journal6 ›› 2012, Vol. 33 ›› Issue (4): 76-78.DOI: 10.3969/j.issn.1007-2985.2012.04.017

• Physics and electronics • Previous Articles     Next Articles

Design of CMOS Zero IF Mixer Based on Gilbertl


  1. (1.Yongzhou Hospital of Traditional Chinese Medicine,Yongzhou 425000,Hunan China;2.Hunan EngineeringVocational Technical College,Changsha 410151,China)
  • Online:2012-07-25 Published:2012-09-11

Abstract: The dynamic current injection,the common source node resonance,improved two order linearity performance technology,and CMOS technology being applied,an active folding Gilbert zero IF mixer with the supply voltage at 1.8 V was designed.The circuit simulation showed that at 1 MHz,the SSB noise figure of the mixer was 6.109 dB;at 100 kHz,the SSBNF was 6.71 dB;and at 10 kHz,10.631 dB.Frequency conversion gain was 11.389 dB;input three order intermodulation point was 4.539 dBm.

Key words: Gilbert mixer, zero IF, CMOS process, design

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