Filtering Technique to Lower Phase Noise for 2.4GHz CMOS VCO

摘要：

With a simple analysis of phase noise in voltage-controlled oscillators,a 2.4 GHz CMOS LC VCO is designed in 0.18μm CMOS technology. The proposed VCO uses three filters to remove noise from the tail current source,the reference current source,and the output node of VCO core. The VCO has a tuning range from 2.29 GHz to 2.59 GHz,while the VCO core draws 3 mA of current from 1.8 V power supply. The achieved phase noise is -138 dBc/Hz at 3 MHz offset and -103.1 dBc/Hz at 100 kHz offset frequency.

关键词： low-noise oscillators voltage-controlled oscillators phase noise filters CMOS

作者: Wenhao Yan Chan Hyeong Park

作者单位: Department of Electronics and Communications Engineering,Kwangwoon University,Seoul 139-701,Korea

会议类型: 国际会议

会议名称: 9th International Conference on Solid-State and Integrated-Circuit Technology(第9届固态和集成电路国际会议)

会议地点: 北京

会议语种:英文

页码: 1649-1652

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）