Temperature increase and SAR distribution in human brain and breast from cell phone RF exposure using FEM modeling

Abstract

Today, almost everyone in the society is using GSM technology as mobile phones have become irresistible. However, for the sake of the future of humanity, we also have to focus the other side of the coin, which is this technology's e ect on our health. Availability and broad usage of mobile technology mean more radio frequency (RF) signals and therefore more radiation. In this thesis, we have focused on interaction between cellular phones and human organs. For this purpose, we perform simulations on 900, 1800 and 2100 MHz frequency bands and investigate (speci c absorption rate) SAR and temperature increase on the human brain and breast. Brain studies can be classi ed as three main categories: Distance, frequency, and angle variations. The e ect of these variations on SAR and temperature increase has been investigated. E ects of distance and frequency on breast tissue are explained in the second section of the survey. Furthermore, a tumor located in human breast is assumed and by implementing di erent simulations, we try to estimate the location of the tumor. Most research in the literature on this area has been implemented using nite di erence time domain techniques. However, in our study we utilize nite element method, which is more convenient for complex geometries.