炭素短繊維を周期的に配置した広帯域電波吸収体の実験的検討 An Experimental Study on Wideband Wave Absorber Using Periodically-Arranged Short Carbon Fibers

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This paper examines λ/4 type wave absorber using priodically-arranged short carbon fibers whose length is λ/2 or λ/4 for two arbitrary frequencies. The measurement result of wave absorber shows wideband absorption characteristics of around 20dB from 4 to 7GHz, and the thickness of the absorber is 34% thinner than a traditional λ/4 type wave absorber at 4.5GHz. Next, we performed for an estimate of the surface resistance of the aspect arranged short carbon fibers to enable the theoretical design of the absorber, and an estimate of the aspect confirmed what was performed precisely by the agreement of calculated and measured absorption characteristics of wave absorber. Then, we changed the thickness and materials of the spacer, and calculated absorption characteristics with estimated surface impedance. The spacer was thinner, absorption characteristics was wider than measured one by calculation. As a result, we showed that a design of wave absorber using periodically arranged short carbon fibers was theoretically possible.

収録刊行物

  • 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society  

    電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 128(6), 846-852, 2008-06-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021132563
  • NII書誌ID(NCID)
    AN10065950
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854221
  • NDL 記事登録ID
    9531789
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-795
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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