Anechoic chamber design

Abstract

An anechoic chamber usually involves a substantial investment both financially and in building space. Hence, there is much interest to attain the required technical performance with lowest possible investment. The screened room must be designed to provide an environment free of extraneous signals. The suitable type of RF absorber must be chosen to line the entire inner surface of the shielded room in order to simulate a free-space environment with no reflection from the walls, ceiling, and floor. Using a suitable computer simulation tool together with the appropriate model which characterizes the absorber scattering behavior, the chamber geometry may be optimized to achieve the costeffectiveness target. Upon completion of the construction, the performance of the anechoic chamber should be evaluated using the standard acceptance test methods.