A SINGLE-FEED CIRCULARLY POLARIZED MAGNETOELECTRIC DIPOLE ANTENNA FOR WIDEBAND WIRELESS APPLICATIONS | Zendy

Chaoqiang Feng | Zendy; FuShun Zhang | Zendy; Han-Jing Zhang | Zendy; Jun-Xiu Su | Zendy

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A SINGLE-FEED CIRCULARLY POLARIZED MAGNETOELECTRIC DIPOLE ANTENNA FOR WIDEBAND WIRELESS APPLICATIONS

Author(s) -

Chaoqiang Feng,

FuShun Zhang,

Han-Jing Zhang,

Jun-Xiu Su

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/pierm18010803

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

A wideband circularly polarized magnetoelectric dipole antenna fed by a Γ-shaped structure is investigated. In the design, a pair of vertical plates connected to ground work as a magnetic dipole, while a pair of rotationally symmetric horizontal plates with strips bent downward work as an electric dipole. And four metallic plates are vertically added on edges of the ground, forming a cavity reflector with four gaps to improve the axial ratio (AR) bandwidth. Measurements show that the antenna has a wide impedance bandwidth of 102% from 1.35 GHz to 4.2 GHz for voltage standing wave ratio (VSWR) ≤ 2 and a 3-dB AR bandwidth of 79.7% from 1.6 GHz to 3.72 GHz, over which the antenna gain varies from 5.4 dBic to 10.6 dBic. Furthermore, the antenna exhibits right-hand circular polarization and has good unidirectional radiation characteristic. The proposed antenna can be applied to wideband wireless applications.

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