A CMOS Wideband Low Noise Mixer for LTE Application

This paper presents a wideband CMOS down-conversion mixer for Long Term Evolution applications. The Gilbert cell mixer, which is designed to operate from 0.7 to 2.7 GHz range, employs a capacitive cross-coupled common-gate (CCC-CG) in combination with a current-bleeding PMOS common-source topology as a transconductance stage for wideband input matching, higher gain, and the noise and distortion cancellation. Inter-stage peaking inductors are also adopted for bandwidth extension. Implemented in a 0.13 um CMOS, measurements show the conversion gain of 27 dB, double side-band noise figure of 3.3 dB, and maximum IIP3 of +7 dBm while dissipating 5.6 mA from 1.2 V supply.