Wide beamwidth planar self-balanced magnetic dipole antenna with enhanced front-to-back ratio
Wu,Han1; Lu,Wen Jun1; Shen,Cheng1; Zhu,Lei2
2020-05-01
Source PublicationInternational Journal of RF and Microwave Computer-Aided Engineering
ISSN1096-4290
Volume30Issue:5
AbstractA design approach to a novel planar self-balanced, wide beamwidth magnetic dipole antenna with high front-to-back ratio (FBR) is advanced. The principle for FBR enhancement is revealed at first. As seen, the back-lobe level can be effectively suppressed by adjusting the unbalanced current ratio (UCR) factor: By varying the radius of the circular sector magnetic dipole antenna on the bottom layer and incorporating an arc-shaped branch at the end of the parasitic strip, the UCR factor can be properly tuned, and the back-lobe level can be flexibly controlled. Then, a set of closed-form formulas is derived to provide basic design guidelines and determine the initial value of key parameters. Parametric studies on FBR are then carried out to attain the ultimate designs in a step-by-step manner. As numerically and experimentally verified at the 2.45-GHz band, the FBR of a planar, air-substrate magnetic dipole antenna is indeed increased to over 30 dB with broadened E-/H-plane half-power beamwidth up to 130°/90°. Good agreement between the theoretical, numerical, and experimental results has evidently validated the proposed antenna design approach.
Keywordhigh front-to-back ratio magnetic dipole planar antenna self-balanced wide beamwidth
DOI10.1002/mmce.22171
URLView the original
Language英语
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
Affiliation1.Jiangsu Key Laboratory of Wireless Communications,College of Communications and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing,China
2.Faculty of Science and Technology,University of Macau,Macao
Recommended Citation
GB/T 7714
Wu,Han,Lu,Wen Jun,Shen,Cheng,et al. Wide beamwidth planar self-balanced magnetic dipole antenna with enhanced front-to-back ratio[J]. International Journal of RF and Microwave Computer-Aided Engineering,2020,30(5).
APA Wu,Han,Lu,Wen Jun,Shen,Cheng,&Zhu,Lei.(2020).Wide beamwidth planar self-balanced magnetic dipole antenna with enhanced front-to-back ratio.International Journal of RF and Microwave Computer-Aided Engineering,30(5).
MLA Wu,Han,et al."Wide beamwidth planar self-balanced magnetic dipole antenna with enhanced front-to-back ratio".International Journal of RF and Microwave Computer-Aided Engineering 30.5(2020).
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