Journal
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
Volume 114, Issue -, Pages 481-493Publisher
EMW PUBLISHING
DOI: 10.2528/PIER11021601
Keywords
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Funding
- National High Technology Research Plan of China [(863)2009ZX03007-003]
- Siemens LTD., China
- Program for new Century Excellent Talents [NECT-07-0108]
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An eye-shaped segmented (ESS) antenna is presented for ultra-high frequency (UHF) near-field radio frequency identification (RFID) applications. The proposed antenna shows in-phase current even though the perimeter of the eye-shaped loop is comparable to the operating wavelength. The ESS antenna is fabricated on a FR4 printed circuit board (PCB) and embedded in a metal cavity with an overall size of 250 x 180 x 50 mm(3). The measured bandwidth is around 11 MHz (860-871 MHz) under the condition of VSWR less than 2.0, which covers the Europe standard (865 MHz-868 MHz) and agrees well with the simulated results. Finally, as a reader antenna in the RFID system, the measured read distance and read width can achieve 16.1 cm and 8 cm, respectively. The ESS antenna is desirable for UHF near-field RFID reader applications.
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