Specific Absorption Rate Analysis of Smartphone

This paper discusses and analyzes the process of absorbing electromagnetic energy emitted by a smartphone. The study of the specific absorption rate (SAR) at the depth of the human head was carried out using a computer model simulated with COMSOL Multiphysics software. The computer model takes into account the technical parameters of a working smartphone and the biological characteristics of the human head. The model simulates the absorption process, depending on the type of radiation pattern of the antenna on a smartphone. To validate the results of the model in depth of the human head, an analysis of the brain activity of a person, using a smartphone, was performed.