Naslov
Modelling Cascaded Cylindrical Metasurfaces Using Sheet Impedances and a Transmission Matrix Formulation

Autori
Šipuš, Zvonimir ; Bosiljevac, Marko ; Grbic, Anthony

Izvornik
Iet microwaves antennas & propagation (1751-8725) 12 (2018), 7; 1041-1047

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
metasurfaces, curved metasurfaces, spectral domain aproach, sheet impedance
(metasurfaces, curved metasurfaces, spectral domain aproach, sheet impedanc)

Sažetak
Metasurfaces that manipulate electromagnetic waves have garnered significant attention in recent years. The focus has primarily been on planar devices, while many applications require curved surfaces. In this paper, we propose an analysis approach for cylindrical cascaded (multilayer) metasurfaces. The approach combines the concept of sheet impedance in the spectral domain with a new transmission matrix formulation that is applicable to stratified, canonical curved geometries. Approximate formulas for the sheet impedance of common planar, metallic patterns are also adapted to curved geometries. The reported analysis approach allows one to determine the optimal spectral-domain, azimuthal dependence of a sheet impedance, as well as the best geometrical elements to obtain the required azimuthal variation. The results are verified through several cylindrical metsurface examples.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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