A 23–40-GHz Phased-Array Receiver Using 14-Bit Phase-Gain Manager and Wideband Noise-Canceling LNA

This article presents a 23–40-GHz phased-array receiver (RX) capable of reconfiguring to achieve fine phase step and high gain range. Such RX consists 14-bit phase-gain manager wideband noise-canceling low-noise amplifier (NCLNA). The proposed includes two 7-bit variable amplifiers (VGAs) in radio-frequency (RF) domain, pairs mixers, sign-map (VGSM) circuits intermediate-frequency (IF) domain. can not only provide maximum phase-tuning operation >35-dB variation range but also an improved calibration-free image rejection ratio (IRR) by introducing the dual-mode operation. Based on aforementioned structure, four-element is implemented fabricated 40-nm CMOS technology. whole circuit size 2.2 $\times $ 1.3 mm, while consuming 52 mW per element. measured result shows state-of-the-art minimal noise figure (NF) 3.8 dB, which supports 3 Gb/s, 64-QAM 2.4 256-QAM modulation signal.