Electrical energy absorption in the human head from a cellular telephone

The antenna of a cellular telephone in close proximity to the human head for a variety of time periods raises questions. This research uses the finite-difference time-domain (FDTD) method to calculate the power deposition from a cellular telephone on a high-resolution model of a human head as measured by the specific absorption rates (SAR) in W/kg. Visualization has been used to verify the modeling for simulation, assisted in analyzing the data and understanding the physical aspects controlling the power absorption.