SAR Data Evaluation and Three-Dimensional Distribution in a Human Head Model Under Different Radio Frequency Exposure Scenario

Electromagnetic radiation in the environment has increased over the past few decades due to the growing use of cellular voice and data transmission across several wireless communication bands. National and international electromagnetic exposure regulatory standards have been put into place to save people from the consequent effects of radio frequency radiation. The method of measuring the rate at which living objects, including humans, animals and plants, absorb electromagnetic energy when exposed to external microwaves is known as Specific Absorption Rate (SAR). It is crucial to measure the rates at which microwave energy is absorbed in human head models because humans absorb a considerable amount of electromagnetic radiation, mostly from cell tower and Wi-Fi antennas, due to the high conductivity and permittivity of their constituent tissues. In this paper, different exposure frequencies, plane wave incidence orientations, and incident wave polarizations are taken into account when computing SAR values and spatial distributions for a homogeneous phantom head model.