Computation of SAR Distributions in a Head Due to a Radiating Dipole Antenna Representing A Hand-Held Mobile Phone

In this paper, we describe a study of the electromagnetic absorption in the human body for some antennas used for mobile telephones and communication antennas using the finite-difference time-domain (FDTD) electromagnetic simulation approach. We have also have a finite-element (FE) based commercial electromagnetic solver (HFSS) was used for the most part of the study. Various antennas used for cellular phones such as the monopole and dipole antennas have been considered in the investigation. We have also studied the effect of using the widely disparate tissue properties reported in the literature and of using homogeneous and heterogeneous models on the specific absorption rate (SAR) distributions for 1 W of power radiated