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Orientation Independent Chipless RFID Tag Using Novel Trefoil Resonators
Univ Engn & Technol Taxila, Dept Telecommun Engn, ACTSENA Res Grp, Taxila 47050, Pakistan..
Univ Engn & Technol Taxila, Dept Telecommun Engn, ACTSENA Res Grp, Taxila 47050, Pakistan..ORCID iD: 0000-0001-8416-5264
Univ Engn & Technol Taxila, Dept Telecommun Engn, ACTSENA Res Grp, Taxila 47050, Pakistan..
Univ Engn & Technol Taxila, Dept Telecommun Engn, ACTSENA Res Grp, Taxila 47050, Pakistan..
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2019 (English)In: IEEE Access, E-ISSN 2169-3536, Vol. 7, p. 122398-122407Article in journal (Refereed) Published
Abstract [en]

In this paper, a compact and fully passive bit encoding circuit, capable of operating as a chipless radio frequency identification (RFID) tag is presented. The structure consists of novel concentric trefoil-shaped slot resonators realized using Rogers RT/duroid (R) 5880 laminate, occupying a physical footprint of 13.55 x 13.55 mm(2). Each resonating element is associated with a particular data bit, having a 1:1 resonator-to-bit correspondence. Bit sequences are configured through introducing modifications in the geometric structure either by addition or exclusion of each nested slot resonator. Such changes manifest directly in the electromagnetic signature of the tag as presence or absence of corresponding resonant peaks. The proposed 10-bit tag offers minimized inter-resonator mutual coupling and insensitivity to changes in polarization and incident angles thereby demonstrating orientation independent functionality. Moreover, error-free encoding is achieved through stabilizing the shift in resonant frequencies for a variety of different geometric configurations and orientation of the structure. The tag operates within the license-free ultrawideband ranging from 5.4 to 10.4 GHz, providing spectral bit capacity and bit density of 2 bits/GHz and 5.44 bits/cm(2) respectively.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2019. Vol. 7, p. 122398-122407
Keywords [en]
Chipless tag, on-off keying (OOK), radar cross-section (RCS), radio frequency identification (RFID)
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-261349DOI: 10.1109/ACCESS.2019.2937131ISI: 000485734700001OAI: oai:DiVA.org:kth-261349DiVA, id: diva2:1357831
Note

QC 20191004

Available from: 2019-10-04 Created: 2019-10-04 Last updated: 2019-10-04Bibliographically approved

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Tenhunen, Hannu

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