A very low IF 2.2GHz receiver for satellite communication

This paper presents a high linearity RF receiver for S band satellite communication in 0.13um CMOS technology. An RF receiver comprises a fully differential low-noise trans-conductor amplifier (LNTA), a quadrature current mode passive mixer with 25% duty-cycle LOs, and a current-driven Active-RC complex band-pass filter/PGA which provides image rejection. The current driven mixer showing a very good 1/f noise and high-linearity performance convert an RF signal to a very low IF signal. The receiver achieves total voltage conversion gain of 105dB with 83 dB Dynamic range, 6dB noise figure, >-15dBm input -1dB compression point, +60dBm input second-order intercept point with calibration, and EVM less than 2%. The receiver dissipates 38mA from a 1.2V supply.