Over the air MIMO channel model validation

In the over the air (OTA) test for the multi-antenna devices, the validation of the multi-input multi-output (MIMO) channel model is critical which ensures that the device is tested under the desired channel environment. In this paper, we perform the validation for some of the key parameters in the MIMO channel, such as the power delay profile and the Doppler spectrum spread, within a multi-probe anechoic chamber. The measured results of these parameters correspond well with the theoretical values, which show that the channel environment in the chamber is qualified for the OTA test of multi-antenna devices.