Numerical Validation of a Model of Antenna-Related Losses Within Reverberation Chambers

Reverberation Chambers (RCs) are widely used to perform electromagnetic testings. The contribution of antennas to the overall RC quality factor is of particular interest both to predict the amount of losses brought by antennas during measurements, as well as to perform noninvasive antenna characterisation. In this communication, we present a recently-proposed model, based on antenna scattering-matrix theory, which take into account both the structural and the antenna modes as well as the complex interactions between the two. In particular, we show, numerically, that it is possible to retrieve both the radiation efficiency and the input impedance, from the evaluation of the antenna contribution to the RC quality factor for a set of different loads.