Plane wave spectra estimation in 2D reverberation chamber

Kamel Nafkha (1) , Elodie Richalot (2) , Stéphanie Mengué (2) , Odile Picon (2)

1 ISI MED - Institut supérieur de l'informatique de Medenine
2 ESYCOM - Electronique, Systèmes de communication et Microsystèmes

In this article, we study the angular plane waves expansion of the standing electric field within a reverberation chamber. For this purpose, we adapted a high resolution Root-MUSIC based method to the context of the reverberation chamber by using a decorrelation procedure to estimate the angles of arrival and complex amplitudes of the planes waves. Using FDTD simulations to get the standing electric field cartographies, we demonstrate, at low frequencies, that directions of arrival are slightly affected by the stirrer rotation whereas the wave amplitudes are strongly perturbed. This result indicates that stirrer works as a plane wave powers tuner.

Keywords: reverberation chamber; directions-of-arrival; MUSIC; mode stirring; FDTD

Domains: Electromagnetism

Kamel Nafkha, Elodie Richalot, Stéphanie Mengué, Odile Picon. Plane wave spectra estimation in 2D reverberation chamber. Electromagnetics, 2011, Electromagnetics, 31 (5), pp.337-348 ⟨10.1080/02726343.2011.579763⟩. ⟨hal-01438581⟩