Ka波段频率源建模分析与设计  

Analysis and design of Ka-band frequency source modeling

作　　者：江润东 姚金杰[1] 姬娜娜 李嘉浩 Jiang Rundong;Yao Jinjie;Ji Nana;Li Jiahao(Shanxi Key Laboratory of Signal Capturing&Process,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学信息探测与处理山西省重点实验室,山西太原030051

出　　处：《电子技术应用》2021年第7期12-16,共5页Application of Electronic Technique

基　　金：国防基础科研项目(JCKY2017208B009)。

摘　　要：利用锁相环与多次倍频的方式设计了一个Ka波段的用于小型化交会参数探测单元的频率源。该频率源输出频率为36 GHz,输出功率大于15 dBm。在设计时使用数学建模的方法对锁相环各个部分进行建模,然后得到系统的传递函数,通过对闭环系统的系统函数分析,得到能够使系统稳定工作的系统参数。最后使用裸芯片以微组装的形式加工到RO4350和RO5880基板与腔体上,并完成测试。测试结果表明,使用数学建模的方式能够得到稳定工作频率源。In this paper,a Ka-band frequency source for miniaturization of rendezvous parameter detection unit is designed by using PLL and multiple frequency multiplication.The output frequency of the frequency source is 36 GHz and the output power is higher than 15 dBm.In this design,the mathematical modeling method is used to model each part of the PLL,and then the transfer function of the system is obtained.Through the analysis of the system function of the closed-loop system,the system parameters that can make the system work stably are obtained.Finally,dies are fabricated on the substrate and cavity of RO4350 and RO5880 in the form of micro assembly,and then be tested.The test results show that the stable working frequency source can be obtained by using mathematical modeling.

关 键 词：锁相频率源 数学建模 闭环特性 

分 类 号：TN952[电子电信—信号与信息处理]