一种改进型X波段双环锁相频率合成器的设计

Design of An Improved X Band Double Phase-locked Loop Frequency Synthesizer

介绍了双环锁相的基本原理,分析了传统的频率合成方法,提出了一种改进型双环锁相频率合成器的设计方案,采用低相噪、低杂散的小数分频锁相技术,并通过优化电路结构设计,实现了比传统双环锁相频率合成器更优的性能。该设计方案简单实用,已在实际工程中得到了应用,具有一定的推广价值。

This paper introduces the basic principle of double phase-locked loop,analyzes the traditional frequency synthesizing method,brings forward a design scheme of improved double phaselocked loop frequency synthesizer,uses the fractional frequency dividing phase-locked technology with low phase noise and low stray to realize better performance than traditional double phaselocked loop frequency synthesizer by optimizing the circuit structure design.This design scheme is simple and practical,and has been applied in the actual engineering,is of definite extensible value.