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A multiarm curl antenna for GPS applications

Author

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  • Son Xuat Ta
  • Ikmo Park

Abstract

A single-feed dual-band antenna with wide-beam circularly polarized (CP) radiation is introduced for application in the global positioning system (GPS). The primary radiating element is a planar multiarm curl antenna. The dual-band operation is achieved by dividing the arms of the antenna into two branches of different lengths. To generate CP radiation, the radiator is fed by double vacant-quarter printed rings, which allows direct matching of the antenna to a single 50 Ω coaxial line. To enable unidirectional CP radiation and improve the 3 dB axial ratio (AR) beamwidth, the planar multiarm curl radiator is backed by a rectangular cavity-backed reflector. The final design, with an overall GPS-L2 frequency size of approximately λo/2.45 × λo/2.45 × λo/8, resulted in a |S11|

Suggested Citation

  • Son Xuat Ta & Ikmo Park, 2015. "A multiarm curl antenna for GPS applications," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 29(1), pages 80-91, January.
    • Handle: RePEc:taf:tewaxx:v:29:y:2015:i:1:p:80-91
    DOI: 10.1080/09205071.2014.981298
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