A Proposed Procedure for Monitoring SAR in Mobile Phone Production

This study has investigated the possibility of monitoring mass averaged specific absorption rate (SAR) in mobile phone production by use of free-space H-field measurements. Measurements on 100 units of the Ericsson mobile phone model R380world showed that the correlation between the SAR in a head phantom and the squared maximum free-space H-field above the phone was greater than 0.78. Hence, simple H-field measurements could be used in mobile phone production for monitoring the SAR.