Journal Paper

• Yaxiang Wu, Takashi Tomura, Jiro Hirokawa, Miao Zhang. A Wideband Full-Metal Sidewall-Loaded Magnetoelectric Dipole Array Based on Combined Ridge and Groove Gap Waveguides in the Q-Band, IEEE Trans. Antennas Propag., vol. 71, no. 7, pp. 6156 - 6161, July 2023.
• Shuang Ji, Jiro Hirokawa, Takashi Tomura, Hirobumi Saito. X-band grating-loaded parallel-plate slot array antenna with low reflection, IEICE Commun. Express, Vol. 12, No. 6, pp. 277-281, June 2023.
• Yoshihiko AKAMINE, Takashi TOMURA, Jiro HIROKAWA. Single-Cut Scattered Field Transformation Applicable for Differences in the Radar Ranges of Transmitter and Receiver, IEEE Transactions on Antennas and Propagation, Vol. 71, No. 6, pp. 5310−5321, June 2023.
• Yuya Tajima, Takefumi Hiraguri, Takahiro Matsuda, Tetsuro Imai, Jiro Hirokawa, Hiroyuki Shimizu, Tomotaka Kimura, Kazuki Maruta. Analysis of Wind Effect on Drone Relay Communications, Drones, Mar. 2023.
• BAOQUAN DUAN, SHIJIU ZHENG, MIAO ZHANG, JIRO HIROKAWA, QING HUO LIU. A Broadband Full-Corporate-Fed Slot Array Antenna Based on the Single-Layer Substrate Integrated Waveguide, IEEE ACCESS, Vol. 11, pp. 20230-20239, Feb. 2023.
• Jiehuan Zhang, Xiaolian Mao, Miao Zhang, Jiro Hirokawa, Qing Huo Liu. Synthesis of Thinned Planar Arrays Based on Precoded Subarray Structures, IEEE Antennas Wirel. Propag. Lett., Vol. 22, No. 1, pp. 44-48, Jan. 2023.
• Yaxiang Wu, Jiro Hirokawa, Takashi Tomura. Gap Waveguide With Interleaved Pins for Higher-Frequency Fabrication, URSI RADIO SCIENCE LETTERS, Vol. 4, Jan. 2023.

Book

• JIRO HIROKAWA. 世界にない新しい構造の平面アンテナをつくる, 電波技術協会報, No. 351, pp. 18-21, Mar. 2023.

International Conference (Reviewed)

• Yaxiang Wu, Jiro Hirokawa, Takashi Tomura. Design of a Dual-Polarized Parallel-Plate Waveguide 2×2-Slot Subarray, IEEE AP-S URSI Intl. Symp.,, TH-UB.3P.4, July 2023.
• Huanqian Xiong, Jiro Hirokawa, Takashi Tomura. Design of a Center-fed Dual-polarized Parallel Plate Slot Array Antenna, IEEE AP-S URSI Intl. Symp., July 2023.
• Jiro Hirokawa, Renkai Zhao, Takashi Tomura. Feasibility of a quasi-isotropic radiation pattern by a millimeter-wave three-dimensional folded monopole antenna with proximity to a metal plate, IEEE AP-S URSI Intl. Symp., July 2023.
• Yoshihiko Akamine, Takashi Tomura, Jiro Hirokawa. Radar Cross-section Prediction from Cylindrically Scanned Near-Field Samples Applicable for Differences in the Radar Range of the Transmitter and Receiver, IEEE AP-S URSI Intl. Symp., July 2023.
• Ryosuke Hasaba, Kazuhiro Eguchi, Toshiyuki Wakisaka, Hiroshi Satoh, Jiro Hirokawa, Miyuki Hirose, Tohlu Matsushima, Yuki Fukumoto, Yuya Nishida, Kazuo Ishii. Experimental Study of Wavelet-OFDM Radio Communication System for AUVs Under Seawater, 17th European Conference on Antennas and Propagation, Mar. 2023.
• Jiro Hirokawa, Nelson Fonseca. Numerical Design of Two-Dimensional Switching Matrices with a Triangular Lattice of Beams,, Euro. Conf. Antennas Propag., Mar. 2023.

Domestic Conference (Not reviewed / Unknown)

• Yoshihiko Akamine, Takashi Tomura, Jiro Hirokawa. Scattered Field Transformation with Spherical Scan Applicable for Differences in the Radar Ranges of the Transmitter and Receiver, 信学技報, Nov. 2023.
• Yoshihiko Akamine, Takashi Tomura, JIRO HIROKAWA. Prediction of Bistatic Scattered Field under Plane Wave Incidence by Using Scattered Field Transformation in Planar Scanning, 信学ソ大, Sept. 2023.
• JIRO HIROKAWA, Qi Li, Shengjia Wu, Takashi Tomura, Nelson J. G. Fonseca. 任意のビーム数を有する1次元および2次元直交切替マトリックスの最近の進展, 信学技報, June 2023.
• Yoshihiko Akamine, Takashi Tomura, JIRO HIROKAWA. Near-Field Transformation with Cylindrical Scan for Radar Cross Section Measurements Applicable for Differences in the Radar Ranges of the Transmitter and Receiver, 信学技報, May 2023.
• Ryosuke Hasaba, 江口和弘, 脇坂俊幸, 佐藤浩, JIRO HIROKAWA, 廣瀬幸, 松嶋徹, 福本幸弘, 西田祐也, 石井和男. ループアンテナとWavelet-OFDM通信モジュールを用いたAUVへの海中無線通信に関する実験的検討, UWT, 信学技報, May 2023.
• Yoshihiko AKAMINE, Takashi TOMURA, Jiro Hirokawa. Near-Field to Far-Field Transformation with Cylindrical Scan for Radar Cross Section Measurements Applicable for Differences in the Radar Ranges of the Transmitter and Receiver, 信学技報, Mar. 2023.
• Yoshihiko AKAMINE, Takashi TOMURA, Jiro HIROKAWA. Monostatic to Bistatic Equivalence Theorem Applicable in the Region Closer than the Fresnel Region, 信学総大, Mar. 2023.
• Yuki Tomori, Takashi Tomura, JIRO HIROKAWA. Design of a Circularly Polarized Parallel-plate Slot Array Antenna with Corrugations, 信学総大, Mar. 2023.
• Shengjia Wu, Jiro Hirokawa, Takashi Tomura, Nelson J. G. Fonseca. Comparative Evaluation of Different Assignments for Post-wall 1-D Parallel Switching Matrices with Four Beams, 信学総大, Mar. 2023.
• Huanqian Xiong, Jiro Hirokawa, Takashi Tomura. Design of a Probe-fed Waveguide Feeder in a Dual-polarized Parallel Plate Slot Array Antenna, IEICE General Conference 2023, Mar. 2023.
• Yoshiki Mitsumoto, Takashi Tomura, JIRO HIROKAWA, 山中大輔, 木寺信隆, 加賀谷修. Design of waveguide stacked E-plane crossed directional couplers, National Convention on Electrical and Electronic Engineering, Mar. 2023.
• Rikako Yamaguchi, JIRO HIROKAWA, Takashi Tomura, Minoru Inomata, Wataru Yamada. 150GHz帯チャネルサウンダ用中空導波管スロットアレーアンテナの放射素子の設計, 電子情報通信学会 総合大会, Mar. 2023.
• Renkai Zhao, Jiro Hirokawa, Takashi Tomura. Feasibility of a Three-dimensional Radiation Pattern by a Horizontal-plane Orthogonal Two Monopole Array near a Metal Plate, 信学総大, Mar. 2023.
• Takashi Tomura, JIRO HIROKAWA. マルチモード直方体共振器による積層薄板導波管のミリ波帯異方性導電率測定, 信学技報, Mar. 2023.
• Yoshiki Hara, JIRO HIROKAWA, Takashi Tomura. 部分並列給電平行平板スロットサブアレーの設計, 信学総大, Mar. 2023.
• Kazuto Sasaki, JIRO HIROKAWA, Takashi Tomura. ミリ波自動車レーダ用導波管スロットサブアレーアンテナの設計, 信学総大, Mar. 2023.
• JIRO HIROKAWA. 非遠方界領域直角座標系2次元直交多重伝送アンテナシステム, MIKA, 信学技報, Feb. 2023.
• 畑知華代, 田島裕也, Takefumi Hiraguri, Takahiro Matsuda, Tetsuro Imai, JIRO HIROKAWA. ドローンによる映像中継伝送に適した無給電素子付きアンテナの評価, 映情メ学会放送技術研, Jan. 2023.
• Yoshihiko Akamine, Takashi Tomura, Jiro Hirokawa. Single-cut Bistatic Scattered Field Transformation by Using the Equivalence Theorem to the Monostatic Field, 信学技報, Jan. 2023.
• 田島裕也, Takefumi Hiraguri, Takahiro Matsuda, Tetsuro Imai, JIRO HIROKAWA. ドローンの中継通信に対する風の影響, 信学技報, Jan. 2023.

Patent

• JIRO HIROKAWA, Takashi Tomura. 無線通信方法. Patent. Published. 国立大学法人東京工業大学, 日本電信電話株式会社. 2021/07/13. 特願2021-115790. 2023/01/25. 特開2023-012257. 2023.
• Takashi Tomura, JIRO HIROKAWA. レクテナ装置. Patent. Registered. 国立大学法人東京工業大学, 株式会社翔エンジニアリング. 2019/09/25. 特願2019-174233. 2021/04/01. 特開2021-052515. 特許第7289437号. 2023/06/02 2023.
• JIRO HIROKAWA, Hirobumi Saito, Budhaditya Pyne. アンテナ装置. Patent. Registered. 国立大学法人東京工業大学, 国立研究開発法人宇宙航空研究開発機構. 2019/03/18. 特願2019-050433. 2020/09/24. 特開2020-155843. 特許第7283678号. 2023/05/22 2023.

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