Numerical and Experimental Investigations of a Commercial Mobile Handset for SAR Calculations

One of the current challenges in numerical dosimetry is to accurately model commercial mobile phones for SAR (Specific Absorption Rate) calculations. The complexity of computer-aided design (CAD) phone models does not allow straightforward numerical simulations. A pre-requisite is to develop a simplified but nonetheless accurate numerical equivalent of the original CAD model. An understanding of the electromagnetic near-field contribution of the different components of the handset is needed to produce the simplified model. A PIFA (planar inverted-F antenna)-based commercial mobile phone is herein investigated both numerically and experimentally to evaluate the electromagnetic importance of typical components of the mobile phone.