상세정보
학술지
Study of the tissue volume for spatial-peak mass-averaged SAR evaluation
- 발행일
- 200205
- 출처
- IEEE Transactions on Electromagnetic Compatibility, v.44 no.2, pp.404-408
- ISSN
- 0018-9375
- 출판사
- IEEE
- 협약과제
- 02MR2500, 전자파 영향 및 표준화 연구, 채종석
- 초록
- For being adaptable to the irregular shape of a biological model and for not underestimating the spatial-peak mass-averaged specific absorption rates (SARs) of hand-held wireless telephones, a method of taking a contiguous tissue volume for the SAR-averaging-mass is proposed. The proposed method is to obtain a tissue volume for SAR averaging by summing node masses of the layers enclosing the point in which the averaged SAR is wanted in a body model until the summed mass is closest to the required mass. Therefore, at the skin layer and in the tissue region around the sinuses such as nasal cavities, the averaging volume can follow closely the shape of the region. To investigate the effect of this algorithm on SAR evaluation, SARs have been evaluated numerically for an anatomical head with a simple hand models exposed to a mobile phone, using the proposed method and the previous method of averaging over a cubic tissue volume and the results are compared. The results show that the proposed algorithm is very reasonable and leads to more stable values for spatial-peak mass-averaged SAR evaluation in an irregularly shaped model such as a realistic human model.
- KSP 제안 키워드
- Biological model, Contiguous tissue, Hand-held, Irregular shape, SAR evaluation, Skin layer, averaging volume, body model, human model, mobile phone, specific absorption rates(SAR)