An Inductor-less Sub-mW Low Noise Amplifier for Wireless Sensor Network Applications

This paper presents a Sub-mW differential Common-Gate Low Noise Amplifier (CGLNA) for ZigBee standard. The circuit takes the advantage of shunt feedback and Dual Capacitive Cross Coupling (DCCC) to reduce power consumption and the bandwidth extension capacitors to support 2.4 GHz ISM band. An amplifier employing these techniques has been designed and simulated in 0.18 mm TSMC CMOS technology. The Simulation results show a gain of 18.2 dB, an IIP3 of 4.32 dBm and a noise figure of 3.38 dB at 2.4 GHz. The proposed LNA consumes only 967 mW from a 1-V supply. & 2015 Elsevier B.V. All rights reserved.