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Study of 32-multiplexing transmission antenna system in the millimeter-wave band based on rectangular-coordinate two-dimensional polarity orthogonality

Research Project

Project/Area Number 21H01321
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21020:Communication and network engineering-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

廣川 二郎  東京工業大学, 工学院, 教授 (00228826)

Co-Investigator(Kenkyū-buntansha) 西森 健太郎  新潟大学, 自然科学系, 准教授 (90500611)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Granted (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2021: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Keywordsアンテナシステム / ミリ波 / 多重伝送 / 極性直交性 / 直角座標系
Outline of Research at the Start

マジックTを有する2次元モノパルス回路動作モードの直角座標系2次元極性直交性と2偏波共用化により非遠方界領域で最大32多重伝送アンテナシステムを60GHz帯で実現する。マジックTが持つ構造対称性により極性の周波数依存はなく,並列給電回路により比帯域約15%広帯域が実現できる。積層薄板拡散接合により中空多層構造が低損失で実現できる。送受信モジュール最大32セットを用いて多重化による伝送容量の増加を実現する。送受信の位置誤差等によるモード間の直交性の崩れを簡易な信号処理により補正する。補正効果により理想時からの伝送容量劣化を2%以内に抑える手法を実ハードウエアで検証する。

Outline of Annual Research Achievements

(a)アンテナ…16多重伝送において与えられた伝送距離に対して各モードの伝送量の和が最大となる16×16素子アンテナの励振係数を,実際のアンテナ構造を電磁界解析ソフトウエアに取り込んで求めた。その結果,振幅を一定にして位相だけを変化させた場合でも,振幅と位相の両方を変化させた場合とほぼ同程度の伝送量の和が得られた。これにより,位相変化を実現する経路差だけをつければよく,回路の構成を複雑にせずに実現できる。求められた励振分布を実現するマジックTを4段構成した2次元モノパルス回路を設計し,放射部である並列給電スロットアンテナと組み合わせて各モードでの透過特性を解析した。
(b)伝送特性…60GHz帯において2次元モノパルス並列給電導波管スロットアレーと高速近接無線モジュールを組み合わせた4多重QPSK伝送実験を行った。基準モードとその他の3つのモードの送信電力比は大きくなると,基準モードは信号雑音比(SNR)が小さくなり,アイソレーションが約15dBのモードはSNRが大きくなった。アイソレーションが約30dBのモードは,他モードの送信電力がある値を越えるとSNRが約9dBとなった。送信電力比が0dBにおいて,各モードのSNRが6dB以上となっている。
(c)信号処理…直角座標系直交多重(ROM)伝送の劣化を信号処理により補正するMatlabプログラムを作成した。入力パラメータとしては,加える振幅最大誤差,位相最大誤差,機器雑音,送信(多重)数である。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

(a)アンテナ…16多重伝送用アンテナの進捗が現在も想定より遅い状況が続いている。
(b)伝送特性…伝送特性測定に必要な60GHz帯送受信モジュールが4セットしか借用できなかったため,当初の8多重伝送の代わりに4多重伝送を行った。
(c)信号処理…当初の分担者が2022年1月に急逝したため,分担者が担当していた部分を代表者が実施しており,進捗が遅くなっている。

Strategy for Future Research Activity

(a)アンテナ…16多重伝送用アンテナを試作し,各モードでの近傍界分布測定,モード間のアイソレーションの周波数特性等を測定する。
(b)伝送特性…最低でも8多重の伝送実験ができるように準備を進める。可能であれば,今後試作する16多重伝送用アンテナを用いた伝送実験も行う。
(c)信号処理…作成したプログラムを用いて,加える振幅最大誤差,位相最大誤差,機器雑音,送信(多重)数を与えて実行する。

Report

(2 results)
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (38 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (11 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 11 results,  Open Access: 4 results) Presentation (24 results) (of which Int'l Joint Research: 14 results,  Invited: 6 results)

  • [Int'l Joint Research] 欧州宇宙機関(オランダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 厦門大学(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 欧州宇宙機関(オランダ)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] A Perpendicular-Corporate-Feed Parallel-Plate Slot Array Antenna Based on H-Plane Groove Gap Waveguides With Interlaced Triangular Pins2024

    • Author(s)
      Wu Yaxiang、Hirokawa Jiro、Tomura Takashi
    • Journal Title

      IEEE Transactions on Antennas and Propagation

      Volume: 72 Issue: 1 Pages: 1033-1038

    • DOI

      10.1109/tap.2023.3319129

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-band grating-loaded parallel-plate slot array antenna with low reflection2023

    • Author(s)
      Ji Shuang、Hirokawa Jiro、Tomura Takashi、Saito Hirobumi
    • Journal Title

      IEICE Communications Express

      Volume: 12 Issue: 6 Pages: 277-281

    • DOI

      10.1587/comex.2023SPL0019

    • ISSN
      2187-0136
    • Year and Date
      2023-06-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Broadband Full-Corporate-Fed Slot Array Antenna Based on the Single-Layer Substrate Integrated Waveguide2023

    • Author(s)
      Duan Baoquan、Zheng Shijiu、Zhang Miao、Hirokawa Jiro、Liu Qing Huo
    • Journal Title

      IEEE Access

      Volume: 11 Pages: 20230-20239

    • DOI

      10.1109/access.2023.3249963

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Wideband Full-Metal Sidewall-Loaded Magnetoelectric Dipole Array Based on Combined Ridge and Groove Gap Waveguides in the Q-Band2023

    • Author(s)
      Wu Yaxiang、Tomura Takashi、Hirokawa Jiro、Zhang Miao
    • Journal Title

      IEEE Transactions on Antennas and Propagation

      Volume: 71 Issue: 7 Pages: 6156-6161

    • DOI

      10.1109/tap.2023.3266064

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Multibeam Patterns Suitable for Massive MIMO Configurations2022

    • Author(s)
      Kentaro Nishimori, and Jiro Hirokawa
    • Journal Title

      IEICE Transactions on Communications

      Volume: E105.B Issue: 10 Pages: 1162-1172

    • DOI

      10.1587/transcom.2021MEP0004

    • ISSN
      0916-8516, 1745-1345
    • Year and Date
      2022-10-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Special assignments of adjacent output phase differences per input ports in generalized one-dimensional parallel switching matrices2022

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Journal Title

      IEICE Communications Express

      Volume: 11 Issue: 6 Pages: 268-272

    • DOI

      10.1587/comex.2022SPL0010

    • NAID

      130008158381

    • ISSN
      2187-0136
    • Year and Date
      2022-06-01
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] One-body Two-dimensional Switching Matrices with a Triangular Lattice of Beams2022

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Journal Title

      IEEE Antennas Wirel. Propag. Lett.

      Volume: 21 Issue: 3 Pages: 581-585

    • DOI

      10.1109/lawp.2021.3138864

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fast Analysis and Bandwidth Enhancement of the Radiating Subarray by Method of Moments for a Parallel-Plate Slot Array Antenna with Perpendicular-Corporate Feed2022

    • Author(s)
      Shuang Ji, Takashi Tomura, and Jiro Hirokawa
    • Journal Title

      IEEE Trans. Antennas Propag.

      Volume: 70 Issue: 4 Pages: 2645-2655

    • DOI

      10.1109/tap.2021.3119059

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Wideband and High-Gain All-Metallic Perpendicular-Corporate-Fed Multi-Layered Parallel-Plate Slot Array Antenna2022

    • Author(s)
      Shuang Ji, Takashi Tomura, and Jiro Hirokawa
    • Journal Title

      IEEE Access

      Volume: 10 Pages: 38000-38011

    • DOI

      10.1109/access.2022.3165121

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gap Waveguide With Interleaved Pins for Higher-Frequency Fabrication2022

    • Author(s)
      Yaxiang Wu, Jiro Hirokawa, and Takashi Tomura
    • Journal Title

      URSI Radio Sci. Lett.

      Volume: 4

    • DOI

      10.46620/rsl22-0040

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generalized One-Dimensional Parallel Switching Matrices With an Arbitrary Number of Beams2021

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Journal Title

      IEEE J. Microw.

      Volume: 1 Issue: 4 Pages: 975-988

    • DOI

      10.1109/jmw.2021.3106871

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Recent Advances on Two-dimensional Orthogonal Switching Matrices with an Arbitrary Number of Beams2024

    • Author(s)
      Jiro Hirokawa, Qi Li, Takashi Tomura, and Nelson J. G. Fonseca
    • Organizer
      IEEE Applied Sensing Conf.
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] “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4多重QPSK伝送2024

    • Author(s)
      加藤 優也, 広川 二郎, 戸村 崇, 竹厚 善生, 赤堀 耕一郎, 谷口 徹
    • Organizer
      信学総大
    • Related Report
      2022 Annual Research Report
  • [Presentation] A Dual-Polarized 2×2-Slot Subarray Antenna on Parallel-Plate Waveguide2023

    • Author(s)
      Yaxiang Wu, Jiro Hirokawa, and Takashi Tomura
    • Organizer
      IEEE Intl. Workshop Electromag.
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design of a Dual-Polarized Parallel-Plate Waveguide 2×2-Slot Subarray2023

    • Author(s)
      Yaxiang Wu, Jiro Hirokawa, and Takashi Tomura
    • Organizer
      IEEE AP-S URSI Intl. Symp.
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Two-dimensional rectangular-coordinate orthogonal multiplexing antenna system for non-far field region communication2023

    • Author(s)
      Jiro Hirokawa
    • Organizer
      Marina Forum Metantennas Multiple Antennas
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Research and Development of Corporate-feed Waveguide Slot Array Antennas in 120GHz and 350GHz Bands2023

    • Author(s)
      Jiro Hirokawa
    • Organizer
      Conf. Infrared, Millimeter Terahertz Waves
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 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2023

    • Author(s)
      広川二郎, Qi Li, Shengjia Wu, 戸村崇, Nelson J. G. Fonseca
    • Organizer
      信学会アンテナ伝播研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 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2023

    • Author(s)
      広川二郎
    • Organizer
      MIKA
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Numerical Design of Two-Dimensional Switching Matrices with a Triangular Lattice of Beams2022

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Organizer
      Euro. Conf. Antennas Propag.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Wideband Design of an Aperture-Coupled 2 × 2-ME-Dipole Subarray Based on Gap Waveguide Technology2022

    • Author(s)
      Yaxiang Wu, Takashi Tomura, Jiro Hirokawa, and Miao Zhang
    • Organizer
      IEEE AP-S URSI Intl. Symp.,
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Special assignments of output phase differences in generalized one-dimensional switching matrices2022

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Organizer
      IEEE AP-S URSI Intl. Symp.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Design Method of Gap Waveguide with Interlaced Pins for High-Frequency Fabrication2022

    • Author(s)
      Yaxiang Wu, Jiro Hirokawa, and Takashi Tomura
    • Organizer
      URSI-JRSM
    • Related Report
      2021 Annual Research Report
  • [Presentation] Recent Advances on Waveguide-Type Beam-Switching Matrices2022

    • Author(s)
      Jiro Hirokawa
    • Organizer
      Intl. Symp. Antennas Propag.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Groove Gap Waveguide With Interlaced Pins for Higher-Frequency Fabrication2022

    • Author(s)
      Yaxiang Wu, Jiro Hirokawa, and Takashi Tomura
    • Organizer
      Intl. Symp. Antennas Propag.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical design of one-dimensional switching matrices with an arbitrary number of beams and application to millimeter-wave two-dimensional ones2022

    • Author(s)
      Jiro Hirokawa
    • Organizer
      IEEE Microw. Antennas Propag. Conf.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Numerical design of one-dimensional switching matrices with an arbitrary number of beams and application to millimeter-wave two-dimensional ones2022

    • Author(s)
      広川二郎
    • Organizer
      MIKA
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Special assignments of output phase differences per input ports in generalized one-dimensional switching matrices2022

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Organizer
      信学総大
    • Related Report
      2021 Annual Research Report
  • [Presentation] Proposal of 4×4-mode Rectangular-coordinate Orthogonal Multiplexing Antenna System for the Non-far Region Communication2022

    • Author(s)
      Baoquan Duan, Takashi Tomura, and Jiro Hirokawa
    • Organizer
      信学総大
    • Related Report
      2021 Annual Research Report
  • [Presentation] Design of a Gap Waveguide with Interlaced Pins for Higher-Frequency Fabrication2022

    • Author(s)
      Yaxiang Wu, Jiro Hirokawa, and Takashi Tomura
    • Organizer
      信学通信大
    • Related Report
      2021 Annual Research Report
  • [Presentation] Beam-Switching 2-D Butler Matrices Generating a Triangular Lattice of Beams2021

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Organizer
      Intl. Symp. Antennas Propag.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Transmission Progress in Rectangular-Coordinate Orthogonal Multiplexing by Excitation Optimization of Slot Arrays Based on the Scattering Parameters2021

    • Author(s)
      Baoquan Duan, Takashi Tomura, Jiro Hirokawa, and Miao Zhang
    • Organizer
      IEEE AP-S URSI Intl. Symp.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Design of Planar Switching Matrices with an Arbitrary Number of Beams using Two-way Couplers2021

    • Author(s)
      Jiro Hirokawa, and Nelson J. G. Fonseca
    • Organizer
      IEEE AP-S URSI Intl. Symp.
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 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2021

    • Author(s)
      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
    • Organizer
      信学通信大
    • Related Report
      2021 Annual Research Report
  • [Presentation] 任意ビーム数1次元切替マトリックスの数値設計と2次元三角ビーム配列への適用2021

    • Author(s)
      広川二郎, フォンセカ ネルソン
    • Organizer
      信学通信大
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2024-12-25  

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