An Improved Current Bleeding Mixer Based on CMOS Technology
CMC), 2010 International Conference（2010）
Abstract
An improved current bleeding CMOS mixer is designed in this paper. The conversion gain of the mixer is increased and the flicker noise of the mixer is reduced by inserting the inductor to form resonant circuit with parasitic capacitors of the source ports of the switch transistors in Gilbert mixer. The mixer is designed by using SMIC 0.18 um CMOS process. The simulated results show that the mixer proposed has a 1.76 dB increase of conversion gain, 2.1 dBm improvement of IIP3, 0.5 dB decrease of noise figure with local power of -3 dBm as compared with the mixer before inserting the inductor.
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Key words
cmos integrated circuits,gilbert mixer,um cmos process,source ports,inductor,integrated circuit modelling,parasitic capacitor,mixers (circuits),noise figure,simulated result,current bleeding,improved current bleeding mixer,capacitors,cmos technology,switch transistors,current bleeding cmos mixer,improved current bleeding cmos,integrated circuit noise,integrated circuit design,resonant circuit,semiconductor process modelling,flicker noise,parasitic capacitors,conversion gain,cmos,transistors,complementary metal-oxide-semiconductor,inductors,local power,circuit simulation,switched capacitor circuits,radio frequency,complementary metal oxide semiconductor,switches,capacitance,rlc circuits
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