A Dual-Mode 24-32 GHz 4-Element Phased-Array Transceiver Front-End with SSA Beamformer for Autonomous Agile Unknown Signal Tracking and Blocker Rejection within <0.1 us and 21.3%/15% Transmitter Peak/OP1dB PAE

The large-scale deployment of millimeter-wave (mm-wave) 5G is proceeding rapidly [1] -[4]. Mm-wave phased-arrays rely on large array sizes to improve the link budget and spatial selectivity. Many future mm-wave links in 5G need to be established in congested, highly dynamic environments, such as vehicle-/drone-based links, which require agile, precise beamforming/tracking and spatial blocker suppression to achieve high link reliability and low latency. Conventional phased-arrays rely on back-end digital signal processing (DSP) to perform beamforming and signal tracking at the expense of extra power consumption and system complexity with a typical response time of 45ms [1] -[4], which does not meet the 5G requirement of less than 1ms latency -[4].