A Broadband Dual-polarized Antenna for 2G/3G/4G/5G Base Station Applications

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.360912

Ya-li Chen, Yao‐Zong Sui, Zhiqun Yang, Xiaoyun Qu, Weihua Zong

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引用次数: 3

Abstract

─ 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 dualhexagon 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 openbox 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°± 5° 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° directions. The proposed antenna has a small overall size of 145×145×35.6 mm. Index Terms ─ 5G antenna, base station antenna, broadband antenna, dual-polarized antenna.

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一种适用于2G/3G/4G/5G基站的宽带双极化天线

─本文提出一种新型宽带基站天线元件，覆盖2G/3G/4G/5G频段。该天线由双偶极子辐射器和开箱形反射器组成。每个偶极子臂的主辐射部分设计为六边形，以提高带宽。为了进一步降低反射系数，采用了四个小的六边形寄生块。双极化是通过正交放置两个偶极子来激发的。为了提高天线增益，降低3.3 ~ 3.8 GHz半功率带宽(HPBW)，在辐射体下方放置了一个平面金属板，该金属板具有4个倒l形边。样机的制作和测量带宽为1.68 ~ 3.8 GHz，耦合低于-20 dB，稳定的HPBW为65°±5°，平均增益为8.5 dBi。交叉偏振分辨(XPD)值在轴向上优于20 dB，在±60°方向上优于10 dB。该天线的整体尺寸较小，为145×145×35.6毫米。索引术语─5G天线、基站天线、宽带天线、双极化天线。

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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.