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...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Universidad de Buenos Aires
2019-06-01
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Series: | Revista Elektrón |
Subjects: | |
Online Access: | http://elektron.fi.uba.ar/index.php/elektron/article/view/73 |
Summary: | 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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ISSN: | 2525-0159 |