Method for designing a modulated metasurface antenna structure

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United States of America Patent

PATENT NO 9685709
APP PUB NO 20170018855A1
SERIAL NO

15104866

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A method for designing a surface pattern for an impedance surface which results in a position-dependent target impedance of said impedance surface, and the impedance surface having the position-dependent target impedance radiates a desired first-type electromagnetic field radiation in reaction to being irradiated by a second-type electromagnetic field radiation. The method includes obtaining a first modal representation on the basis of the first-type electromagnetic field radiation in terms of a set of base modes that are chosen in accordance with a model function of the position-dependent target impedance, and obtaining a second modal representation on the basis of the second-type electromagnetic field radiation and the model function in terms of the set of base modes. The method further includes obtaining a first position-dependent quantity indicative of the position-dependent target impedance on the basis of the first modal representation and the second modal representation by determining values for a plurality of parameters of the model function for maximizing an overlap between the first modal representation and the second modal representation, and obtaining, as the surface pattern, a second position-dependent quantity indicative of geometric characteristics of the impedance surface on the basis of the first position-dependent quantity and a relationship between geometric characteristics of the impedance surface and corresponding impedance values.

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Patent Owner(s)

Patent OwnerAddress
EUROPEAN SPACE AGENCY8-10 RUE MARIO-NIKIS PARIS CEDEX 15 PARIS 75738

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Maci, Stefano Florence, IT 3 5
Minatti, Gabriele Bagno a Ripoli, IT 1 3
Patrizio, De Vita Paolo Pisa, IT 1 3
Sabbadini, Marco Leiden, NL 3 21

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