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              <p>Une métasurface diffusante à large bande est conçue, fabriquée et caractérisée. En se basant sur un algorithme dit “Pattern Search” et sur la théorie des réseaux planaires, une configuration de diffusion optimale composée de 8 × 8 éléments binaires est rapidement obtenue. La simulation de la métasurface complète à l'aide du logiciel CST Microwave Studio et les résultats de mesure montrent une réduction de la section efficace radar (SER) en dessous de -10 dB par rapport à une plaque métallique de même taille sur une large bande de fréquences de 27,7 à 40 GHz, et avec une faible sensibilité à l'angle azimutal de l'onde incidente.</p>
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