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This aim of this paper is to investigate the specific absorption rate (SAR) distribution in a human head by using the finite-difference time-domain (FDTD) calculations, due to exposure to EMF radiation from a mobile phone at frequencies 900 MHz Mobile Phone model with a λ/2 monopole antenna and a hand head phone model dimensions are 100 mm x 50 mm x 20 mm. The head model used is a sphere with a diameter of 18 cm. The FDTD grid size used in the computation was 2.5 mm. The distance between the antenna and head was 5 mm. To simplify the FDTD simulation, the SAR in the head was calculated without the effect of the human body. It was found that the SAR induced in the head decreases with the distance from the radiating source.

FDTD Computation for Sar Induced in Human Head Due to Exposure to EMF from Mobile Phone