The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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The Study on Implementation of a Semi-Solid Flat Phantom with Equivalent Electrical Properties to Whole Human Body at MICS and ISM Band

MICS 대역과 ISM 대역에서 인체 전기적 상수를 갖는 준(準) 고체형 플랫 팬텀 제작

  • Lee, Soon-Yong (Department of Electronic & Computer Engineering, Hanyang University) ;
  • Seo, Won-Bum (Department of Electronic & Computer Engineering, Hanyang University) ;
  • Kwon, Kyeol (Department of Electronic & Computer Engineering, Hanyang University) ;
  • Choi, Jea-Hoon (Department of Electronic & Computer Engineering, Hanyang University)
  • 이순용 (한양대학교 전자컴퓨터통신공학과) ;
  • 서원범 (한양대학교 전자컴퓨터통신공학과) ;
  • 권결 (한양대학교 전자컴퓨터통신공학과) ;
  • 최재훈 (한양대학교 전자컴퓨터통신공학과)
  • Received : 2012.01.04
  • Accepted : 2012.01.04
  • Published : 2012.01.31
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Abstract

When wireless devises for MICS(Medical Implant Communication Service) or ISM(Industrial Scientific and Medical) bands are designed, it is necessary to verify the performance by using a human body flat phantom. However, most of studies on the phantom are limited to the biological effects of mobile-phone EMF. In this paper, semi-solid phantoms having the electric properties suggested by FCC at MICS and ISM bands are fabricated. The manufactured phantoms satisfy the electric properties($\varepsilon_r=56.7$ and $\sigma=0.94$ at MICS band, $\varepsilon_r=52.7$ and $\sigma=1.95$ at ISM band) at each band. All the composing materials for phantoms are commercially available in domestic market. Two methods using both polyethylene powder and TX-151 and glycerin at each band are proposed for diverse purpose. The electrical properties of the fabricated phantoms are measured by a dielectric probe kit and network analyzer after the lapse of one day (24 hours).

MICS 및 ISM 대역의 무선기기 설계 시에 인체 팬텀을 이용한 성능검증이 필수적으로 요구되고 있으나, 인체팬텀에 관한 연구 대부분이 휴대폰에 의한 생체 영향에 국한되어 있는 실정이다. 본 논문에서는 FCC에서 제안하고 있는 MICS 대역과 ISM 대역의 인체 팬텀에 대한 전기적 상수를 이용하여 준고체형 팬텀들을 제작하였다. 제작된 준 고체형 팬텀들은 각 대역에서 FCC에서 제시한 전기적 상수(MICS 대역에서 $\varepsilon_r=56.7$, $\sigma=0.94$, ISM 대역에서 $\varepsilon_r=52.7$, $\sigma=1.95$)들을 만족하였다. 또한, 제작된 준 고체형 팬텀의 재료들은 쉽게 구매 가능한 재료들로 구성되었으며, 팬텀 재료의 다양성을 위해서 각 대역에서 polyethylene과 TX-151을 이용한 방법과 글리세린을 이용한 두 가지 방법을 제시하였다. 제작된 준 고체형 팬텀은 평탄한 형태이며, 유전율 측정기로 제작후 1일 (24 시간)이 경과한 후 팬텀의 전기적 특성을 측정하였다.

Keywords

References

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