Experimental Investigation of the Metasurfaced Reverberation Chamber

This paper explores the concept of a metasurfaced reverberation chamber (MRC) through empirical measurements, utilizing a 1-bit random coding metasurfaced stirrer within a standard reverberation chamber (RC). The study rigorously compares the performance of the MRC against traditional mechanical stirrers, both horizontal and vertical, in terms of key metrics. These metrics include the quality factor (Q factor), number of samples, standard deviation, angle autocorrelation, average K factor, total scattering cross section (TSCS), and the enhanced back scattering coefficient (eb). The results demonstrate the practicality and effectiveness of the MRC in the operational frequency range of the RC. Notably, the use of the 1-bit random coding metasurface stirrer shows potential in significantly expanding the test volume of the RC, marking a promising advancement in reverberation chamber technology.