Analysis of SAR on Human Head Caused by Antenna of PCS Handheld Telephone

PCS 전화기의 안테나에 의해 인체 두부에 유기되는 SAR 분석

  • Park, Ju-Derk (Division of Electrical and Electronic Eng., Chungbuk National Univ.) ;
  • Kim, Nam (Division of Electrical and Electronic Eng., Chungbuk National Univ.)
  • 박주덕 (충북대학교 전기전자공학부) ;
  • 김남 (충북대학교 전기전자공학부)
  • Published : 1999.12.01

Abstract

In this paper, the detection of 1 g and 10 g averaged SAR on human head caused by PCS handheld phones is analyzed and discussed. Conventional monopole antenna and planar structured PIFA are used in the computational model to apply to the antennas mounted on handheld phone. These antennas are designed to operate in the near of frequency 1.8 GHz, human head model is sampled to have cell size 1.5 mm and sloped to front direction by 30$^{\circ}$. It is found that, when monopole antenna is applied, 1 g averaged SAR is 1.4 W/kg, 10 g averaged SAR is 0.7 W/kg, when PIFA is applied, for each case, SARs are 1.143 W/kg, 0.4866 W/kg. While the radiation pattern of the monopole antenna is symmetrical, that of planar structured antenna is asymmetrical and SAR caused by PIFA is less than SAR by the monopole antenna. The radiation efficiency of PIFA is 62.6%, which is higher than that of monopole, 53%.

Keywords

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