A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications

A broadband circularly polarized stacked probe-fed antenna suitable for UHF RFID applications is presented and studied. The proposed antenna is fed by two probes which are connected to a hybrid coupler. Two parasitic patches are stacked above a primary probe-fed patch to enhance the bandwidth of the...

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Main Authors: Hang Leong Chung, Xianming Qing, Zhi Ning Chen
Format: Article
Language:English
Published: Hindawi Limited 2007-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2007/76793
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spelling doaj-2d70a0f2a8554459aa21f5c8bf8da7222020-11-25T00:49:53ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772007-01-01200710.1155/2007/7679376793A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID ApplicationsHang Leong Chung0Xianming Qing1Zhi Ning Chen2Institute for Infocomm Research, 20 Science Park Road, 02-21/25 TeleTech Park, Singapore Science Park II 117674, SingaporeInstitute for Infocomm Research, 20 Science Park Road, 02-21/25 TeleTech Park, Singapore Science Park II 117674, SingaporeInstitute for Infocomm Research, 20 Science Park Road, 02-21/25 TeleTech Park, Singapore Science Park II 117674, SingaporeA broadband circularly polarized stacked probe-fed antenna suitable for UHF RFID applications is presented and studied. The proposed antenna is fed by two probes which are connected to a hybrid coupler. Two parasitic patches are stacked above a primary probe-fed patch to enhance the bandwidth of the antenna. The optimized antenna prototype achieves gain of more than 6.5 dBic, axial ratio of less than 3.0 dB, and return loss of less than −15 dB over the UHF band of 820–980 MHz (17.7%). Parametric studies are carried out to demonstrate the effects of antenna geometry parameters on the performance. The proposed antenna can be a good candidate for UHF RFID applications.http://dx.doi.org/10.1155/2007/76793
collection DOAJ
language English
format Article
sources DOAJ
author Hang Leong Chung
Xianming Qing
Zhi Ning Chen
spellingShingle Hang Leong Chung
Xianming Qing
Zhi Ning Chen
A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications
International Journal of Antennas and Propagation
author_facet Hang Leong Chung
Xianming Qing
Zhi Ning Chen
author_sort Hang Leong Chung
title A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications
title_short A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications
title_full A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications
title_fullStr A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications
title_full_unstemmed A Broadband Circularly Polarized Stacked Probe-Fed Patch Antenna for UHF RFID Applications
title_sort broadband circularly polarized stacked probe-fed patch antenna for uhf rfid applications
publisher Hindawi Limited
series International Journal of Antennas and Propagation
issn 1687-5869
1687-5877
publishDate 2007-01-01
description A broadband circularly polarized stacked probe-fed antenna suitable for UHF RFID applications is presented and studied. The proposed antenna is fed by two probes which are connected to a hybrid coupler. Two parasitic patches are stacked above a primary probe-fed patch to enhance the bandwidth of the antenna. The optimized antenna prototype achieves gain of more than 6.5 dBic, axial ratio of less than 3.0 dB, and return loss of less than −15 dB over the UHF band of 820–980 MHz (17.7%). Parametric studies are carried out to demonstrate the effects of antenna geometry parameters on the performance. The proposed antenna can be a good candidate for UHF RFID applications.
url http://dx.doi.org/10.1155/2007/76793
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