Title :
Polarimetric Control of Reflective Metasurfaces
Author :
Artiga, Xavier ; Bresciani, Daniele ; Legay, Hervé ; Perruisseau-Carrier, Julien
Author_Institution :
Centre Tecnol. de Telecomunicacions de Catalunya (CTTC), Barcelona, Spain
fDate :
7/4/1905 12:00:00 AM
Abstract :
This letter addresses the synthesis of reflective cells approaching a given desired Floquet´s scattering matrix. This work is motivated by the need to obtain much finer control of reflective metasurfaces by controlling not only their copolarized reflection, but also their cross-coupling behavior. The demonstrated capability will enable more powerful design approaches-involving all field components in phase and magnitude-and consequently better performance in applications involving reflective metasurfaces. We first expose some fundamental theoretical constraints on the cell scattering parameters. Then, a successful procedure for controlling all four scattering parameters by applying parallelogram and trapezoid transformations to square patches is presented, considering both normal and oblique incidence.
Keywords :
S-matrix theory; S-parameters; electromagnetic wave scattering; Floquet scattering matrix; cell scattering parameter; copolarized reflection; cross-coupling behavior; normal incidence; oblique incidence; parallelogram-trapezoid transformations; polarimetric control; reflective cell synthesis; reflective metasurfaces; Energy conservation; Optical surface waves; Reflection; Reflector antennas; Scattering; Simulation; Metasurface; periodic structures; polarization; reflective cell;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2231045