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Tunable Folded- Patch UHF RFID Tag Antenna Design using Theory of Characteristic Modes

  • Abubakar Sharif
  • , Jun Ouyang
  • , Hassan Tariq Chattha
  • , Qammer H. Abbasi
  • University of Electronic Science and Technology of China
  • Islamic University of Madinah
  • University of Glasgow

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

In this paper, a tunable ultra-high frequency (UHF) radio frequency identification (RFID) tag antenna is proposed using characteristic modes analysis. The proposed tag consists of a folded-patch and a feeding loop stacked on two substrate layers. The folded patch wrapped around 2 mm thick FR4 substrate and is optimized using characteristic modes to resonate around 915 MHz. The inductive feeding loop provides matching with RFID chip. This tag covers American RFID band form 905 MHz to 928 MHz with 10 dB return loss and can be tunable to European band by adding copper strips. Moreover, the proposed design is low cost, because it does not require any via or shorting pin. Furthermore, the measured read range of this tag is 3.5 m and 5 m in free space and above 200×200 m 2 metal plate respectively.

Original languageEnglish
Title of host publication2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages323-324
Number of pages2
ISBN (Electronic)9781538671023
DOIs
StatePublished - 2018
Externally publishedYes
Event2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Boston, United States
Duration: 8 Jul 201813 Jul 2018

Publication series

Name2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 - Proceedings

Conference

Conference2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018
Country/TerritoryUnited States
CityBoston
Period8/07/1813/07/18

Keywords

  • Characteristic modes
  • Impedance matching
  • Radio frequency identification
  • Tunable

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