Specific absorption rate of two commercial microcellular antennas
Résumé
In underground parkings or subway for example, microcellular or indoor antennas allow the acces to mobile telephony networks. People or maintenance technician can be near these antennas and consequently can be exposed to their radiated electromagnetic field. The EN50383 standard describes the valuation method of the exposure due to the microcellular base station antennas: the exposure is evaluated by means of the SAR induced in a flat phantom. The measured SAR level depends upon the antenna. This study compares the SAR values obtained for two antennas, a directive antenna and a ceiling antenna, related to the frequency and the distance between the antenna and the phantom.