Recent advances on OTA testing for 5G antenna systems in multi-probe anechoic chamber setups

Over-the-air (OTA) testing is seen as an essential method for evaluating 5G antenna systems, since conventional cable testing are no longer applicable. In the paper, we discussed the similarities and discrepancies of OTA testing in the multiprobe anechoic chamber (MPAC) setups for 4G user equipment (UE) antenna systems and massive multiple-input multiple-output (MIMO) base station (BS) antenna systems. Further, recent progress on OTA testing for 5G antenna systems in the MPAC setups are summarized.