A 26–32-GHz Dual-Polarization Receiver Front-End With Rapid-Response Mixed-Signal Polarization Alignment for Ultrareliable Low-Latency Communications

This work presents a 26–32-GHz dual-polarization receiver (RX) with a novel autonomous polarization alignment technique in the front-end. The system employs an mm-Wave dual-polarization RX front-end with an IF analog/mixed-signal computation unit to achieve fast dual-polarization misalignment correction with no digital backend computation for mobile, dynamic, and ultrareliable low-latency communications (URLLCs). It is implemented in the GlobalFoundries 45RFSOI CMOS process occupying 5.67 mm
²
total area. It has a wideband
$S_{11}$
response from 25.5 to 34.5 GHz and achieves an ultrarapid
$\mu $
-second polarization mismatch correction time. Polarization leakage suppression of up to 35 dB is measured with the RX gain of 28 dB and NF of 5.8 dB.