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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2012-12-07
Wideband Cavity-Backed Crossed Dipoles for Circular Polarization
By
Xue Bai,

    Dr. Xue Bai

    School of Electronic Engineering

    University of Electronic Science and Technology of China (UESTC)

    China

    Homepage

Shi-Wei Qu

    Dr. Shi-Wei Qu

    Microwave Engineering

    Univ of Electronic Science and Technology of China

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 36, 133-142, 2013
doi:10.2528/PIERL12101908 | Google Scholar

Abstract
A novel circularly polarized cavity-backed antenna (CBA) excited by crossed bowtie dipoles is presented in this paper. It is fed by a transition from a microstrip line to double-slot lines. The crossed dipoles consist of a top-loaded triangular and a filleted rhombic to achieve the required input impedance relations for circularly polarized radiation. After optimization, a simulated 3-dB axial-ratio bandwidth of 50% and a broadside gain in a range of 7 to 9 dBi are achieved while the standing wave ratio is kept below 2.
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Citation
Xue Bai, and Shi-Wei Qu, "Wideband Cavity-Backed Crossed Dipoles for Circular Polarization," Progress In Electromagnetics Research Letters, Vol. 36, 133-142, 2013.
doi:10.2528/PIERL12101908
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