RF LNA with Simultaneous Noise-Cancellation and Distortion-Cancellation for Wireless RF Systems

Abstract

In this paper, the design of an RF LNA with simultaneous noise-cancellation and distortion-cancellation is presented. The proposed LNA simulation results show a S21 gain of 15.4 dB and total noise Figure cancellation of 0.45dB with a circuit noise Figure NF of 1.6 dB and S12 reverse isolation of 38.2 dB at frequency 2.4 GHz. The simulation results show a 12 dBc of IM3 distortion-cancellation and 6 dB IIP3 improvement with power consumption of 9.5 mA. Proposed RF LNA simultaneous cancellation of noise and distortion improves circuit noise Figure and linearity and in turn improves the overall wireless RF system dynamic range.