Assessment of SAR in a human exposed to GSM electromagnetic fields LUAN AHMA, MIMOZA IBRANI, ENVER HAMITI Faculty of Electrical and Computer Engineering University of Prishtina Bregu i Diellit, nn KOSOVO luan.ahma@fiek.uni-pr.edu mimoza.ibrani@fiek.uni-pr.edu , enver.hamiti@fiek.uni-pr.edu , www.uni-pr.edu Abstract: Exposure to celular mobile communication electromagnetic fields has raised public concern regarding possible adverse effects to people exposed to such radiation. At frequency 900 MHz the most important parameter used to assess human exposure to electromagnetic fields is SAR (Specific Absorption Rate). In this paper are addressed two exposure scenarios: ▫ Human exposure to 900 MHz GSM base station electromagnetic fields, whereby with EMR-300 is measured field strength on different points located meters away from base station antenna. Using SAR prediction formula we have calculated induced SAR values for people located near base station antenna ▫ Human exposure to mobile phone GSM electromagnetic fields, whereby with a software (FDTD code) have simulated human head exposure to mobile phone radiation and have calculated Spatial Peak SAR over 1 gr and 10 gr of human body biological tissues. SAR is calculated for human of middle age, no gender or age distinction. Obtained results are presented graphically and tabulary and are compared with ICNIPR Guidelines Key-Words: GSM, SAR, base station antennas, field strength, mobile phone 1 Introduction Tremendous growth of mobile communications in general and of GSM in particular has been accompainned with public concern about potential biological impacts to living organisms. Even though mobile communications are considered by many as fundamentals of their lifestyle, concerns for potential health impacts caused by operation of mobile communications are becoming an issue for individuals, researchers, governments and other relevant institutions. Many studies have been done and are on going regarding potential biological, thermal non-thermal and behavioral effects to humans exposed to GSM electromagnetic fields. Interaction of GSM (Global System Mobile Communication) electromagnetic fields with a human is a multidimensional issue that depends from electromagnetic properties of human biological tissues as well. Dosimetric studies are performed to quantify the interactions of electromagnetic fields with biological tissues Proceedings of the 13th WSEAS International Conference on COMMUNICATIONS ISSN: 1790-5117 131 ISBN: 978-960-474-098-7