Exposure system for a study of effects of mobile phones to human sleep and its dosimetry evaluation using numerical mobile phone

An exposure system for human provocation studies has been developed for the experiment on the effect of electromagnetic field exposure from mobile phone to the human sleep. The mobile phone, with an uplink of 1950 MHz, is configured to transmit the maximum output power of 250 mW. The results from the actual experiment for prolonged exposure of 3 hours have not shown any adverse effect of the EMF from mobile phone on the sleep of the human volunteers. We have also evaluated the specific absorption rate in the head of the adult Japanese human model using numerical phone modeled based on the shape and antenna used in the actual mobile phone employed in the experiment. The specific absorption rate was evaluated using finite-difference time-domain. Small values of SAR, i.e., less than 0.2 W/kg, were observed in the brain, with.