摘要
本文提出了一种用于宽带雷达散射截面减缩的电磁超表面。该电磁超表面一面印制有周期性的金属贴片,另一面为金属面。由于每个金属贴片均会影响反射电磁波的相位,不规则尺寸排列的金属贴片会引起不规则反射相位的反射波,反射能量将在空间分散,这样对比金属平板实现了在9.5GHz^13.5GHz频率范围内2~10dB的RCS减缩。
A wideband metasurface for RCS reduction is introduced in this paper. The surface is composed of similar type of metamaterial units with different geometric dimensions, leading to various reflection phases under the incidence of plane waves. By carefully choosing the phase distributions, diffusion will be produced for the reflected waves which may redistribute the scattering energy from the surface toward all the directions. Compared to the metal plate, the RCS can be reduced by 2-10dB in 9.5GHz to 13.5GHz.
出处
《现代导航》
2016年第5期377-380,共4页
Modern Navigation