Journal
ELECTRONICS LETTERS
Volume 54, Issue 5, Pages -Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/el.2017.4138
Keywords
UHF antennas; radiofrequency identification; antenna feeds; antenna radiation patterns; magnetic fields; multiple-port reader antenna; three modes; UHF RFID applications; ultra-high frequency radiofrequency identification near-field applications; ultra-high frequency radiofrequency identification far-field applications; radiation properties; far-field radiation; orthogonal polarisations; magnetic field coupling; European UHF bands; Chinese UHF bands; frequency 820 MHz to 880 MHz
Categories
Funding
- Aviation Science Foundation Project [20161852017]
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A multiple-port reader antenna for ultra-high frequency (UHF) radio-frequency identification (RFID) near-field and far-field applications which has three modes is proposed and studied. Three fed-ports are designed into the structure, which provide different radiation properties. Specially, far-field radiation for two orthogonal polarisations and near-field operation based on magnetic field coupling can be modified by feeding different corresponding port. The RFID reader antenna can work at three different operations within 820-880 MHz, including European UHF (865-868 MHz) and Chinese UHF (840-845 MHz) bands. Design details, simulation, and measured results are also presented.
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