A base station correlation-controlled bilateral emulator for MIMO-OTA

This paper presents a bilateral fading emulator for MIMO-OTA testing with a function of controlling the correlation of base station. On the basis of the Jakes theory, a methodology for achieving the spatial correlation of a base station antenna by setting the initial phases of scatterers in the two-dimensional channel model is introduced. The experimental results show that the designed correlation coefficient of an uplink channel agrees well with the theoretical value, confirming the effectiveness of the proposed method. Using this method, the combined evaluation of a handset MIMO antenna in considerations of both uplink and downlink channel properties can be realized.