卫星系统中折叠波导的展开形变及电特性研究  

Analysis of Deformation and Radiation Characteristic of Folded Waveguide in Satellite System

作　　者：汪娟[1] 谢拥军[1] 王鹏[1] 文刚[2] 陈霄[2] 李志武[2] 崔万照[3] 马伟[3] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071 [2]西安电子科技大学机电工程学院,陕西西安710071 [3]中国航天科技集团公司五院504所,陕西西安710010

出　　处：《现代电子技术》2009年第3期43-45,共3页Modern Electronics Technique

基　　金：国家重点实验室基金资助项目(9140C5306010604)

摘　　要：折叠波导在压缩和展开时可能产生的应力形变会影响其辐射特性,因此在设计时需要充分研究形变的机理和可能产生的影响。首先应用有限元方法分析和计算了形变带来的波导特性阻抗和传播常数的变化,以及由此引起的S参数的变化,选择合理的压缩方式,然后再对所选结构进行力学有限元的分析。该分析方法联系了电磁场特性和波导所受外力之间的关系,为实际工程提供有益的理论指导。The radiation characteristic of the folded waveguide could be affected by the expanded deformations therefore the mechanism and effects of deformation are important to take into account. The deformation of the membrane waveguide expanded by the force is analyzed with Finite Element Method （FEM）. Then the effects on character impedance due to the waveguide deformation are presented and the S parameters of membrane waveguide are analyzed with electromagnetic FEM. Study of their effects may lead to determine an allowable level of deformations in these structures reducing high constraint on mechanical design.

关 键 词：折叠波导 展开形变 卫星系统 电特性 

分 类 号：TN927[电子电信—通信与信息系统]