Title :
An adaptive, wideband SiGe image reject mixer for a self-healing receiver
Author :
Saha, Prabir K. ; Howard, Duane ; Shankar, Subramaniam ; Diestelhorst, Ryan ; England, Troy ; Cressler, John D.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
A wideband (6-20 GHz) SiGe adaptive image reject mixer with an IF bandwidth of more than 1.8 GHz is presented. The mixer can be “self-healed” to deliver consistent performance across band by nullifying the effects of process variations, environmental changes or aging and can be adapted to different specifications. A conversion gain greater than 15 dB, an image rejection ratio (IRR) exceeding 35 dB and an output 1-dB compression point greater than 10 dBm were obtained in measurement. An automated self-healing procedure is shown to be effective for improving the measured performance of the mixer. The mixer was fabricated in a 150 GHz peak fT 200 nm SiGe BiCMOS process and consumes 215 mA of current operating off a 4 V rail.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; microwave mixers; BiCMOS; SiGe; adaptive image reject mixer; automated self-healing; current 215 mA; frequency 150 GHz; frequency 6 GHz to 20 GHz; image rejection ratio; self-healing receiver; size 200 nm; voltage 4 V; Current measurement; Gain; Generators; Linearity; Mixers; Noise; Radio frequency; Image reject mixer; SiGe; adaptive circuits; self-healing; tunable mixer;
Conference_Titel :
Bipolar/BiCMOS Circuits and Technology Meeting (BCTM), 2011 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-61284-165-6
DOI :
10.1109/BCTM.2011.6082757
