volume | PIER Journals

2014-03-24

Wideband Dual-Polarized Crossed-Dipole Antenna with Parasitical Crossed-Strip for Base Station Applications

Shaoli Zuo,

Dr. Shaoli Zuo

Xidian University

China

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Qiong-Qiong Liu,

Dr. Qiong-Qiong Liu

Science and Technology on Antenna and Microwave Laboratory

Xidian University

China

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Zhi-Ya Zhang

Dr. Zhi-Ya Zhang

School of Electronic Engineering

Xidian University

China

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Progress In Electromagnetics Research C, Vol. 48, 159-166, 2014

doi:10.2528/PIERC14021101

Abstract

A wideband dual-polarized crossed-dipole antenna with parasitical crossed-strip for base-station applications is presented. By using a pair of orthogonal crossed-dipoles, two linear polarizations (+45°) are obtained. A parasitical crossed-strip is introduced to improve the impendence bandwidth and enhance the isolation (S₁₂) between the two orthogonal polarizations of the upper band. The antenna shows a wideband impedance characteristic about 34.9% for S₁₁≤-10 dB (+45° polarization) and S₂₂≤-10 dB (-45° polarization). High isolation (S₁₂≤-32 dB) between the two polarizations in the required band are obtained. The stable peak gain, unidirectional radiation patterns and low cross-polarization over the whole operating band are also achieved. Due to its good performance, simple fabrication technique and low cost, the antenna is very suitable for potential base station applications in mobile communication such as DCS, PCS and UMTS.

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Shaoli Zuo, Qiong-Qiong Liu, and Zhi-Ya Zhang, "Wideband Dual-Polarized Crossed-Dipole Antenna with Parasitical Crossed-Strip for Base Station Applications," Progress In Electromagnetics Research C, Vol. 48, 159-166, 2014.
doi:10.2528/PIERC14021101

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