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A high gain S-band slot antenna with MSS for CubeSat

Journal Article


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Abstract


  • Cube satellites, aka CubeSats, are a class of tiny satellites that have become popular for space programs. This is because they can be built relatively cheaply using commercial off-the-shelf components. Moreover, CubeSats can communicate with each other, and assemble into swarms to carry out different functions: e.g., wide area measurements and sensing. Swarms of CubeSats also have the effect of increasing the contact period with ground stations allowing for a longer communications window. These capabilities require CubeSats to be equipped with an efficient, high gain, small antenna to facilitate cross-link or inter-satellite communications. Henceforth, this paper presents a high gain coplanar waveguide (CPW)–fed slot antenna for CubeSats. A key feature is the use of a metasurface superstrate structure (MSS) to significantly improve gain and reduce back-lobe emissions. This also has the advantage of minimizing interference to components inside a CubeSat. We have comprehensively evaluated the antenna using the high-frequency simulator structure (HFSS) as well as a carrying out testing on a 3 U (10 × 10 × 30 cm3) CubeSat platform. We have studied the effect of MSS element sets and their position and the effect of a 3-U CubeSat body on the performance of the proposed antenna. The experimental results confirm that our antenna achieves a return loss of 21.5 dB and a fractional impedance bandwidth (BW) of 55.91% with S11 ≤ 10 dB and has a simulated and measured gains of 9.71 and 8.8 dBi respectively at the desired frequency of 2.45 GHz. In contrast, amongst all previous S-band planar antennas that are suitable for CubeSats, the best gain is only 5.96 dB at 2.45 GHz.

Publication Date


  • 2018

Citation


  • F. Tubbal, R. Raad, K. Chin, L. Matekovits, B. Butters & G. Dassano, "A high gain S-band slot antenna with MSS for CubeSat," Annals of Telecommunications, vol. Online First, pp. 1-15, 2018.

Scopus Eid


  • 2-s2.0-85056348792

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=3084&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2079

Number Of Pages


  • 14

Start Page


  • 1

End Page


  • 15

Volume


  • Online First

Place Of Publication


  • France

Abstract


  • Cube satellites, aka CubeSats, are a class of tiny satellites that have become popular for space programs. This is because they can be built relatively cheaply using commercial off-the-shelf components. Moreover, CubeSats can communicate with each other, and assemble into swarms to carry out different functions: e.g., wide area measurements and sensing. Swarms of CubeSats also have the effect of increasing the contact period with ground stations allowing for a longer communications window. These capabilities require CubeSats to be equipped with an efficient, high gain, small antenna to facilitate cross-link or inter-satellite communications. Henceforth, this paper presents a high gain coplanar waveguide (CPW)–fed slot antenna for CubeSats. A key feature is the use of a metasurface superstrate structure (MSS) to significantly improve gain and reduce back-lobe emissions. This also has the advantage of minimizing interference to components inside a CubeSat. We have comprehensively evaluated the antenna using the high-frequency simulator structure (HFSS) as well as a carrying out testing on a 3 U (10 × 10 × 30 cm3) CubeSat platform. We have studied the effect of MSS element sets and their position and the effect of a 3-U CubeSat body on the performance of the proposed antenna. The experimental results confirm that our antenna achieves a return loss of 21.5 dB and a fractional impedance bandwidth (BW) of 55.91% with S11 ≤ 10 dB and has a simulated and measured gains of 9.71 and 8.8 dBi respectively at the desired frequency of 2.45 GHz. In contrast, amongst all previous S-band planar antennas that are suitable for CubeSats, the best gain is only 5.96 dB at 2.45 GHz.

Publication Date


  • 2018

Citation


  • F. Tubbal, R. Raad, K. Chin, L. Matekovits, B. Butters & G. Dassano, "A high gain S-band slot antenna with MSS for CubeSat," Annals of Telecommunications, vol. Online First, pp. 1-15, 2018.

Scopus Eid


  • 2-s2.0-85056348792

Ro Full-text Url


  • https://ro.uow.edu.au/cgi/viewcontent.cgi?article=3084&context=eispapers1

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/2079

Number Of Pages


  • 14

Start Page


  • 1

End Page


  • 15

Volume


  • Online First

Place Of Publication


  • France