Microwave power absorption in a human model near a corner reflector

The human living environment is mostly surrounded by buildings. This paper assumes the corner of a structure, and presents a model analysis for a huma n body standing close to a right-angled corner, examining the SAR character istics for TM and TE microwaves. In the microwave range, the three-dimensio nal model calculation is difficult because the length of the human body is large compared to the wavelength. A two-dimensional cylinder and an ellipti c cylinder are therefore used as the human model. The whole-body average SA R obtained from the two-dimensional cylinder model is compared to the alrea dy known realistic model presented for the TM resonance frequency range, an d the applicable range of the two-dimensional cylinder model is investigate d. Based on the result, the frequency characteristics of the whole-body ave rage SAR are investigated for various model positions and incidence angles. For 1 GHz, the result is compared to the case of the elliptical cylinder m odel. The local SAR distributions are also shown. It is seen that the whole -body average SAR can sometimes be as large as 10 times the case without a corner at a frequency below 1 GHz. (C) 2000 Scripta Technica, Electron Comm Jpn Pt 2, 83(3): 62-70, 2000.