Determination of the “Quasi-Ideal Reverberation Chamber Minimal Frequency” according to loading

An original method allowing to define from measurements a specific frequency called “Quasi-Ideal Reverberation Chamber Minimal Frequency” (QIRCMF) is presented. The QIRCMF corresponds to the frequency where a mode stirred reverberation chamber is considered as working in a “quasi-ideal regime”. After a definition of what means “quasi-ideal” reverberation chamber, the method is presented. The method is based on 1) the assessment of the electromagnetic field distributions obtained in the working volume (in comparison with the distributions obtained in the ideal model defined in [1]) and 2) the assessment of the correlation of the electromagnetic field over one mode stirrer revolution. Experimental results clearly show that the QIRCMF can be highly reduced by introducing in the mode stirred reverberation chamber but far from the working volume a little amount of loading.