Misc - KODERA Sachiko
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FDTD Analysis of Whole-Body Average SAR in Anatomically based Human Model for Far Field Exposure
KODERA Sachiko, WANG Jianqing, FUJIWARA Osamu
IEICE technical report. Electromagnetic compatibility 105 ( 107 ) 97 - 101 2005.06
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
It is well-known that the electromagnetic whole-body absorption reaches the maximum at a resonance frequency when the human height is approximately 0.4 wavelength at that frequency in free space. The findings on electromagnetic absorption energy at resonance frequencies, however, are based on large scale numerical computations, which should be affected by human modeling, its accuracy and kinds of numerical codes including their absorbing boundary conditions. Moreover, the frequency band for a ubiquitous network society is moving to several GHz, and safety assessment in the frequency band is also needed to confirm. In this paper, we employed an FDTD algorithm incorporated with UPML (Uniaxial Perfectly Matched Layer) absorbing boundary conditions for a large scale SAR calculation. We first confirmed the validity of the FDTD code for a homogeneous sphere by comparing the calculated average SAR with that derived from Mie theory. After we determined the required FDTD calculation space from absorbing boundary based on the comparison with Mie theory, we calculated the whole body-averaged SAR for far field RF exposure at frequencies ranging from resonance to GHz bands. The calculated result happened to match well in the resonance band with the previously reported one by Dimbylow, while there exists substantial margin of difference in the GHz band.
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B-4-19 FDTD Analysis of Whole Body Average SAR at Resonance Frequencies
Kodera Sachiko, Wang Jianqing, Fujiwaka Osamu
Proceedings of the IEICE General Conference 2005 ( 1 ) 380 - 380 2005.03
Language：Japanese Publisher：The Institute of Electronics, Information and Communication Engineers
