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Triple-resonant wideband 1.5-wavelength sectorial dipole antenna
Chen-Xin Pan1; Wen-Jun Lu1,2; Wen-Qi Jia1; Lei Zhu3
Source PublicationInternational Journal of RF and Microwave Computer-Aided Engineering

A novel wideband, triple-resonant sectorial dipole antenna with simple configuration is advanced. The antenna is evolved from a 1.5-wavelength prototype electric dipole, which is backed by a circular metallic planar reflector. The flared angle of the sectorial radiator and the corresponding usable resonant modes for wideband radiation is determined by mode synthesis chart. As numerically and experimentally validated, the flared angles of the principal dipole should be 300°, with its radius approximately equal to 0.23-wavelength centered at 2.4 GHz. By introducing a pair of tuning stubs and a pair of slits along circumference, three resonant modes simultaneously excited in a single sectorial dipole to generate a wideband, triple-resonant radiation characteristic. Prototype antennas are then fabricated to experimentally validate the design approach. It is shown that the proposed antenna exhibits a unidirectional pattern with its impedance bandwidth over 73.3%. Meanwhile, stable radiation patterns with gain fluctuation less than 2.4 dB, low cross polarization level of −27 dB, and maximum gain of 6.9 dBi are realized within the same frequency range.

KeywordSectorial Dipole Antenna Triple-mode Resonance Wideband Antenna
URLView the original
Indexed BySCIE
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Interdisciplinary Applications ; Engineering, Electrical & Electronic
WOS IDWOS:000644421400001
Scopus ID2-s2.0-85109234496
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Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
Corresponding AuthorWen-Jun Lu
Affiliation1.College of Communications and Information Engineering, Jiangsu Key Laboratory of Wireless Communications, Nanjing University of Posts and Telecommunications, Nanjing, China
2.Key Laboratory of Wireless Sensor Network and Communication, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
3.Faculty of Science and Technology, University of Macau, Macao
Recommended Citation
GB/T 7714
Chen-Xin Pan,Wen-Jun Lu,Wen-Qi Jia,et al. Triple-resonant wideband 1.5-wavelength sectorial dipole antenna[J]. International Journal of RF and Microwave Computer-Aided Engineering,2021,31(8).
APA Chen-Xin Pan,Wen-Jun Lu,Wen-Qi Jia,&Lei Zhu.(2021).Triple-resonant wideband 1.5-wavelength sectorial dipole antenna.International Journal of RF and Microwave Computer-Aided Engineering,31(8).
MLA Chen-Xin Pan,et al."Triple-resonant wideband 1.5-wavelength sectorial dipole antenna".International Journal of RF and Microwave Computer-Aided Engineering 31.8(2021).
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