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 Works › RGC 32 - Refereed conference paper (with host publication) › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Title of host publication | IEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition |
Publisher | Institute of Electrical and Electronics Engineers, Inc. |
Pages | 62-63 |
ISBN (print) | 9781479948154 |
Publication status | Published - 20 Nov 2014 |
Workshop
Title | 2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014) |
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Place | Japan |
City | Sapporo, Hokkaido |
Period | 4 - 6 August 2014 |
Link(s)
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.
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 Works › RGC 32 - Refereed conference paper (with host publication) › peer-review