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Listar por autor "Mesa Ledesma, Francisco Luis"
Mostrando ítems 21-40 de 101
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Artículo
Circuit modeling of the transmissivity of stacked two-dimensional metallic meshes
Kaipa, Chandra S. R.; Yakovlev, Alexander B.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Butler, Celia A. M.; Hibbins, Alastair P. (Optical Society of America, 2010)This paper presents a simple analytical circuit-like model to study the transmission of electromagnetic waves through ...
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Artículo
Closed-form expressions of multilayered planar Green's functions that account for the continuous spectrum in the far field
Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2008)The rational function fitting method has been found useful in the derivation of closed-form expressions of spatial-domain ...
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Artículo
Comment on "left-handed-media simulation and transmission of EM waves in subwavelength split-ring-resonator-loaded metallic waveguides"
Kondrat'ev, I. G.; Smirnov, A. I.; Marqués Sillero, Ricardo; Martel Villagrán, Jesús; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (American Physical Society, 2003) -
Artículo
Common-mode suppression in microstrip differential lines by means of complementary split ring resonators: Theory and applications
Naqui, Jordi; Fernández Prieto, Armando; Durán Sindreu, Miguel; Mesa Ledesma, Francisco Luis; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferran (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 ...
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Artículo
Compact balanced FSIR bandpass filter modified for enhancing common-mode suppression
Fernández Prieto, Armando; Martel Villagrán, Jesús; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2015)A novel balanced bandpass filter (BPF) based on folded stepped impedance resonators (FSIR's) with modified ground plane ...
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Artículo
Comparative Analysis of Edge- and Broadside-Coupled Split Ring Resonators for Metamaterial Design - Theory and Experiments
Marqués Sillero, Ricardo; Mesa Ledesma, Francisco Luis; Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2003)This paper develops a quasi-analytical and self-consistent model to compute the polarizabilities of split ring resonators ...
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Artículo
Cross-Polarization Control in FSSs by Means of an Equivalent Circuit Approach
Molero, Carlos; Alex Amor, Antonio; Mesa Ledesma, Francisco Luis; Palomares Caballero, Ángel; Padilla, Pablo (IEEE Computer Society, 2021)This paper presents an efficient equivalent circuit approach (ECA), based on a Floquet modal expansion, for the study of ...
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Artículo
Design of a band-pass filter using stepped impedance resonators with floating conductors
Velázquez Ahumada, María del Castillo; Mesa Ledesma, Francisco Luis; Martel Villagrán, Jesús; Medina Mena, Francisco (2010) -
Ponencia
Design of a dual band-pass filter using modified folded stepped-impedance resonators
Velázquez Ahumada, María del Castillo; Martel Villagrán, Jesús; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2009)A folded stepped impedance resonator (SIR) modified by adding an inner quasi-lumped SIR stub is used as the basic block ...
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Artículo
Differential Lines for Common-Mode Suppression Based in Hybrid Microstrip/CPW Technology
Martel Villagrán, Jesús; Fernández Prieto, Armando; Lujambio, Aintzane; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2017)A symmetrical pair of differential microstrip lines implemented in hybrid microstrip/coplanar waveguide (CPW) technology ...
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Artículo
Dispersion Analysis of Metasurfaces With Hexagonal Lattices With Higher Symmetries
Yang, Shiyi; Zetterstrom, Oskar; Mesa Ledesma, Francisco Luis; Quevedo Teruel, Óscar (Institute of Electrical and Electronics Engineers, 2023-10)This article investigates the dispersion properties of metasurfaces with hexagonal lattices, including potential higher ...
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Artículo
Dispersion analysis of periodic structures in anisotropic media: application to liquid crystals
Alex Amor, Antonio; Palomares Caballero, Ángel; Mesa Ledesma, Francisco Luis; Quevedo Teruel, Óscar; Padilla, Pablo (IEEE Computer Society, 2022)This paper presents an efficient method to compute the dispersion diagram of periodic and uniform structures with generic ...
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Artículo
Dispersion Analysis of Periodically Loaded Transmission Lines with Twist Symmetry Using the Mode-Matching Technique
Zetterstrom, Oskar; Valerio, Guido; Mesa Ledesma, Francisco Luis; Ghasemifard, Fatemeh; Norgren, Martin; Quevedo Teruel, Óscar (MDPI, 2020)A mode-matching formulation is presented and used to analyze the dispersion properties of twist-symmetric transmission ...
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Artículo
Dispersion analysis of twist-symmetric dielectric waveguides
Castillo Tapia, Pilar; Gassen, Kwinten van; Chen, Qiao; Mesa Ledesma, Francisco Luis; Sipus, Zvonimir; Quevedo Teruel, Óscar (MDPI, 2021)We propose a circular twist-symmetric dielectric waveguide that is polarization-selective. In the practical implementation ...
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Patente. Invención
Dispositivo de líneas de transmisión diferenciales con supresión de modo común
Medina Mena, Francisco Luis; Fernández Prieto, Armando; Mesa Ledesma, Francisco Luis; Martín Antolín, Juan Fernando; Durán-Sindreu Viader, Miguel; Naqui Garolera, Jordi (Oficina Española de Patentes y Marcas (OEPM), 2014-01-08)Dispositivo de líneas de transmisión diferenciales con supresión de modo común. Comprende: - un medio de transmisión ...
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Ponencia
Dual capacitive-inductive nature of graphene metasurface: Transmission characteristics at low-terahertz frequencies
Padooru, Yashwanth R.; Yakovlev, Alexander B.; Kaipa, Chandra S.R.; Hansony, George W.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2013)We report on the dual nature (capacitive and inductive) of the surface impedance of periodic graphene patches at low-terahertz ...
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Artículo
Dual capacitive-inductive nature of periodic graphene patches: Transmission characteristics at low-terahertz frequencies
Padooru, Yashwanth R.; Yakovlev, Alexander B.; Kaipa, Chandra S. R.; Hanson, George W.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (American Physical Society, 2013)We report on the dual nature (capacitive and inductive) of the surface impedance of periodic graphene patches at low-terahertz ...
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Artículo
Dual-band differential filter using broad-band common-mode rejection artificial transmission line
Mesa Ledesma, Francisco Luis; Qian, Shilong; Hong, Jia-Sheng; Naqui, Jordi; Martín, Ferrán; Fernández Prieto, Armando; Medina Mena, Francisco; Martel Villagrán, Jesús (2013) -
Artículo
Dynamical Equivalent Circuit for 1-D Periodic Compound Gratings
Molero Jiménez, Carlos; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2016)Metallic compound gratings are studied in this work by means of an analytical equivalent circuit approach in order to ...
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Artículo
Effects of inter-resonator coupling in split ring resonator loaded metamaterial transmission lines
Naqui, Jordi; Fernández Prieto, Armando; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Martín, F. (American Institute of Physics, 2014)This paper investigates the effects of inter-resonator coupling in metamaterial transmission lines loaded with split ring ...