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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2017-07-03
A Novel Circularly Polarised Antenna with Wide Power and Axial-Ratio Beamwidth by Using Tilted Dipoles
By
Li Wang,

    Dr. Li Wang

    Xidian University

    China

    Homepage

Xi Chen,

    Dr. Xi Chen

    Xidian University

    China

    Homepage

Dan Wu,

    Dr. Dan Wu

    Xidian University

    China

    Homepage

Long Yang,

    Dr. Long Yang

    Science and Technology on Antenna and Microwave Laboratory

    Xidian University

    China

    Homepage

Guang Fu,

    Dr. Guang Fu

    Xidian University

    China

    Homepage

Xiao-Wei Shi

    Professor Xiao-Wei Shi

    School of Electronics Engineering

    Xidian University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 69, 37-43, 2017
doi:10.2528/PIERL17040701 | Google Scholar

Abstract
A novel circularly polarised antenna with wide 3 dB axial-ratio beamwidth (ARBW) and half power beamwidth (HPBW) is proposed in this letter. By using two pairs of tilted dipoles, the ARBW of the antenna is significantly enhanced to about 160° and 162° in the XZ- and YZ-planes, respectively. Meanwhile, its HPBW is also broadened to above 116° in the dual planes. A prototype is manufactured and measured to validate the method. The measured results show that |S11|<-10 dB reaches about 38.8% (1.37 GHz-2.03 GHz), and the AR at broadside bandwidth is 14% (1.51 GHz-1.74 GHz). The gain of the antenna also keeps above 4.19 dBic. Meanwhile, acceptable agreements can be obtained between the simulated and measured results. As such, the proposed CP antenna with wide beamwidth can be used in various navigation systems.
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Citation
Li Wang, Xi Chen, Dan Wu, Long Yang, Guang Fu, and Xiao-Wei Shi, "A Novel Circularly Polarised Antenna with Wide Power and Axial-Ratio Beamwidth by Using Tilted Dipoles," Progress In Electromagnetics Research Letters, Vol. 69, 37-43, 2017.
doi:10.2528/PIERL17040701
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