惠更斯电磁超构表面微波天线的研究进展(特邀文章)（英文）
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摘要
惠更斯电磁超构表面脱胎于现代三维超构材料,是一种特殊的二维亚波长阵列结构.基于经典电磁学惠更斯等效原理,惠更斯电磁超构表面可以灵活地调控电磁波的传播和电磁场的分布,其独特的电磁特性给天线的创新带来了巨大的机遇.文章将综述惠更斯电磁超构表面在微波天线中的研究进展,简要介绍惠更斯超表面的基本概念和原理并总结其在微波天线设计中的应用,重点阐述三种惠更斯超构表面天线技术及其设计案例.最后,展望惠更斯超构表面在天线工程中的广阔应用前景.
Based on classic electromagnetic Huygens' Principle and the concept of modern metamaterials,metamaterial Huygens surface,namely,metasurface(MTS)is presented to be the two-dimensional analogues of metamaterials.With the dense arrays of electrically small unit cells,the MTS can control electromagnetic waves and fields in either usual or unusual ways.Such unique electromagnetic properties greatly offer additional opportunities to innovate new antennas.This paper updates the latest progress in the MTS based antenna at microwave bands.First,the concept of the MTS is briefly introduced with a summary of applications of the MTS in microwave antenna design.After that,three of selected MTS based antenna techniques are elaborated with design examples.Finally,the promising applications of the MTS in antenna engineering are commented.
Based on classic electromagnetic Huygens' Principle and the concept of modern metamaterials,metamaterial Huygens surface,namely,metasurface(MTS)is presented to be the two-dimensional analogues of metamaterials.With the dense arrays of electrically small unit cells,the MTS can control electromagnetic waves and fields in either usual or unusual ways.Such unique electromagnetic properties greatly offer additional opportunities to innovate new antennas.This paper updates the latest progress in the MTS based antenna at microwave bands.First,the concept of the MTS is briefly introduced with a summary of applications of the MTS in microwave antenna design.After that,three of selected MTS based antenna techniques are elaborated with design examples.Finally,the promising applications of the MTS in antenna engineering are commented.
引文
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