Title :
CMOS 138 GHz low-power active mixer with branch-line coupler
Author :
Dong-Hyun Kim ; Jae-Sung Rieh
Author_Institution :
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
A 138 GHz down-conversion mixer with a branch-line coupler has been developed based on a 90 nm CMOS technology. The fabricated mixer shows a differential conversion gain of 3.7 dB with the mixer core drawing a current 0.66 mA from a 1.2 V supply. The 1 dB gain compression point is estimated to be larger than 6 dBm. The mixer occupies 0.61 0.62 mm2 of chip area excluding pads.
Keywords :
CMOS integrated circuits; millimetre wave mixers; CMOS low-power active mixer; branch-line coupler; current 0.66 mA; differential conversion gain; frequency 138 GHz; gain 1 dB; gain 3.7 dB; mixer; size 90 nm; voltage 1.2 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.0402
