130 / 1971-01-01 00:00:00

A 5-6ghz Cmos Receiver Front-end Design

CMOS,front-end,single-differential LNA,Gilbert mixer,image rejection

This paper presents a 5-6GHz CMOS receiver front-end design based on 0.18um CMOS process. The CMOS receiver front-end consists of a single-differential low noise amplifier (LNA), a quadrature down-conversion mixer and a RC polyphase filter. The post-simulation results show the voltage gain is 17.23-20.85dB at 5-6GHz under 3.3V power supply, the NF (noise figure) is 8.46dB, the input matching S11 is under –19.26dB, the input referenced 1 dB compression point (IP1dB) is –14.28dBm and the image rejection ratio is 48.77dBc.