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Design Approach for Low-Profile Tri-Polarization Patch Antenna With Simultaneous Harmonic Suppression
Neng-Wu Liu1; Lei Zhu2; Zhong-Xun Liu1; Guang Fu1; Ying Liu1
Source PublicationIEEE Transactions on Antennas and Propagation

A novel design approach to achieve harmonic suppression of a low-profile microstrip patch antenna (MPA) under tri-polarization is proposed. Herein, the tri-polarization consists of the left-handed circular polarization (LHCP), right-handed circular polarization (RHCP), and linear-polarization (LP). First, the resonant frequencies of the traditional MPA are deeply studied. It is demonstrated that a set of radiative modes are excited in a single patch resonator. In order to suppress a few undesired modes, an array of shorting vias is loaded around two edges of the quarter patch1. Then, a linear slot is introduced to move dual orthogonal modes closely to each other, resulting in achieving LHCP patterns with harmonic suppression. Similarly, both of RHCP patterns and harmonic suppression are acquired for the quarter patch2 via this method. After that, the shorting vias and slots are adopted on the half patch3, aiming to suppress or push up higher modes for LP generation and harmonic suppression. Lastly, all these three patches are integrated with each other for size reduction. Finally, the proposed MPA is fabricated and measured. The results illustrate that the antenna has satisfactorily gained LHCP, RHCP, and LP radiation patterns of around 2.65 GHz. Besides, the volume of the radiator (0.0058 λ03, λ0 is the free-space wavelength) is only half of the traditional counterpart (0.01λ03). Additionally, the port isolation is kept as large as about 22 dB in the operating band. Most importantly, the harmonic suppression of around 2.7f0 (f0 is the operating frequency) is successfully acquired without extra feeding circuits.

KeywordCompact Size Harmonic Suppression Microstrip Patch Antenna (Mpa) Tri-polarization
URLView the original
Indexed BySCIE
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000778971200006
Scopus ID2-s2.0-85124066391
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
Corresponding AuthorLei Zhu; Zhong-Xun Liu
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
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Neng-Wu Liu,Lei Zhu,Zhong-Xun Liu,et al. Design Approach for Low-Profile Tri-Polarization Patch Antenna With Simultaneous Harmonic Suppression[J]. IEEE Transactions on Antennas and Propagation,2022,70(4):2401-2410.
APA Neng-Wu Liu,Lei Zhu,Zhong-Xun Liu,Guang Fu,&Ying Liu.(2022).Design Approach for Low-Profile Tri-Polarization Patch Antenna With Simultaneous Harmonic Suppression.IEEE Transactions on Antennas and Propagation,70(4),2401-2410.
MLA Neng-Wu Liu,et al."Design Approach for Low-Profile Tri-Polarization Patch Antenna With Simultaneous Harmonic Suppression".IEEE Transactions on Antennas and Propagation 70.4(2022):2401-2410.
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