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2018-07-04
Design of a Compact Wideband Circularly Polarized Crossed-Dipole Antenna Using a Modified Cavity
By
Progress In Electromagnetics Research M, Vol. 70, 71-79, 2018
Abstract
A wideband right-hand circularly polarized (RHCP) crossed-dipole antenna with wide impedance bandwidth (IBW) and axial ratio bandwidth (ARBW) is proposed in this paper. A pair of dipoles with modified arms and a novel back-cavity are introduced to enhance both the IBW and ARBW of a conventional crossed-dipole antenna. Simulated and measured results indicate that the proposed structure can improve the circularly polarized (CP) characteristics significantly. The IBW (|S11|<-10 dB) and ARBW (AR<3 dB) are 100% and 89.1%, respectively. The total size is 0.4λ×0.4λ×0.15λ (λ being the corresponding free-space wavelength at the frequency of 2.2 GHz). With both the excellent CP operating bandwidth and compact size, the proposed antenna is attractive for broadband wireless communication systems.
Citation
Kaiwen Yang Fu-Shun Zhang Chao Li , "Design of a Compact Wideband Circularly Polarized Crossed-Dipole Antenna Using a Modified Cavity," Progress In Electromagnetics Research M, Vol. 70, 71-79, 2018.
doi:10.2528/PIERM18052702
http://www.jpier.org/PIERM/pier.php?paper=18052702
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