Finite element analysis of reverberation chambers: A two-dimensional study at cutoff

A two-dimensional analysis of reverberation chambers is performed at cutoff. The structure considered is lossless and corresponds to an infinite Q chamber. The concept of frequency stirring is used to generate field data for a discrete set of modes and the resulting statistics are analyzed. The total field and power are examined for TE modes. This analysis yields statistics similar to the expected reverberation chamber statistics for the fields. Preliminary data for mechanical stirring is also presented. The two-dimensional model may yield considerable insight into the nature of the loss experienced on real airframes, and also provide an error measure on data in the non-ideal mode-stirred chamber.