Evaluation of three methods for measuring total radiated power of handset antennas

Three methods for measuring total radiated power of GSM handsets have been evaluated by an experimental comparison. Evaluated methods were scattered field measurement method, stirred-mode chamber method and three-dimensional pattern integration method (3-D PIM). The parameter investigated was total radiated power in talk position beside a torso phantom and in free space. The handset antenna performance testing including a human body phantom is a novel application for stirred-mode chambers and is presented. Based on the evaluation of the three methods, the 3-D PIM seems to be the most suitable method for antenna performance measurements of mobile terminals.