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Mostrando ítems 11-20 de 107
Artículo
Transmission through stacked 2D periodic distributions of square conducting patches
(American Institute of Physics, 2012)
In this paper, we study the transmissivity of electromagnetic waves through stacked two-dimensional printed periodic arrays of square conducting patches. An analytical circuit-like model is used for the analysis. The model ...
Artículo
Common-mode suppression in microstrip differential lines by means of complementary split ring resonators: Theory and applications
(Institute of Electrical and Electronics Engineers, 2012)
This paper is focused on the application of complementary split-ring resonators (CSRRs) to the suppression of the common (even) mode in microstrip differential transmission lines. By periodically and symmetrically etching ...
Artículo
Making metals transparent: A circuit model approach
(The Optical Society, 2016)
Solid metal films are well known to be opaque to electromagnetic waves over a wide frequency range, from low frequency to optics. High values of the conductivity at relatively low frequencies or negative values of the ...
Artículo
Sevilla: una experiencia exitosa de promoción de la movilidad en bicicleta en el Sur de Europa
(Universidad de Sevilla, 2011)
En apenas cuatro años la ciudad de Sevilla ha pasado de una participación marginal de la bicicleta en el conjunto de la movilidad urbana a cotas de participación en torno al 6% del reparto modal global de la ciudad. Éste ...
Artículo
Simplified Modal Expansion to Analyze Frequency-Selective Surfaces: An Equivalent Circuit Approach
(Institute of Electrical and Electronics Engineers, 2016)
This communication extends a previously reported analytical circuit that models the plane wave scattering by 2-D arrays of planar patches/apertures embedded in a layered media. In this extension, it is assumed that the ...
Artículo
A Novel U-Shaped Tri-Band Antenna on High Permittivity Multilayer Substrate for Wireless Communications
(Editorial Advisory Panel, 2013)
In this paper, a detailed study of a new proposed rectangular dielectric u-shaped tri-band antenna is presented. A meticulous study considering the high permittivity material effect is introduced and discussed. All the ...
Artículo
Charge injection enhanced natural convection heat transfer in horizontal concentric annuli filled with a dielectric liquid
(Elsevier, 2016)
The natural convection heat transfer in a highly insulating liquid contained between two horizontal concentric cylinders is shown by two-dimensional numerical simulations to be noticeably enhanced by imposing a direct ...
Artículo
On two-dimensional finite amplitude electro-convection in a dielectric liquid induced by a strong unipolar injection
(Elsevier, 2015)
The hydrodynamic stability of a dielectric liquid subjected to strong unipolar injection is numerically investigated. We determined the linear criterion Tc (T being the electric Rayleigh number) and finite amplitude one ...
Artículo
Self-complementary metasurface for designing narrow band pass/stop filters
(Institute of Electrical and Electronics Engineers, 2013)
A self-complementary metasurface is studied in this paper. The metasurface is a 2-D periodical arrangement of unit cells formed by a metallic printed split ring resonator and its complementary counterpart. It is demonstrated ...
Artículo
New absorbing boundary conditions and analytical model for multilayered mushroom-type metamaterials: Applications to wideband absorbers
(Institute of Electrical and Electronics Engineers, 2012)
An analytical model is presented for the analysis of multilayer wire media loaded with 2-D arrays of thin material terminations, characterized in general by a complex surface conductivity. This includes the cases of ...