A 0.3-7.7GHz Noise-Canceling Low-Noise Amplifier in 55nm CMOS

This paper presents a broadband noise-canceling (NC) low-noise amplifier (LNA). The designed LNA adopts the common-gate (CG) common-source (CS) structure with active feedforward to improve the noise and power gain. Dual complementary pMOS-nMOS configuration is applied to act as the auxiliary amplifier, supplied by the current bleeding circuit. The simulated results show the proposed LNA features a gain of 7.6-10.6dB, noise figure (NF) of 2.84-3.56dB, and a -3dB bandwidth of 0.3-7.7GHz. It consumes 9.3mW from a 1.2V supply and occupies an area of 0.264mm
²
.