摘要
采用矢量有限元法对脊加载椭圆波导的传输特性进行了分析,编程计算了圆形脊、梯形脊和三角形脊分别加载在椭圆短轴和长轴上波导的截止频率。结果表明:脊加载在椭圆长轴上,大大减小了单模带宽,因此这种结构可作为有效的脊带宽滤波器。
The wave propagation characteristics of the ridged elliptical waveguide are analyzed by using vector finite-element method. The cutoff frequency of elliptical waveguide with circle ridge, trapzezoidal ridge and triangle ridge are calculated respectively. It is shown that the ridge position on the long axis of elliptical waveguide may shrink sing-mode bandwidth, so this structure is an effective ridge bandpass filter.
出处
《电波科学学报》
EI
CSCD
北大核心
2009年第6期1164-1167,共4页
Chinese Journal of Radio Science
基金
江苏省教育厅自然科学基金项目(06KJD06KJ0510028)
淮阴师范学院教授基金项目(06HSJS021)
关键词
椭圆波导
本征值
脊加载
矢量有限元法
elliptical waveguide
eigenvalue
ridged
vector finite-element method
