A1 Refereed original research article in a scientific journal
FSS inspired polarization insensitive chipless RFID tag
Authors: Iqbal MS, Shahid H, Riaz MA, Rauf S, Amin Y, Tenhunen H
Publisher: IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Publication year: 2017
Journal: Ieice Electronics Express
Journal name in source: IEICE ELECTRONICS EXPRESS
Journal acronym: IEICE ELECTRON EXPR
Article number: ARTN 20170243
Volume: 14
Issue: 10
Number of pages: 6
ISSN: 1349-2543
DOI: https://doi.org/10.1587/elex.14.20170243
Abstract
A polarization insensitive, compact, fully-passive bit encoding structure exhibiting 1 : 1 resonator-to-bit correspondence is presented. Inspired by frequency selective surface (FSS) based microwave absorbers, the structure readily operates as a chipless radio frequency identification (RFID) tag. The unit cell is composed of several concentric hexagonal loops. Finite repetitions of the unit cell constitute the proposed RFID tag in its entirety. The required bit sequence is encoded in the frequency domain by addition or omission of corresponding nested resonant elements. A functional prototype is fabricated on a commercial-grade grounded FR4 substrate, occupying a physical footprint of 23 x 10mm(2) while offering a capacity of 14 bits. The proposed tag boasts a minuscule profile, and demonstrates polarization insensitivity as well as stable oblique angular performance.
A polarization insensitive, compact, fully-passive bit encoding structure exhibiting 1 : 1 resonator-to-bit correspondence is presented. Inspired by frequency selective surface (FSS) based microwave absorbers, the structure readily operates as a chipless radio frequency identification (RFID) tag. The unit cell is composed of several concentric hexagonal loops. Finite repetitions of the unit cell constitute the proposed RFID tag in its entirety. The required bit sequence is encoded in the frequency domain by addition or omission of corresponding nested resonant elements. A functional prototype is fabricated on a commercial-grade grounded FR4 substrate, occupying a physical footprint of 23 x 10mm(2) while offering a capacity of 14 bits. The proposed tag boasts a minuscule profile, and demonstrates polarization insensitivity as well as stable oblique angular performance.
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