A 1.5 V 900 MHz CMOS CURRENT FOLDED-MIRROR MIXER

摘要

A CMOS down-conversion mixer using current folded-mirror technique is demonstrated in this paper. Apart from the low voltage operation, the current folded-mirror mixer has a similar performance in gain, linearity, and frequency performance compared with a traditional high voltage mixer. A prototype mixer was implemented in an AMS_(~R) 0.6-micron CMOS technology. The measured 1-dB compression point is -3 dBm, IIP_3 is 1 dBm. and the conversion gain is -2.5 dB at an input RF frequency of 900 MHz. The IC consumes 7.5 mW from a 1.5 V supply.