Proposal and design of an end-fire slot antenna with low back-lobe and improved front-to-back ratio
Xu,Yanhui; Liu,Neng Wu; Zhu,Lei
2021-02-01
Source PublicationInternational Journal of RF and Microwave Computer-Aided Engineering
ISSN1096-4290
Volume31Issue:2
AbstractThis paper has proposed an end-fire slot antenna with back-lobe level suppression and front-to-back ratio (FBR) improvement. At first, the radiation characteristic of the conventional λ/4 slot antenna are meticulously investigated to initially demonstrate that its FBR can be maintained as high as about 6 dB. Then, the antenna under three different boundary conditions is deeply studied. The results reveal that the currents along the two sides of the metal ground are parallel to the slot radiator, resulting to affect the back-lobe radiation level to a great degree. As such, a pair of rectangular slots is properly etched on the two sides of the metal ground for further reduction of back-lobe radiation level and FBR improvement. Finally, a prototype antenna operating at 4.7 GHz is designed and fabricated. The measured results demonstrate that the back-lobe is indeed greatly decreased as predicted and the measured FBR of the proposed slot antenna exceeds 25 dB, where an increment of about 19 dB than the conventional λ/4 slot counterpart is successfully obtained, thereby evidently exhibiting better end-fire radiation performance.
Keywordend-fire radiation front-to-back ratio slot antenna
DOI10.1002/mmce.22508
URLView the original
Language英语
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Cited Times [WOS]:0   [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,Macao
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Xu,Yanhui,Liu,Neng Wu,Zhu,Lei. Proposal and design of an end-fire slot antenna with low back-lobe and improved front-to-back ratio[J]. International Journal of RF and Microwave Computer-Aided Engineering,2021,31(2).
APA Xu,Yanhui,Liu,Neng Wu,&Zhu,Lei.(2021).Proposal and design of an end-fire slot antenna with low back-lobe and improved front-to-back ratio.International Journal of RF and Microwave Computer-Aided Engineering,31(2).
MLA Xu,Yanhui,et al."Proposal and design of an end-fire slot antenna with low back-lobe and improved front-to-back ratio".International Journal of RF and Microwave Computer-Aided Engineering 31.2(2021).
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