摘要
介绍了一种推导无耗、互易和无界旋波媒质中谱域并矢Green函数表达式的新方法· 这种方法以Hemholtz定理以及并矢Diracδ函数的无散和无旋分解为基础,首先将电矢量的并矢Green函数方程分解成无散电矢量的并矢Green函数方程和无旋电矢量的并矢Green函数方程。
A new method of formulating dyadic Green's functions in lossless,reciprocal and unbounded chiral medium was presented.Based on Helmholtz theorem and the non-divergence and irrotational splitting of dyadic Dirac delta- function was this method, the electrical vector dyadic Green's function equation was first decomposed into the non-divergence electrical vector dyadic Green's function equation and irrotational electrical vector dyadic Green's function equation,and then Fourier's transformation was used to derive the expressions of the non-divergence and irrotational component of the spectral domain electrical dyadic Green's function in chiral media.It can avoid having to use the wavefield decomposition method and dyadic Green's function eigenfunction expansion technique that this method is used to derive the dyadic Green's functions in chiral media.
出处
《应用数学和力学》
CSCD
北大核心
2005年第2期178-182,共5页
Applied Mathematics and Mechanics
基金
交通部建设基金资助项目(752147)
关键词
并矢Green函数
无散分量
无旋分量
电磁波场
电荷场
旋波媒质
dyadic Green's function
non-divergence component
irrotational component
electromagnetic wave field
charge field
chiral medium