An 80 GHz Low-Noise Amplifier Resilient to the TX Spillover in Phase-Modulated Continuous-Wave Radars

An 80 GHz transmitter leakage cancellation circuit is implemented and integrated together with a low-noise amplifier (LNA) as part of a receiver front-end for a phase-modulated continuous-wave radar. The cancellation is achieved by subtracting a copy of the leakage signal from the received one at the output of the LNA. The system incorporates an analog feedback loop to adjust the amplitude of the ...