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X-band compact choke horn antenna with circular polarization and isoflux pattern for nanosatellite applications

Published online by Cambridge University Press:  17 April 2015

Eric Arnaud ,
Luc Duchesne ,
Kevin Elis ,
Jamil Fouany ,
Thierry Monediere  and
Marc Thevenot
Eric Arnaud*
Affiliation:
XLIM – CNRS, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France
Luc Duchesne
Affiliation:
SATIMO, 17 Avenue de Norvège, 91140 Villebon Cedex, France
Kevin Elis
Affiliation:
CNES, 18 Avenue Edouard Belin, 31401 Toulouse Cedex 9, France
Jamil Fouany
Affiliation:
XLIM – CNRS, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France
Thierry Monediere
Affiliation:
XLIM – CNRS, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France
Marc Thevenot
Affiliation:
XLIM – CNRS, 123 Avenue Albert Thomas, 87060 Limoges Cedex, France
*
Corresponding author: E. Arnaud Email: eric.arnaud@xlim.fr
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Abstract

This paper presents a tradeoff between isoflux pattern quality and X-band antenna compactness for nanosatellite applications. Having an isoflux radiation and a circular polarization (CP) generally causes a large antenna size which is incompatible for these applications. A new design of an antenna is done with the following maximum antenna dimensions: a diameter of 90 mm and a height of 20 mm above the nanosatellite platform. The isoflux pattern is slightly degraded while a good CP and realized gain are kept. The structure is a compact choke horn. It presents an axial ratio lower than 3 dB and a RG close to 0 dB over a 400 MHz bandwidth (8.0–8.4 GHz). It has been realized and successfully measured.

Keywords

Nanosatellite applicationCircular polarizationCompact choke hornIsoflux radiation pattern
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 3: Journee Nationale des Micro-ondes (JNM) 2015 , May 2016 , pp. 651 - 659
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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