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

Wei Lin; Hang Wong

doi:10.1109/iWEM.2014.6963636

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

Wei Lin^*
, Hang Wong

^*Corresponding author for this work

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

1 Citation (Scopus)

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 E_θ and eight coupling loops which radiate a horizontally polarized electric field E_φ. 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.

Original language	English
Title of host publication	IEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition
Publisher	IEEE
Pages	62-63
ISBN (Print)	9781479948154
DOIs	https://doi.org/10.1109/iWEM.2014.6963636
Publication status	Published - 20 Nov 2014
Event	2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014): Applications and Student Innovation Competition - Sapporo, Hokkaido, Japan Duration: 4 Aug 2014 → 6 Aug 2014

Workshop

Workshop	2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014)
Place	Japan
City	Sapporo, Hokkaido
Period	4/08/14 → 6/08/14

Research Keywords

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

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@inproceedings{61084dfe1f82402bbb477699aa10ed2f,

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

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.",

keywords = "Circularly polarized antenna, conical beam, satellite communication, wideband wheel-shape antenna",

author = "Wei Lin and Hang Wong",

year = "2014",

month = nov,

day = "20",

doi = "10.1109/iWEM.2014.6963636",

language = "English",

isbn = "9781479948154",

pages = "62--63",

booktitle = "IEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition",

publisher = "IEEE",

address = "United States",

note = "2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014) : Applications and Student Innovation Competition ; Conference date: 04-08-2014 Through 06-08-2014",

}

Lin, W & Wong, H 2014, Wideband circularly-polarized conical beam wheel-shaped antenna with reflector for axial ratio bandwdith and pattern improvement. in IEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition., 6963636, IEEE, pp. 62-63, 2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014), Sapporo, Hokkaido, Japan, 4/08/14. https://doi.org/10.1109/iWEM.2014.6963636

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. IEEE, 2014. p. 62-63 6963636.

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

TY - GEN

T1 - Wideband circularly-polarized conical beam wheel-shaped antenna with reflector for axial ratio bandwdith and pattern improvement

AU - Lin, Wei

AU - Wong, Hang

PY - 2014/11/20

Y1 - 2014/11/20

N2 - 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.

AB - 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.

KW - Circularly polarized antenna

KW - conical beam

KW - satellite communication

KW - wideband wheel-shape antenna

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84918509179&origin=recordpage

U2 - 10.1109/iWEM.2014.6963636

DO - 10.1109/iWEM.2014.6963636

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781479948154

SP - 62

EP - 63

BT - IEEE iWEM 2014 - IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition

PB - IEEE

T2 - 2014 IEEE International Workshop on Electromagnetics (IEEE iWEM 2014)

Y2 - 4 August 2014 through 6 August 2014

ER -

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

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