A low-power current-reuse LNA for ultra-wideband wireless receivers from 3.1 to 10.6 GHz

Abstract

We present an ultra-wideband 3.1-10.6 GHz low-noise amplifier which uses a two-stage current-reuse structure to reduce the power. Fabricated in a 0.18 mu m CMOS process, the IC prototype achieved a power gain of 9.3 dB, a noise figure (NF) of < 5.6 dB, an input match of < -8 dB over the band, while consuming only 9.4 mW.