@inproceedings{d8451f03dc894296beef8d9e17fb3cc9,
title = "Dual-band circularly polarized antenna for RFID reader applications",
abstract = "This paper presents a novel design of dual-band and circularly-polarized antenna for RFID reader applications. Aperture-coupled ring radiators at 900MHz and 2.4GHz were adopted for dual-band operation. The coupling apertures were arranged orthogonally with proper phase offset to achieve circular polarization (CP) at both bands. The fabricated prototype exhibited good impedance bandwidth covering both UHF (902MHz 928MHz) and microwave (2.4GHz 2.5GHz) bands. Additionally, an axial ratio of less than 3 dB with better than 5dBi gain was achieved at both bands.",
author = "Lin, {Shin Chiang} and Huang, {Ting Jui} and Heng-Tung Hsu",
year = "2012",
doi = "10.1109/APS.2012.6349201",
language = "English",
isbn = "9781467304627",
series = "IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)",
booktitle = "2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings",
note = "Joint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012 ; Conference date: 08-07-2012 Through 14-07-2012",
}