Incident angle characteristics of SAR in two‐dimensional three‐layered ellipse human model exposed to EM plane waves

Abstract

AbstractTo date, a number of calculations have been reported on the specific absorption rate (SAR) of power into various human models. Most of them specify the positional relationship between the human body and the wave source. However, in a real electromagnetic environment, the positional relationship between the source and the human body changes depending on the situation. Therefore, various positional relationships must be studied. In this paper, the angle‐of‐incidence dependence of the average SAR and the local SAR is studied as a positional relationship. Two plane waves, TE and TM, are allowed to be incident on a two‐dimensional three‐layered ellipse human model for numerical analysis. In the calculations, it is found that the average SAR becomes the maximum for frontal incidence on the human body at varying frequencies in both TE and TM wave incidence. With regard to the maximum local SAR, the angles of incidence to attain the maximum agree at all frequencies for TE wave incidence. However, the frequencies for the maximum do not agree above 1.5 GHz for the TM wave. In terms of the SAR distribution, the angle‐of‐incidence dependence at the maximum local SAR tends to differ with the frequency for both TE and TM waves. © 2002 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 85(12): 1–14, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.10057