In this dissertation , higher order anisotropic / tensor impedance boundary condition ( hotibc ) was derived and applied to anisotropic coated planar , cylindrical or bodies of revolution . the design of optimal ram for several conical targets was considered . the exact impedance for single and multilayer arbitrary material coated conducting planar and cylindrical surface were build hi spectral domain 本文以各向異性介質(zhì)涂敷結(jié)構(gòu)為研究對象,研究各向異性阻抗邊界條件的導出和在平面及曲面結(jié)構(gòu)上的應用方法和應用條件,最后,針對幾類典型體的ram進行優(yōu)化設計,建立快速、有效的設計方法。