Testing MIMO systems with coupled reverberation chambers: A wideband channel model

In this paper, a new testbed composed of two reverberation chambers coupled through a waveguide is presented. A new wideband channel model for this testbed is emphasized. The theory about the waveguide coupling the two chambers is first reminded leading to a full description of the channel model. This model includes all the characteristics of the environment like the possibility to reproduce the number of degrees of freedom in the channel and the correlation between antennas. Some simulation results are presented showing a good agreement with theoretical and measurements results.