单轴各向异性分层介质的二维空域格林函数  

2-D spatial domain Green′s function for uniaxial layered structures

作　　者：冯宁宁[1] 周桂蓉[1] 方大纲[1] 黄卫平[2] 

机构地区：[1]南京理工大学毫米波技术实验室,南京210094 [2]加拿大滑铁庐大学

出　　处：《电波科学学报》1999年第4期365-370,共6页Chinese Journal of Radio Science

摘　　要：通过采用２－Ｄ全波离散镜像技术得到了单轴各向异性分层介质结构的空域Ｇｒｅｅｎ函数的解析形式。重点讨论了应用全波离散镜像技术到２－Ｄ问题中的难点。通过比较，揭示了２－Ｄ问题中极点抽取的必要性。对于近谱变化剧烈的单轴各向异性介质的谱域Ｇｒｅｅｎ函数，采用了矩阵束方法进行拟合。最终结果与数值积分的结果吻合很好。The spatial domain Green′s functions for uniaxial layered structures are cast into closed forms by using 2 D full wave discrete images(FWDI) technique.The main difficulty of the application of FWDI technique in 2 D problem is discussed in this paper.The comparison shows that the extraction of poles is necessary for 2-D problems.In order to catch the fast change of the near spectrum of the spectral domain Green′s function of uniaxial medium, the matrix pencil method(MPM) is used.All the results agree well with those of numerical integration.

关 键 词：全波离散镜像 单轴 各向异性 分层介质 格林函数 

分 类 号：TM154.3[电气工程—电工理论与新技术] TN76[电子电信—电路与系统]