摘要
应用有限元分析方法计算了对称四脊矩形波导TE模式的传输特性,即截止波长和场结构图传输特性。分析了传输特性随四脊矩形波导结构尺寸的变化关系曲线,得到脊间距越小,相对的截止波长越大。四脊矩形波导中主模的截止波长可随脊宽的变化而变化,在脊间距d/b一定的情况下,截止波长在s/a=0.4时比在其他尺寸时大。这些结果和计算数据将为四脊矩形波导器件的小型化提供指导。
This paper describes the application of finite element method for obtaining the TE mode＇s cutoff wavelength and the field pattern of symmetric quadruple - ridged rectangle waveguide. The paper analyzes transmission characteristics change along with the changing curve of the ridged waveguides＇ dimensions, cut- off wavelength is longer along with the distance between the ridges increasing. The cutoff wavelength can be changed by changing the ridge width, whenthe distance d/b between the ridges is unchanged, the cut- off wavelength is longer than other waveguides＇ dimensions when s/a= 0.4,. These results could provide instructions for miniaturization of ridged waveguide apparatuses.
出处
《现代电子技术》
2008年第15期48-50,共3页
Modern Electronics Technique
关键词
四脊矩形波导
截止波长
场结构图
有限元法
传输特性
quadruple - ridged rectangle waveguide.
cut - off wavelength
field pattern
FEM
transmission characteristics
