Comparative Study of Active Inductor-Based Low-Noise Amplifiers

This paper presents the design of CMOS low-noise amplifier (LNA) using various types of active inductors. The inductive source degeneration topology for LNA is adopted, and three active inductors such as basic active inductor, Weng-Kuo active inductor, and regulated cascade active inductor are employed for the performance analysis. Further, the comparison of LNA characteristics such as gain and noise figure is drawn among all the designed LNAs. All the simulations have been carried out using 45-nm CMOS technology node.