变形矩形脊波导传输特性分析  

Analysis on Transmission Characteristics of Rectangular-ridge Waveguide in Deformation

作　　者：赵霞[1] 陈小强[1] 

机构地区：[1]兰州交通大学自动化与电气工程学院,甘肃兰州730070

出　　处：《无线电工程》2011年第1期35-37,共3页Radio Engineering

基　　金：兰州交通大学青蓝人才工程项目:甘肃省自然科学基金项目(3ZS024-B25-034)

摘　　要：针对波导器件在使用中可能会产生的变形,采用有限元方法分析了矩形脊波导在错位和受力变形时对其传输特性的影响。数值分析结果表明,错位变形使脊波导截止波长变长,单模带宽增大程度小于1%,对于脊波导传输特性影响较大的是两侧受力变形,当变形达到10%时,其特性变化超过13%以上,在使用中应引起重视。In accordance with the distortion of waveguide apparatus in use,this paper uses the finite element method to analyze the influence on transmission characteristic of rectangular-ridge waveguide caused by displacement distortion and distortion under stress.Numerical results indicate that displacement distortion makes the cutoff wavelength of ridge waveguide increase,but the increment ratio of single-mode bandwidth is less than 1%.For,the distortion under stress from the two sides has more influence for transmission characteristic of ridge waveguide.When the distortion ratio is up to 10%,the variation ratio of characteristics is more than 13%,so it should be given weight in use.

关 键 词：有限元法 脊波导 截止波长 单模带宽 

分 类 号：TN814[电子电信—信息与通信工程]