3D-printed Metasurfaces of Capped Helices Providing Broadband Negative Mode Index
3D-printed Metasurfaces of Capped Helices Providing Broadband Negative Mode Index
复制标题
3D 打印的带帽螺旋超表面提供宽带负模指数
DOI：
10.1109/metamaterials49557.2020.9285143
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Petrov P
中科院分区：
文献类型：
--
作者：
Petrov P
利用亚波长金属帽螺旋结构的负电和磁耦合，我们证明了一个宽带负模折射率超颖表面。数值和实验结果的结构与负色散带宽的44%相比，个别加盖螺旋的谐振频率。这种结构的尺寸，元件的几何形状和操作通带宽度方面的优化证明。
Using structures of subwavelength metallic capped helices with both negative electric and magnetic couplings, we demonstrate a broadband negative mode index metasurface. Numerical and experimental results are presented for the structure with negative dispersion bandwidth of 44% compared to the resonant frequency of individual capped helices. Optimisation of such structures in terms of their size, element geometry and operational passband width is demonstrated.