Comparison of two matching techniques for UHF RFID tags

This Letter reports a comparison between shunt‐series inductance (SSI) and inductively coupled loop (ICL) matching circuits for ultra high frequency (UHF) Radio Frequency IDentification (RFID) tags. It is shown analytically that an optimized ICL circuit is fully equivalent to an optimized SSI circui...

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Bibliographic Details
Published in:Microwave and optical technology letters 2018-07, Vol.60 (7), p.1763-1767
Main Authors: Gourari, F. Z., Meriah, S. M., Protat, S., Dubouil, J., Laheurte, J.‐M.
Format: Article
Language:English
Subjects:
Automatic identification
Dipole antennas
Electromagnetism
Engineering Sciences
Equivalence
impedance matching
Inductance
Matching
Radio frequency identification
RFID antennas
Tags
Very high frequencies
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Summary:This Letter reports a comparison between shunt‐series inductance (SSI) and inductively coupled loop (ICL) matching circuits for ultra high frequency (UHF) Radio Frequency IDentification (RFID) tags. It is shown analytically that an optimized ICL circuit is fully equivalent to an optimized SSI circuit provided that some adjustments are made on the dipole antenna geometry. Numerical and experimental characterizations of the RFID tags built with both topologies confirm this equivalence.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.31235