Journal of the Institute of Electronics Engineers of Korea TC (대한전자공학회논문지TC)

The Institute of Electronics and Information Engineers (대한전자공학회)
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SAR analysis with variety of the antenna structures on PCS handset

PCS 전화기의 안테나 구조에 따른 SAR 분석

  • Kim, Hyoun-Kyoung (Dept. of Computer and Communication Eng., Chung-buk National University) ;
  • Park, Ju-Deok (Antenna Technology Center, Radio & Broadcasting Technology Laboratory, ETRI) ;
  • Kim, Jin-Seok (Faculty of Information & Industry, Songho College) ;
  • Kim, Nam (Dept. of Computer and Communication Eng., Chung-buk National University)
  • 김현경 (충북대학교 정보통신공학과) ;
  • 박주덕 (한국전자통신연구원 무선방송기술연구소 안테나 기술연구센터) ;
  • 김진석 (송호대학교 정보산업계열) ;
  • 김남 (충북대학교 정보통신공학과)
  • Published : 2000.11.01
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Abstract

In this paper, on calculating SARs on human head using computer simulation, SARs caused by PCS handsets are calculated and compared, and the design parameters that affect SAR values are analyzed. Is and 10 g peak averaged SARs are calculated as the type of antenna, the location of antenna, and the type of handset are changed and SAR distributions as depth of human head are shown. Among the antennas on flip type handsets, side mounted PIFA has the lowest SARs 1g and 10g peak averaged SARs are 0.686W/kg and 0.353W/kg. The SARs caused by monopole antenna on folder type handset are 1.133W/kg and 0.709W/kg. and are about 30% lower than monopole 1.759W/kg and 0.978W/kg, respectively. SAR distributions as depth of human head of side mounted PIFA and monopole antenna on folder-type handset are more slowly changed than those of top mounted PIFA and monopole antenna on flip-type handset.

본 논문에서는 컴퓨터 시뮬레이션을 이용하여 인체두부에 유기되는 SAR을 계산할 때 SAR 값에 영향을 주는 설계 파라미터를 분석하고, PCS 전화기에 의한 SAR 값을 비교 분석하였다. 안테나의 종류, 안테나의 부착위치, 단말기의 구조에 따른 1g 및 10g 평균 첨두 SAR 값을 계산하였고 각각의 구조에 따라 인체 두 부의 깊이에 따른 SAR 분포의 변화를 살펴보았다. 플립형 단말기에 부착된 안테나 중에서는 side mounted PIFA(Planar Inverted F Antenna)의 1g 및 10g 평균 첨두 SAR 값이 각각 0.686W/kg과 0.353W/㎏으로 가장 낮았다. 폴더형 단말기에 부착된 모노폴 안테나에 의한 1g 및 10g 평균 첨두 SAR값은 각각 1.133W/kg과 0.709W/kg으로 플립형의 1.759W/㎏과 0.978W/kg에 비해 약 30% 가량 낮은 것으로 나타났다. Side mounted PIFA와 폴더형에 부착된 모노폴 안테나의 깊이에 따른 SAR 분포는 top mounted PIFA와 플립형에 부착된 모노폴 안테나에 비해 비교적 완만한 변화를 보였다.

Keywords

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