A New Iterative MoM/FDTD Formulation for Simulating Human Exposure to Electromagnetic Waves

Shoji MOCHIZUKI  Soichi WATANABE  Masao TAKI  Yukio YAMANAKA  Hiroshi SHIRAI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E87-C   No.9   pp.1540-1547
Publication Date: 2004/09/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Basic Electromagnetic Analysis
Keyword: 
SAR,  iteration procedure,  numerical hybrid method,  FDTD method,  Method of Moments,  

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Summary: 
A new hybrid formulation has been derived for analyzing biological electromagnetic compatibility (Bio-EMC) problems by combining the frequency-domain Method of Moments (MoM) and the Finite-Difference Time-Domain (FDTD) method. This hybrid form is different from, and more direct than, the method previously proposed by Mangoud et al. Some numerical examples are given for the human head exposure field due to a half wavelength dipole and a one-wavelength loop antenna. Our iterative method is found to have fast convergence. In addition, our method works well for cases when the radiation antenna wires are not aligned with the FDTD lattice.