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首页> 外文期刊>Applied Computational Electromagnetics Society journal >A Broadband Dual-polarized Antenna for 2G/3G/4G/5G Base Station Applications
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A Broadband Dual-polarized Antenna for 2G/3G/4G/5G Base Station Applications

机译：用于2G / 3G / 4G / 5G基站应用的宽带双极化天线

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摘要

This paper presents a novel broadband base station antenna element covering 2G/3G/4G/5G bands. The proposed antenna consists of a dual-dipole radiator and an open-box shaped reflector. The main radiating portion of each dipole arm is designed with a dual hexagon shape to improve bandwidth. Four small hexagonal-shaped parasitic patches are adopted to further decrease the reflection coefficient. Dual polarization is excited by placing two dipoles orthogonally. The open box shaped reflector derives from a planar metal plate with four inverted L-shaped edges which are arranged below the radiator to enhance the antenna gain and reduce the half power bandwidth (HPBW) in 3.3-3.8 GHz. The prototype has been fabricated and measured with bandwidth of 1.68-3.8 GHz, coupling below-20 dB, stable HPBW with 65 degrees +/- 5 degrees and average gain of 8.5 dBi. The values of the cross-polarization discrimination (XPD) are better than 20 dB at the boresight and 10 dB within +/- 60 degrees directions. The proposed antenna has a small overall size of 145x145x35.6 mm(3).
机译：本文介绍了一种覆盖2G / 3G / 4G / 5G带的新型宽带基站天线元件。所提出的天线包括双偶极散热器和开孔形反射器。每个偶极臂的主要辐射部分设计有双六角形以改善带宽。采用四个小六边形寄生斑块进一步降低反射系数。通过将两个偶极性置于正交，可以激发双极化。开箱形反射器源于具有四个倒L形边缘的平面金属板，该边缘布置在散热器下方，以增强天线增益并在3.3-3.8GHz中减小半功率带宽（HPBW）。原型已经制造和测量，带宽为1.68-3.8 GHz，耦合低于-20dB，稳定的HPBW，65度+/- 5度，平均增益为8.5 dBi。交叉极化判别（XPD）的值在触摸斜体和10dB内优于20dB，在+/- 60度方向内。所提出的天线的总体尺寸小145x145x35.6mm（3）。

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