Broadband method of moment simulation and measurement of a medium-sized reverberation chamber

In this paper, we present three-dimensional full-wave simulations of the electromagnetic fields inside a medium-sized reverberation chamber. For the simulation, a method of moments based numerical approach was employed in the frequency domain. A short synopsis of the computational challenges particular for reverberation chambers is described and a detailed overview on the modeling procedure of the chamber is given. The electric and magnetic fields inside the chamber as well as the current density on the walls, the stirrer, and the antennas are computed and visualized. Different excitations of the chamber are simulated and parameters such as the rotational stirrer position or the influence of small geometric details are investigated. For the purpose of validation, extensive measurements inside a real reverberation chamber were taken and compared against the simulated results.