A novel CMOS low-phase-noise VCO with enlarged tuning range

摘要：

A low phase noise,large tuning range VCO is implemented using 0.25urn CMOS process. The new method,which can enlarge the tuning range and improve phase noise of CMOS VCO,is presentedIn This paper. It combines the dominant parallel resonance using standard passive on-chip spiral inductors and the additional series resonance using active inductors consisted of MOSFET,resistor and capacitor. Without others parameters variation,the general VCO can form the proposed VCO by adding two resistors and two capacitors; and the proposed VCO has the same power consumption as the general VCO,which is 10mW in this design. As for the performance,the tuning range of the proposed VCO is improved 6％ and the achieved highest frequency is improved about 13％. Also,it is the most important that the phase noise is improved up to 15dB at most.

关键词： VCO CMOS phase noise tuning range active inductor

作者: Haiyong Wang Nanjian Wu Guoliang Shou

作者单位: Beijing LHWT Microelectronies Inc.Beijing,China Institute of Semiconductors,Chinese Academy of Sciences,Beijing,China

会议类型: 国际会议

会议名称: 2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)

会议地点: 南京

会议语种:英文

页码: 570-573

在线出版日期: 2008-04-21（万方平台首次上网日期，不代表论文的发表时间）