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用有限元法分析了圆形槽波导到圆波导结这一复杂结构的电磁特性 .为了避免伪模式的产生 ,有限元法的基函数采用的是矢量基函数 .利用完全匹配层 (PML)来解决槽波导无限域结构的截断问题 .有限元有限元法法的分析得出了这一波导结中圆形槽波导端口TE=O =1 1 模和圆波导端口TEO1 1 模之间的模式散射参数 (S参数 )随离散频率点和耦合结构尺寸变化的结果 ,分析结果为圆形槽波导谐振腔或振荡器的设计提供了依据 .
The finite element method is used to analyze the electromagnetic properties of the circular slot waveguide to the circular waveguide junction. In order to avoid the pseudo-mode generation, the basis function of the finite element method uses a vector basis function. By using a perfect matching layer (PML) To solve the problem of truncation of slot waveguide infinite domain structure.Analyzing and analyzing the finite element method of finite element method results in the mode scattering between TE = O 1 1 mode and TEO 1 1 mode of circular waveguide ports in this waveguide junction The parameters (S-parameters) vary with discrete frequency points and the size of the coupling structure. The analysis results provide a basis for the design of circular slot waveguide resonators or oscillators.