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A wideband UHF RFID reader antenna array with bow-tie elements

Boursianis Achilles, Dimitriou Antonis G., Bletsas Aggelos, Sahalos, John N

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URIhttp://purl.tuc.gr/dl/dias/191672E2-9AB5-4576-BC89-707DA7449FB3-
Identifierhttps://ieeexplore.ieee.org/document/7481912-
Identifierhttps://doi.org/10.1109/EuCAP.2016.7481912-
Languageen-
TitleA wideband UHF RFID reader antenna array with bow-tie elementsen
CreatorBoursianis Achillesen
CreatorDimitriou Antonis G.en
CreatorBletsas Aggelosen
CreatorΜπλετσας Αγγελοςel
CreatorSahalos, John Nen
PublisherInstitute of Electrical and Electronics Engineersen
Content SummaryThis paper presents the design procedure of a wideband UHF RFID reader antenna with polarization diversity suitable for searching tagged items. The antenna consists of a microstrip array with alternating orthogonal bow-tie elements, which are fed in series by a pair of microstrip lines. The elements are designed to provide the required bandwidth. The inter-element distance is adjusted to be about 0.8λ at the center frequency, whereas the elements provide in-phase excitation and create two orthogonal electric field components that give beams with polarization diversity. Simulated results indicate that the bandwidth covers the frequency bands of ETSI and FCC (865-928 MHz) standards. Regarding the coverage, it was deduced that the antenna can identify tagged items in a semi-cylindrical volume around its axis. The radius of coverage depends on the input power and tag sensitivity. A case study of reading tagged items in front of a cabinet with shelves is presented.en
Type of ItemΠλήρης Δημοσίευση σε Συνέδριοel
Type of ItemConference Full Paperen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2018-10-12-
Date of Publication2016-
SubjectBow-tie elementsen
SubjectReader antennaen
SubjectRFIDen
Bibliographic CitationA. Boursianis, A. Dimitriou, A. Bletsas and J. N. Sahalos, "A wideband UHF RFID reader antenna array with bow-tie elements," in 10th European Conference on Antennas and Propagation, 2016. doi: 10.1109/EuCAP.2016.7481912en

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