Controlling the state of a reverberation chamber by means of a random multiple-antenna stirring

Andrea Cozza (1) , Wee Jin Koh (2) , Yong Yeh Tan (2) , Yew Seng Ng (2)

1 SUPELEC-Campus Gif
2 DSO Laboratories

In this paper we introduce a novel technique based on the random excitation of several antennas. As opposed to previous attempts at this approach, the random signals are correlated by means of a pre-conditioning filter, in order to increase the number of accessible degrees of freedom and optimize the covariance matrix of the field measured in the chamber. A dramatic improvement is observed at those frequencies where standard mechanical stirrers fail.

Mots clés: Cavities; stochastic fields; test facilities

Domaines: Electromagnétisme

Andrea Cozza, Wee Jin Koh, Yong Yeh Tan, Yew Seng Ng. Controlling the state of a reverberation chamber by means of a random multiple-antenna stirring. 2012 Asia-Pacific Symposium on Electromagnetic Compatibility, May 2012, Singapore, Singapore. ⟨hal-00700928⟩