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Title: Spatially confined UHF RFID detection with a metamaterial grid
Authors: Morgado, Tiago A.
Alves, Jorge M.
Marcos, João S.
Maslovski, Stanislav I.
Costa, Jorge R.
Fernandes, Carlos A.
Silveirinha, Mário G.
Keywords: Metamaterials
Near-field UHF RFID
Radio frequency identification (RFID)
Wire media
Issue Date: Jan-2014
Publisher: IEEE
Abstract: The confinement of the detection region is one of the most challenging issues in Ultra-High Frequency (UHF) Radio Frequency Identification (RFID) systems. Here, we propose a new paradigm to confine the interrogation zone of standard UHF RFID systems. Our approach relies on the use of an all-planar metamaterial wire grid to block the radiation field (i.e., the far-field) of the reader antenna, and thereby obtain a spatially well-confined detection region in the near-field. This solution is analytically and numerically investigated, and then experimentally verified through near-field and tag-reading measurements, demonstrating its effectiveness and robustness under external perturbations.
Description: WOS: 000329516700044 (Nº de Acesso Web of Science)
Peer reviewed: Sim
ISSN: 0018-926X
Publisher version: The definitive version is available at:
Appears in Collections:CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica
IT-RI - Artigo em revista internacional com arbitragem científica

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