OTA Evaluation of a K-Band Receive Phased-Array Antenna-in-Package for SATCOM on the Move User Terminal

This paper presents a 4×4 K-band active receive phased-array antenna-in-package (AiP) with polarization control as a unit cell for the SATCOM-on-the-Move (SOTM) user terminal downlink radio system. The proposed active AiP is modular and scalable. Over-the-air (OTA) tests are executed for the evaluation of the performance. The fabricated AiP provides 34 dB of active gain at the boresight and consumes 1.16 W of DC power when all the ports are activated. The RF channel gain and noise figure of the beamformer ICs embedded in the AiP are also estimated using the OTA test measurement results.