中文摘要：

利用射线级数法分析各向异性介质涂覆PEC平板反射场。该分析引入Chew使用的状态向量来表征场,利用传输矩阵表征各向异性涂覆层中的电磁波经过了一次下行路径和上行路径之后幅值和相位产生的变化。将涂覆层表面总场表示成一个射线级数。每项级数分别判定成入射场、单次反射场及n次反射场,并通过涂覆层顶层和底层表面上的边界条件进行约束。从实际应用的角度考虑,对n次反射场之和的贡献选取截断次数,并验证了截断次数选取的合理性。文中的算例和分析说明了射线级数法的有效性及所得反射场的合理性。

英文摘要：

Ray series method is proposed to analysis the scattered fields from an infinite PEC plate coated with a homogenous anisotropic layer. The state vector mentioned by Chew is employed to express the fields in our investigation, and the transmission matrix is defined to describe the EM field variant after a downward and upward trip in the homogenous aniso- tropic layer. The total reflection on the surface of the anisotropic layer can be described by an infinite ray series. Each series are determined by the boundary conditions of the top and bottom interfaces of the anisotropic layer and corresponds to the in- cident field, the single reflection field and the n-th reflected fields respectively. For the practical application, the truncating times of the total contributions of the n-th reflected fields are set, and numerical results that demonstrate the validity of the truncating times are presented. The given examples in the paper show the validity of the method proposed and the rationality of the reflection field.