Analysis of Electromagnetic Radiation Effect on Layered Human Head Model

摘要

This paper deal with interaction of electromagnetic wave with the human body by using the algorithm of Frequency-Dependent Finite-Difference Time-Domain method ((FD)~2 TD method). The detailed algorithms of (FD)~2 TD method are presented in this paper when the electromagnetic wave propagates in dispersive medium. Thereby a similar three tiers spherical model of 2-D human head is built which from outside to inside is divided into the skin layer, the bone layer and the brain layer. And more, the distribution of specific absorption rate (SAR) is utilized to analyze the effect of the electromagnetic wave on the human head at 900 MHz job-frequency point. Compared with the usual international safe standards, the simulation results are below the safe standard when human head exposure to electromagnetic radiation in a short time.