Design and analysis of a fully differential CMOS LNA for 3.1-10.6GHz UWB communications systems: article / Noorinani Taib

An ultra-wideband (UWB) 3.1-10.6ghz low noise amplifier adopts cross-coupling commomgate (CG) topology is presented in this paper. Inductive series-peaking is used for the LNA to obtain broadband flat gain in the whole 3.1- 10.6ghz band. Designed in a commercial 0.18/IM CMOS technology, the LNA achieves an nf of 3.1- 4.7 dB, an S11 of less than –l0 dB, an S21 of 10.6 dB and input 3rd interception point (HP3) of -5. IdBm, while the power supply is 1.8v.