A 5.6-dB Noise Figure, 63–86-GHz Receiver Using a Wideband Noise-Cancelling Low Noise Amplifier With Phase and Amplitude Compensation

In this paper, a 63–86-GHz receiver (RX) is proposed using a wideband noise-cancelling low noise amplifier (LNA) with phase and amplitude compensation circuit. Such phase and amplitude compensation circuit consists of a 4-to-1 asymmetric power-combining transformer and two amplitude adjusting amplifiers, which improves the noise-cancelling ratio of mm-wave LNA. Meanwhile, a wideband active mixer and an absorptive IF amplifier are introduced to provide a reflectionless operation for signal quality improvement. Based on aforementioned structures, a wideband RX is implemented and fabricated using a conventional 40-nm CMOS technology. The measured results show that the RX achieves 22.5-dB conversion gain with 23-GHz 3-dB bandwidth and 50.7-mW power consumption. The minimum NF is 5.6-dB with less than 1.9-dB variation in the whole operation band.