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Imaging reflector systems, also known as magnified phased array antennas, combine the advantages of reflectors and arrays in one architecture. They are particularly attractive for satellite applications requiring a high number of beams with some reconfigurability capability. They are able to scan one beam electronically or to generate a multibeam coverage in a limited field of view. The caustics of this antenna system are analyzed adopting a geometrical optics procedure and a semi-deterministic phase compensation procedure is proposed for reducing the scanning aberrations.
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Sciannella et al. (2015) studied this question.
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