Specific Absorption Rate in the human leg and testicle due to metallic coin and zip

Abstract

This research identifies and evaluates the effect of human body and conductive metallic objects in the vicinity of radiation source on Specific Absorption Rate (SAR). The presence of electronic devices in the vicinity of human body especially close to the human sensitive part especially when the antenna is left inside the trousers pocket could allow the radiated electromagnetic wave to penetrate inside human tissue. Realistic Voxel body model has been considered in the simulation. The excitation is provided by means of a simple dipole and PIFA antennas as the radiating source at 0.9 GHz and 1.8 GHz. Metallic coin and zip have been used in order to characterize the variation of SAR due to metallic objects. The results have shown that the presence of metallic objects near to human body could alter the energy absorption by the body. The presence of coin close to dipole antenna increases the 1g SAR in the leg by 58 %. In addition, the zip could significantly increases SAR inside the testicle by 30 % at 0.9 GHz.