捷变微波频率合成器的设计  

Design scheme of an agile microwave frequency synthesizer

作　　者：梁强[1,2] 杨永跃[3] 陈仁北[1] 

机构地区：[1]中国电子科技集团公司第41研究所 [2]合肥工业大学仪器科学与光电工程学院合肥230009 [3]合肥工业大学仪器科学与光电工程学院

出　　处：《国外电子测量技术》2006年第8期39-42,共4页Foreign Electronic Measurement Technology

摘　　要：本文讨论采用DDS+PLL的捷变微波频率合成器的设计方案。该方案利用DDS的快速频率切换和PLL的环路跟踪能力实现微波信号的快速跳频,在PLL反馈回路的设计上采用分频和混频的工作方式,电路简单而且保证输出信号具有较高的频谱纯度。文中详述该合成器的主要技术指标和各种影响因素,并给出相应的工程计算方法和最终的测试结果。In this paper, the design scheme of an agile microwave frequency synthesizer which adopts DDS-FPLL is discussed. The scheme used the fast frequency switch ability of DDS and the loop trace ability of PLL to realize fast jump of microwave signal. The design of PLL feedback loop adopted the working mode of divider and mixer. The circuit is simple and the output signal has a higher purity of frequency spectra. Main technical specifications and some influential factors of this synthesizer are described in detail, and the corresponding project calculations are listed. Further more, the test results are given.

关 键 词：微波 频率合成 

分 类 号：TN74[电子电信—电路与系统] TU432[建筑科学—岩土工程]