无限长圆柱体的宽频带隐身罩的设计与仿真

Simulation and Design of Broadband Electromagnetical Cloaking for Long Cylinder

外形隐身技术在国内外研究与应用领域拥有大量的实验验证与实践应用。本文主要讨论了基于电磁波绕射原理的无限长圆柱体隐身实现方法,并对隐身效果进行讨论。综合讨论了外形隐身对于特定结构实现降低雷达散射截面(RCS)的方法,文章进而分析结构的S参数进行验证,并简要分析其可能的原理与实现方法。改变结构后仍然能够产生隐身效果,中心频点会降低。最后分析新型结构能够减小相应的电尺寸的原因。

The technology of stealth shape has been widely used in both at home and abroad,many scholars pay attention to new figures and make a lot of experiments.This proves that the research is more and more popular.This article mainly discussed how to obten the goal that makes a long cylinder unvisible,and analysised principle of electromegnetical diffraction and the process of stealth effect.General discussion about special structure and the method of radiation cross stattering(RCS)was written in the aritcle,and then we stimulated the S parameter to prove our results.At last,we changed the constructure and got a nice result that we made the center frenquency lower with the same effect of low RCS,and we explain the reason why new structure can reduce the electrical measurements.