Volume 31, Issue 7 e22687
RESEARCH ARTICLE

Broadband dual-polarized crossed-dipole antenna with tapered integrated balun for base-station applications

Liang-Hua Ye

Liang-Hua Ye

School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, China

State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China

Search for more papers by this author
Gang Liu

Gang Liu

School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, China

State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China

Search for more papers by this author
Yuan-Jun Li

Yuan-Jun Li

School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, China

State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China

Search for more papers by this author
Jian-Feng Li

Jian-Feng Li

School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, China

State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China

Search for more papers by this author
Zhenxin Hu

Corresponding Author

Zhenxin Hu

State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China

School of Automation, Guangdong University of Technology, Guangzhou, China

Correspondence

Zhenxin Hu, School of Automation, Guangdong University of Technology, Guangzhou 510006, China.

Email: [email protected]

Search for more papers by this author
Duo-Long Wu

Duo-Long Wu

School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, China

State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, China

Search for more papers by this author
First published: 07 April 2021
Citations: 7

Funding information: Natural Science Foundation of Guangdong Province, Grant/Award Number: 2020A1515010442; Open Foundation of Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing, Guilin University of Electronic Technology, Grant/Award Number: GXKL06190205

Abstract

A ± 45° dual-polarized dipole antenna with low profile and stable radiation pattern over a wide operating band for base station is proposed. The antenna is formed by two polygon-shaped dipoles and a shaped metallic reflector. Two baluns with tapered structure are used to excite the dipoles for dual-polarized radiation and enhancing the impedance matching and bandwidth, while the shaped-reflector is used to obtain stable radiation pattern in the horizontal plane during a wide frequency band. The design principles of crossed dipoles, baluns and reflector is described in detail. The proposed antenna achieves wide impedance bandwidth of 67% for VSWR<1.5, and high-isolation better than 31 dB over the operating band. In addition, the 3 dB beamwidth in the horizontal plane of the antenna is stabilized within the range of 66.3° ± 2.8°. These performances make the presented antenna applicable for mobile communications.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.