On the Use of Subwavelength Radial Grooves to Support Spoof Surface-Plasmon-Polariton Waves
On the Use of Subwavelength Radial Grooves to Support Spoof Surface-Plasmon-Polariton Waves
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DOI：
10.1109/lmwc.2016.2614970
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发表时间：
2016-11-01
影响因子：
3
通讯作者：
Werner, Douglas H.
中科院分区：
文献类型：
--
作者：
Pantoja, Mario F.;Jiang, Zhi Hao;Werner, Douglas H.
这封信介绍了径向槽作为一个可行的几何形状，以支持欺骗表面等离子体极化激元（SPP）波传播沿着真空金属界面。通过色散关系的解析推导，也与全波模拟验证，径向槽在微波制度的基模操作的能力被证明。此外，结果表明，与广泛使用的矩形凹槽相比，径向几何形状用于减小凹槽的深度，从而提供了用于生成欺骗SPP的上级方法。
This letter introduces radial grooves as a feasible geometry to support spoof surface-plasmon-polariton (SPP) waves propagating along a vacuum-metallic interface. Through the analytical derivation of a dispersion relation, validated also with full-wave simulations, the ability of radial grooves to operate in the fundamental mode at the microwave regime is demonstrated. Also, results demonstrate the utility of radial geometries to decrease the depth of the grooves, in comparison with the widely used rectangular grooves, thereby providing a superior methodology for generating spoof SPPs.