Title :
Towards reflection-less or total reflection magnet-less nonreciprocal metasurface
Author :
Gurlek, Burak ; Caloz, Christophe
Author_Institution :
Dept. of Electr. Eng., Polytech. de Montreal, Montréal, QC, Canada
Abstract :
A magnet-less nonreciprocal metasurface (MNMs) exhibiting enhanced transmission is presented. The metasurface is constituted of a 2D periodic array of a stacked annular pair of slots loaded with semiconductor-based unidirectional components sandwiching a dielectric slab spacer. The reflection and transmission dyadics of the metamaterial structure are computed using transmission line modeling with single-layer annular slot impedance dyadic. A parametric study is conducted in terms of the spacer permittivity and thickness to achieve enhanced transmission. Possibility of designing total transmission or total reflection magnet-less nonreciprocal metasurfaces is discussed.
Keywords :
dielectric materials; microwave metamaterials; permittivity; transmission line theory; 2D periodic array; MNM; dielectric slab spacer; metamaterial structure; reflection dyadics; semiconductor-based unidirectional components; single-layer annular slot impedance dyadic; spacer permittivity; stacked annular slot pair; total reflection magnet-less nonreciprocal metasurfaces; total transmission magnet-less nonreciprocal metasurfaces; transmission dyadics; transmission line modeling; Dielectrics; Impedance; Magnetic materials; Magnetic moments; Metamaterials; Surface impedance; Transmission line matrix methods; magnet-less gyrotropy; metamaterial; metasurface; nonreciprocal components;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
