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Filtering patch antenna on λ/4-resonator filtering topology: synthesis design and implementation
Wu, Qiongsen; Zhu, Lei; Zhang, Xiao
2017-12-10
Source PublicationIET MICROWAVES ANTENNAS & PROPAGATION
ISSN1751-8725
Volume11Issue:15Pages:2241-2246
Abstract

In this study, a novel filtering patch antenna (FPA) based on quarter-wavelength or /4-resonator filtering topology is presented, and its frequency response is efficiently synthesised to achieve the prescribed higher-order frequency selectivity. As the resonant patch radiator is capacitively fed by two inductively coupled /4 resonators, three transmission poles are created in the operating band to demonstrate the third-order bandpass filtering property. In design, two adjacent /4 resonators are coupled via a shorting pin as the K inverter, while one of them is coupled with the resonant patch via coupled line as the J inverter. As their equivalent parameters are numerically de-embedded, the overall equivalent filtering network of this proposed FPA is constituted and synthesised with the Chebyshev-function filtering response. Next, the relationship between the realisable fractional bandwidth and in-band return loss is thoroughly investigated for a patch radiator with its constant unloaded quality factor. Finally, a prototype FPA at 4.0GHz is designed, fabricated, and measured. The measured and simulated results are found in good agreement with each other, demonstrating a few attractive features of the proposed FPA, inclusive of wide operating bandwidth, sharp filtering selectivity, and flat radiation gain, as benefited by the three in-band poles.

DOI10.1049/iet-map.2017.0354
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Telecommunications
WOS SubjectEngineering, Electrical & Electronic ; Telecommunications
WOS IDWOS:000418718700021
PublisherINST ENGINEERING TECHNOLOGY-IET
The Source to ArticleWOS
Fulltext Access
Citation statistics
Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Corresponding AuthorZhu, Lei
AffiliationDepartment of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Macau SAR, People's Republic of China
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Wu, Qiongsen,Zhu, Lei,Zhang, Xiao. Filtering patch antenna on λ/4-resonator filtering topology: synthesis design and implementation[J]. IET MICROWAVES ANTENNAS & PROPAGATION,2017,11(15):2241-2246.
APA Wu, Qiongsen,Zhu, Lei,&Zhang, Xiao.(2017).Filtering patch antenna on λ/4-resonator filtering topology: synthesis design and implementation.IET MICROWAVES ANTENNAS & PROPAGATION,11(15),2241-2246.
MLA Wu, Qiongsen,et al."Filtering patch antenna on λ/4-resonator filtering topology: synthesis design and implementation".IET MICROWAVES ANTENNAS & PROPAGATION 11.15(2017):2241-2246.
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