SAR simulations for compliance and trend analysis

RF exposure from using wireless telephones is treated. The specific absorption rate (SAR) is used as a metric for determining compliance and standard procedures are in place for defining and measuring peak averaged SAR quantities. The goal of this paper is to demonstrate the utility of parametric SAR simulations for compliance and trend analysis. In this paper, simulation uncertainty based on systematic changes in the homogeneous parameters is shown to be less than typical measurement uncertainty. For trend analysis, antenna to phantom distance versus SAR is considered. However, in this paper, emphasis is given to small distances where the field-tissue interaction is mainly absorbing. The simulation results presented demonstrate the value of parametric studies for analyzing performance trends.