DESIGN OF A COMPACT WIDEBAND CIRCULARLY POLARIZED CROSSED-DIPOLE ANTENNA USING A MODIFIED CAVITY | Zendy

Kaiwen Yang | Zendy; FuShun Zhang | Zendy; Chao Li | Zendy

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DESIGN OF A COMPACT WIDEBAND CIRCULARLY POLARIZED CROSSED-DIPOLE ANTENNA USING A MODIFIED CAVITY

Author(s) -

Kaiwen Yang,

FuShun Zhang,

Chao Li

Publication year - 2018

Publication title -

progress in electromagnetics research m

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.216

H-Index - 31

ISSN - 1937-8726

DOI - 10.2528/pierm18052702

Subject(s) - wideband , physics , antenna (radio) , turnstile antenna , dipole antenna , dipole , circular polarization , optics , coaxial antenna , telecommunications , computer science , microstrip , quantum mechanics

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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