A 17.3-mW 0.46-mm2 26/28/39GHz Phased-Array Receiver Front-End with an I/Q-Current-Shared Active Phase Shifter for 5G User Equipment

This paper presents a 26/28/39GHz millimeter-wave phased-array receiver front-end (RXFE) including two parallel paths combined at the output. Each path consists of a T/R switch, a large dynamic range low noise amplifier (LNA), and an I/Q-current-shared active phase shifter. The RXFE achieves minimum NF of 4.3dB/5.6dB, maximum IP1dB of 0dBm/-1.3dBm, and best EVM of −33.1dB/-29.6dB for 26/28GHz band and 39GHz band, respectively, while consuming power of 17.3mW with 1.1V supply. The chip was fabricated in 28nm CMOS FD-SOI process and the RXFE occupied an area of 0.46mm2 per channel.