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

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        09174784.pdf (PDF, 3Mb)
        Author
        Yang, Q.
        Gao, S.
        Luo, Q.
        Wen, L.
        Ban, Y. -L.
        Yang, X. -X.
        Ren, X.
        Wu, J.
        Attention
        2299/24026
        Abstract
        This article 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 2×8antenna array is designed to exemplify the antenna element performance. To improve the 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.
        Publication date
        2021-03-01
        Published in
        IEEE Transactions on Antennas and Propagation
        Published version
        https://doi.org/10.1109/TAP.2020.3017388
        Other links
        http://hdl.handle.net/2299/24026
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