Concept, Theory, Design, and Applications of Spoof Surface Plasmon Polaritons at Microwave Frequencies,Advanced Optical Materials

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Concept, Theory, Design, and Applications of Spoof Surface Plasmon Polaritons at Microwave Frequencies
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-08-28 , DOI: 10.1002/adom.201800421
Wen Xuan Tang ₁ , Hao Chi Zhang ₁ , Hui Feng Ma ₁ , Wei Xiang Jiang ₁ , Tie Jun Cui ₁

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Surface plasmon polaritons (SPPs) are highly localized surface waves that exist on the interface of two media with opposite permittivities at optical frequencies. To produce spoof SPPs at microwave or terahertz frequencies, plasmonic metamaterials have been proposed by making subwavelength structures on a metal surface. Spoof SPPs inherit the properties of natural SPPs, including dispersion characteristics, field confinement, and subwavelength resolution, and therefore are highly expected to offer new solutions for advanced circuits and systems with high integration, compact size, and excellent performance. In this article, the development of spoof SPPs in recent years is reviewed, focusing primarily on the basic concept, theory, design method, and applications in microwave engineering. First, the concept and theory of SPPs and spoof SPPs are introduced, along with development from bulky waveguides to ultrathin transmission lines (TLs) and the unique merits of this new type of TL. Then, the design method is studied, including the feeding strategy of spoof SPP TLs and the realization of reconfigurable spoof SPPs. Recent progress on the engineering realization of plasmonic circuits is also demonstrated, including passive SPP circuits, active SPP devices, and SPP antennas. Finally, the future directions and potential applications of microwave spoof SPPs are discussed.

中文翻译：

微波频率下的欺骗表面等离激元极化子的概念，理论，设计和应用

表面等离振子极化子（SPPs）是高度局域化的表面波，存在于两种介质的界面上，在光频率下具有相反的介电常数。为了产生微波或太赫兹频率的欺骗性SPP，已经提出了通过在金属表面上形成亚波长结构来形成等离激元超材料的方法。欺骗性SPP继承了自然SPP的特性，包括色散特性，场限制和亚波长分辨率，因此，人们高度期望其为具有高集成度，紧凑型尺寸和出色性能的高级电路和系统提供新的解决方案。在本文中，对近年来欺骗性SPP的发展进行了回顾，主要侧重于基本概念，理论，设计方法以及在微波工程中的应用。第一的，介绍了SPP和欺骗性SPP的概念和理论，以及从笨重的波导到超薄传输线（TL）的发展以及这种新型TL的独特优点。然后，研究了该设计方法，包括欺骗性SPP TL的馈送策略和可重构欺骗性SPP的实现。还展示了等离子电路的工程实现方面的最新进展，包括无源SPP电路，有源SPP器件和SPP天线。最后，讨论了微波欺骗SPP的未来方向和潜在应用。还展示了等离子电路的工程实现方面的最新进展，包括无源SPP电路，有源SPP器件和SPP天线。最后，讨论了微波欺骗SPP的未来方向和潜在应用。还展示了等离子电路的工程实现方面的最新进展，包括无源SPP电路，有源SPP器件和SPP天线。最后，讨论了微波欺骗SPP的未来方向和潜在应用。

更新日期：2018-08-28

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