Time-delay Gradient and Reflections on Corrugated Surfaces
Acoustic wave reflections from corrugated surfaces are analyzed. For this work, a proposal of Yi-Fan Zhu on a relatively simple model of metasurface is taken as a basis. Each groove of a corrugated surface can be considered analogous to a linear array, while the depth of its grooves is related to th...
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| Autores principales: | , , , |
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| Formato: | Artículo publishedVersion |
| Lenguaje: | Español |
| Publicado: |
FIUBA
2019
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| Materias: | |
| Acceso en línea: | https://elektron.fi.uba.ar/elektron/article/view/73 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=73_oai |
| Aporte de: |
| Sumario: | Acoustic wave reflections from corrugated surfaces are analyzed. For this work, a proposal of Yi-Fan Zhu on a relatively simple model of metasurface is taken as a basis. Each groove of a corrugated surface can be considered analogous to a linear array, while the depth of its grooves is related to the phase of each source. Zhu's original proposal takes the phase gradient of the arrangement as a design parameter. In this paper we analyze the advantages of surface design from the time-delay gradient. It also presents the possibility of impose brief delays in the whole pattern of reflections independently of the general design process. |
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