Phase Noise Reduction of Charge Pump PLLs by Using a New Approach

摘要：

This paper analyses phase noise properties of the second order charge-pump phased locked loops (PLLs) in order to use in MTI radars. The effect of each building block on the total output phase noise of PLL is demonstrated by mathematical relationship and graphical treatment. Phase noise transfer functions are analyzed by the superposition theory and linear operation of PLL. The output phase noise due to each source is correctly predicted by calculating the relation between an input power spectrum density and its closed-loop transfer function. There exist four noise sources which are generated by reference oscillator, voltage-controlled oscillator, filter and main divider. We will analysis these noise sources in a linear model of PLL.

作者: S. Samadi B. Zakeri M. Zahabi

作者单位: Faculty of Electrical Engineering,Babol Noshirvani University of Technology, Babol, Iran

会议类型: 国际会议

会议名称: 2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)

会议地点: 成都

会议语种:英文

页码: 1949-1952

在线出版日期: 2011-10-24（万方平台首次上网日期，不代表论文的发表时间）