Tankielun, Adam

Increased capacity in 5G mobile communications requires rolling out massive MIMO base stations with network and mobile terminals at both sub- 6 GHz and mmWave frequencies. Dynamic beamforming and the absence of RF test ports on the devices being tested make over-the-air (OTA) measurement pivotal to 5G deployment Fortunately, OTA testing solutions employing software and hardware near-field transformations are meeting the challenges.