Antennas and Power Measurement Techniques for Wireless Applications

This paper explores the time variation power measurement complexities of multi-output systems in dynamic scenarios, focusing on advanced power measurement techniques for regulatory compliance. Time Average Specific Absorption Rate (TAS); a critical feature commonly used in wireless devices as human exposure mitigation method, is a typical illustration for dynamic scenarios. While TAS measurement is straightforward in single-band, single-output scenario, it becomes more challenging, when involving multiple outputs and multiple bands requiring simultaneous measurements. In this paper multiple architecture of power time varying measurement solutions will be presented in multi-output context. These are illustrated in two cases: one with multi-band simultaneous transmission from the same antenna, and the other with multi-antenna simultaneous transmission on the same band