Wave Scattering by a Planar Junction Between Anomalously Reflecting Metasurface and Impedance Sheets

Metasurface technology has become one of the promising structures for controlling and manipulating of the phase and amplitude characteristics of the electromagnetic waves in recent years. For this reason, the determination of the exact diffracted fields is also crucial especially in the edge or disc...

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Bibliographic Details
Published in:IEEE access 2021, Vol.9, p.135689-135696
Main Authors: Celik, Suleyman Burak, Canbolat, Huseyin
Format: Article
Language:English
Subjects:
anomalous reflection
Diffraction
diffraction theory
Discontinuity
Electromagnetic radiation
exact solution
Geometrical theory of diffraction
Geometry
Impedance
Junctions
Metasurfaces
Reflection
Surface impedance
Wave diffraction
Wave scattering
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Summary:Metasurface technology has become one of the promising structures for controlling and manipulating of the phase and amplitude characteristics of the electromagnetic waves in recent years. For this reason, the determination of the exact diffracted fields is also crucial especially in the edge or discontinuity points of these types of materials. In the paper, the discontinuity problem by the junction between the layers of an anomalously reflecting metasurface and an impedance half-screen is taken into consideration. These two planar layers have a common edge discontinuity where the diffracted waves occur. The scattered waves from the structure are obtained by the novel technique of the method of transition boundary, which especially offers the relation between the diffracted and scattered geometrical optical waves at the transition boundaries. The diffracted wave expressions are derived by the technique of the method of transition boundary and the uniform wave expressions are obtained by the method of uniform geometrical theory of diffraction. The diffracted and total wave results of the method of transition boundary are also compared and verified by the well-known theory of physical optics. The behaviors of the total wave and its components are analyzed numerically.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3116998