<rdf:RDF xmlns:rdf="http://www.openarchives.org/OAI/2.0/rdf/" xmlns:ow="http://www.ontoweb.org/ontology/1#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
   <ow:Publication rdf:about="oai:digibug.ugr.es:10481/103037">
      <dc:title>Amplitude-Reconfigurable Unit Cell in CLAF-SIW for Beamforming Applications at mmWaves</dc:title>
      <dc:creator>Segura Gómez, Cleofás</dc:creator>
      <dc:creator>Biedma Pérez, Andrés</dc:creator>
      <dc:creator>Padilla De La Torre, Pablo</dc:creator>
      <dc:creator>Palomares Caballero, Ángel</dc:creator>
      <dc:subject>Contactless air-filled SIW (CLAF-SIW)</dc:subject>
      <dc:subject>Dynamic metasurface</dc:subject>
      <dc:subject>Millimeter waves</dc:subject>
      <dc:subject>PIN diode</dc:subject>
      <dc:subject>Reconfigurable pattern</dc:subject>
      <dc:description>This work has been supported by grant TED2021-129938B-I00 funded by MCIN/AEI/10.13039/501100011033&#xd;
and by the European Union NextGenerationEU/PRTR. It&#xd;
has also been supported by grants PID2020-112545RBC54,&#xd;
PDC2022-133900-I00, and PDC2023-145862-I00, funded by&#xd;
MCIN/AEI/10.13039/501100011033 and by the European&#xd;
Union NextGenerationEU/PRTR. It has been also partially&#xd;
supported by grants FPU20/00256 and EST23/00141 funded&#xd;
by MICIU/AEI/10.13039/501100011033 and by ESF Investing&#xd;
in your future.</dc:description>
      <dc:description>This work presents an amplitude-reconfigurable unit cell for the design of active 1D metasurfaces at the millimeterwave frequency range. The reconfigurable unit cell consists of contactless air-filled substrate-integrated waveguide (CLAF-SIW) that feeds a SIW cavity with a ring-shaped slot as a radiating element. In order to perform the reconfiguration, two PIN diodes are placed in the ring-shaped slot. The CLAF-SIW allows reduced losses while feeding the reconfigurable SIW cavities in a progressive form as a leaky-wave antenna. The structure requires a single layer for the radiating elements and only two for the feeding layer since the radiation layer completes the CLAF-SIW. For the implementation of beamforming at 40 GHz, a method of switching OFF/ON in each reconfigurable unit cell is applied. By optimizing the state of each unit cell in the reconfigurable leaky-wave antenna, various radiation patterns can be achieved.</dc:description>
      <dc:date>2025-03-13T11:41:50Z</dc:date>
      <dc:date>2025-03-13T11:41:50Z</dc:date>
      <dc:date>2025</dc:date>
      <dc:type>conference output</dc:type>
      <dc:identifier>Segura Gómez, Cleofás et al. Amplitude-Reconfigurable Unit Cell in CLAF-SIW for Beamforming Applications at mmWaves. 2025</dc:identifier>
      <dc:identifier>https://hdl.handle.net/10481/103037</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
      <dc:rights>open access</dc:rights>
      <dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
   </ow:Publication>
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