• Medientyp: E-Artikel
  • Titel: A dual-band reconfigurable intelligent metasurface with beam steering
  • Beteiligte: Lin, Hai; Yu, Wen; Tang, Rongxin; Jin, Jing; Wang, Yumei; Xiong, Jie; Wu, Yanjie; Zhao, Junming
  • Erschienen: IOP Publishing, 2022
  • Erschienen in: Journal of Physics D: Applied Physics, 55 (2022) 24, Seite 245002
  • Sprache: Nicht zu entscheiden
  • DOI: 10.1088/1361-6463/ac5663
  • ISSN: 0022-3727; 1361-6463
  • Schlagwörter: Surfaces, Coatings and Films ; Acoustics and Ultrasonics ; Condensed Matter Physics ; Electronic, Optical and Magnetic Materials
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  • Beschreibung: <jats:title>Abstract</jats:title> <jats:p>In recent years, reconfigurable metasurfaces have become research hotspots since they can manipulate electromagnetic waves dynamically and flexibly. The realisation of cost-effective and energy-efficient wireless communications via reconfigurable intelligent surfaces (RISs) is attractive in various application scenerios. In this work, a <jats:inline-formula> <jats:tex-math><?CDATA $+45^{\circ}$?></jats:tex-math> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mo>+</mml:mo> <mml:msup> <mml:mn>45</mml:mn> <mml:mrow> <mml:mo>∘</mml:mo> </mml:mrow> </mml:msup> </mml:math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="dac5663ieqn1.gif" xlink:type="simple" /> </jats:inline-formula>-polarized dual-band reconfigurable metasurface with beam steering ability is proposed to combat signal attenuation in wireless communications. By varying the bias voltages of the integrated varactors in the specially designed meta-atom, 0 and <jats:italic>π</jats:italic> phase responses have been excited around both 2.4 and 5.8 GHz. Taking advantage of this unique feature, we proposed a one-bit coding RIS device which provides dual-band application. To validate the proposed concepts, a reconfigurable metasurface composed of 16 × 16 elements was fabricated and measured. The measurement results agree well with the simulation, so the proposed prototype is a promising candidate for future intelligent communications.</jats:p>