• 제목/요약/키워드: Complex Permittivity Measurement of Liquids

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Complex Permittivity Measurement of Reference Liquids using the Slotted Coaxial Line at Mobile Communication Frequencies

  • Kim, Jeong-Ho;Gimm, Youn-Myoung
    • Journal of electromagnetic engineering and science
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    • 제4권3호
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    • pp.97-101
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    • 2004
  • Complex permittivities of reference liquids were measured by a liquid holder of slotted coaxial line with a movable probe at mobile communication frequencies. The validity of the liquid measurement system was checked by experimental tests with the reference liquids proposed in IEEE Std. 1528-200X or IEC 106/61/CDV.

동축 슬롯 선로를 이용한 기준 용액들의 이동 통신 주파수帶에서의 복소 유전율 측정 (Complex Permittivity Measurement using a Coaxial Slotted Line of Reference Liquids at Mobile Communication Frequencies)

  • 김정호;김윤명
    • 한국전자파학회논문지
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    • 제14권9호
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    • pp.955-960
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    • 2003
  • 본 논문에서는 이동 가능한 프로브(probe)가 있는, 종단된 동축 슬롯 선로(Coaxial slotted line)를 샘플 液의 흘더로 사용하여, 이동 통신 단말기 의 송신 주파수帶에서의 복소 유전율을 측정할 수 있는 시스템을 제작하였으며, 이를 이용하여 IEEE Std 1528-200X에 서 제안한 기준 액체들(Reference Liquids)의 복소 유전율을 측정 비교하여 봄으로써, 측정 시스템의 타당성을 조사하였다.

전자파 비흡수율(SAR) 측정용 인체 두뇌 모의 용액의 복소 비유전율 측정 (Complex Permittivity Measurement of Simulated Brain Tissue for the Evaluation of Specific Absorption Rate(SAR))

  • 김정호;김윤명
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2003년도 하계종합학술대회 논문집 I
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    • pp.310-313
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    • 2003
  • Complex permittivities of human head simulating liquids were measured by a sample holder of terminated slotted coaxial line with a movable probe at mobile communication frequencies. The validity of the liquid measurement system was checked by experiments with the reference liquids. Liquids of ingredients for human brain suggested in IEEE draft and those made by the authors were measured by this slotted line system.

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