多层媒质中谱域及空域格林函数的一般表达式  

The General Form of Green's Functions in Spectral and Spatial Domain of Multi-Layered Medium

作　　者：李秀萍[1] 徐晓文[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《微波学报》2000年第5期493-502,共10页Journal of Microwaves

基　　金：国防科技预研基金项目

摘　　要：本文给出多层媒质中水平和垂直电、磁偶极子的谱域标量位和矢量位格林函数的一般表达式 ,并验证了其正确性。该表达式除了形式上比较简单 ,可以迅速提取准静态项和表面波项外 ,更重要的是便于向空域转化 ,利用离散镜象理论可以计算相应的以索末菲积分形式出现的空域格林函数。The spectral domain Green′s functions of scalar and vector potentials for vertical and horizontal electric as well as magnetic dipoles in multi-layered medium are presented and verified. In addition to their simple forms, the quasi-static images and the surface wave components can be extracted simply.Most important is that the spatial Green′s functions are easily obtained with Sommerfeld integral representations, which can be evaluated by using discrete complex image theory (DCIT). Some numerical results are presented finally.

关 键 词：多层媒质 谱域 空域 格林函数 

分 类 号：TN011[电子电信—物理电子学]