[Japanese/English]

2021.1.1-2021.12.31

論文 (Journal Papers)

[English]

1. K. Itakura, A. Hirata, M. Sonoda, T. Higashimoto, T. Nagatsuma, T. Tomura, J. Hirokawa, N. Sekine, I. Watanabe, and A. Kasamatsu, “Control of 120-GHz-band split ring resonator filter by coupling lattice pattern substrate,” IEICE Trans. Electron., vol. E104-C, no. 3, pp. 102--111, Mar. 2021.
2. T. Tomura, J. Hirokawa, M. Furukawa, T. Fujiwara, and N. Shinohara, “Eight-port feed radial line slot antenna for wireless power transmission,” IEEE Open J. Antennas Propag., vol. 2, pp. 170--180, Feb. 2021.
3. T. Tomura and J. Hirokawa, “Anisotropic conductivity measurements by two kinds of multimode rectangular plate-laminated cavities,” IEEE Trans. Microw. Theory Techn., vol. 69, no. 1, pp. 170--178, Jan. 2021.
4. M. K. Emara, T. Tomura, J. Hirokawa, and S. Gupta, “All-dielectric Fabry-Perot based compound Huygens' structure for millimeter-wave beam-forming,” IEEE Trans. Antennas Propag., vol. 69, no. 1, pp. 237--285, Jan. 2021.
5. T. Tomura, J. Hirokawa, M. Ali, and G. Carpintero, “Millimeter-wave multiplexed wideband wireless link using rectangular-coordinate orthogonal multiplexing (ROM) antennas,” J. Lightw. Technol., vol. 39, no. 24, pp. 7821--7830, Dec. 2021.
6. A. Hirata, K. Itakura, T. Higashimoto, Y. Uemura, T. Nagatsuma, T. Tomura, J. Hirokawa, N. Sekine, I. Watanabe, and A. Kasamatsu, “Transmission characteristics control of 120 GHz-band bandstop filter by coupling alignment-free lattice pattern,” IEICE Trans. Electron., vol. E104-C, no. 10, pp. 1745-1353, Oct. 2021.
7. S. Sakurai, J. G. N. Rahmeier, T. Tomura, J. Hirokawa, and S. Gupta, “Millimeter-wave Huygens' transmit-arrays based on coupled metallic resonators,” IEEE Trans. Antennas Propag., vol. 69, no. 5, pp. 2686-2696, May 2021.
8. K. Omoto, T. Tomura, and H. Sakamoto, “Proof-of-concept on misalignment compensation for 5.8-GHz-band reflectarray antennas by varactor diodes,” IEEE Access, vol. 9, pp. 54101-54108, Apr. 2021.
9. N. J. G. Fonseca, S. Gomanne, P. Castillo-Tapia, O. Quevedo-Teruel, T. Tomura, and J. Hirokawa, “Connecting networks for two-dimensional butler matrices generating a triangular lattice of beams,” IEEE J. Microw., vol. 1, no. 2, pp. 646-658, Apr. 2021.

[Japanese]

レター (Letters)

[English]

1. K. Jitosho, T. Tomura, and J. Hirokawa, “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,” IEICE Commun. Express, vol. 10, no. 2, pp. 93--98, Feb. 2021.

[Japanese]

学会 (Conferences)

[国際学会 (International)]

1. Y. Ishikawa, T. Tomura, and J. Hirokawa, “Excitation by Metal Posts of Square-arrangement Slot Antennas in Alternating-phase Feed Parallel-plate Waveguide,” Intl. Symp. Antennas Propag., 2A2.5-79, Jan. 2021.
2. H. Nishimoto, T. Tomura, and J. Hirokawa, “Design of a Multi-layer Circularly-polarized Element for a Corporate-feed Array Using Hexagonal and Circular Slot Layers,” Intl. Symp. Antennas Propag., 2B2.6-93, Jan. 2021.
3. T. Wang, T. Tomura, and J. Hirokawa, “Design of Longitudinal Coupling Slots with Matching Walls for a Rectangular Parallel Plate Slot Array Antenna,” Intl. Symp. Antennas Propag., 2D3.7-195, Jan. 2021.
4. B. Duan, T. Tomura, and J. Hirokawa, ; M. Zhang, “Transmission Enhancement in Rectangular-Coordinate Orthogonal Multiplexing by Excitation Optimization of Slot Arrays Based on the Scattering Parameters,” Intl. Symp. Antennas Propag., 2A4.3-247, Jan. 2021.
5. T. Tomura, and J. Hirokawa, “Near-field Aperture Distribution Measurement of 8×2-element 60-GHz-Band Circularly Polarized Post-Wall Waveguide Dipole Loaded Slot Arrays,” Intl. Symp. Antennas Propag., 2A4.4-249, Jan. 2021.
6. N. Fonseca, and S. Gomanne, ; J. Hirokawa, “Connecting Networks for Two-Dimensional Butler Matrices With Improved Aggregate Gain,” Intl. Symp. Antennas Propag., 2E4.2-285, Jan. 2021.
7. T. Ruckkwaen, T. Tomura, and J. Hirokawa, “Transmission Enhancement for Radial Line Slot Antennas in Non-Far Region Using a Feeding Slot with Better Rotating Mode,” Intl. Symp. Antennas Propag., 3C1.3-339, Jan. 2021.
8. K. Jitosho, T. Tomura, and J. Hirokawa, ; K. Nishimori, “ Rectangular-coordinate Orthogonal Multiplexing including Modulation,” Intl. Symp. Antennas Propag., 3E1.5-363, Jan. 2021.
9. S. Sakurai, T. Tomura, and J. Hirokawa, “Suppression of Mutual Coupling between Microstrip Antenna Arrays by Antenna Decoupling Surfaces,” Intl. Symp. Antennas Propag., 3A2.1-385, Jan. 2021.
10. Y. Wu, T. Yu, M. Zhang, and D. Yu, ; J. Hirokawa, ; Q. Liu, “A W-Band Corporate-Fed Hollow-Waveguide Slot Array Antenna by Glass Micromachining,” Intl. Symp. Antennas Propag., 3F2.2-435, Jan. 2021.
11. S. Ji, T. Tomura, and J. Hirokawa, “Efficient Optimization for Bandwidth of the Element of a Multilayer Parallel-plate Slot Array,” Intl. Symp. Antennas Propag., 3F2.4-439, Jan. 2021.
12. S. Chen, T. Tomura, and J. Hirokawa, ; K. Ito and M. Suga, ; Y. Shirato and D. Uchida, ; N. Kita, “Design to operate in Two Frequency Bands by Division of the Coupling Region in a Waveguide 2-plane Hybrid Coupler,” Intl. Symp. Antennas Propag., 3E4.3-595, Jan. 2021.
13. S. Yamakawa, T. Tomura, and J. Hirokawa, “Mode-matching Analysis and Genetic Algorithm Optimization for an E-plane Coupler by Changing the Cross-sectional Shape of the Coupling Region,” Intl. Symp. Antennas Propag., 4A1.5-629, Jan. 2021.
14. W. Kuramoto, T. Tomura, and J. Hirokawa, “Wideband Design of a H-plane T-junction by Shape Optimization for a Corporate-feed Circuit of a Waveguide Slot Array in the 60GHz-band,” Intl. Symp. Antennas Propag., 4A2.4-697, Jan. 2021.
15. M. Kurose, T. Tomura, and J. Hirokawa, “Control of the reception level in a touchless entrance control gate using the millimeter-wave band waveguide slot array installed on the sides,” Intl. Symp. Antennas Propag., 4G2.1-747, Jan. 2021.
16. M. Kato, H. Sakamoto, T. Tomura, and M. Okuma, “Phase Adjustment Algorithm for Deformation Compensation of Nonflat Reflectarray Antenna,” Intl. Symp. Antennas Propag., 3D3.5-495, Jan. 2021.
17. Jiro Hirokawa and Nelson J. G. Fonseca, “Mode-matching Analysis and Genetic Algorithm Optimization for a Two-plane Coupler by Changing the Cross-sectional Shape of the Coupling Region,” Intl. Symp. Antennas Propag.,Oct. 2021.
18. Shota YAMAKAWA, Takashi TOMURA, and Jiro HIROKAWA, “Beam-Switching 2-D Butler Matrices Generating a Triangular Lattice of Beams,” Intl. Symp. Antennas Propag.,Oct. 2021
19. Yuta ISHIKAWA, Takashi TOMURA, and Jiro HIROKAWA, “Design of a Slot Array Antenna on Alternating-phase Feed Parallel-plate Waveguide,” Intl. Symp. Antennas Propag.,Oct. 2021.
20. Yoshiki HARA, Takashi TOMURA, and Jiro HIROKAWA, “Effect on Unloaded Q Factor by a Feeding Structure of a 330-500 GHz Band Reflection-Type Hollow Rectangular Resonator,” Intl. Symp. Antennas Propag.,Oct. 2021.
21. Yuki Tomori,Tianyu Wang,Jiro Hirokawa,Takashi Tomura, “Design of a Circularly Polarized Slot Array on a Parallel-plate Waveguide fed by Longitudinal Coupling Slots with Posts,” Intl. Symp. Antennas Propag.,Oct. 2021
22. Takashi Tomura, Masato Machida, and Hiraku Sakamoto, “Simulation Results of a Foldable Reflectarray Composed of Four Triangular Notched Patches,” Intl. Symp. Antennas Propag.,Oct. 2021.
23. Mizuki Kurose, Takashi Tomura, Jiro Hirokawa, “Reception level in a touchless ticket gate including the element pattern in the millimeter-wave band waveguide slot array installed on the sides,” Intl. Symp. Antennas Propag.,Oct. 2021.
24. Q. Li, J. Hirokawa, T. Tomura, and N.J.G. Fonseca, “Design of a waveguide two-plane hybrid coupler with nonuniform division,” IEEE Int. Symp. Antennas Propag. (AP-S), TH-UB.1P.6, Dec. 2021.
25. T. Tomura and J. Hirokawa, “Gain evaluation of millimeter-wave-band plate-laminated-waveguide slot arrays by measured anisotropic conductivity,” IEEE Int. Symp. Antennas Propag. (AP-S), MO-UB.2P.2, Dec. 2021.
26. M. Emara, S. Gupta, T. Tomura, and J. Hirokawa, “Millimeter-wave quarter-wave plate for diffusion bonded slot array antennas,” IEEE Int. Symp. Antennas Propag. (AP-S), MO-A2.2A.5, Dec. 2021.
27. B. Duan, T. Tomura, J. Hirokawa, and M. Zhang, “Transmission progress in rectangular-coordinate orthogonal multiplexing by excitation optimization of slot arrays based on the scattering parameters,” IEEE Int. Symp. Antennas Propag. (AP-S), TH-UB.1P.4, Dec. 2021.
28. T. Tomura, S. Sakurai, J. Hirokawa, and S. Gupta, “Excitation phase control of parallel-fed waveguide slot array antenna using printed circuit board single-layer structure transmit array,” IEEE Int. Workshop Electromagnetics: Appl. Student Innovation Competition (iWEM), TP1B, Nov. 2021.
29. M. Ali, G. Carpintero, T. Tomura, J. Hirokawa, S. Nellen, and B. Globisch, “Millimetre-wave photonic emitter featuring a PIN-PD with WR-12 output,” Int. Topical Meeting Microw. Photonics (MWP), Mo3.5 , Nov. 2021.
30. T. Tomura, J. Hirokawa, M. Ali, and G. Carpintero, “Spatial multiplexed wideband wireless link using e-band rectangular-coordinate orthogonal multiplexing (ROM) antennas,” Int. Topical Meeting Microw. Photonics (MWP), Tu2.5 , Nov. 2021

[国内学会 (Domestic)]

電子情報通信学会 総合大会 (IEICE General Conference)

1. 黒瀬瑞輝, 廣川二郎, 戸村崇. "側面に設置したミリ波帯導波管スロットアレーによるタッチレス改札内受信レベルの解析, ", 信学総大, Mar. 2021.
2. 町田理人,戸村崇,坂本啓,"折り畳み可能なフレキシブル基板パッシブリフレクトアレーの設計., " 信学総大, Mar. 2021.
3. Tianyu Wang, Takashi Tomura, Jiro Hirokawa," Design of a Waveguide Feeder with Centered Longitudinal Coupling Slots for a Parallel-Plate Slot Array Antenna Panel., " 信学総大, Mar. 2021.
4. Tuchjuta RUCKKWAEN, Takashi TOMURA, Jiro HIROKAWA," Transmission Stability on Distance in the Near-field Region in 5.8 GHz Band Radial Line Slot Antennas Using a Dog-bone Cross-slot Feed., " 信学総大, Mar. 2021.
5. Baoquan Duan, Takashi Tomura, Jiro Hirokawa,"Transmission Simulation in Rectangular-Coordinate Orthogonal Multiplexing by Excitation Optimization of Slot Arrays Based on the Scattering Parameters, " 信学総大, Mar. 2021.
6. Qi Li, Jiro Hirokawa, Takashi Tomura, Nelson J. G. Fonseca,"Design of a 2-plane Coupler with Unequal Division," 信学総大, Mar. 2021.
7. Jiro Hirokawa, Qi Li, and Nelson J. G. Fonseca,"Configurations of 2-D Beam-switching One-body Butler Matrices using 2-plane Couplers
Generating a Triangular Lattice of Beams, " 信学総大, Mar. 2021.
8. 友利優希,Tianyu Wang,広川二郎,戸村崇,"26GHz帯平行平板円偏波スロットアレーアンテナの設計," 信学総大, Mar. 2021.
9. 石川裕太,戸村崇,広川二郎,"逆相給電平行平板導波路スロットアレーアンテナの設計," 信学総大, Mar. 2021.
10. 戸村崇, 坂本啓,"面外変形によるリフレクトアレーアンテナの利得低下量の一検討," 信学総大, Mar. 2021.

電子情報通信学会 ソサイエティ大会 (IEICE Society Conference)

1. 黒瀬瑞輝, 廣川二郎, 戸村崇. "側面に設置したミリ波帯導波管スロットアレーによるタッチレス改札内受信レベルの解析, "信学ソ大, Sep. 2021.
2. 齋藤宏文,広川二郎,戸村崇,石村康生,田中孝治,"小型合成開口レーダ衛星用のCFRP 製２次元スロットアレーアンテナ., "信学ソ大, Sep. 2021.
3. 石川裕太,戸村崇,広川二郎," 逆相給電平行平板導波路における円偏波クロススロット正方配列アレーアンテナの設計., "信学ソ大, Sep. 2021.
4. 山川奨太,戸村崇,広川二郎," 導波管2 面結合器における結合領域管軸方向の断面形状変化による広帯域化., "信学ソ大, Sep. 2021.
5. 広川二郎,戸村崇,地頭所浩平,西森健太郎,竹厚善生,赤堀耕一郎,谷口徹,"モノパルス並列給電導波管スロットアレーを用いた直角座標系直交非遠方界2 多重QPSK伝送., "信学ソ大, Sep. 2021.
6. 戸村崇，広川二郎，山中大輔，木寺信隆，加賀谷修，“60GHz 帯ポスト壁導波路2 面結合器の設計，” 信学ソ大，C-2-41，Sept. 2021．
7. 赤嶺賢彦，戸村崇，広川二郎，“RCS 計測のための近傍界遠方界変換における表面波散乱の影響，” 信学ソ大，B-2-11，Sept. 2021．

電気学会

電子情報通信学会 東京支部学生会研究発表会

研究会・技術報告書 (Meeting, Technical Reports)

1. 桂悠斗,戸村崇,広川二郎,"方形領域照射導波管スロットアレーアンテナの研究, "信学技報, vol. 121, no. 191, AP2021-75, pp. 33-36, 2021年10月.
2. 友利優希,Tianyu Wang,戸村崇,広川二郎,"非傾斜スロットを用いた円偏波放射平行平板アンテナの研究, "信学技報, vol. 121, no. 191, AP2021-76, pp. 37-41, 2021年10月.
3. 柳澤利樹,戸村崇,広川二郎,"300GHz帯無指向性アンテナ給電用モード変換器に関する研究, "信学技報, vol. 121, no. 191, AP2021-88, pp. 74-77, 2021年10月.
4. 武田裕貴,戸村崇,広川二郎,"折り畳み収納リフレクトアレーアンテナの展開における変形補償の研究,"信学技報, vol. 121, no. 191, AP2021-89, pp. 78-81, 2021年10月.
5. 原慶城,戸村崇,広川二郎,"テラヘルツ帯部分並列給電導波管スロットアレーのアンテナ効率と帯域に関する研究, "信学技報, vol. 121, no. 191, AP2021-90, pp. 82-88, 2021年10月.

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[English]

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