@article{CTT100887825, author = {S. Chen and T. Tomura and J. Hirokawa and K. Itou and M. Suga and Y. Shirato and D. Uchida and N. Kita}, title = {Design for operation in two frequency bands by division of the coupled region in a waveguide 2-plane coupler}, journal = {IEICE Transactions on Electronics}, year = 2022, } @article{CTT100887823, author = {Yuki SUNAGUCHI and Takashi TOMURA and Jiro HIROKAWA}, title = {Control of Radiation Direction in an Aperture Array Excited by a Waveguide 2-Plane Hybrid Coupler}, journal = {IEICE TRANSACTIONS on Communications}, year = 2022, } @article{CTT100874877, author = {Tuchjuta Ruckkwaen and Takashi Tomura and Jiro Hirokawa}, title = {Short-Range Transmission Improvement by Dog-Bone Cross-Slot Feed in Radial Line Slot Antenna}, journal = {IEICE Commun. Express}, year = 2022, } @article{CTT100874876, author = {Shuang Ji and Jiro Hirokawa and Takashi Tomura}, title = {A Wideband and High-Gain All-Metallic Perpendicular-Corporate-Fed Multi-Layered Parallel-Plate Slot Array Antenna}, journal = {IEEE Access}, year = 2022, } @article{CTT100874875, author = {Shuang Ji and Takashi Tomura and Jiro Hirokawa}, title = {Fast Analysis and Bandwidth Enhancement of the Radiating Subarray by Method of Moments for a Parallel-Plate Slot Array Antenna with Perpendicular-Corporate Feed}, journal = {IEEE Trans. Antennas Propag.}, year = 2022, } @inproceedings{CTT100892768, author = {Hirobumi Saito and Kosei Ishimura and Takashi Tomura and JIRO HIROKAWA}, title = {小型合成レーダ用のCFRP製2次元スロットアレーアンテナの試作}, booktitle = {信学技報}, year = 2022, } @inproceedings{CTT100897139, author = {Kazuki Nagai and Hiraku Sakamoto and Takashi Tomura and Shinya Tamura and Yuki Takeda}, title = {超小型衛星に搭載する二層型宇宙膜面アレーアンテナの開発}, booktitle = {}, year = 2022, } @inproceedings{CTT100884389, author = {Takashi Tomura and Jiro Hirokawa and Daisuke Yamanaka and Osamu Kagaya and Nobutaka Kidera and Katsuaki Miyatani and Hisaaki Furukawa}, title = {Synthetic Fused Silica Glass Based Low Loss 60-GHz-Band H-Plane Substrate Integrated Waveguide Hybrid by Through Quartz Vias}, booktitle = {Proceedings of 2022 Asia-Pacific Microwave Conference}, year = 2022, } @inproceedings{CTT100895799, author = {井上 聡一郎 and Naoki Miyashita and 永島 隆 and 清原 耕輔 and 星 宏明 and 細沼 貴之 and 中須賀 真一 and 野村 俊一郎 and 平子 敬一 and Kenichi Okada and Atsushi Shirane and Takashi Tomura}, title = {小型衛星コンステレーション向け電波・光ハイブリッド通信技術の研究開発に関する開発状況}, booktitle = {}, year = 2022, } @inproceedings{CTT100897147, author = {Shinya Tamura and Kazuki Nagai and Takashi Tomura and Hiraku Sakamoto}, title = {アンテナ面とグラウンド面の二層を有する膜面アンテナの収納・展開}, booktitle = {}, year = 2022, } @inproceedings{CTT100891109, author = {Hiraku Sakamoto and Shuhei Koike and Motoki Moritani and Misato Ishiwata and Kazuki Nagai and Shinya Tamura and Takaomi Chubachi and Hiroki Nakanishi and Yuki Takeda and Gen Nakayama and Takashi Tomura and HIROSHI FURUYA and Yuya Shimoda and Akihito Watanabe}, title = {3UキューブサットOrigamiSat-1多機能展開膜の軌道上展張形状に関する考察}, booktitle = {}, year = 2022, } @inproceedings{CTT100896877, author = {Shiyogo Nerome and Kiyona Miyamoto and Toshihiro Chujo and Yoichi Yatsu and Takashi Tomura and 坂本 祐二 and Saburo Matunaga}, title = {S帯とGlobalstar衛星通信を用いた超小型衛星ひばりの通信系の開発と軌道上運用結果}, booktitle = {}, year = 2022, } @inproceedings{CTT100887812, author = {Qi Li and Jiro Hirokawa and Takashi Tomura}, title = {Design of a waveguide two-plane coupler with a different division ratio in horizontal and vertical directions}, booktitle = {}, year = 2022, } @inproceedings{CTT100887688, author = {Shengjia Wu and Jiro Hirokawa and Takashi Tomura and Nelson J. G. Fonseca}, title = {Assignment of Adjacent Output Phase Differences Per Input Port in One-dimensional Parallel Switching Matrices}, booktitle = {信学技報}, year = 2022, } @inproceedings{CTT100892767, author = {Masashi Fujishiro and JIRO HIROKAWA and Takashi Tomura}, title = {直角座標系二次元直交多重伝送における伝送容量増大のためのミリ波帯導波管スロットアレーアンテナの研究}, booktitle = {}, year = 2022, } @inproceedings{CTT100892766, author = {Rikako Yamaguchi and JIRO HIROKAWA and Takashi Tomura}, title = {150GHz帯円形配列中空導波管狭壁上スロットアレーアンテナの研究}, booktitle = {信学技報}, year = 2022, } @inproceedings{CTT100887819, author = {Yaxiang Wu and Jiro Hirokawa and Takashi Tomura}, title = {Groove Gap Waveguide with Interlaced Pins for Higher-Frequency Fabrication}, booktitle = {}, year = 2022, } @inproceedings{CTT100886901, author = {Yuto Katsura and Takashi Tomura and Jiro Hirokawa}, title = {方形領域に照射するポスト壁導波路スロットアレーアンテナ用給電回路の設計}, booktitle = {信学技報}, year = 2022, } @inproceedings{CTT100881439, author = {Masato Machida and Raisei Mizokuchi and Jun Yoneda and Takashi Tomura and T. Kodera}, title = {Mixed-mode RF reflectometry for reduction of crosstalk effects}, booktitle = {}, year = 2022, } @inproceedings{CTT100881918, author = {Yoshihiko Akamine and Takashi Tomura and JIRO HIROKAWA}, title = {Near Field to Far Field Transformation for Radar Cross Section Measurements by Using a Novel Weighting Factor for Cylindrical Scanning}, booktitle = {}, year = 2022, } @inproceedings{CTT100882198, author = {Yuki Takeda and Takashi Tomura and Hiraku Sakamoto}, title = {Reflection Phase Control by Varactor Diodes for Reflectarray Antennas on Flexible Substrate}, booktitle = {}, year = 2022, } @inproceedings{CTT100886712, author = {Riki Yanagisawa and Jiro Hirokawa and Takashi Tomura}, title = {Design of a 150GHz-Band Reflector Omnidirectional Antenna Using a Circular TE11-TM01 Mode Converter}, booktitle = {}, year = 2022, } @inproceedings{CTT100887014, author = {Tomori Yuki and Tomura Takashi and Hirokawa Jiro}, title = {Design of a Circularly Polarized Slot Pair on a Parallel-plate Waveguide with Corrugations}, booktitle = {}, year = 2022, } @inproceedings{CTT100887687, author = {Shengjia Wu and Jiro Hirokawa and Takashi Tomura and Nelson J. G. Fonseca}, title = {Comparative Evaluation of Different Assignments for 1-D Parallel Switching Matrices with Four Beams}, booktitle = {}, year = 2022, } @inproceedings{CTT100887820, author = {Rikako Yamaguchi and JIRO HIROKAWA and Takashi Tomura and Minoru Inomata and Wataru Yamada}, title = {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給電部設計}, booktitle = {}, year = 2022, } @inproceedings{CTT100887908, author = {Shohei Ogura and Takashi Tomura and Lin Lin}, title = {350GHz帯16×16素子ポスト壁導波路並列給電スロットアレーアンテナの設計}, booktitle = {}, year = 2022, } @inproceedings{CTT100892748, author = {Yaxiang Wu and Jiro Hirokawa and Takashi Tomura}, title = {Design Method of Gap Waveguide with Interlaced Pins for High-Frequency Fabrication}, booktitle = {}, year = 2022, } @inproceedings{CTT100892749, author = {Qi Li and Jiro Hirokawa and Takashi Tomura}, title = {Design Method of a Hollow-waveguide Two-plane Coupler with Unequal Division Ratio along with Horizontal and Vertical Direction}, booktitle = {}, year = 2022, } @inproceedings{CTT100892750, author = {Huanqian Xiong and Jiro Hirokawa and Takashi Tomura}, title = {Design of a 1D Slot Pair Radiating Subarray and a Centered Longitudinal Feeding Slot Waveguide Feeder for a Dual-polarized Parallel Plate Slot Array Antenna}, booktitle = {}, year = 2022, } @inproceedings{CTT100892778, author = {Yoshiki Hara and JIRO HIROKAWA and Takashi Tomura}, title = {部分並列給電平行平板スロットアレーアンテナの放射素子設計}, booktitle = {}, year = 2022, } @inproceedings{CTT100892780, author = {Qi Li and Jiro Hirokawa and Takashi Tomura}, title = {Design of a Hollow-waveguide Two-plane Coupler with Unequal Division Ratio along with Horizontal and Vertical Directions}, booktitle = {}, year = 2022, } @inproceedings{CTT100892782, author = {Huanqian Xiong and Jiro Hirokawa and Takashi Tomura}, title = {Design of a 1D Radiating Subarray in a Dual-polarized Parallel Plate Slot Array Antenna with Centered Longitudinal Feeding Slots}, booktitle = {}, year = 2022, } @inproceedings{CTT100892783, author = {Yaxiang Wu and Jiro Hirokawa and Takashi Tomura}, title = {Design of a Gap Waveguide with Interlaced Pins for Higher-Frequency Fabrication}, booktitle = {}, year = 2022, } @inproceedings{CTT100892784, author = {Masashi Fujishiro and JIRO HIROKAWA and Takashi Tomura}, title = {直角座標系二次元直交多重伝送におけるサブアレー間隔拡大による伝送容量増大の素子間隔,素子数依存性}, booktitle = {}, year = 2022, } @inproceedings{CTT100897154, author = {Kazuki Nagai and Hiraku Sakamoto and Shinya Tamura and Takashi Tomura and Yuki Takeda}, title = {二層型宇宙膜面アレーアンテナの展開形状評価}, booktitle = {}, year = 2022, } @inproceedings{CTT100902571, author = {Gen Nakayama and Takashi Tomura}, title = {Ka帯アイソフラックス指向性ラジアルラインスロットアンテナの設計}, booktitle = {}, year = 2022, } @inproceedings{CTT100902578, author = {Takashi Tomura and Hiraku Sakamoto and Yuki Takeda and Gen Nakayama and Toranosuke Yanagi and Motoki Moritani and Shuhei Koike and Yuki Takeda and Shinya Tamura and Kazuki Nagai and Sora Kanamaru}, title = {Two-layer Pop-up Origami Deployable Membrane Reflectarray Antenna}, booktitle = {}, year = 2022, } @inproceedings{CTT100892747, author = {Hirobumi Saito and Kosei Ishimura and Takashi Tomura and Jiro Hirokawa}, title = {Low Cost SAR Antenna with Wide Swath and High Ground Resolution}, booktitle = {Small Sat. Conf.}, year = 2022, } @inproceedings{CTT100874919, author = {Huanqian Xiong and Jiro Hirokawa and Takashi Tomura}, title = {A Compact Radiating Element Consisting of a Slot and a Wall for a Dual Polarized Parallel Plate Slot Array Antenna}, booktitle = {}, year = 2022, } @inproceedings{CTT100874923, author = {Qi Li and Jiro Hirokawa and Takashi Tomura and Nelson J. G. Fonseca}, title = {A 3×3-way Hollow Waveguide Nolen Matrix Using a 2-plane Unbalanced Coupler}, booktitle = {}, year = 2022, } @inproceedings{CTT100874922, author = {Yoshihiko Akamine and Takashi Tomura and Jiro Hirokawa}, title = {Computationally Efficient Near Field to Far Field Transformation Method for Radar Cross Section Measurements with Single Frequency}, booktitle = {}, year = 2022, } @inproceedings{CTT100874926, author = {Takashi Tomura and Jiro Hirokawa and Muhsin Ali and Guillermo Carpintero}, title = {Spatial Multiplexed Wireless Communication by E-band ROM Antennas and RoF}, booktitle = {}, year = 2022, } @inproceedings{CTT100874921, author = {Yaxiang Wu and Takashi Tomura and Jiro Hirokawa and Miao Zhang}, title = {Wideband Design of an Aperture-Coupled 2 × 2-ME-Dipole Subarray Based on Gap Waveguide Technology}, booktitle = {}, year = 2022, } @inproceedings{CTT100874890, author = {Yoshihiko Akamine and Takashi Tomura and JIRO HIROKAWA}, title = {円筒波展開に基づく重み関数を用いた一次元円走査レーダ散乱断面積近傍界遠方界変換}, booktitle = {信学技報}, year = 2022, } @inproceedings{CTT100892777, author = {Masashi Fujishiro and JIRO HIROKAWA and Takashi Tomura and Kentaro Nishimori}, title = {直角座標系二次元直交多重伝送におけるサブアレー間隔拡大による伝送容量増大の基礎検討}, booktitle = {}, year = 2022, } @inproceedings{CTT100867318, author = {Masato Machida and Raisei Mizokuchi and Jun Yoneda and Takashi Tomura and Tetsuo Kodera}, title = {ミックスモード伝送による RF 反射測定のクロストーク 低減}, booktitle = {}, year = 2022, } @inproceedings{CTT100887905, author = {Shohei Ogura and Takashi Tomura and Lin Lin}, title = {340GHz帯2×2素子誘電体充填導波管スロットサブアレーの広帯域設計}, booktitle = {}, year = 2022, } @inproceedings{CTT100869283, author = {Qi Li and Jiro Hirokawa and Takashi Tomura and Nelson J. G. Fonseca}, title = {A 3×3-way Hollow-waveguide Nolen Matrix Using a 2-plane Coupler with Unequal Power Division}, booktitle = {}, year = 2022, } @inproceedings{CTT100902570, author = {Gen Nakayama and Takashi Tomura}, title = {円形開口アレーによるアイソフラックス放射特性の基礎検討}, booktitle = {}, year = 2022, } @inproceedings{CTT100869090, author = {Yuki Takeda and Takashi Tomura and Hiraku Sakamoto}, title = {Reflection Phase Control of Reflectarray Composed of Single Flexible Substrate}, booktitle = {}, year = 2022, } @inproceedings{CTT100895862, author = {Takashi Tomura and Dongwon You and Atsushi Shirane and Kenichi Okada and 須藤 順平 and 永島 隆}, title = {26GHz帯広角ビーム走査パッチアレーのダイポールによる反射抑圧}, booktitle = {}, year = 2022, } @inproceedings{CTT100874900, author = {Shengjia Wu and Jiro Hirokawa and Takashi Tomura and Nelson J. G. Fonseca}, title = {Special Configurations of 1-D Parallel Switching Matrices with Four Beams}, booktitle = {}, year = 2022, } @inproceedings{CTT100874903, author = {Hirobumi Saito and Takashi Tomura and JIRO HIROKAWA}, title = {小型衛星搭載のCFRP製展開型スロットアレーアンテナ}, booktitle = {}, year = 2022, } @inproceedings{CTT100874904, author = {Yuto Katsura and Takashi Tomura and JIRO HIROKAWA}, title = {方形領域照射導波管スロットアレーアンテナの部分並列給電回路の設計}, booktitle = {}, year = 2022, } @inproceedings{CTT100879347, author = {Takashi Eishima and Soichiro Inoue and Akihiro Yonemoto and Jumpei Sudo and Takayuki Hosonuma and Shinichi Nakasuka and Atsushi Shirane and Takashi Tomura and Kenichi Okada and Kosuke Kiyohara}, title = {RF and Optical Hybrid LEO Communication System for Non-Terrestrial Network}, booktitle = {}, year = 2022, } @inproceedings{CTT100879446, author = {Takashi Tomura and Dongwon You and Atsushi Shirane and Kenichi Okada and 須藤 順平 and 永島 隆}, title = {26GHz帯広角ビーム走査パッチアレーのダイポールによる反射抑圧}, booktitle = {}, year = 2022, } @inproceedings{CTT100869136, author = {Baoquan Duan and Takashi Tomura and Jiro Hirokawa}, title = {Proposal of 4×4-mode Rectangular-coordinate Orthogonal Multiplexing Antenna System for the Non-far Region Communication}, booktitle = {}, year = 2022, } @inproceedings{CTT100869108, author = {Yoshihiko Akamine and Takashi Tomura and Jiro Hirokawa}, title = {Near Field to Far Field Transformation for Radar Cross Section Measurement Based on Cylindrical Wave Expansion}, booktitle = {}, year = 2022, } @inproceedings{CTT100869105, author = {Riki Yanagisawa and Jiro Hirokawa and Takashi Tomura}, title = {Design of a Mode Converter for Feeding an Omnidirectional Antenna in 300GHz-Band}, booktitle = {}, year = 2022, } @inproceedings{CTT100874899, author = {Yaxiang Wu and Takashi Tomura and Jiro Hirokawa and Miao Zhang}, title = {Design of a Wideband Aperture-Coupled 2×2-Magnetoelectric Dipole Subarray Fed by Groove Gap Waveguide}, booktitle = {}, year = 2022, } @inproceedings{CTT100867935, author = {Takashi Tomura}, title = {Rectangular-Coordinate Orthogonal Multiplexing (ROM) Antennas and Radio-over-Fiber (RoF) Enabled Wideband Wireless Links}, booktitle = {}, year = 2022, } @inproceedings{CTT100880020, author = {Shuhei Koike and Motoki Moritani and Misato Ishiwata and Shinya Tamura and Kazuki Nagai and Hiraku Sakamoto and Hiroki Nakanishi and Takashi Tomura and HIROSHI FURUYA and Akihito Watanabe}, title = {Revival and Successive Operation of 3U CubeSat OrigamiSat-1 with Multifunctional Deployable Membrane}, booktitle = {}, year = 2022, } @inproceedings{CTT100865685, author = {Hiroki Nishimoto and Takashi Tomura and JIRO HIROKAWA}, title = {Analysis and design of a circularly-polarized element on a parallel-plate waveguide with perpendicular corporate-feed}, booktitle = {信学技報}, year = 2022, } @inproceedings{CTT100867178, author = {Yuta Ishikawa and Takashi Tomura and Jiro Hirokawa}, title = {Design of a Circularly-polarized Crossed-slot Square-Arrangement Array Antennas on Alternating-phase Feed Parallel-plate Waveguide}, booktitle = {IEICE Technical Report}, year = 2022, } @inproceedings{CTT100880645, author = {M. Kato and H. Sakamoto and T. Tomura and M. Okuma}, title = {Phase Adjustment Algorithm for Deformation Compensation of Nonflat Reflectarray Antenna}, booktitle = {}, year = 2022, } @misc{CTT100886513, author = {Atsushi Shirane and Kenichi Okada and Takashi Tomura}, title = {フェーズドアレイアンテナ}, howpublished = {PublishedPatent}, year = 2022, month = {}, note = {特願2021-082321(2021/05/14), 特開2022-175691(2022/11/25)} } @misc{CTT100880504, author = {Takashi Tomura and JIRO HIROKAWA}, title = {共振器特性測定方法}, howpublished = {PublishedPatent}, year = 2022, month = {}, note = {特願2020-169744(2020/10/07), 特開2022-061671(2022/04/19)} }