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Triangular patch-based wideband long-range UHF RFID tag for metallic environment

Published online by Cambridge University Press:  10 February 2025

Abhishek Choudhary Open the ORCID record for Abhishek Choudhary [Opens in a new window]  and
Deepak Sood Open the ORCID record for Deepak Sood [Opens in a new window]
Abhishek Choudhary*
Affiliation:
Department of Electronics and Communication Engineering, University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra, Haryana, India
Deepak Sood
Affiliation:
Department of Electronics and Communication Engineering, University Institute of Engineering and Technology, Kurukshetra University, Kurukshetra, Haryana, India
*
Corresponding author: Abhishek Choudhary; Email: choudhary.abhi16@gmail.com
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Abstract

A long-range, compact, wideband Ultra High Frequency (UHF) radio frequency identification (RFID) tag is proposed. The design features a triangular patch, designed to achieve wideband impedance matching. The tag exhibit −10 dB bandwidth from 753 to 917 MHz with a substrate thickness of 1.575 mm. The overall size of the tag is 121 × 30 × 1.575 mm3. The gain and bandwidth for varying substrate thickness is investigated. Further, two parasitic strips are designed alongside the patch to operate the tag more effectively at Federal Communications Commission (FCC) band in simultaneous with European Telecommunications Standards Institute (ETSI) band with increased read range. With parasitic strips, the tag exhibits −10 dB bandwidth from 766.5 to 896.5 MHz and 905 to 943.6 MHz which covers the bandwidth requirements in Europe, Asia, and North America. A prototype of the proposed tag is fabricated and experimentally tested with the RFID Higgs 4 IC. The tag provides a read range of over 14 m in 865–870 MHz and 13 m in 902–928 MHz when the tag is operated in free space and a read range of over 10.2 m in 865–870 MHz range and 10.3 m in 902–928 MHz range when mounted on a metallic surface of size of 200 × 200 m2 . The performance parameters of the designed tag are also compared with some commercially available designs.

Keywords

metallic platformparasite stripsRFID Tagtapered patchUHFwideband

Information

Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 17 , Issue 1 , February 2025 , pp. 11 - 19
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Copyright
© The Author(s), 2025. Published by Cambridge University Press in association with The European Microwave Association.

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