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Study on Spherical Phased-Array Transceivers for Omnidirectional Communication

Research Project

Project/Area Number 21K14208
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionTokyo Institute of Technology

Principal Investigator

Shirane Atsushi  東京工業大学, 科学技術創成研究院, 准教授 (40825254)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords衛星通信 / 集積回路 / 無線電力伝送 / 小型衛星 / フェーズドアレイアンテナ / フレキシブル基板 / 超小型衛星 / 無線通信 / フェーズドアレイ / CMOS / ミリ波
Outline of Research at the Start

本研究は、超小型衛星による次世代の高速衛星通信の実現に向け、小型・軽量、そして姿勢制御不要な全方位通信が可能な球型フェーズドアレイ無線機を、折り畳み可能な多面体をフレキシブル基板で構成する独自のアプローチによって実現する。本研究では、アンテナ面積および姿勢制御の両方の課題を同時に解決するため、平面に展開するのではなく、折り畳まれた多面体を立体的に球面に展開する。多面体各面にアンテナ素子を搭載し、球型フェーズドアレイ無線機を実現する。球面座標系においてθ、φともにこれまで±60°程度の指向性制御範囲のものが、本研究によりθ、φともに±180°全方位への指向性制御を可能とする。

Outline of Final Research Achievements

Toward the realization of next-generation high-speed satellite communications using small satellites, this research has realized a spherical phased-array transceiver that is compact and lightweight, and can communicate in all directions without the need for attitude control, using an original approach that consists of a foldable polyhedron with a flexible substrate. Although the structure that folds small and expands to a flat surface has been actively studied, the attitude control mechanism that directs the antenna in a desired direction has been a challenge for installing the radio on a small satellite. In this study, in order to solve both antenna area and attitude control issues at the same time, a configuration in which the folded polyhedron is expanded into a spherical shape was adopted instead of expanding it into a flat surface.

Academic Significance and Societal Importance of the Research Achievements

本研究の球面展開型フェーズドアレイは、SpaceX社のような数百kg級衛星の非展開型フェーズドアレイや、現在研究開発段階にある平面展開型フェーズドアレイと比べても、アンテナ指向性を全方位に持つことで姿勢制御を不要にし、さらに多面体構成の展開構造によってコンパクトな収納を可能にすることで、一桁以上の軽量化を実現できる。飛躍的な打ち上げコストの低下により、通信衛星打ち上げへの参入障壁が下がり、あらゆる場所・時・人・モノがつながる世界の到来を加速する。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (5 results)

All 2023 2022

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (3 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] A Ka-Band Deployable Active Phased Array Transmitter Fabricated on 4-Layer Liquid Crystal Polymer Substrate for Small-Satellite Mount2023

    • Author(s)
      You Dongwon、Wang Xiaolin、Herdian Hans、Fu Xi、Lee Hojun、Ide Michihiro、Gomez Carrel Da、Li Zheng、Mayeda Jill、Awaji Daisuke、Pang Jian、Sakamoto Hiraku、Okada Kenichi、Shirane Atsushi
    • Journal Title

      IEEE Access

      Volume: 11 Pages: 69522-69535

    • DOI

      10.1109/access.2023.3291814

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Ka-Band 64-Element Deployable Active Phased-Array TX on a Flexible Hetero Segmented Liquid Crystal Polymer for Small Satellites2023

    • Author(s)
      You Dongwon、Xi Fu、Herdian Hans、Wang Xiaolin、Narukiyo Yasuto、Fadila Ashbir Aviat、Lee Hojun、Ide Michihiro、Kato Sena、Li Zheng、Wang Yun、Awaji Daisuke、Pang Jian、Sakamoto Hiraku、Okada Kenichi、Shirane Atsushi
    • Journal Title

      IEEE Microwave and Wireless Technology Letters

      Volume: 33 Issue: 6 Pages: 903-906

    • DOI

      10.1109/lmwt.2023.3264810

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Presentation] Beam Control Free 28GHz 5G Relay Transceiver and 24GHz Wireless Power Receiver Using On-Chip Butler Matrix2023

    • Author(s)
      Keito Yuasa, Sena Kato, Michihiro Ide, Kenichi Okada, and Atsushi Shirane
    • Organizer
      IEEE MTT-S International Microwave Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Ka-Band 64-element Deployable Active Phased Array Transmitter on a Flexible Hetero Segmented Liquid Crystal Polymer for Small Satellites2023

    • Author(s)
      Dongwon You, Xi Fu, Hans Herdian, Xiaolin Wang, Yasto Narukiyo, Ashbir Aviat Fadila, Hojun Lee, Michihiro Ide, Sena Kato, Zheng Li, Yun Wang, Daisuke Awaji, Jian Pang, Hiraku Sakamoto, Kenichi Okada, and Atsushi Shirane
    • Organizer
      IEEE MTT-S International Microwave Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Flexible Implementation of Ka-Band Active Phased Array for Satellite Communication2022

    • Author(s)
      Xiaolin Wang, Dongwon You, Xi Fu, Hojun Lee, Zheng Li, Daisuke Awaji, Jian Pang, Atsushi Shirane, Hiraku Sakamoto, Kenichi Okada
    • Organizer
      International Microwave Symposium
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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