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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2014-09-08
A Broadband Dual-Polarized Printed Antenna
By
Ruina Lian,

    Dr. Ruina Lian

    National Laboratory of Science and Technology on Antennas and Microwaves

    Xidian University

    China

    Homepage

Shaoshuai Zhang,

    Dr. Shaoshuai Zhang

    National Key Laboratory of Antennas and Microwave Technology

    Xidian University

    China

    Homepage

Ying-Zeng Yin,

    Professor Ying-Zeng Yin

    Xidian University

    China

    Homepage

Xue-Yan Song,

    Dr. Xue-Yan Song

    Science and Technology on Antenna and Microwave Laboratory

    Xidian University

    China

    Homepage

Hao Zhang

    Dr. Hao Zhang

    Science and Technology on Antenna and Microwave Laboratory

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 49, 23-29, 2014
doi:10.2528/PIERL14080101 | Google Scholar

Abstract
A low-profile broadband dual-polarized antenna with high isolation and low cross polarization is presented in this letter. The proposed antenna employs two different feeding mechanisms. On one hand, two out-of-phase probes loaded with two small circular patches make the proposed antenna operate in horizontal mode. On the other hand, two pins connecting two eyebrow-shaped patches and the ground form a magnetic loop which enables the proposed antenna to achieve vertical polarization. By elaborately adjusting the feeding structures, measurements demonstrate that the proposed antenna not only achieves 10-dB return loss bandwidths of 49% (1.7-2.8 GHz) and 28% (2-2.65 GHz) for Port 1 and Port 2, respectively, but also maintains a high isolation better than 32 dB over the entire common frequency band. Meanwhile, within the main lobes, the cross polarization levels, both in E-plane and in H-plane, stay lower than -25 dB for Port 1 and -20 dB for Port 2. In addition, the proposed antenna with a profile of 0.13 achieves the maximum gains of 8.4 dBi for horizontal polarization and 8.2 dBi for vertical polarization.
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Citation
Ruina Lian, Shaoshuai Zhang, Ying-Zeng Yin, Xue-Yan Song, and Hao Zhang, "A Broadband Dual-Polarized Printed Antenna," Progress In Electromagnetics Research Letters, Vol. 49, 23-29, 2014.
doi:10.2528/PIERL14080101
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