A 17-48 GHz Wideband CMOS LNA for 5G Wireless Applications

This paper presents a wideband low-noise-amplifier using current-reused technique with transformer feedback for wideband input/output matching; simultaneously covering two major 5G millimeter frequency bands (28-GHz, 37-GHz). The LNA is based on a 2-stage current-reused common source and common source (CS-CS), which integrated gate-drain transformer feedback for achieving wideband input/output matching. The LNA, which operates from 17 GHz up to 48 GHz with 95% 3-dB bandwidth (17-48 dB) and 74.6% 1-dB bandwidth (21-46 GHz), exhibits maximum gain of 18.7 dB and minimum noise Figure of 4.3 dB. The LNA is designed in a 65-nm CMOS technology of TSMC and only dissipates 16 mW from 1.2-V supply voltage.