5.2 GHz 3.3V I/Q SiGe RF transceiver

Abstract

A 5.2 GHz I/Q RF transceiver using a 0.5-μm SiGe BiCMOS technology is designed and measured. The receiver exhibits a 11.7 dB down-conversion gain, a DSB noise figure of 7.5 dB, an input IP3 of -11.2 dBm, and an amplitude imbalance of 0.33 dB for a 300 MHz IF. For the transmitter an up-conversion gain of 14.7 dB, an output 1-dB compression point of -23 dBm, an amplitude imbalance of 0.5 dB, and a 7 GHz 3 dB bandwidth were measured. The power consumption is 122mW for the receiver and 114 mW for the transmitter at 3.3V power supply.