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Compact Dual-Polarized Shared-Dipole Antennas for Base Station Applications

Wen, Le-Hu, Gao, Steven, Luo, Qi, Mao, Chun-Xu, Hu, Wei, Yin, Yingzeng, Zhou, Yonggang, Wang, Qiwei (2018) Compact Dual-Polarized Shared-Dipole Antennas for Base Station Applications. IEEE Transactions on Antennas and Propagation, . ISSN 0018-926X. (doi:10.1109/TAP.2018.2871717) (KAR id:69948)

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Crossed dipole antennas have been widely employed for dual-polarization in wireless communication systems in recent years. In this paper, a novel design concept of dual-polarized shared-dipole (DPSD) antenna is presented. Different from the traditional crossed dipole (CD) antennas, the arms of the DPSD antenna are shared for two orthogonal polarizations. This design technique leads to significant size reduction and high isolation compared to the traditional CD antennas. The operation principle of the proposed antenna is theoretically analyzed. To validate the presented design concept, two novel DPSD antennas are designed, fabricated and measured. The first design is a four-port DPSD antenna, which is a straightforward demonstration of the operation principle of the DPSD antenna. The second design is a highly integrated DPSD antenna, which avoids the use of feed network and provides a simple configuration to design the dual-polarized antenna. Both of the DPSD antennas are designed to operate at 1.7-2.7 GHz for base station applications. The simulated and measured results confirm that the two DPSD antennas have wide bandwidth with VSWR<1.5 and isolation>35 dB. In addition, stable gain and HPBW are obtained with the variance less than ±0.55 dB and ±3.5° respectively.

Item Type: Article
DOI/Identification number: 10.1109/TAP.2018.2871717
Uncontrolled keywords: Crossed dipole, dual-polarized, Base station, wideband antenna
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Steven Gao
Date Deposited: 06 Nov 2018 09:33 UTC
Last Modified: 16 Feb 2021 13:59 UTC
Resource URI: (The current URI for this page, for reference purposes)
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