低成本C频段宽带变频锁相源的设计与实现  

Design and Fabrication of C Band Low Cost Frequency-variable Broad Band Phase Locked Local Oscillator Source

作　　者：龙戈农[1] 麻来宣[1] 水现辉 

机构地区：[1]空军工程大学导弹学院 [2]解放军95037部队

出　　处：《电讯技术》2009年第9期63-66,共4页Telecommunication Engineering

摘　　要：选取具有数字接口、高度集成的锁相环（PLL）电路,实现了C频段5.4-6.4 GHz带宽内输出频率数控可变、步进间隔为50 kHz的宽带集成锁相源的设计方案。按照该设计方案制作完成了具体的电路,经过实验测量,验证了该电路具有较宽的工作带宽、较高的噪声抑制度,系统整体性能良好,便于数字控制,成本较低。By selecting highly integrated phase locked loop（PLL） circuit with digital interface,a design scheme of C band broad band integrated frequency- variable phase locked source is realized,the output bandwidth and output frequency interval of which are 5.4 - 6.4 GHz and 50 kHz respectively. Then,a practical circuit is made according to the design scheme. Experiment shows the circuit has many advantages such as wider bandwidth, higher noise suppression, better whole system performance,more easily to be controlled by digital circuit,and lower cost.

关 键 词：锁相环 本振源 频率数控可变 噪声抑制度 宽带 

分 类 号：TN742[电子电信—电路与系统]