Tongxing Huang;Zewei Wu;Shuai Huang;Zhijin Wen;Wei Jiang;Jianhua Xu;Jianxun Wang;Yong Luo
{"title":"Broadband Transreflective Metasurface for Multifunctional Dual-Band OAM Engineering","authors":"Tongxing Huang;Zewei Wu;Shuai Huang;Zhijin Wen;Wei Jiang;Jianhua Xu;Jianxun Wang;Yong Luo","doi":"10.1109/TAP.2024.3435379","DOIUrl":null,"url":null,"abstract":"Shared-aperture dual-band transreflective metasurfaces enable independent manipulation of electromagnetic waves in both transmission and reflection across two separate frequency bands simultaneously. Nevertheless, dimensional constraints and unintended coupling limit the achievable bandwidth and phase coverage when the subcomponents are integrated in a compact area. This study presents a physics-based strategy to customize the resonant field and current distributions for the metasurface components, effectively suppressing inter-component coupling and expanding the phase range even within confined geometries. Using this proposed method, a shared-aperture dual-band transreflective metasurface with wideband operation and 2-bit phase discretization is designed. The efficacy of the meta-atom design strategy is demonstrated by a \n<inline-formula> <tex-math>$40\\times 40$ </tex-math></inline-formula>\n component prototype, which independently generates twisted orbital angular momentum (OAM) vortex beams in transmission at 14.5–20.7 GHz and in reflection at 30–40 GHz. The design strategy offers a novel approach for developing dual-band, wideband trans-reflection meta-atoms with potential applications in multifunctional wavefront shaping.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"72 9","pages":"7041-7047"},"PeriodicalIF":4.6000,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Antennas and Propagation","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10623399/","RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Shared-aperture dual-band transreflective metasurfaces enable independent manipulation of electromagnetic waves in both transmission and reflection across two separate frequency bands simultaneously. Nevertheless, dimensional constraints and unintended coupling limit the achievable bandwidth and phase coverage when the subcomponents are integrated in a compact area. This study presents a physics-based strategy to customize the resonant field and current distributions for the metasurface components, effectively suppressing inter-component coupling and expanding the phase range even within confined geometries. Using this proposed method, a shared-aperture dual-band transreflective metasurface with wideband operation and 2-bit phase discretization is designed. The efficacy of the meta-atom design strategy is demonstrated by a
$40\times 40$
component prototype, which independently generates twisted orbital angular momentum (OAM) vortex beams in transmission at 14.5–20.7 GHz and in reflection at 30–40 GHz. The design strategy offers a novel approach for developing dual-band, wideband trans-reflection meta-atoms with potential applications in multifunctional wavefront shaping.
期刊介绍:
IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques