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X-band compact dual circularly polarized isoflux antenna for nanosatellite applications

  • Eric Arnaud (a1), Cyrille Menudier (a1), Jamil Fouany (a1), Thierry Monediere (a1) and Marc Thevenot (a1)...

Abstract

This paper presents an original solution to design a compact dual circularly polarized isoflux antenna for nanosatellite applications. This kind of antenna has been previously designed in our laboratory, for a single circular polarization. This antenna is composed of a dual circularly polarized feed and a choke horn antenna. This feed is a cross-shaped slot in the ground plane, which provides coupling between a patch and a ring microstrip line with two ports. It is located at the center of a choke horn antenna. The simulated antenna presents an axial ratio <3 dB and a realized gain close to 0 dB over a 400 MHz bandwidth (8.0–8.4 GHz) at the limit of coverage, i.e. 65° whatever the azimuth angle (φ) and the port. A 20 dB matching for each port and 13 dB isolation characteristics between the two ports have been achieved on this bandwidth. It has been realized and successfully measured.

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Corresponding author

Corresponding author: E. Arnaud Email: eric.arnaud@xlim.fr

References

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Keywords

X-band compact dual circularly polarized isoflux antenna for nanosatellite applications

  • Eric Arnaud (a1), Cyrille Menudier (a1), Jamil Fouany (a1), Thierry Monediere (a1) and Marc Thevenot (a1)...

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