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Cavity-Backed Slot-Coupled Patch Antenna Array With Dual Slant Polarization for Millimeter-Wave Base Station Applications

Yang, Qingling, Gao, Steven, Wen, Lehu, Ban, Yong-Ling, Yang, Xuexia, Ren, Xiaofei, Wu, Jian (2020) Cavity-Backed Slot-Coupled Patch Antenna Array With Dual Slant Polarization for Millimeter-Wave Base Station Applications. IEEE Transactions on Antennas and Propagation, . ISSN 0018-926X. (doi:10.1109/TAP.2020.3017388) (KAR id:82375)

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This paper presents a novel dual slant polarized antenna for millimeter-wave (mmWave) base stations. Compared with the traditional slant polarized mmWave antennas, the proposed antenna offers the advantages of high cross-polarization discrimination (XPD), good aperture efficiency, simple structure, and low profile. The corner-fed substrate integrated waveguide (SIW) cavity is adopted to improve the port isolation and XPD of this slot-coupled antenna. Four corner-truncated patches connected by a thin cross strip are placed over the SIW cavity to increase the operation bandwidth. Then, a 2×8 antenna array is designed to exemplify the antenna element performance. To improve impedance matching, a shorted patch is introduced in designing the series feeding network and the power divider. The experimental results show that the 2-dB-down gain bandwidth of the proposed antenna array reaches 6.0% and the port isolation is better than 20 dB. The gain and XPD of the antenna array measure 16.7 dBi and 25 dB at the center frequency, respectively

Item Type: Article
DOI/Identification number: 10.1109/TAP.2020.3017388
Uncontrolled keywords: 5G, base station, cavity-backed antenna, dualpolarized antenna, millimeter-wave (mmWave), patch antenna, slant polarization, slot-coupled antenna, SIW cavity
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Steven Gao
Date Deposited: 05 Aug 2020 08:56 UTC
Last Modified: 16 Feb 2021 14:14 UTC
Resource URI: (The current URI for this page, for reference purposes)
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