A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications

In this paper, a novel compact, dual-polarized, dual-broadband shared-aperture antenna array unit consisting of one lower-band (LB) element and four upper-band (UB) elements underneath is proposed for 5G mobile communications. L-shaped parasitic branches are introduced in the LB to broaden the bandw...

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Main Authors: Yejun He, Wei Huang, Zhou He, Long Zhang, Xiaobing Gao, Zhi Zeng
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Open Journal of Antennas and Propagation
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9770195/
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author Yejun He
Wei Huang
Zhou He
Long Zhang
Xiaobing Gao
Zhi Zeng
author_facet Yejun He
Wei Huang
Zhou He
Long Zhang
Xiaobing Gao
Zhi Zeng
author_sort Yejun He
collection DOAJ
description In this paper, a novel compact, dual-polarized, dual-broadband shared-aperture antenna array unit consisting of one lower-band (LB) element and four upper-band (UB) elements underneath is proposed for 5G mobile communications. L-shaped parasitic branches are introduced in the LB to broaden the bandwidth while reducing the mutual coupling between the LB element and UB elements. Compared with the traditional lower-band dipole, the proposed LB element has far less influence on the electric field of the UB array, thus preserving their radiation patterns. To verify its performance, the antenna array unit is fabricated and experimentally demonstrated to achieve the bandwidth of 32.7% (0.69–0.96 GHz) in the LB and 45.5% (1.7–2.7 GHz) in the UB with a voltage standing wave ratio (VSWR) of lower than 1.5. High port isolation and stable radiation patterns are attained in both the LB and UB as required for dual-band base station antennas.
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spelling doaj.art-a8e00eabdf254b8388261eff8ab35b922022-12-22T00:36:03ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312022-01-01358359310.1109/OJAP.2022.31731599770195A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile CommunicationsYejun He0https://orcid.org/0000-0002-8564-5355Wei Huang1https://orcid.org/0000-0001-6738-6751Zhou He2https://orcid.org/0000-0002-4159-5536Long Zhang3https://orcid.org/0000-0003-0646-6699Xiaobing Gao4Zhi Zeng5College of Electronics and Information Engineering, Shenzhen University, Shenzhen, ChinaCollege of Electronics and Information Engineering, Shenzhen University, Shenzhen, ChinaDepartment of Mechanical Engineering, University of Maryland, College Park, MD, USACollege of Electronics and Information Engineering, Shenzhen University, Shenzhen, ChinaCollege of Electronics and Information Engineering, Shenzhen University, Shenzhen, ChinaCentral Research Institute, Sunway Communication Company Ltd., Shenzhen, ChinaIn this paper, a novel compact, dual-polarized, dual-broadband shared-aperture antenna array unit consisting of one lower-band (LB) element and four upper-band (UB) elements underneath is proposed for 5G mobile communications. L-shaped parasitic branches are introduced in the LB to broaden the bandwidth while reducing the mutual coupling between the LB element and UB elements. Compared with the traditional lower-band dipole, the proposed LB element has far less influence on the electric field of the UB array, thus preserving their radiation patterns. To verify its performance, the antenna array unit is fabricated and experimentally demonstrated to achieve the bandwidth of 32.7% (0.69–0.96 GHz) in the LB and 45.5% (1.7–2.7 GHz) in the UB with a voltage standing wave ratio (VSWR) of lower than 1.5. High port isolation and stable radiation patterns are attained in both the LB and UB as required for dual-band base station antennas.https://ieeexplore.ieee.org/document/9770195/Cross-band decouplingdual-polarizedinterleaved scheme5G mobile communicationsbase station antennas
spellingShingle Yejun He
Wei Huang
Zhou He
Long Zhang
Xiaobing Gao
Zhi Zeng
A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications
IEEE Open Journal of Antennas and Propagation
Cross-band decoupling
dual-polarized
interleaved scheme
5G mobile communications
base station antennas
title A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications
title_full A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications
title_fullStr A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications
title_full_unstemmed A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications
title_short A Novel Cross-Band Decoupled Shared-Aperture Base Station Antenna Array Unit for 5G Mobile Communications
title_sort novel cross band decoupled shared aperture base station antenna array unit for 5g mobile communications
topic Cross-band decoupling
dual-polarized
interleaved scheme
5G mobile communications
base station antennas
url https://ieeexplore.ieee.org/document/9770195/
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