Estimation of average Rician K-factor and average mode bandwidth in loaded reverberation chamber
Artikel i vetenskaplig tidskrift, 2011

A well-stirred reverberation chamber without noticeable direct coupling between the transmitting and receiving antennas emulates an isotropic Rayleigh fading environment and can therefore be used for qualitative over-the-air (OTA) measurements of wireless devices with small nondirective antennas. By loading such a chamber, it is possible to generate a Rician environment. This letter introduces an average Rician K-factor that describes the reverberation chamber better than the normal K-factor, in particular when the chamber is provided with platform and polarization stirring. This letter shows how to estimate this average K-factor. The average mode bandwidth also changes by loading the chamber. While the average K-factor determines uncertainty, the average mode bandwidth determines the channel coherence bandwidth. They are therefore the two most important parameters for the characterizations of a reverberation chamber.


Chen Xiaoming

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

Per-Simon Kildal

Chalmers, Signaler och system, Kommunikation, Antenner och Optiska Nätverk

Szhau Lai

Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik

IEEE Antennas and Wireless Propagation Letters

1536-1225 (ISSN) 15485757 (eISSN)

Vol. 10 1437-1440 5730210


Informations- och kommunikationsteknik


Elektroteknik och elektronik



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