Hirokawa Jiro

Research keywords (2)： Antennas , アンテナ

Research theme for competitive and other funds (26)：

2022 - 2025 無人飛行機とMIMO伝送による5G/Wi-Fi6の新規通信エリア開拓
2021 - 2024 Study of 32-multiplexing transmission antenna system in the millimeter-wave band based on rectangular-coordinate two-dimensional polarity orthogonality
2021 - 2024 異種誘電体層の電磁結合によるテラヘルツ波透過性制御とシートLAN通信への応用
2017 - 2021 Research on functional dielectric layer integrated with waveguide slot array antenna and its application for proximity terahertz wireless communication
2017 - 2020 Study of plate-laminated diffusion-bonding waveguide-type highly functional planar antennas in milli-meter to terahertz bands

2017 - 2020 Research on analog beam scheduling with dual transmission using massive MIMO

2015 - 2018 第5世代移動通信ヘテロジニアスネットワーク用ミリ波高機能平面アンテナシステム

2014 - 2016 Study of 300GHz-band high-gain high-efficiency wide-band planar antennas using silicon process

2013 - 2016 Study of Functionality Enhancement of Millimeter-wave Antenna on a Thick Resin on a Silicon CMOS Chip

2012 - 2015 High efficiency on-chip antennas for millimeter-wave high speed wireless communications

2011 - 2012 High-gain,High-efficiency and Wide-band Planar Antennas usingPlate-laminated Hollow Waveguides in the 300GHz Band

2010 - 2012 Study of High-efficiency Millimeter-wave Antenna on a Thick Resin on a Silicon Chip and Development of the Measurement Systems

2005 - 2007 Study of s 40dBi gain waveguide-type planar antenna of simple structure with 90% efficiency at 100GHz

2003 - 2004 導波管スロットアレーアンテナの電磁界解析に関する研究

2003 - 2003 導波管スロットアレーアンテナの電磁界解析に関する研究

2001 - 2002 Single-layer waveguide power divider with chokes for dispensing with close electric contacts and its applications to planar antennas

2001 - 2002 一層構造導波管アレイアンテナのビーム走査のための位相器を節減した給電系の研究

2000 - 2001 Integration of Millimeter-Wave Post-Wall Waveguide-Fed Parallel Plate Slot Array with Planar RF Circuits

1999 - 2000 ミリ波帯ポスト壁導波管励振平行平板スロットアレーアンテナの研究

1998 - 2000 Study on Structure and Mass-Production of High-Efficiency Millimeter-Wave Slotted Waveguide Arrays

1997 - 1998 ミリ波帯高効率方形平行平板スロットアレーアンテナの研究

1996 - 1998 Study of Single-Layer Millimeter-Wave Waweguide Planar Antennas using Dominant Mode

1996 - 1997 導波管スロットアンテナ用一層構造偏波変換板の研究

1995 - 1997 Study of High-Efficiency Planar Array Antennas using TEM Waveguides

1996 - 1996 ミリ波帯漏れ波導波管クロススロットアレーアンテナの研究

1993 - 1993 車載用一層構造漏れ波導波管スロットアレーアンテナの研究

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Papers (391)：

Shihao Chen, Takashi Tomura, Jiro Hirokawa, Kota Ito, Mizuki Suga, Yushi Shirato, Daisei Uchida, Naoki Kita. Design for Operation in Two Frequency Bands by Division of the Coupled Region in a Waveguide 2-Plane Coupler. IEICE Transactions on Electronics. 2022. 12. 729-739
Jun Goto, Akimichi Hirota, Kyosuke Mochizuki, Satoshi Yamaguchi, Kazunari Kihira, Toru Takahashi, Hideo Sumiyoshi, Masataka Otsuka, Naofumi Yoneda, Jiro Hirokawa. Design of the Circularly Polarized Ring Microstrip Antenna with Shorting Pins. IEICE TRANSACTIONS ON COMMUNICATIONS. 2022. E105B. 1. 34-43
Takashi Tomura, Jiro Hirokawa, Muhsin Ali, Guillermo Carpintero. Millimeter-Wave Multiplexed Wideband Wireless Link Using Rectangular-Coordinate Orthogonal Multiplexing (ROM) Antennas. JOURNAL OF LIGHTWAVE TECHNOLOGY. 2021. 39. 24. 7821-7830
Miao Zhang, So Matsueda, Jiro Hirokawa, Makoto Ando. Realization of a Beam-Tilted Circularly Polarized Corporate-Fed Waveguide Slot Array in the 60 GHz Band. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. 2021. 69. 12. 8967-8972
Akihiko Hirata, Koichiro Itakura, Taiki Higashimoto, Yuta Uemura, Tadao Nagatsuma, Takashi Tomura, Jiro Hirokawa, Norihiko Sekine, Issei Watanabe, Akifumi Kasamatsu. Transmission Characteristics Control of 120 GHz-Band Bandstop Filter by Coupling Alignment-Free Lattice Pattern. IEICE TRANSACTIONS ON ELECTRONICS. 2021. E104C. 10. 587-595

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MISC (1,340)：

平田翔, 宇治川智, 松田崇弘, 広川二郎, 今井哲朗, 平栗健史. A Study of Handover Methods Considering Multipath Interference in a Mixed Network of Heterogeneous Base Stations. 電子情報通信学会技術研究報告(Web). 2024. 123. 368(CQ2023 52-69)
平田翔, 宇治川智, 松田崇弘, 広川二郎, 今井哲朗, 平栗健史. Study on drone handover methods suitable for multipath interference due to obstacles. 電子情報通信学会技術研究報告(Web). 2023. 123. 137(CS2023 18-58)
畑知華代, 田島裕也, 平栗健史, 松田崇弘, 今井哲朗, 広川二郎. A study of directional beam antenna with no-fed elements for drone relay networks. 映像情報メディア学会冬季大会講演予稿集(CD-ROM). 2022. 2022
石川裕太, 戸村崇, 広川二郎. Design of a Slot Array Antenna in Alternating-phase Feed Parallel-plate Waveguide. 電子情報通信学会大会講演論文集(CD-ROM). 2021. 2021
友利優希, WANG Tianyu, 広川二郎, 戸村崇. Design of a Circularly Polarized Slot Array Antenna on an Parallel-plate Waveguide in 26GHz band. 電子情報通信学会大会講演論文集(CD-ROM). 2021. 2021

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Patents (21)：

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Books (10)：

電磁波解析
デザインエッグ 2020 ISBN:9784815022303
電磁波工学
朝倉書店 2018 ISBN:9784254222142
スタンダード工学系の微分方程式
講談社 2014 ISBN:9784061565333
スタンダード工学系の複素解析
講談社 2014 ISBN:9784061565340
アンテナ・無線ハンドブック
オーム社 2006

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Education (3)：

- 1990 Tokyo Institute of Technology Graduate School, Division of Science and Engineering
- 1990 Tokyo Institute of Technology Science of Engineering
- 1988 Tokyo Institute of Technology School of Engineering

Professional career (2)：

Doctor of Engineering (Tokyo Institute of Technology)
Master of Engineering (Tokyo Institute of Technology)

Work history (8)：

2000 - 2008 :Tokyo Institute of Technology graduate School of Science and Engineering Associate Professor
2000 - 2008 :東京工業大学理工学研究科助教授
2008 - -:
2008 - -:東京工業大学理工学研究科准教授
1996 - 2000 :Tokyo Institute of Technology Faculty of Engineering Associate Professor

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Awards (7)：

2007 - 電子情報通信学会通信ソサイアティ論文賞
2006 - 電子情報通信学会通信ソサイアティ功労感謝状
2005 - 文部科学大臣表彰若手科学者賞
2003 - 東工大挑戦的研究賞
2003 - 電子情報通信学会通信ソサイアティ功労感謝状

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Association Membership(s) (2)：

IEEE , 電子情報通信学会

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