CMOS I/Q Subharmonic Mixer for Millimeter-Wave Atmospheric Remote Sensing
A compact second harmonic 180 GHz I/Q balanced resistive mixer is realized in a 32-nm SOI CMOS technology for atmospheric remote sensing applications. The MMIC further includes two on-chip IF amplifiers at the mixer's I and Q channels. A conversion gain of +8 dB is achieved with 74 mW of dc power consumption using a 1.2 V supply. The measured IF frequency range is from 1 to 10 GHz. The mixer achieves a 20 dB imagerejection (IR) ratio with an LO input power of +4 dBm. The chip size is 0.75 mm^2 including probing pads.
© 2016 IEEE. Manuscript received September 22, 2015; revised December 22, 2015; accepted January 10, 2016. Date of publication March 22, 2016; date of current version April 6, 2016. This work was supported by the Academy of Finland through the FAMOS project and Postdoctoral research post and in part by the Jet Propulsion Laboratory (JPL), California Institute of Technology, under a contract with the National Aeronautics and Space Administration (NASA).