Over-the-Air Testing of 5G Millimeter-Wave System with Adaptive Beamforming

In this paper, the sectored multi-probe anechoic chamber (MPAC) is investigated as a promising solution to over-the-air (OTA) testing of 5G millimeter-wave (mmWave) cellular communications. The ability of emulating time-varying power angular spectrum (PAS) is demonstrated, proving its feasibility of OTA testing of mmWave devices with adaptive beamforming. Furthermore, the effect of phase noise of imperfect oscillator on mmWave OTA testing is also investigated.