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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2016-05-19
CPW-Fed Stub-Loaded Slot Dipole Antenna Design for Dual-Band Operation
By
Jianxing Li,

    Professor Jianxing Li

    School of Information and Communications Engineering

    Xi'an Jiaotong University

    China

    Homepage

Jianying Guo,

    Dr. Jianying Guo

    School of Electronic and Information Engineering

    Xi’an Jiaotong University

    China

    Homepage

Hongyu Shi,

    Dr. Hongyu Shi

    School of Electronic and Information Engineering

    Xi’an Jiaotong University

    China

    Homepage

Bin He,

    Dr. Bin He

    School of Electronic and Information Engineering

    Xi’an Jiaotong University

    China

    Homepage

Anxue Zhang

    Dr. Anxue Zhang

    School of Information and Electronics Engineering

    Xi'an Jiaotong University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 60, 67-72, 2016
doi:10.2528/PIERL16041408 | Google Scholar

Abstract
A novel uniplanar slot dipole antenna fed by a coplanar waveguide (CPW) is proposed for dual-band operation. The frequency ratio between the first spurious and fundamental modes of the slot dipole antenna can be conveniently adjusted with the use of four slot stubs introduced on its two arms. Furthermore, the radiation patterns at the first spurious mode are modified by adding four parasitic slots along its two arms to resemble those of the fundamental mode. Under the assistance of the slot stubs together with the parasitic slots, another resonant mode can be generated and merged with the first spurious mode, and therefore improve the bandwidth significantly. An antenna prototype was fabricated and measured to validate the design concept. The measured results show that dual-band operation with 10-dB impedance bandwidths of 2.99-3.83 GHz (24.6%) and 5.21-6.89 GHz (27.8%) has been obtained. The antenna has stable broadside and bidirectional radiation patterns with low cross-polarization components over the two operating bands.
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Citation
Jianxing Li, Jianying Guo, Hongyu Shi, Bin He, and Anxue Zhang, "CPW-Fed Stub-Loaded Slot Dipole Antenna Design for Dual-Band Operation," Progress In Electromagnetics Research Letters, Vol. 60, 67-72, 2016.
doi:10.2528/PIERL16041408
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