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Why a Reverberation Chamber Works at Low Modal Overlap

Florian Monsef 1
1 DRE - Département de Recherche en Electromagnétisme ; EMG - Département Electromagnétisme - L2S
L2S - Laboratoire des signaux et systèmes : 1289, SUPELEC-Campus Gif
Abstract : The physical parameter well adapted to assess the degree of overmodedness of a reverberation chamber (RC) is the number $M_M$ of modes overlapping in a mode bandwidth. The lowest usable frequency of an RC often corresponds to a low modal overlap of one or two modes. Notwithstanding, in spite of this poor number of modes the RC still works. We show, using Monte Carlo simulation, that the number of modes must, in fact, not be restrained to $M_M$ and that the number of modes contributing to the field statistics can be, even at low modal overlap, somewhat larger than expected.
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Submitted on : Wednesday, December 19, 2012 - 5:33:06 PM
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Florian Monsef. Why a Reverberation Chamber Works at Low Modal Overlap. IEEE Transactions on Electromagnetic Compatibility, Institute of Electrical and Electronics Engineers, 2012, 54 (6), pp.1314-1317. ⟨10.1109/TEMC.2012.2222028⟩. ⟨hal-00767388⟩



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