Design of Multi-standard Low Noise Amplifier based on Active Inductor

Abstract

A current-controlled multi-standard low-noise amplifier (LNA) has been proposed based on the active inductor. The novel folded-cascode circuit topology with feedback resistance ensures good quality factor and linearity of the active inductor. The current-controlled inductance makes the LNA work well with various wireless communication standards such as TD-SCDMA, CDMA2000, WCDMA and Bluetooth. Simulation results indicate that the multi-standard LNA designed using 0.18 μm CMOS technology has a high gain (>11.6 dB), low noise figure (<1.851 dB), good input impedance matching (<-54.01 dB) and stable output impedance matching (<-26.78 dB). Keywords-multi-standard; LNA; active inductor; currentcontrolled;