• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Fujita Keisuke  藤田 佳祐

ORCIDConnect your ORCID iD *help
Researcher Number 90804857
Other IDs
Affiliation (Current) 2025: 前橋工科大学, 工学部, 助教
Affiliation (based on the past Project Information) *help 2019 – 2024: 前橋工科大学, 工学部, 助教
2018: 弓削商船高等専門学校, 情報工学科, 助教
Review Section/Research Field
Principal Investigator
Basic Section 21020:Communication and network engineering-related
Keywords
Principal Investigator
IoT / 球ヘリカルアンテナ / アンテナ理論 / Q値 / 放射効率 / 小形アンテナ / 数理モデル / アンテナ / 理論モデル / 解析的手法 … More / 電磁波 / 近傍界 / 帯域幅 / 広帯域 / 複共振 / 折り畳み / 小型アンテナ / 折り畳みアンテナ / 折りたたみ / 折りたたみアンテナ / 理論限界 Less
  • Research Projects

    (3 results)
  • Research Products

    (37 results)
  •  Antenna Design for Improved Reliability of Wireless IoT DevicesPrincipal Investigator

    • Principal Investigator
      藤田 佳祐
    • Project Period (FY)
      2024 – 2026
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Review Section
      Basic Section 21020:Communication and network engineering-related
    • Research Institution
      Maebashi Institute of Technology
  •  A Theoretical Model of Radiation Mechanism of Small Antenna for Improving Reliability of IoT DevicesPrincipal Investigator

    • Principal Investigator
      Keisuke Fujita
    • Project Period (FY)
      2021 – 2023
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 21020:Communication and network engineering-related
    • Research Institution
      Maebashi Institute of Technology
  •  Realization of an extremely small high performance antenna using origami structurePrincipal Investigator

    • Principal Investigator
      Fujita Keisuke
    • Project Period (FY)
      2018 – 2020
    • Research Category
      Grant-in-Aid for Early-Career Scientists
    • Review Section
      Basic Section 21020:Communication and network engineering-related
    • Research Institution
      Maebashi Institute of Technology
      Yuge National College of Maritime Technology

All 2023 2022 2021 2020 2019 2018

All Journal Article Presentation

  • [Journal Article] Closed-Form Expression of Radiation Characteristics for Electrically Small Spherical Helix Antennas2023

    • Author(s)
      Keisuke FUJITA , Keisuke NOGUCHI
    • Journal Title

      IEICE Trans. Commun.

      Volume: E106.B Issue: 5 Pages: 459-469

    • DOI

      10.1587/transcom.2022EBP3094

    • ISSN
      0916-8516, 1745-1345
    • Year and Date
      2023-05-01
    • Language
      English
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Analysis on the Electric Near-field of Small Spherical Helix Antennas by Using the Spherical Wave Expansion of the Novel Thin-wire Model2023

    • Author(s)
      藤田 佳祐、野口 啓介
    • Journal Title

      電子情報通信学会論文誌B 通信

      Volume: J106-B Issue: 3 Pages: 146-156

    • DOI

      10.14923/transcomj.2022GWP0005

    • ISSN
      1881-0209
    • Year and Date
      2023-03-01
    • Language
      Japanese
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Bandwidth Enhancement of a Spherical Helix Antenna with Multi-Mode Excitation2023

    • Author(s)
      島田 拓馬,西江 美奈,野口 啓介,小田垣 雅人,藤田 佳祐
    • Journal Title

      電子情報通信学会論文誌B 通信

      Volume: J106-B Issue: 11 Pages: 696-704

    • DOI

      10.14923/transcomj.2023APP0001

    • ISSN
      1881-0209
    • Year and Date
      2023-11-01
    • Language
      Japanese
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Wideband Spherical Helix Antenna with Multi-mode Excitation2023

    • Author(s)
      Shimada Takuma, Nishie Mina, Noguchi Keisuke, Fujita Keisuke
    • Journal Title

      Proc. of 2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

      Volume: - Pages: 1-3

    • DOI

      10.23919/ursigass57860.2023.10265332

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Modal Current Distribution for Electrically Small Spherical Helix Antenna2023

    • Author(s)
      Keisuke Fujita
    • Journal Title

      Proc. of IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE APWC)

      Volume: - Pages: 007-007

    • DOI

      10.1109/apwc57320.2023.10297485

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Significance of the Higher-order Modes to the Near-field Calculation of the Spherical Helix Antennas2022

    • Author(s)
      Keisuke FUJITA
    • Journal Title

      Proc. of 2022 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)

      Volume: - Pages: 048-048

    • DOI

      10.1109/apwc49427.2022.9899885

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Calculation of Q Factor for Spherical Helix Antennas2022

    • Author(s)
      Keisuke FUJITA, Takuma SHIMADA
    • Journal Title

      Proc. of 2022 URSI-Japan Radio Science Meeting (URSI-JRSM 2022)

      Volume: -

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Analysis on Near Field of Spherical Helix Antennas with Vector Spherical Harmonics2022

    • Author(s)
      Keisuke FUJITA
    • Journal Title

      Proc. of 3rd URSI Atlantic Radio Science Conference (URSI AT-AP-RASC)

      Volume: -

    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Radiation Efficiency Estimation for Spherical Helix Antennas2021

    • Author(s)
      K. Fujita
    • Journal Title

      Proc. of General Assembly and Scientific Symposium of the International Union of Radio Science

      Volume: -

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] A simplified expression on the radiation characteristics of small spherical helix antennas2021

    • Author(s)
      K. Fujita
    • Journal Title

      Proc. of IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications

      Volume: -

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Journal Article] Effective Q factor formula for small spherical surface antennas2020

    • Author(s)
      Fujita Keisuke
    • Journal Title

      IEICE Communications Express

      Volume: 9 Issue: 4 Pages: 111-116

    • DOI

      10.1587/comex.2019XBL0158

    • NAID

      130007825927

    • ISSN
      2187-0136
    • Language
      English
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Journal Article] High Efficiency Compact Cylindrical Helix Antenna2020

    • Author(s)
      藤田 佳祐、野口 啓介
    • Journal Title

      電子情報通信学会論文誌B 通信

      Volume: J103-B Issue: 11 Pages: 528-537

    • DOI

      10.14923/transcomj.2020APP0003

    • ISSN
      1881-0209
    • Year and Date
      2020-11-01
    • Language
      Japanese
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Journal Article] High-order Spherical Modes Analysis for Small Spherical Helix Antennas2018

    • Author(s)
      Keisuke Fujita
    • Journal Title

      Proc. of Progress In Electromagnetics Research Symposium (PIERS 2018)

      Volume: -

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Journal Article] Elliptically Polarized Compact Cylinder-Spiral Antenna2018

    • Author(s)
      Keisuke Fujita
    • Journal Title

      Proc. of 2018 IEEE Conference on Antenna Measurements & Applications (CAMA)

      Volume: - Pages: 1-3

    • DOI

      10.1109/cama.2018.8530491

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 装着者の災害状況が把握できるセンサ用小形アンテナの製作2023

    • Author(s)
      渡辺泰斗,藤田佳祐
    • Organizer
      電気学会東京支部栃木・群馬支所合同研究発表会
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] 交差 2線式球ヘリカルアンテナに関する基礎検討2023

    • Author(s)
      島田拓馬,西江美奈,野口啓介,藤田佳祐
    • Organizer
      2023年電子情報通信学会総合大会
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] 小形・複共振アンテナにおける電界強度の周波数特性2023

    • Author(s)
      島田 拓馬,西江 美奈,野口 啓介,小田垣 雅人,藤田 佳祐
    • Organizer
      2024年電子情報通信学会総合大会
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] Calculation of Q Factor for Spherical Helix Antennas2022

    • Author(s)
      Keisuke FUJITA, Takuma SHIMADA
    • Organizer
      2022 URSI-Japan Radio Science Meeting (URSI-JRSM 2022)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] Significance of the higher‐order modes to the near‐field calculation of the spherical helix antennas2022

    • Author(s)
      Keisuke Fujita
    • Organizer
      IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE-APWC 2022)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] Analysis on Near Field of Spherical Helix Antennas with Vector Spherical Harmonics2022

    • Author(s)
      Keisuke Fujita
    • Organizer
      3rd URSI Atlantic Radio Science Conference (URSI AT-AP-RASC)
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] 小形球ヘリカルアンテナの放射効率に関する解析表現2021

    • Author(s)
      藤田 佳祐
    • Organizer
      2021年電子情報通信学会 総合大会
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] A simplified expression on the radiation characteristics of small spherical helix antennas2021

    • Author(s)
      K. Fujita
    • Organizer
      IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] 円筒ヘリカルアンテナの折り畳みシステムに関する研究2021

    • Author(s)
      上瀬 亮,藤田 佳祐
    • Organizer
      電気学会東京支部栃木・群馬支所
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] IoT機器応用を目指した球及び円筒ヘリカルアンテナへの理論的アプローチ2021

    • Author(s)
      藤田佳祐
    • Organizer
      URSI-C委員会 第25期 第1回公開研究会
    • Invited
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] 小形球ヘリカルアンテナの簡易な給電構造モデル2021

    • Author(s)
      藤田 佳祐,野口 啓介
    • Organizer
      電子情報通信学会 ソサイエティ大会
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] Radiation Efficiency Estimation for Spherical Helix Antennas2021

    • Author(s)
      K. Fujita
    • Organizer
      General Assembly and Scientific Symposium of the International Union of Radio Science
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-21K14158
  • [Presentation] 小形球ヘリカルアンテナの放射抵抗2020

    • Author(s)
      藤田 佳祐
    • Organizer
      2021年電子情報通信学会 ソサイエティ大会
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 球面波展開を用いた最適小型アンテナの解明と実現2020

    • Author(s)
      藤田佳祐
    • Organizer
      電子情報通信学会アンテナ伝搬研究会
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 円柱ヘリカルアンテナの放射効率に関する基礎検討2019

    • Author(s)
      藤田佳祐
    • Organizer
      電子情報通信学会 ソサイエティ大会
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 複数の周波数で共振する球面アンテナに関する基礎検討2019

    • Author(s)
      藤田佳祐
    • Organizer
      電子情報通信学会 総合大会
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 機械学習を用いたアンテナ設計支援システムの開発に関する基礎検討2019

    • Author(s)
      Muhammad Syafiq bin Shahidan, 藤田 佳祐
    • Organizer
      情報処理学会 全国大会
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 折りたたみ円筒スパイラルアンテナの放射効率解析2019

    • Author(s)
      藤田佳祐
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Invited
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] Excitation of Eigenmode Current for Multiple Resonance Antenna2019

    • Author(s)
      Keisuke Fujita
    • Organizer
      2019 URSI International Symposium on Electromagnetic Theory
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] Recent Development of Electrically Small Spherical Helix Antennas2018

    • Author(s)
      Keisuke Fujita
    • Organizer
      12th Asia-Pacific Engineering Research Forum on Microwaves and Electromagnetic Theory (APMET 2018)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] High-order Spherical Modes Analysis for Small Spherical Helix Antennas2018

    • Author(s)
      Keisuke Fujita
    • Organizer
      Progress In Electromagnetics Research Symposium (PIERS 2018)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] 小型アンテナにおける放射効率限界の近似表現2018

    • Author(s)
      藤田佳祐
    • Organizer
      電気関係学会四国支部連合大会
    • Data Source
      KAKENHI-PROJECT-18K13760
  • [Presentation] Elliptically Polarized Compact Cylinder-Spiral Antenna2018

    • Author(s)
      Keisuke Fujita
    • Organizer
      2018 IEEE Conference on Antenna Measurements & Applications (2018 IEEE CAMA)
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-18K13760

URL: 

Are you sure that you want to link your ORCID iD to your KAKEN Researcher profile?
* This action can be performed only by the researcher himself/herself who is listed on the KAKEN Researcher’s page. Are you sure that this KAKEN Researcher’s page is your page?

この研究者とORCID iDの連携を行いますか?
※ この処理は、研究者本人だけが実行できます。

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi