Title :
Linearity and power optimization of a microwave CMOS Gilbert cell mixer
Author :
Yu, C. ; Yuan, J.S.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Central Florida Univ., Orlando, FL, USA
Abstract :
The linearity of CMOS has been analyzed using Taylor series. A new method was employed to derive the relationship between the linearity and current consumption of the Gilbert cell mixer. The relationships between the current consumption and noise figure, conversion gain were also explored. The performance was verified via simulation using Cadence SpectreRF. The simulated results biased on measured BSIM3V3 models match the predicted performance well. Optimized design using this technique can result in 16.03 dBn input third-order intercept points (IIP3) and 50% of power in comparison to sub-optimal design simultaneously. One suggested method to calculate the weighted average of the concerned electrical parameters of the CMOS mixers is provided and used to compare overall design performances based on simulations and measurement.
Keywords :
CMOS integrated circuits; circuit optimisation; linearisation techniques; microwave circuits; mixers (circuits); BSIM3V3 models; CMOS mixers; Cadence SpectreRF; Taylor series; conversion gain; current consumption; linearity optimization; microwave CMOS Gilbert cell mixer; noise figure; power optimization; third-order intercept points; Circuits; Design optimization; Energy consumption; Linearity; Predictive models; Semiconductor device modeling; Signal analysis; Switches; Taylor series; Transconductance;
Conference_Titel :
Electron Devices for Microwave and Optoelectronic Applications, 2003. EDMO 2003. The 11th IEEE International Symposium on
Print_ISBN :
0-7803-7904-7
DOI :
10.1109/EDMO.2003.1260061
