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本文将任意截面和波纹形状的软波导看作是一种周期性结构,借助于Fourler展开方法,并应用Floquent定理将这种波导中的场所应满足的边界条件和Maxwell方程组转换为一个线性常微分方程组,然后通过数值方法求解。显然,本法同样适用于求解其他类型微波周期性结构的电磁场问题。
In this paper, a soft waveguide with arbitrary cross-section and corrugation is regarded as a periodic structure. With the aid of the Fourler expansion method, Floquent’s theorem is used to convert the boundary conditions and the Maxwell equations that should be satisfied by this place in the waveguide to a linear Differential equations, and then solved by numerical methods. Obviously, this law is also applicable to solve electromagnetic field problems of other types of microwave periodic structures.