非均匀介质填充波导本征值问题的有限元分析
THE FINITE-ELEMENT ANALYSIS OF EIGENVALUEPROBLEM OF WAVEGUIDES FILLED WITHINHOMOGENEOUS DIELECTRICS
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摘要: 本文讨论了用有限元法求解非均匀介质填充波导本征值问题的具体过程。给出了有关的计算公式和程序。作为例子,对条形介质填充矩形波导主模场结构的分析和色散特性的计算,获得了与解析解十分一致的结果,从而证实了所述程序的可靠性。
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Abstract: The concrete procedure using finite-element method to solve the eigenvalue problem of waveguides filled with inhomogeneous dielectrics is discussed. The relative formula and programs are given. For an example, the field structure analysis and calculation of the dispersion feature for dominant mode of the dielectric slab loaded rectangular waveguide have been completed. The rather consistent results with analytical solution are obtained and the reliability of the programs is verified. -
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