Comparison of various methods allowing the study of the power radiated by a mobile phone on the network
Résumé
The SAR of mobile phones is measured following the protocol described by the IEC62209-1 standard, which imposes the power level to be at its maximal value. In real use, the base station imposes the mobile phone radiated power by mean of power control (PWC). The PWC dynamic range is 30dB for GSM technology and 70dB for WCDMA technology. Consequently, the emitted power of the mobile phone may be very lower than its maximum value and the real mobile phone exposure may be very lower than the standardized value. This paper describes and compares several methods allowing the evaluation of the variations of the emitted power by a mobile phone.