A 6 mW low noise amplifier for 3.1–10.6 GHz UWB application

This paper presents a single stage low-noise amplifier (LNA) using cascode topology for low-power UWB applications. Resistive feedback is used to obtain large bandwidth. The LNA achieves peak gain of 11.8 dB and noise figure varying from1.72 – 3.62 dB within the band of 3.1 – 10.6 GHz. The LNA uses supply of 2 V while consuming only 6 mW of dc power. The technology used for design is 0.25 µm IHP SiGe BiCMOS which employs Heterojunction Bipolar Transistor (HBT). The output 1 dB compression point and input IP3 for LNA are −23 dBm and −12.48 dBm respectively.