120 citations · 330 across the 9 of their papers we have counts for
9 papers
Perfect conversion of a TM surface-wave into a TM leaky-wave by an isotropic periodic metasurface printed on a grounded dielectric slab
Svetlana Tcvetkova, Enrica Martini, Sergei Tretyakov +1
This paper presents an exact solution for a perfect conversion of a TM-polarized surface wave (SW) into a TM-polarized leaky-wave (LW) using a reciprocal and lossless penetrable me…
Omega-bianisotropic metasurface for converting a propagating wave into a surface wave
Vladislav Popov, Ana Díaz-Rubio, Viktar Asadchy +4
Although a rigorous theoretical ground on metasurfaces has been established in the recent years on the basis of the equivalence principle, the majority of metasurfaces for converti…
Exact solution for surface wave to space wave conversion by periodical impenetrable metasurfaces
Svetlana N. Tcvetkova, Stefano Maci, Sergei A. Tretyakov
We show that there exists an exact solution for a lossless and reciprocal periodic surface impedance which ensures full conversion of a single-mode surface wave propagating along t…
Multi-Channel Reflectors: Versatile Performance Experimentally Tested
S. N. Tcvetkova, V. S. Asadchy, A. Diaz-Rubio +2
We investigate multi-channel reflectors, such as a three-channel power splitter and a five-channel isolating mirror. These metasurface reflectors are able to control reflections fr…
Near-Perfect Conversion of a Propagating Plane Wave into a Surface Wave Using Metasurfaces
Svetlana N. Tcvetkova, Do-Hoon Kwon, Ana Díaz-Rubio +1
In this paper, theoretical and numerical studies of perfect/nearly-perfect conversion of a plane wave into a surface wave are presented. The problem of determining the electromagne…
Flat Engineered Multi-Channel Reflectors
V. S. Asadchy, A. Diaz-Rubio, S. N. Tcvetkova +4
Recent advances in engineered gradient metasurfaces have enabled unprecedented opportunities for light manipulation using optically thin sheets, such as anomalous refraction, refle…
Multifunctional Cascaded Metamaterials: Integrated Transmitarrays
Amr A. Elsakka, Viktar S. Asadchy, Ihar A. Faniayeu +2
Control of electromagnetic waves using engineered materials is very important in a wide range of applications, therefore there is always a continuous need for new and more efficien…
Metasurfaces for perfect and full control of refraction and reflection
V. Asadchy, M. Albooyeh, S. Tcvetkova +2
In this talk we present and discuss a new general approach to the synthesis of metasurfaces for full control of transmitted and reflected fields. The method is based on the use of…
Scanning characteristics of metamirror antennas with sub-wavelength focal distance
Svetlana N. Tcvetkova, Viktar S. Asadchy, Sergei A. Tretyakov
We investigate beam scanning by lateral feed displacement in novel metasurface based reflector antennas with extremely short focal distances. Electric field distributions of the wa…