Title :
An impedance formulation to determine specular reflection from metamaterial absorbers composed of capacitively loaded strip inclusions
Author :
Culhaoglu, Ali E. ; Osipov, A.V.
Author_Institution :
Microwaves & Radar Inst., German Aerosp. Center (DLR), Wessling, Germany
Abstract :
An impedance approach to describe specular reflection of plane waves with general direction of incidence and polarization from metamaterial absorbers composed of a metasurface of sub-wavelength sized capacitively loaded strip inclusions on a grounded dielectric substrate is studied. The possibility to model the absorber as an impedance boundary with an effective surface impedance is examined and a simple method to determine the specular reflection coefficient at oblique incidence from the normal incidence reflection coefficient is proposed.
Keywords :
electromagnetic metamaterials; electromagnetic wave polarisation; electromagnetic wave reflection; inclusions; Congress polarization; capacitively loaded strip inclusions; grounded dielectric substrate; impedance approach; impedance formulation; incidence reflection coefficient; metamaterial absorbers; oblique incidence; plane waves specular reflection; specular reflection coefficient; Impedance; Metamaterials; Optical surface waves; Scattering; Surface impedance; Surface waves;
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on
Conference_Location :
Lyngby
Print_ISBN :
978-1-4799-3450-8
DOI :
10.1109/MetaMaterials.2014.6948607
