An Improved Current Bleeding Mixer Based on CMOS Technology

Author

Cheng, Zhiqun ; Zhou, Pengfei ; Li, Jin ; Zhang, Sheng

Author_Institution

Key Lab. of RF Circuit & Syst., Hangzhou Dianzi Univ., Hangzhou, China

Volume

3

fYear

2010

fDate

12-14 April 2010

Firstpage

128

Lastpage

131

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.

Keywords

CMOS integrated circuits; capacitors; circuit simulation; flicker noise; inductors; integrated circuit design; integrated circuit modelling; integrated circuit noise; mixers (circuits); semiconductor process modelling; transistors; CMOS technology; Gilbert mixer; complementary metal-oxide-semiconductor; conversion gain; current bleeding CMOS mixer; flicker noise; inductor; local power; noise figure; parasitic capacitors; resonant circuit; source ports; switch transistors; 1f noise; CMOS process; CMOS technology; Circuit simulation; Hemorrhaging; Inductors; RLC circuits; Switched capacitor circuits; Switches; Switching circuits; CMOS; Gilbert mixer; current bleeding; flicker noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Mobile Computing (CMC), 2010 International Conference on

Conference_Location

Shenzhen

Print_ISBN

978-1-4244-6327-5

Electronic_ISBN

978-1-4244-6328-2

Type

conf

DOI

10.1109/CMC.2010.207

Filename

5471541