本文为美国海军研究生院（作者：Cihangir Kemal Yuzcelik）的硕士论文，共83页。

低可观测平台的雷达横截面积非常小，单靠外部形状的设计是无法实现的。雷达吸波材料的应用是必要的，在这种情况下，必须选择合适的本构参数和厚度。通用设计图给出了在正常入射下提供零镜面反射的μ和t的组合。三种不同的背衬材料被用来制作图表：（1）完美的导电体，（2）自由空间和（3）石墨。可以从图表中选择理想零反射介质/磁层所需的数值，其他类型材料的扩展很简单。对涂层板进行了数值模拟，以评估吸收层在减小雷达散射截面方面的有效性。通过绘制带有和不带有雷达吸收材料板的雷达截面图，可以看出单静态雷达横截面的减小。

Low observable platforms have extremely lowradar cross section specifications that cannot be achieved by shaping alone.The application of radar absorbing material is necessary, in which case theappropriate constitutive parameters and thickness must be selected. Theuniversal design chart gives combinations of μ , and t that provide zerospecular reflection at normal incidence. Three different backing materials wereused to generate the charts: (1) perfect electric conductor, (2) free space,and (3) graphite. One can pick the required values from the charts for an idealzero reflection dielectric/magnetic layer. The extension to other materials isstraightforward. Numerical simulations of coated plates were performed toestimate the effectiveness of the absorbing layers in reducing radar crosssection. The reduction in monostatic radar cross section value is shown byplotting the radar cross section of the plate with and without radar absorbingmaterial.

1 引言

2 雷达横截面RCSR技术

3 雷达吸波材料

4 镜面吸收器通用设计图表

5 匹配波阻抗理论的建模与仿真

6 结论

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