基于诱导磁的惠更斯超表面与毫米波透镜天线应用  

Huygens'Metasurface Based on Induced Magnetism and Its Application in Millimeter-wave Lens Antenna

作　　者：薛春华[1] XUE Chunhua(Guangxi Key Laboratory of Multidimensional Information Fusion for Intelligent Vehicles,Guangxi University of Science and Technology,Liuzhou 545006,China)

机构地区：[1]广西科技大学,广西智能汽车多维信息融合重点实验室,广西柳州545006

出　　处：《无线电工程》2024年第9期2063-2073,共11页Radio Engineering

基　　金：国家自然科学基金面上项目(62071133)。

摘　　要：超表面因强大的电磁操控能力,在现代无线通信及毫米波雷达等领域展现出巨大的应用潜力。在结构极简的超表面上实现尽可能丰富的电磁功能是工程界孜孜以求的目标。以诱导磁机制为出发点,对结构极简的惠更斯超表面进行了系统性研究,并对其在毫米波透镜天线中的潜在应用进行了全面综述。诱导磁机制能够利用单层印制电路板(Printed Circuit Board,PCB)基板的双层金属图案激发磁谐振,进而激发惠更斯谐振,在电磁波调控方面突破了传统频率选择表面的移相限制,并为在结构极简的超表面上实现高效的透射波操控铺平了道路。惠更斯超表面的潜在应用包括单极化、双极化、双频带、低剖面和透/反双功能超透镜天线设计。由于可以使用单层PCB基板制备,制备容易、成本低廉,基于诱导磁的惠更斯超表面对于未来天线工程有着重要的应用价值。Metasurfaces have shown great potential for applications in modern wireless communications and millimeter-wave radar due to their powerful electromagnetic manipulation capabilities.And realizing as many electromagnetic functions as possible on metasurfaces with extremely simple structure is what the engineering community strives for.A systematic study of Huygens'metasurfaces with simplified structure is carried out based on the induced magnetism,and a comprehensive review is presented for their potential applications in millimeter-wave lens antennas.The induced magnetism is able to utilize the double-layer metallic patterns on a single-layer Printed Circuit Board(PCB)substrate to excite the magnetic resonance and hence the Huygens resonance,which breaks through the phase-shifting limitation of the conventional frequency-selective surfaces in terms of electromagnetic wave manipulation.The properties pave the way for efficient transmitted-wave manipulation on the very simple metasurfaces.Potential applications of Huygens'metasurfaces include single-polarized,dual-polarized,dual-band,low-profile,and transmissive/reflective bifunctional metalens antenna designs.Since it can be prepared using a single-layer PCB substrate which make the fabrication much easier and lower cost,the Huygens'metasurfaces based on the induced magnetism have important applications for future antenna engineering.

关 键 词：惠更斯超表面 诱导磁 超透镜天线 双极化 双频带 低剖面 双功能 

分 类 号：TN61[电子电信—电路与系统]