An Efficient Algorithm for the Evaluate of the Electromagnetic Field near Several Radio Base Stations

This paper is motivated by the increased presence of the radio base stations, and the need to calculate the electromagnetic field near them. The debate on the effects of the electromagnetic field exposure, in line with the increased success and presence of the mobile telephony, has attracted the public interest and it has become a concern for the community. The standard procedures in place for estimation of the electromagnetic field require prior knowledge of the criteria for the field evaluation, be it near field, far field, presence of one or several base stations, the operating frequencies bands and their combinations. Aiming to have a practical method for the evaluation, the authors will try to do develop a theoretic model, on which base the authors will simulate the antenna of the base station and prepare the numeric method that will provide the baseline for the application. They will than compare the calculations for real situations for which all know the geometrical features, with the ones calculated based on a known theoretical method also knows as method of the moments MoM, simulated with NEC-2 (numerical electromagnetic code), and further more with the values measured in the field under the same conditions as the ones for the simulated environments. The results are interpreted in order to define the efficiency of the proposed method as well as to have an idea on the simplicity, accuracy and computing capacities.