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Low-profile microstrip patch antenna with simultaneous enhanced bandwidth, beamwidth, and cross-polarisation under dual resonance
Neng-Wu Liu1,2,3; Sen Gao1; Lei Zhu2; Lu-Yang Ji4; Lin Yang1; Hui-Li Zheng1
2020-02-19
Source PublicationIET Microwaves, Antennas and Propagation
ISSN1751-8725
Volume14Issue:5Pages:360-365
Abstract

A low-profile microstrip patch antenna (MPA) with wide bandwidth, wide beamwidth, and reduced cross-polarisation is proposed here. Firstly, the far-zone radiated fields of the MPA are deeply studied to improve its radiation performance. It demonstrates that the E-plane half-power beamwidth (HPBW) of the antenna could be progressively widened by using a single equivalent slot instead of two equivalent slots. Meanwhile, its high cross-polarisation of the H-plane radiation patterns could be successfully decreased down by enlarging the width of the rectangular patch and loading the shorting pins. Secondly, the input impedance of the MPA operating in the fundamental mode is extensively investigated. The results illustrate that the resonant frequencies of its dual modes could be reallocated in proximity to each other for bandwidth enhancement by properly selecting the dimension of radiating patches. Finally, the proposed antenna is fabricated and tested. Experimental results show that the antenna has gained an improved bandwidth (|S|<-10 dB) of about 12% ranging from 2.70 to 3.03 GHz, while keeping a thin thickness of about 0.029 free-space wavelength. Besides, its H-plane cross-polarisation is kept below -20 dB. Most importantly, the E-plane HPBW of the antenna is extended to around 140° over the wide band.

DOI10.1049/iet-map.2019.0565
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000526668700003
PublisherINST ENGINEERING TECHNOLOGY-IET, MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorLin Yang
Affiliation1.National Key Laboratory of Antennas and Microwave Technology,Xidian University,Xi'an,710071,China
2.Department of Electrical and Computer Engineering,Faculty of Science and Technology,University of Macau,Macao
3.State Key Laboratory of Millimeter Waves,Nanjing,210096,China
4.School of Electronic Engineering,Northwestern Polytechnical University,Xi'an,710071,China
First Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Neng-Wu Liu,Sen Gao,Lei Zhu,et al. Low-profile microstrip patch antenna with simultaneous enhanced bandwidth, beamwidth, and cross-polarisation under dual resonance[J]. IET Microwaves, Antennas and Propagation,2020,14(5):360-365.
APA Neng-Wu Liu,Sen Gao,Lei Zhu,Lu-Yang Ji,Lin Yang,&Hui-Li Zheng.(2020).Low-profile microstrip patch antenna with simultaneous enhanced bandwidth, beamwidth, and cross-polarisation under dual resonance.IET Microwaves, Antennas and Propagation,14(5),360-365.
MLA Neng-Wu Liu,et al."Low-profile microstrip patch antenna with simultaneous enhanced bandwidth, beamwidth, and cross-polarisation under dual resonance".IET Microwaves, Antennas and Propagation 14.5(2020):360-365.
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