Title :
CMOS RF mixer no-linearity design
Author :
Li, Qiang ; Zhang, Jinlong ; Li, Wei ; Yuan, Jiann S.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Central Florida Univ., Orlando, FL, USA
Abstract :
Design equations for the 1 dB compression point and 3rd-order intermodulation point as a function of circuit and technology parameters are derived using a Volterra series expansion. Linearity analysis for both single and double-balanced CMOS Gilbert mixers is examined. The transconductance stage using inductive degeneration is more linear than that using capacitive or resistive degeneration, and the single-balanced mixer is more linear than the double-balanced one at the same bias current and transconductance. The analytical predictions are verified with the Cadence SpectreRF circuit simulation and experimental data. Good agreement between the model predictions and experimental data is obtained
Keywords :
CMOS integrated circuits; MMIC mixers; Volterra series; circuit CAD; circuit simulation; integrated circuit design; integrated circuit measurement; nonlinear network synthesis; CMOS RF mixer no-linearity design; Cadence SpectreRF circuit simulation; Volterra series expansion; bias current; capacitive degeneration; circuit parameters; compression point; design equations; double-balanced CMOS Gilbert mixers; double-balanced mixer; inductive degeneration; intermodulation point; linearity analysis; model predictions; resistive degeneration; single-balanced CMOS Gilbert mixers; single-balanced mixer; technology parameters; transconductance; transconductance stage; Circuit simulation; Linearity; Narrowband; Noise figure; Nonlinear equations; Radio frequency; Semiconductor device modeling; Taylor series; Transceivers; Transconductance;
Conference_Titel :
Circuits and Systems, 2001. MWSCAS 2001. Proceedings of the 44th IEEE 2001 Midwest Symposium on
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-7150-X
DOI :
10.1109/MWSCAS.2001.986310
