A slotted circularly-polarized patch antenna for near-field and far-field UHF RFID applications

A slotted circularly-polarized patch antenna for near-field and far-field UHF RFID applications
Title:
A slotted circularly-polarized patch antenna for near-field and far-field UHF RFID applications
Other Titles:
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)
Keywords:
Publication Date:
06 July 2014
Citation:
C. K. Goh, X. Qing and Z. N. Chen, "A slotted circularly-polarized patch antenna for near-field and far-field UHF RFID applications," 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), Memphis, TN, 2014, pp. 1514-1515. doi: 10.1109/APS.2014.6905083
Abstract:
A slotted patch antenna is proposed for near-field and far-field ultra high frequency (UHF) radio frequency identification (RFID) applications. By slotting the patch, the antenna is able to produce strong and uniform magnetic field in the near field and generate the circularly-polarized radiation in the far field. The fabricated antenna (90 mm × 90 mm × 4.5 mm) with 10-dB return loss and 3-dBic gain from 913 MHz to 924 MHz, achieves a 100% reading rate for arbitrary oriented near-field tag over a distance of 35 mm and offers a far-field tag reading up to 3.6 m. The antenna is suitable for portable near-field and far-field UHF RFID readers.
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PublisherCopyrights
Funding Info:
Description:
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
ISSN:
1522-3965
1947-1491
ISBN:
978-1-4799-3537-6
978-1-4799-3540-6
978-1-4799-3538-3
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