C波段频率源设计及性能分析  

Design and characteristic analysis of a C band frequency generator

作　　者：宋小勇[1] 宋里瑾[1] 王晓远[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《电子设计工程》2012年第24期79-80,83,共3页Electronic Design Engineering

摘　　要：采用锁相环技术设计了一种稳定、低噪声的C波段频率源。建立了锁相环的相位噪声模型并分析影响相位噪声的因素,进行了锁相环低通滤波器的设计。利用软件对环路的稳定性和相位噪声进行仿真,相位裕度在45°以上,环路工作稳定。This paper designs a C band frequency generator with PLL,has high stability, low noise characteristics, establishes the phase noise model of PLL, analyses the factors which affects the factors of PLL＇s phase noise, gives design of low-pass filter of PLL Simulates the stability and phase noise with software, phase margin exceeds 45~, proves the design works stably and has a better phase noise characteristic.

关 键 词：锁相频率源 稳定性 相位噪声 仿真 

分 类 号：TN92[电子电信—通信与信息系统]