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

被引:3
作者
Chen, Ya-Li [1 ]
Sui, Yao-Zong [1 ]
Yang, Zhi-Qun [2 ]
Qu, Xiao-Yun [2 ]
Zong, Wei-Hua [1 ]
机构
[1] Qingdao Univ, Sch Elect & Informat, Qingdao 266000, Peoples R China
[2] Shandong Inst Space Elect Technol, Yantai 264003, Peoples R China
来源
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL | 2021年 / 36卷 / 09期
关键词
5G antenna; base station antenna; broadband antenna; dual-polarized antenna;
D O I
10.47037/2021.ACES.J.360912
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
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).
引用
收藏
页码:1202 / 1208
页数:7
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