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


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Celik S. B., CANBOLAT H.

IEEE Access, vol.9, pp.135689-135696, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 9
  • Publication Date: 2021
  • Doi Number: 10.1109/access.2021.3116998
  • Journal Name: IEEE Access
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, Directory of Open Access Journals
  • Page Numbers: pp.135689-135696
  • Keywords: Metasurfaces, Impedance, Reflection, Diffraction, Geometry, Junctions, Surface impedance, Metasurfaces, anomalous reflection, diffraction theory, exact solution
  • Ankara Yıldırım Beyazıt University Affiliated: Yes

Abstract

© 2013 IEEE.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 behaviors of the total wave and its components are analyzed numerically.