Reverberation chamber modeling using FDTD

This paper gives a definition of the uniformity of the reverberation chamber that is similar to the uniformity area as defined for the anechoic chamber, but is a volume instead of a plane. In this definition, the uniformity volume has 16 points in the space. The uniformity of the chamber is mathematically expressed in terms of both electric field amplitude and angle in this paper. Both parameters are used to define the criterion for uniformity evaluation. A three-dimensional reverberation chamber model is presented based on the finite-difference time-domain (FDTD) technique that is used to analyse the uniformity of reverberation chambers. The simulation reveals that the maximum deviations of max, min, and mean of electric field amplitude are about 3 to 4 dB and grouped angle deviation is about 3% in the case we studied