锁相频率源
一种微波锁相频率源的设计
A Design of Microwave PLL Frequency Source
叶利华
(西科微波通讯有限公司)
Ye Lihua
(Chengdu Seekon Microwave Communication Company)
【摘要】
本文主要介绍一种微波频率源的设计,该源采用100MHZ恒温晶振作为参考源,由Q3236、
VCO和LF共同构成一个锁相环路,在高至2GHZ的频点,实现优于-
90dBc/Hz@1KHz的相噪性能,同时具有极高的频率稳定度和良好的温度稳定性,可在广泛
范围内用作微波信号源。
关键词: 锁相环 频率合成器 相位噪声 频率稳定度
Abstract: In this paper, the design of a frequency source was presented,
in which a 100MHZ constant-temperature crystal oscillator acting as a
reference source. Q3236,VCO and LF all together compose a phase locked
loop. At the hign frequency up to 2GHZ,the source’s phase noise can be
better than -90dBc/HZ@1KHZ, in addition to this, it has hign frequency
stability ……