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	Variable negative Gm technique for RF LC VCO with very large tuning range
	Shi, H. ; Liu, J.H. ; Zhang, G.Y. ; Liao, H.L. ; Huang, R. ; Wang, Y.Y.
	2006
英文摘要	When the tuning range of the RF LC VCO gets very large, the VCO start up condition, VCO oscillation swing and phase noise performance will vary obviously. These issues result from the fact that the equivalent parallel resistance of the LC tank varies a lot due to very large tuning range. In this paper, we propose a variable negative Gm technique to solve these problems. From simulation results, it is found that by using this technique the VCO start up condition at different frequency bands can be independently met. The variation of the VCO oscillation swing can be effectively reduced. The phase noise fluctuations between different bands can be decreased close to the intrinsic level. ? 2005 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/EDSSC.2005.1635227
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/295020]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Shi, H.,Liu, J.H.,Zhang, G.Y.,et al. Variable negative Gm technique for RF LC VCO with very large tuning range. 2006-01-01.

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