崇, 加賀谷 修, 山中 大輔

アンテナ装置

戸村 崇, 廣川 二郎, 加賀谷 修, 山中 大輔

アンテナデバイス

廣川二郎, 戸村崇, 李 政彦, 高畑 利彦, 城崎 俊文

アンテナデバイス

廣川二郎, 戸村崇, 李 政彦, 城崎 俊文, 嘉藤 貴博, 高畑 利彦

スロットアレイアンテナ及びその製造方法

戸村崇, 北井 佑季 , 林 琳 , 寒川 潮

無線通信装置

戸村崇, 廣川二郎, 猪又 稔, 山田 渉

到来方向推定装置及び到来方向推定方法

廣川二郎, 戸村崇, 髙橋 雄太 , 白戸 裕史 , 北 直樹 , 内田 大誠 , 新井 拓人, 山本 泰義

無線通信方法

廣川二郎, 戸村崇, 伊藤 耕大, 菅 瑞紀, 新井 拓人, 白戸 裕史, 北 直樹

フェーズドアレイアンテナ

白根篤史, 岡田健一, 戸村崇

共振器特性測定方法

戸村崇, 廣川二郎, 山中 大輔, 木寺 信隆, 加賀谷 修

レクテナ装置

戸村崇, 廣川二郎, 藤原 暉雄, 古川 実

リフレクトアレーアンテナ

塩出 剛士, 牧野 滋, 稲沢 良夫, 瀧川 道生, 戸村 崇, 中嶋 宏昌

反射鏡アンテナ装置

瀧川道生, 山本伸一, 戸村崇, 稲沢良夫

アンテナ装置

戸村 崇, 瀧川道生, 稲沢良夫

アンテナ装置

戸村 崇, 瀧川道生, 稲沢良夫

リフレクトアレーアンテナ

塩出剛士, 牧野滋, 稲沢良夫, 瀧川道生, 戸村崇

リフレクトアレーアンテナ

塩出剛士, 牧野滋, 稲沢良夫, 瀧川道生, 戸村崇

アンテナ装置およびアレーアンテナ装置

戸村崇

Top 200 Reviewers

2023.7   IEEE Transactions on Antennas and Propagation  

Young Engineer Award

2022.12   IEEE MTT-S Japan  

工学院若手奨励賞

2022.10   東京工業大学 工学院  

Top 200 Reviewers

2022.7   IEEE Transactions on Antennas and Propagation  

活動功労賞

2021.9   電子情報通信学会 通信ソサイエティ  

Top 200 Reviewers

2021.7   IEEE Transactions on Antennas and Propagation  

電子情報通信学会 通信ソサイエティ

2020.9   活動功労賞  

若手奨励賞

2018.12   電子情報通信学会 アンテナ・伝播研究会  

学術奨励賞

2017.3   電子情報通信学会  

開発本部長表彰

2016.6   三菱電機株式会社  

Young Engineer Award

2015.12   IEEE AP-S Japan  

Best Poster Award

2013.2   IEEE EDS WIMNACT-37  

第14回 ベスト・スチューデント・アワード

2012.11   エリクソン・ジャパン  

Best Paper Award

2011.9   IEEE MTT-S Int. Microw. Workshop Series Millimeter Wave Integration Tech. (IMWS)   Plate-laminated-waveguide corporate-feed slot array antennas with a polarization conversion layer

Honorable Mention on Student Paper Contest

2011.7   IEEE Int. Symp. Antennas Propag. (AP-S) 2011  

東京支部学生会奨励賞

2008.5   電子情報通信学会  

小型衛星搭載用織物膜展開リフレクトアレーアンテナの研究開発

2023.4 - 2024.3

総務省  戦略的情報通信研究開発推進事業 社会展開指向型研究開発 フェーズI 

テラヘルツ波による超大容量無線LAN伝送技術の研究開発：MIMO対応多素子アンテナモジュールに関する研究開発

2022.9 - 2026.3

総務省  電波資源拡大のための研究開発 

自発的な水害対策を可能にする地球観測超小型衛星群の研究(継続)

2022.4 - 2023.3

電気通信普及財団  研究調査助成 

次世代LEO通信コンステレーション構築に向けた超小型・低コスト電波・光ハイブリッド通信システムおよび通信制御システムの研究開発

2021.11 - 2025.3

国立研究開発法人情報通信研究機構（NICT）  受託研究 

Ka帯ビームフォーミング技術による超小型衛星通信の高速・高機能化

2021.10 - 2025.3

国立研究開発法人科学技術振興機構（JST）  受託研究 

小型衛星搭載合成開口レーダーのサブメートル級高分解能化についての研究

2021.4 - 2023.3

総務省  戦略的情報通信研究開発推進事業 社会展開指向型研究開発 フェーズII 

自発的な水害対策を可能にする地球観測超小型衛星群の研究

2021.4 - 2022.3

電気通信普及財団  研究調査助成 

光ファイバ無線による直角座標系空間多重無線通信の実証

2020.7 - 2021.6

村田学術振興財団  研究助成 

Flexible Phased Array for Directional Wireless Communication

Grant number：20H00236  2020.4 - 2024.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

Research on in-space demonstration of ultra-lightweight deployable Origami array antenna

Grant number：20H00281  2020.4 - 2024.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

Research on in-space demonstration of ultra-lightweight deployable Origami array antenna

Grant number：20H00281  2020.4 - 2024.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (A)  Grant-in-Aid for Scientific Research (A)

超高利得・小型収納・大型展開可能なリフレクトアレーアンテナシステムの創出

Grant number：20H02146  2020.4 - 2023.3

日本学術振興会  科学研究費助成事業 基盤研究(B)  基盤研究(B)

戸村 崇

小型衛星搭載合成開口レーダーのサブメートル級高分解能化についての研究

2020.4 - 2021.3

総務省  戦略的情報通信研究開発推進事業 社会展開指向型研究開発 フェーズI 

フレキシブル基板と折り紙技術による小型収納・大型展開・軽量・高利得アンテナの研究

2020.4 - 2021.3

電子回路基板技術振興財団  調査・研究への助成 

1対1固定無線通信用ミリ波帯空間多重伝送通信の理論的検討と実証

2019.10 - 2021.3

住友電工グループ社会貢献基金  学術・研究助成 

超小型マルチビームアンテナと無人飛行機による伝搬環境制御技術の研究開発

2019.4 - 2021.3

総務省  戦略的情報通信研究開発推進事業 電波有効利用促進型研究開発（先進的電波有効利用型フェーズII） 

超高速低干渉ミリ波帯無線通信に向けたビーム制御板の研究

2019.4 - 2021.3

みずほ学術振興財団  第６２回工学研究助成 

織物膜を用いた宇宙展開式リフレクトアレーアンテナの概念設計と試作

2019.4 - 2020.3

電気通信普及財団  研究調査助成 

超高速低干渉ミリ波帯無線通信に向けたビーム制御板の研究

2019.4 - 2020.3

テレコム先端技術研究支援センター  SCAT研究費助成 

Research on low interference waveguide slot array antennas by frequency selective characteristics of radiation power

Grant number：18K13754  2018.4 - 2020.3

Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Early-Career Scientists

Takashi Tomura

オンデマンド即時観測が可能な小型合成開口レーダ衛星システム

2018.4 - 2019.3

国立研究開発法人科学技術振興機構（JST）  革新的研究開発推進プログラム ImPACT 

ミリ波アンテナの不要放射低減に関する研究

2018.4 - 2019.3

電気通信普及財団  研究調査助成 

超小型マルチビームアンテナと無人飛行機による伝搬環境制御技術の研究開発

2018.4 - 2019.3

総務省  略的情報通信研究開発推進事業, 電波有効利用促進型研究開発（先進的電波有効利用型フェーズI） 

第5世代セルラネットワークを実現するミリ波エッジクラウドの研究開発（5G MiEdge）

2017.4 - 2019.6

総務省  戦略的情報通信研究開発推進事業, 国際標準獲得型研究開発 

並列給電導波管スロットアレーアンテナの広帯域設計とミリ波帯での高効率実現

Grant number：13J07841  2013

日本学術振興会  科学研究費助成事業 特別研究員奨励費  特別研究員奨励費

戸村 崇

電子情報通信学会, 通信ソサイエティ，和文論文誌 B 特集号編集委員

Role(s)： Editer

和文論文誌 B 特集号「電波で未来社会を拓くアンテナ・伝搬及び関連システムの論文特集」  2022.9 - 2023.11

電子情報通信学会, 通信ソサイエティ，ComEX 2023AP 特集号編集委員

Role(s)： Editer

ComEX 2023AP 特集号「2022 年 ISAP に関連したアンテナ・伝搬 技術小特集」  2022.4 - 2023.6

電子情報通信学会, 通信ソサイエティ，和文論文誌 B 特集号，編集委員

Role(s)： Editer

和文論文誌 B 特集号「持続可能な社会を促し支えるアンテナ・伝搬 及び関連システム」  2021.9 - 2022.11

IEEE Transactions on Antennas and Propagation 査読委員

Role(s)： Peer review

2014.4