Amirkabir University of Technology AUT Journal of Electrical Engineering 2588-2910 49 2 2017 12 01 Measurement and Computational Modeling of Radio-Frequency Electromagnetic Power Density Around GSM Base Transceiver Station Antennas 179 186 1969 10.22060/eej.2017.12018.5026 EN P. Nassiri Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran M. Saviz Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran M. Helmi-kohnehShahri Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran M. Pourhosein Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran R. Divani Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran Journal Article 2016 10 08 Evaluating the power densities emitted by GSM1800 and GSM900 BTS antennas is<br />conducted via two methods. Measurements are carried out in half a square meter grids around two<br />antennas. CST Microwave STUDIO software is employed to estimate the power densities in order for<br />detailed antenna and tower modeling and simulation of power density. Finally, measurements obtained<br />from computational and experimental methods were compared through the contour lines using the<br />statistical Surfer software. After measuring and simulating all values, it turns out that power density is<br />generally lower than the permissible exposure limits although exceeds the limits in some sample points<br />. According to the measurements, simulation error in stations GSM900 and GSM1800 are 10% and 8%,<br />respectively. Findings from contour-line-maps illustrates that direct measurement method follows the<br />same emission pattern as the computational method does. It validates the computational approach and<br />the models attained for BTS power density estimation. https://eej.aut.ac.ir/article_1969_4d8556695c262ab91ff51a943fdd6058.pdf