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Conference Paper
Study on Dielectric Properties of Phantom Material for SAR Test in a Human Body
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- Authors
- A. K. Lee, J. I. Choi, D. U. Sim, H. D. Choi
- Issue Date
- 2006-08
- Citation
- Progress In Electromagnetics Research Symposium (PIERS) 2006, pp.1-4
- Language
- English
- Type
- Conference Paper
- Abstract
- Human body equivalent material would be needed to determine the specific absorption rate of body-mounted devices such as a personal digital assistant. In this paper, one-dimensional multi-layered models extracted from a Korean and a European voxel models of different physique were used to investigate the SAR level in the human trunk region exposed by a plane wave. The multi-layered models over one thousand cover various thicknesses and compositions of chest and abdomen parts of the two anatomical models. Peak 1-and 10-g SARs in each model were calculated and compared to those in the head-simulating tissue. The results show that a gap between the maximum SARs of the multi-layered models from the trunk region and the head-simulating tissue at most frequencies was very wide (the maximum 5.5 dB) and the maximum SAR level in the human trunk was too high to allow the equivalent SAR level in any single material. Therefore, a proper scaling factor which does not excessively overestimate the test result should be discussed and arranged from the SAR level in the head simulating tissue for SAR test for EM exposure at the human body region.