A1 Refereed original research article in a scientific journal
Novel Butterfly Slot Based Chipless RFID Tag
Authors: Riaz MA, Abdullah Y, Shahid H, Amin Y, Akram A, Tenhunen H
Publisher: SPOLECNOST PRO RADIOELEKTRONICKE INZENYRSTVI
Publication year: 2018
Journal: Radioengineering
Journal name in source: RADIOENGINEERING
Journal acronym: RADIOENGINEERING
Volume: 27
Issue: 3
First page : 776
Last page: 783
Number of pages: 8
ISSN: 1210-2512
eISSN: 1805-9600
DOI: https://doi.org/10.13164/re.2018.0776
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/35993657
A compact chipless RFID tag with robust readable features is presented in this paper. The tag is made up of novel concentric butterfly slot resonators. Bit data is encoded in the frequency signature of the tag. Each slot corresponds to a resonance peak representing a bit '1', whereas an absence of the peak signifies a bit '0'. Proposed resonator design demonstrates insensitivity to different polarization and incident angles of the linearly polarized impinging electromagnetic wave. The tag operates in the frequency band of 4.7-9.7 GHz, limited within the license free ultra wide-band. Rogers RT/duroid (R) 5880 substrate is used to realize a 10-bit capacity design that spans 14 x 14 mm(2) resulting in a bit density of 5.1 bits/cm(2).
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