同轴腔体的第二类电型并矢格林函数

Derivation of the Second Electric Dyadic Green’s Functions for a Coaxial Cavity

基于场的矢量波函数展开理论,采用Gm方法构造并矢格林函数的本征函数展开式时,无需用到无旋矢量波函数L,能够简化推导过程.结合散射叠加法、并矢切向磁场边界条件,得到了同轴腔体的第二类电型并矢格林函数的矢量波函数展开式,该方法可以推广用于构造其它形体的并矢格林函数.结果能够直接用于分析开缝、孔隙耦合等电磁场边值问题.

The eigenfunction expansions of the second electric dyadic Green's functions for a coaxial cavity can be derived based on the method of Gm, whereby the irrotational vector wave function L is not needed. This work presents detailed derivation in which scottering super position and the boundaty condition on dyadic tangentiol magnetic field are ased.The formulation can be applied to analyze slot coupling.