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2016-10-05
Wideband Double-Layered Dielectric-Loaded Dual-Polarized Magneto-Electric Dipole Antenna
By
Progress In Electromagnetics Research Letters, Vol. 63, 23-28, 2016
Abstract
This paper proposes a wideband dual-polarized magneto-electric dipole antenna composed of two pairs of vertical shorted patches and two pairs of horizontal double-layered planar dipoles. To achieve dual-polarization radiation, two orthogonal Γ-shaped stepped-impedance strip feed lines are designed to excite the antenna. The regions between the vertical shorted patches are loaded by dielectric materials to reduce the antenna profile. In addition, the antenna is backed with a rectangular cavity-shaped reflector to improve radiation pattern stability and diminish back radiation. Experimental results demonstrate that the proposed antenna has obtained a wide impedance bandwidth of 57.1% from 1.5 to 2.7 GHz and high port isolation of better than 30 dB within the bandwidth. The average antenna gain is about 9.7 dBi with a variation of below ±1.5 dB and the radiation patterns are unidirectional, symmetric with low back radiation, and low cross-polarization radiation across the entire operating band.
Citation
Changqing Wang, Zhaoxian Zeng, Jianxing Li, Hongyu Shi, and Anxue Zhang, "Wideband Double-Layered Dielectric-Loaded Dual-Polarized Magneto-Electric Dipole Antenna," Progress In Electromagnetics Research Letters, Vol. 63, 23-28, 2016.
doi:10.2528/PIERL16081308
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