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A Ka-Band Along Track Interferometry and Ground Moving Target Identification Architecture Based on Reflectarray Antennas

The European Space Agency (ESA) project is investigating the feasibility of future Earth observation Synthetic Aperture Radar (SAR) missions with Along Track Interferometry (ATI) and Ground-Moving Target Indication (GMTI) capabilities in Ka-band. In the ESA technology development activity “MASKARA” a compact stowable, high gain reflectarray structure is investigated, which is a key enabling technology for such missions. In this paper, results of the project's preliminary design phase are presented and discussed.