【摘要】 根据等效原理、远场近似和边界条件,采用高频近似方法来分析雷达吸波材料涂层的矩形导电平板的电磁散射.当涂层是各向同性或单轴各向异性的薄吸波材料时,应用这个简单而有效的方法,可以计算电大尺寸涂敷目标的雷达散射截面(RCS).本文以涂敷导电平板和立方体为例,计算了雷达散射截面随入射角、涂层材料及涂层厚度的变化关系,结论还显示了目标涂敷雷达吸波材料后电磁散射的一些性质.更多还原

【Abstract】 In this paper, according to the equivalence principles, far field approximation and boundary conditions, high frequency approximation method has been developed to analyze the EM scattering by a rectangular conducting flat plate coated with radar absorbing material(RAM).When the coating is isotropic or uniaxial anisotropic thin absorbing material, the simple but effective method is available to calculate the radar cross section(RCS) of electrical large target with coating. The examples of conducting flat plate and cube with coating are provided in this paper. We calculate the variation laws of the RCS with the incident angle, the coating material and the thickness of the coating, results also show some properties of the EM scattering when the targets are coated with RAM.更多还原