Ka波段波导对称五端口结设计  

Design of Ka Band Symmetrical Five Port Waveguide Junction

作　　者：郭寅生[1] 颜锦奎[1] 徐得名[1] 庄静[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《微波学报》2012年第1期62-65,92,共5页Journal of Microwaves

基　　金：总装备部预研基金(9140A01010108BQ0101);上海市重点学科及实验室基金(S30108;08DZ2231100)

摘　　要：六端口反射计在微波网络测量方面具有很重要的地位,而对称五端口结则是构成六端口反射计的关键器件之一。介绍了一种工作于Ka波段的E面波导构成的对称五端口结。该五端口结采用中心多边形腔体外接标准波导的结构方式,并且采用加入介质柱以及电感性膜片的匹配方法。利用电磁仿真软件HFSS对其进行仿真优化,并对实物进行测量,证明所设计的对称五端口结性能良好,在整个Ka波段(26.5GHz～40GHz)各端口失配度均小于-16.8dB,可以很好地满足六端口系统的需要。The six-port reflectometer has an important position in the field of microwave measurement, and the symmetrical five-port waveguide junction is one of its core components. This paper introduces a symmetrical five-port waveguide junction working in Ka band. It has a structure of polygonal cavity with five external standard wavegnides, also we add a dielectric post and some identical inductive diaphragms to decrease the reflection coefficient. After simulation, optimization by Ansoft HFSS and measurement, the symmetrical five-port junction we designed has a very good performance, and it is capable of satisfying the requirement of six-port reflectometer.

关 键 词：六端口反射计 对称五端口结 反射系数 

分 类 号：TN814[电子电信—信息与通信工程]