A Low Noise,High Linearity CMOS Receiver for 802.11b WLAN Applications
应用于802.11b无线局域网的低噪声高线性度的CMOS射频接收机

A 2.4GHz monolithic CMOS receiver with direct-conversion architecture is presented.This quadrature receiver is designed for 802.11b wireless LAN applications at the maximum data rate of 11Mbps as a low-cost solution.Five key blocks,i.e.,a low noise amplifier(LNA),a down-conversion mixer,a variable gain amplifier,a low pass filter,and a DC-offset cancellation circuit,are designed based on system design and low noise high linearity considerations.The necessary auxiliary circuits are also included.Fabricated i...