A 0.75V CMOS Low-noise Amplifier for Ultra Wide-band Wireless Receiver

摘要

An ultra-wideband (UWB) CMOS low-noise amplifier(LNA) topology that combines a common-gate stage for input wideband matching with a shunt-peaked folded-cascode configuration for wideband amplifying stage is presented in this paper. The proposed UWB LNA achieves simulated power gain>10 dB from 3.3 to 10.1 GHz with only 0.75V supply using 0.18 1m CMOS process. Its broadband matching is better than-10 dB for S11 and S22 from 3.1 to 10.6 GHz, and an average noise figure is about 4 dB, while consuming 11.5mw with output buffer amplifier.