The ExoMars 2028 WISDOM antenna assembly: Description and characterization - INSU - Institut national des sciences de l'Univers
Article Dans Une Revue Planetary and Space Science Année : 2024

The ExoMars 2028 WISDOM antenna assembly: Description and characterization

Résumé

While ground penetrating radars have been extensively researched on Earth, the high-resolution exploration and imaging of the shallow subsurface of celestial bodies in our solar system is still in its early stages, with only a handful of systems capable of the task. Designing high-resolution radar systems can be a complex task due to the large frequency bandwidth required by the antennas to achieve high vertical resolution. The WISDOM GPR, as part of the 2028 ExoMars mission, is a highly capable and challenging instrument in this context, given its fully-polarimetric setup and mission constraints on the operating environment, robustness, as well as mass and size budget. This paper outlines the development and characterization process of the WISDOM antenna assembly, which can serve as a model for future radar systems. Furthermore, it presents the results of the antenna characterization as the foundation for instrument calibration and optimal radar sounding outcomes.
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Dates et versions

insu-04774016 , version 1 (08-11-2024)
insu-04774016 , version 2 (15-12-2024)

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Wolf-Stefan Benedix, Sebastian Hegler, Christoph Statz, Ronny Hahnel, Dirk Plettemeier, et al.. The ExoMars 2028 WISDOM antenna assembly: Description and characterization. Planetary and Space Science, In press, pp.105995. ⟨10.1016/j.pss.2024.105995⟩. ⟨insu-04774016v1⟩
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