A high linearity and low noise shunt resistive feedback UWB LNA

A shunt resistive feedback CMOS low noise amplifier (LNA) using a pi-matching network has been designed in this paper using 0.13μm CMOS technology for applications in ultra-wideband (UWB) systems. Minimum simulated noise figure is of 1.811 dB value and the maximum linearity of 3 dBm with moderate gain of 11.0037 dB is achieved simultaneously, when operated at 1.2 V power supply, with a 3-dB bandwidth ranging from 3.1 GHz to 10.6 GHz.