Radio Frequency Domain Calibration for Phased-Array Transmitter and Receiver Front-Ends With Improved Phase and Gain Accuracy
K-/Ka-band phased-array transmitter (TX) and receiver (RX) front-ends for satellite communication (SATCOM) with phase and gain control calibration are proposed. The calibration of a quadrature all-pass filter (QAF) for precise phase control in the phase shifter (PS) is based on a novel compensation transistor serving a...