Design of a CMOS LNA for the upper band of UWB receivers

A two-stage LNA for the upper band of the Ultra Wide Band (6-10.6 GHz) receivers is introduced in this paper. The proposed LNA is composed of a conventional Cascode amplifier in the first stage and a common-source amplifier in the second stage. The common-source amplifier utilizes both NMOS and PMOS transistors, which increase the linearity. This LNA is simulated based on a 1.8 V, 0.18 μm CMOS technology. The average of NF and IIP3 parameters are about 2.8 dB and -1 dB, respectively. S21 is about 13 dB with a variation less than 1 dB. The power dissipation of the LNA is about 16.5 mW.