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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2020 Vol.21 No.1 P.27-38
Dispersion-engineered wideband low-profile metasurface antennas
Abstract: A metasurface (MTS) can be characterized in terms of dispersion properties of guided waves and surface waves. By engineering the rich dispersion relations, setting particular boundary conditions, and selecting proper excitation schemes, multiple adjacent resonance modes can be excited to realize the wideband operation of low-profile MTS antennas. We introduce the operating principles of typical dispersion-engineered MTS antennas, and review the recent progress in dispersion-engineered MTS antenna technology. The miniaturization, circular polarization, beam-scanning, and other functionalities of MTS antennas are discussed. The recent development of MTS antennas has not only provided promising solutions to the wideband and low-profile antenna design but also proven great potential of MTS in developing innovative antenna technologies.
Key words: Metasurface antenna, Dispersion engineering, Composite right/left-handed (CRLH), Guided wave, Surface wave, Wideband, Low profile
1新加坡国立大学电气与计算机工程系，新加坡，117583
2新加坡资讯通信研究所，新加坡，138632
摘要：超构表面支持传播导波和表面波，并表现出新颖的色散特性。通过调控其独特的色散特性、设置特殊的边界条件以及选用合适的激励机制，低剖面的超构表面天线也能激励起多个邻近的谐振模式以实现宽带定向辐射。本文首先介绍3类典型宽带低剖面色散可调超构表面天线及其工作原理，接着详细综述色散可调超构表面天线技术的研究进展，重点讨论小型化、圆极化、波束扫描等应用设计。这种新近发展的色散可调超构表面技术，不仅能为宽带低剖面天线设计提供解决方案，更显示其在新型天线技术研发中的巨大潜力。
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Open peer comments: Debate/Discuss/Question/Opinion
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DOI:
10.1631/FITEE.1900473
CLC number:
TN82
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On-line Access:
2024-08-27
Received:
2023-10-17
Revision Accepted:
2024-05-08
Crosschecked:
2020-01-03