Wideband circularly-polarized conical beam wheel-shaped antenna with reflector for axial ratio bandwdith and pattern improvement

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

1 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Title of host publicationIEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition
PublisherInstitute of Electrical and Electronics Engineers, Inc.
Pages62-63
ISBN (print)9781479948154
Publication statusPublished - 20 Nov 2014

Workshop

Title2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014)
PlaceJapan
CitySapporo, Hokkaido
Period4 - 6 August 2014

Abstract

Wideband circularly-polarized (CP) conical beam wheel-shaped antenna with a back reflector is presented in this paper. The wheel-shaped antenna composes of a center-fed monopolar patch which generates a vertically polarized electric field Eθ and eight coupling loops which radiate a horizontally polarized electric field Eφ. Both fields have conical-shaped patterns and circular polarization is obtained when their phase difference reaches 90°. By adding the back reflector, the axial ratio (AR) of the proposed antenna is widen to 25% (for AR <3dB). An antenna prototype operating at C band is fabricated and tested to verify the simulation. Measured results show that the proposed antenna exhibits wide impedance bandwidth from 4.88 GHz to 6.5 GHz (28%) and AR bandwidth from 4.7 GHz to 6.05 GHz (25%). In addition, conical beam radiation pattern is observed and front to back ratio is improved largely with present of reflector.

Research Area(s)

  • Circularly polarized antenna, conical beam, satellite communication, wideband wheel-shape antenna

Citation Format(s)

Wideband circularly-polarized conical beam wheel-shaped antenna with reflector for axial ratio bandwdith and pattern improvement. / Lin, Wei; Wong, Hang.
IEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition. Institute of Electrical and Electronics Engineers, Inc., 2014. p. 62-63 6963636.

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review