舰船RCS整形设计中的电磁分析

减小舰船雷达散射截面（RCS）需要对舰船进行整形设计。本文从分析舰船典型结构——金属板的RCS与雷达波的入射角、频率及几何尺寸的关系出发,采用物理光学法导出了金属平板RCS与倾斜角的理论公式,确定了在单频点或多频点对平板进行雷达隐身设计的最佳倾斜角,通过具体实例说明了在舰船整形设计时,采用本文给出的计算公式可以对舰船的RCS和舱室容积进行折衷设计。结论对舰船雷达隐身设计具有指导意义。

The Electromagnetic Analysis in Ship RCS Plastics Design

The radar cross-section（RCS） reduction needs applying plastics design to ship. In this paper, setting out from typical structures--metal plate, and discussing the relation of RCS with incident angle, frequency of radar wave, and geometry of metal plate, the formula, which characterizes the RCS of the plate with inclined angle, has been derived by physical optics theory. Through the formula, the optimal inclined angle can be determined at single frequency and multiple frequencies. Also, an example is pre- sented to illustrate how to make a compromised design according to formulas considering stealthy of the ship and volume of the cabin. The results are significant to the stealthy design of ship.