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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-07-04
Design of a Compact Wideband Circularly Polarized Crossed-Dipole Antenna Using a Modified Cavity
By
Kaiwen Yang,

    Dr. Kaiwen Yang

    Xidian University

    China

    Homepage

Fu-Shun Zhang,

    Dr. Fu-Shun Zhang

    Xidian University

    China

    Homepage

Chao Li

    Dr. Chao Li

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 70, 71-79, 2018
doi:10.2528/PIERM18052702 | Google Scholar

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.
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Citation
Kaiwen Yang, Fu-Shun Zhang, and 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
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