摘要
本文首先从理论上导出了能计算斜入射绕射场的阻抗劈并矢绕射系数,然后利用该绕射系数结合物理光学法对涂覆型大尺寸有限长圆柱的散射特性进行了分析和计算。在绕射区计及了一阶和二阶绕射贡献,在镜反射方向附近作了驻相法近似,由此得到的数值结果与实验结果吻合较好。
The dyadic diffraction Coefficient of an impendance wedge is derived here. Then, the analysis and calculation of a coated conducting cylinder with finite length are presented using the dyadic diffraction coefficient and physical optics method. First-and second-order diffractions are included,while stationary approximations are given in the vicinity of specular reflecting directions. Numerical results agree witk experimental ones very well.
出处
《微波学报》
CSCD
北大核心
1993年第1期1-12,共12页
Journal of Microwaves
关键词
有限长圆柱
散射
特性
尺寸
RCS
scattering
uniform theory of diffraction
physical optics method
lossy object
