On-metal UHF-RFID passive tags based on complementary split-ring resonators

Simone Zuffanelli, Gerard Zamora, Ferran Paredes, Pau Aguila, Ferran Martin, Jordi Bonache

Research output: Contribution to journalArticleResearchpeer-review

23 Citations (Scopus)


© The Institution of Engineering and Technology. The use of complementary split-ring resonators (CSRRs) as radiating elements in low-profile on-metal ultra-high-frequency radio-frequency identification (UHF-RFID) tags is explored in this study. First, the radiation properties of the edge-coupled and the non-bianisotropic (NB-CSRR) versions of the CSRR are studied. The tag design strategy is then discussed in detail. On that basis, a compact (λ0/7 × λ0/7) low-profile (1.27 mm) tag prototype based on the non-bianisotropic version of the CSRR (NB-CSRR) antenna is designed and manufactured to operate in the North-American UHF-RFID band. The experimental results validate the theoretical and simulated behaviour, and exhibit a maximum read range of 6.8 m.
Original languageEnglish
Pages (from-to)1040-1044
JournalIET Microwaves, Antennas and Propagation
Issue number7
Publication statusPublished - 2 Jun 2017


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