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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2007-01-01
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Series: | International Journal of Antennas and Propagation |
Online Access: | http://dx.doi.org/10.1155/2007/76793 |
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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 |
work_keys_str_mv |
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1725250562757230592 |