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Estimation of distance property of field intensity produced by loop antenna operated in MHz band and immersed in liquid in terms of near-field gain

Research Project

Project/Area Number 25420361
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Communication/Network engineering
Research InstitutionNiigata University

Principal Investigator

ISHII Nozomu  新潟大学, 自然科学系, 准教授 (50232236)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords近傍界利得 / 距離特性 / 電界強度 / シールデッドループアンテナ / MHz液剤 / 電磁界強度 / 近傍界領域利得 / シールデッド・ループアンテナ / MHz帯液剤
Outline of Final Research Achievements

It was examined the feasibility of the calibration method of the probe using a reference antenna which is required for implementing the method of inserting the probe into the tissue equivalent liquid, which is one of the methods for SAR (specific absorption rate) evaluation in MHz band.
By appropriately selecting the size of a shielded loop antenna (SLA), which is a reference antenna, as its near-field gain is constant, it is possible to estimate the the electric field intensity radiated from the reference antenna, and it was confirmed that it is possible to realize the probe calibration in tissue-equivalent liquid for SAR evaluation in MHz band.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (7 results)

All 2015 2014 Other

All Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Presentation] Simulated Near-Field Gain of Dielectric-Coated Circular Loop Antennas Operated in Liquid and in HF Band2015

    • Author(s)
      Nozomu Ishii, Lira Hamada, and Soichi Watanabe
    • Organizer
      Proc. IEEE MTT-S IMWS-Bio 2015
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2015-09-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 液体中ループアンテナにおける被覆材料の液体吸収性による影響2015

    • Author(s)
      石井 望, 鶴間 さつき, 浜田 リラ, 渡辺 聡一
    • Organizer
      電子情報通信学会アンテナ・伝播研究会
    • Place of Presentation
      小山高専(小山市)
    • Year and Date
      2015-09-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] 位相中心を考慮した液剤中アンテナの遠方界利得推定に関する一考察2014

    • Author(s)
      石井 望, 張間 勝茂, 浜田 リラ, 渡辺 聡一
    • Organizer
      電子情報通信学会 無線端末・アンテナ測定技術研究会
    • Place of Presentation
      種子島宇宙センター 宇宙科学技術館 オーディトリウム(鹿児島県熊毛郡南種子町)
    • Year and Date
      2014-12-19
    • Related Report
      2014 Research-status Report
  • [Presentation] Modal Analysis on Insulated Loop Antenna Immersed in Liquid2014

    • Author(s)
      Nozomu Ishii, Lira Hamada and Soichi Watanabe
    • Organizer
      APMC2014
    • Place of Presentation
      仙台国際会議場(仙台市)
    • Year and Date
      2014-11-05
    • Related Report
      2014 Research-status Report
  • [Presentation] 液剤中動作ループアンテナの特性モード分析2014

    • Author(s)
      石井 望, 浜田 リラ, 渡辺 聡一
    • Organizer
      2014年電子情報通信学会ソサエティ大会
    • Place of Presentation
      徳島大学(徳島市)
    • Year and Date
      2014-09-25
    • Related Report
      2014 Research-status Report
  • [Presentation] Optimal Size of Waterproofed Shielded Loop Antenna in a Tissue-Equivalent Liquid to Calibrate SAR Probe in HF Band

    • Author(s)
      Nozomu Ishii, Ryosuke Takezawa, Hidenori Toyoshima, Lira Hamada and Soichi Watanabe
    • Organizer
      PIERS 2013 Stockholm
    • Place of Presentation
      The Scandic Victoria (Stockholm, Sweden)
    • Related Report
      2013 Research-status Report
  • [Presentation] 液剤中でシールデッドループアンテナの近傍界利得が一定となるループ長の存在について

    • Author(s)
      竹澤 諒亮,石井 望, 浜田 リラ,渡辺 聡一
    • Organizer
      平成25年度電子情報通信学会信越支部大会
    • Place of Presentation
      長岡技術科学大学(長岡市)
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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