Design of a 2.4-GHz differential low noise amplifier using 180nm technology

Abstract

A differential input differential output low noise amplifier is proposed here. The designing is done using UMC 180nm CMOS RF process. The low noise amplifier (LNA) circuit operates at 2.4-GHz frequency. This paper presents the LNA with inductive degenerated topology using cascoded CMOS architecture in order to provide the improved gain, linearity and better isolation. It provides a better stability. The simulation and analysis is performed using Cadence Virtuoso IC tool. This design exhibits a gain of 12.68 dB, input return loss (S11) of −13.5 dB, reverse isolation (S12) of −33.85 dB and S22 equals to −10 dB. It produces a Noise Figure of 3.14 dB. The circuit operates at supply voltage of 1.8V.