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Dual-Band High-Gain Differentially Fed Circular Patch Antenna Working in TM11 and TM12 Modes
Xiao Zhang; Lei Zhu
2018-03-26
Source PublicationIEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
ISSN0018-926X
Volume66Issue:6Pages:3160-3165
Abstract

A differentially fed circular patch antenna working in TM 11 and TM 12 modes is proposed for dual-band high-gain and stable radiation patterns. A set of shorting pins are loaded in circular contours underneath the circular patch to substantially increase the resonant frequency of TM 11 mode, and the radiation gain in lower band can be hence effectively enhanced due to the enlarged patch size at resonance. Meanwhile, a narrow slot is introduced to the center of patch, in order to interrupt the out-of-phase current of TM 12 mode on patch for sidelobe reduction. As the electric current distribution on patch is significantly reshaped by the slot, the antennas act like a full-wave dipole in this case, so both high gain and low sidelobe level are realized in upper band. Besides, by properly adjusting the shorting positions of pins and length of slot, the antenna can be well matched in the desired 3.6 and 5.9 GHz wireless local area network bands. Simulated and measured results show that at least 10 dBi realized gain can be obtained in both the lower and upper bands, and the patterns in the two bands show agreeable beamwidths.

KeywordDual Bands High Gain Shorting Pins Sidelobe Reduction
DOI10.1109/TAP.2018.2819704
URLView the original
Indexed BySCIE
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000433952200048
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
The Source to ArticleWOS
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Cited Times [WOS]:12   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
AffiliationDepartment of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, China
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Xiao Zhang,Lei Zhu. Dual-Band High-Gain Differentially Fed Circular Patch Antenna Working in TM11 and TM12 Modes[J]. IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,2018,66(6):3160-3165.
APA Xiao Zhang,&Lei Zhu.(2018).Dual-Band High-Gain Differentially Fed Circular Patch Antenna Working in TM11 and TM12 Modes.IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,66(6),3160-3165.
MLA Xiao Zhang,et al."Dual-Band High-Gain Differentially Fed Circular Patch Antenna Working in TM11 and TM12 Modes".IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 66.6(2018):3160-3165.
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