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The vertical eigen-mode was solved by one-dimensional finite element method (FEM).
垂直特征模式用一维有限元计算。
From these expressions the dyadic Green's function for a dielectric waveguide can be obtained if the eigen-mode of the waveguide are given.
根据这个表达式，只要给定介质波导的本征模，就可以得到该波导的并矢格林函数。
It is shown that the expression of electric-type dyadic Green's function is the sum of an eigen-mode expansion containing nine dyadic components and a singular term.
得到的电型并矢格林函数表达式由包括九个并矢分量的本征模展开式和一个奇异项组成。
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