一种分时工作Ku/Ka频段微波网络  

A Time-sharing Microwave Network Operated in Ku / Ka-band

作　　者：张博[1] 苏丽[1] 

机构地区：[1]中国电子科技集团公司第54研究所无线伺服专业部,河北石家庄050081

出　　处：《电子科技》2016年第7期110-112,共3页Electronic Science and Technology

摘　　要：为解决电小尺寸天线对双频馈源网络结构外形的限制,基于微波网络理论,提出了一种Ku/Ka双频段微波网络的设计方案。该网络通过频段切换开关实现双频分时使用,开关通过电机驱动,在Ka波段工作于圆极化,Ku波段工作于线极化,Ku频段的线极化调整通过旋转两个相互配合的90°移相器来实现。在工作频带内系统的插入损耗<1 d B,驻波比<1.35,线极化交叉极化>30 d B,且结构紧凑、性能稳定可靠,测试结果与技术要求吻合良好。Based on the theory of microwave network,a Ka / Ku dual- band microwave network system is presented for small antenna. It has a Time- sharing function of frequency reuse which is implemented by using motor driven diverter switch. The network operates circularly polarization at Ka band,and linear polarization at Ku band.Polarization characteristics of antenna can be controlled by rotating the variable polarizer. some measurements for the feed system are done,with insertion loss of the system less than 1,VSWR less than 1. 35,and XPI more than 30. measurement result is verified to meet the technique requirement very well.

关 键 词：微波网络 双频段 频段切换 介质片变极化器 

分 类 号：TN82[电子电信—信息与通信工程] TP227[自动化与计算机技术—检测技术与自动化装置]