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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。
Analysis of Anisotropic Media Using PEC Plates by Radial Series Method. The analysis introduces the state vector used by Chew to characterize the field, and uses the transfer matrix to characterize the changes in amplitude and phase of the electromagnetic wave in the anisotropic coating after a downward path and an upward path. The total surface field of the coating is expressed as a ray progression. Each series is determined as the incident field, the single reflection field and the n reflection field, respectively, and is constrained by the boundary conditions on the top and bottom surfaces of the coating. Considering practical application, we choose the number of truncations for the contribution of the sum of n reflection fields, and verify the rationality of choosing the number of truncations. The examples and analyzes in this paper illustrate the validity of the ray-number method and the rationality of the resulting reflection field.