System-level estimation of prevaling levels of EM fields of mobile phones considering near-field zone limitations of their antennas

Free-space radiowave propagation model, used in short-range EMC system analysis, is inadequate for the reactive near-field zone in the radiating source vicinity. It results in errors when the electromagnetic background intensity is being analyzed in cases with high terrestrial density of mobile transmitters, capable to be found nearer to an observation point at ranges, comparable with radius of this zone, and also in the probabilistic analysis of levels of prevaling electromagnetic fields of mobile sources near ground surface. Results of the analysis of influence of the given physical limits of the spherical wave model used for representation of an electromagnetic radiation of cellular phones, on adequacy of procedures of probabilistic estimation of its electromagnetic fields dynamic range and electromagnetic background near ground surface, are resulted. It is indicated, that the account of these limitations practically does not affect the results of this estimations, but permits to simplify the probabilistic estimation procedure for the levels of prevaling signals of cellular phones and total electromagnetic background intensity in places of heavy use of mobile communications.