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

• 物理与电子 • 上一篇    下一篇

吉尔伯特型CMOS零中频混频器的设计

  

  1. (1.永州市中医院,湖南 永州 425000;2.湖南工程职业技术学院,湖南 长沙 410151)
  • 出版日期:2012-07-25 发布日期:2012-09-11
  • 作者简介:张武龙(1972-),男,湖南东安人,湖南省永州市中医院技师,主要从事电子电路设计与检测研究;周少华(1963-),男,湖南祁阳人,湖南工程职业技术学院副教授,硕士,主要从事微电子器件及系统电路研究.
  • 基金资助:

    湖南省科技厅科技计划资助项目(2011FJ4172);湖南省教育厅科学研究资助项目(10C0109)

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

摘要:利用动态电流注入、共源节点谐振、改善2阶线性度性能技术,应用CMOS工艺,利用Candence设计了一款1.8 V电源电压折叠式Gilbert型有源零中频混频器.电路仿真结果显示,混频器在1 MHz,100 kHz,10 kHz处的单边带噪声系数为6.109,6.71,10.631 dB,频率转换的增益为11.389 dB,输入的3阶交调点为4.539 dBm.

关键词: 吉尔伯特型混频器, 零中频, CMOS工艺, 设计

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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