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Single-Layer Dual-Mode Microstrip Antenna with No Feeding Network for Pattern Diversity Application
Hui Deng1; Lei Zhu1; Neng-Wu Liu1,2; Zhong-Xun Liu1
2020-11-02
Source PublicationIEEE Antennas and Wireless Propagation Letters
ISSN1536-1225
Volume19Issue:12Pages:2442-2446
Abstract

A single-layer microstrip patch antenna (MPA) under the operation of TM10 and TM20 modes for pattern diversity application without needing to rely on any feeding network is proposed for the first time in this letter. Initially, when a thorough analysis on mode excitation and inhibition of the MPA was deeply conducted, it demonstrated that its TM10 and TM20 modes could be independently excited by properly placing two coaxial ports underneath the radiating patch; thus, generating the desired broadside and bidirectional radiation patterns, respectively. Then, two sets of shorting pins are inserted below the core radiator, aiming to raise the resonant frequency of its TM10 mode in proximity to that of the TM20 mode. In addition, the maximum input resistances of these dual radiative modes decrease dramatically as f10 and f20 increase, which enables good impedance matching. Finally, the proposed MPA is designed, fabricated, and tested to validate the working principle. The results illustrate that this antenna can operate over the overlapping frequency ranges of 5.83-5.89 GHz with an envelope correlation coefficient of lower than 0.015, while keeping its low-profile thickness of 0.045λ0. Due to its unique advantages of low profile, simple structure, and good diversity, the proposed MPA could be a promising option in wireless local area network (WLAN)-related applications.

KeywordEnvelope Correlation Coefficient (Ecc) Low Profile Microstrip Patch Antenna (Mpa) Pattern Diversity Radiative Modes Single Layer
DOI10.1109/LAWP.2020.3035159
URLView the original
Indexed BySCIE
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000603036600089
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorLei Zhu
Affiliation1.Department of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau, China
2.National Key Laboratory of Antennas and Microwave Technology, Xidian University, Xi'an, China
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Hui Deng,Lei Zhu,Neng-Wu Liu,et al. Single-Layer Dual-Mode Microstrip Antenna with No Feeding Network for Pattern Diversity Application[J]. IEEE Antennas and Wireless Propagation Letters,2020,19(12):2442-2446.
APA Hui Deng,Lei Zhu,Neng-Wu Liu,&Zhong-Xun Liu.(2020).Single-Layer Dual-Mode Microstrip Antenna with No Feeding Network for Pattern Diversity Application.IEEE Antennas and Wireless Propagation Letters,19(12),2442-2446.
MLA Hui Deng,et al."Single-Layer Dual-Mode Microstrip Antenna with No Feeding Network for Pattern Diversity Application".IEEE Antennas and Wireless Propagation Letters 19.12(2020):2442-2446.
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