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

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

이동통신단말기에 노출된 인체 두부에 따른 전자파 비흡수율 비교

Comparison of SARs of Human Heads Exposed to Mobile Phone

  • 이애경 (한국전자통신연구원 무선방송기술연구소 전파기술연구부) ;
  • 최형도 (한국전자통신연구원 무선방송기술연구소 전파기술연구부) ;
  • 최재익 (한국전자통신연구원 무선방송기술연구소 전파기술연구부)
  • 발행 : 2000.11.01
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초록

두부 형상이 국내 표준에 근접하는 한 자원자 두부의 MR 및 CT 영상에 바탕하여 새로운 해부학적 두부 모델을 구현하였다. 서로 다른 형상을 갖는 두부의 전자파 비흡수율(SAR)을 비교하기 위해 두 가지의 해부학적 두부 모델의 SAR을 계산하였다. 하나는 구현된 모델이고 다른 하나는 미국 National Library Medicine에서 제작된 흑인 모델이다. 계산 공간 내의 두부와 이동통신단말기는 CENELEC과 FCC 지침의 접촉위치가 되도록 배치하였다. 얻어진 결과로부터 두부의 크기가 작을수록 두부 전체 평균 SAR은 높아짐을 볼 수 있었으나 1g 또는 10g 평균의 국부 SAR은 두부의 크기보다는 외이의 형상에 더 의존하는 것으로 보인다.

A new anatomical head model was implemented based on the MR and CT images of the head of a volunteer whose head shape is close to the domestic standard. In order to compare SARs (specific absorption rates) of heads with different shapes, we calculated SARs in the two anatomical head models. The one is the new model and the other is that of the black race and was made at National Library Medicine in USA. The head model and a phone model were arranged in the computational space to be the touch or cheek position of CENELEC (European Committee for Electrotechnical Standardisation) and FCC guidelines. From the obtained results, we can see that the smaller head produces the higher whole head-averaged SAR. However, it seems that the localized SAR averaged over 1 g or 10 g is more dependent on the shape of the auricle rather than that of the head size.

키워드

참고문헌

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