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应用物理光学法 (PO)对天线—罩系统的散射特性进行分析。通过对罩壁的局部平板等效 ,导出了天线表面的感应电流和罩表面的等效电、磁流分布的计算公式。以口径天线—多层介质结构雷达罩为例 ,计算了天线、雷达罩及天线—罩系统的单、双站雷达散射截面 (RCS) ,并研究了当照射波频率和天线扫描角变化时RCS的变化规律
The scattering characteristics of the antenna - cover system were analyzed by using physical optics method (PO). Based on the local plate equivalent of the cover wall, the formulas of the induced current on the antenna surface and the equivalent electrical and magnetic flow distributions on the cover surface are derived. Taking the caliber antenna - multi-layered medium structure radome as an example, the single and double station radar cross sections (RCS) of antenna, radome and antenna-cover system are calculated and the RCS The law of change