NombreMedina Mena, Francisco
DepartamentoElectrónica y Electromagnetismo
Área de conocimientoElectromagnetismo
Categoría profesionalCatedrático de Universidad
Correo electrónicoSolicitar
           
  • Nº publicaciones

    151

  • Nº visitas

    14256

  • Nº descargas

    29413


 

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Balanced Microwave Transmission Lines, Circuits, and Sensors

Martin, F.; Medina Mena, Francisco (IEEE (Institute of Electrical and Electronics Engineers), 2023)
This paper provides an overview of balanced (or differential-mode) structures operating at microwaves, including common-mode ...
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Design of Broadband Aperture-Coupled Stacked Microstrip Antennas Using Second-Order Filter Theory

García Alcaide, Nieves; Fernández Prieto, Armando; Rodríguez Boix, Rafael; Losada Torres, Vicente; Martel Villagrán, Jesús; Medina Mena, Francisco (IEEE, 2022)
In this article, the authors propose a lumped circuit methodology for the design of broadband stacked microstrip patch ...
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Disorder Effects in One-Dimensionally Periodic Extraordinary Transmission Structures

Camacho Aguilar, Miguel; Fernández Prieto, Armando; Rodríguez Boix, Rafael; Medina Mena, Francisco (MDPI, 2022)
Extraordinary transmission structures show promising capabilities for highly selective filters in both frequency and angle ...
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Compact Multilayered Balanced-to-Balanced Dual- and Tri-Band Diplexers Based on Magnetically Coupled Open-Loop Resonators

Medrán del Río, José Luis; Fernández Prieto, Armando; Martel Villagrán, Jesús; Rodríguez Boix, Rafael; Medina Mena, Francisco (IEEE, 2022)
Two new compact balanced-to-balanced diplexers composed of two multiband balanced bandpass filters in a multilayer ...
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Parametric analysis of the edge capacitance of uniform slots and application to frequency-variation permittivity sensors

Muñoz Enano, Jonathan; Martel Villagrán, Jesús; Vélez Rasero, Paris; Medina Mena, Francisco; Su, Lijuan; Martín Antolín, Ferran (MDPI, 2021)
This paper presents a parametric analysis relative to the effects of the dielectric constant of the substrate, substrate ...
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Guest Editorial: Method of analytical regularisation for new frontiers of applied electromagnetics

Lucido, Mario; Kobayashi, Kazuya; Medina Mena, Francisco; Nosich, Alexander; Vinogradova, Elena (Institution of Engineering and Technology (IET), 2021)
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Estructuras planas con simetría glide para rechazo de modo común

Santos, Victoria dos Ortega; Fernández Prieto, Armando; Medina Mena, Francisco (2021)
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On the Modeling of Microstrip Lines Loaded With Dumbbell Defect-Ground-Structure (DB-DGS) and Folded DB-DGS Resonators

Su, Lijuan; Muñoz Enano, Jonathan; Vélez, Paris; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferran (Institute of Electrical and Electronics Engineers, 2021)
This paper presents a lumped-element equivalent circuit model of microstrip lines loaded with dumbbell defect-ground-structure ...
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Extraordinary Transmission and Radiation from Finite by Infinite Arrays of Slots

Camacho Aguilar, Miguel; Rodríguez Boix, Rafael; Medina Mena, Francisco; Hibbins, Alastair Paul; Sambles, John Roy (Institute of Electrical and Electronics Engineers, 2020)
In this communication an efficient method of moments (MoM) code is used for the analysis of the extraordinary transmission ...
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Multilayered balanced dual-band bandpass filter based on magnetically coupled open-loop resonators with intrinsic common-mode rejection

Medrán del Río, José Luis; Lujambio, Aintzane; Fernández Prieto, Armando; Martínez Ros, Alejandro Javier; Martel Villagrán, Jesús; Medina Mena, Francisco (Multidisciplinary Digital Publishing Institute (MDPI), 2020)
A new dual-band balanced bandpass filter based on magnetically coupled open-loop resonators in multilayer technology is ...
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On the Excitation of Magnetic Current Surface Waves in Truncated Periodic Arrays of Slots Under Extraordinary Transmission Conditions

Camacho Aguilar, Miguel; Losada Torres, Vicente; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2020)
In this paper, we explore the excitation of magnetic current surface waves in truncated periodic arrays of slots in a ...
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Planar Resonant Blazed Gratings from a Circuit Model Standpoint

Molero, Carlos; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Memarian, Mohammad; Itoh, Tatsuo (Institute of Electrical and Electronics Engineers, 2020)
The equivalent circuit approach (ECA) is used in this work to analyze and design a previously proposed one-dimensional ...
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Propagación de pseudo-plasmones en líneas de transmisión impresas periódicas

Lobato Gómez, David; Fernández Prieto, Armando; Medina Mena, Francisco (2019)
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NUFFT for the Efficient Spectral Domain MoM Analysis of a Wide Variety of Multilayered Periodic Structures

Camacho Aguilar, Miguel; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2019)
In this paper the Method of Moments (MoM) in the spectral domain is used for the analysis of multilayered structures ...
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Roadmap on metasurfaces

Quevedo Teruel, Óscar; Chen, Hongsheng; Díaz Rubio, Ana; Gok, Gurkan; Grbic, Anthony; Minatti, Gabriele; Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl; Medina Mena, Francisco (IOP Publishing, 2019)
Metasurfaces are thin two-dimensional metamaterial layers that allow or inhibit the propagation of electromagnetic waves ...
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On the Computation of the Dispersion Diagram of Symmetric One-Dimensionally Periodic Structures

Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl; Medina Mena, Francisco (MDPI, 2018)
A critical discussion on the computation of the dispersion diagram of electromagnetic guiding/radiating structures with ...
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Compact balanced-to-balanced diplexer based on split-ring resonators balanced bandpass filters

Fernández Prieto, Armando; Lujambio, Aintzane; Martín, Ferran; Martel Villagrán, Jesús; Medina Mena, Francisco; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2018)
A compact balanced-to-balanced diplexer composed of two balanced bandpass filters is proposed in this letter. The balanced ...
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Unlocking Complexity Using the ECA: The Equivalent Circuit Model as An Efficient and Physically Insightful Tool for Microwave Engineering

Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl; Medina Mena, Francisco (IEEE Computer Society, 2018)
In the study of electromagnetic wave propagation and scattering, researchers have always faced the dichotomy of dealing ...
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Physically-insightful equivalent circuit models for electromagnetic periodic structures

Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl; Medina Mena, Francisco (IOP Publishing Ltd., 2018)
In this presentation it will be discussed how to obtain analytical or quasi-analytical equivalent circuits to deal with ...
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Balanced-To-Balanced Microstrip Diplexer Based on Magnetically Coupled Resonators

Fernández Prieto, Armando; Lujambio, Aintzane; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferrán; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2018)
Two balanced-To-balanced planar diplexers based on magnetically coupled microstrip resonators are proposed in this paper. ...
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Resonant Modes of a Waveguide Iris Discontinuity: Interpretation in Terms of Canonical Circuits

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2018)
This paper presents an eigenproblem for computing the resonances of multiresonant irislike discontinuities in waveguides. ...
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The Beauty of Symmetry: Common-mode rejection filters for high-speed interconnects and balanced microwave circuits

Martin, Ferran; Naqui, Jordi; Fernández Prieto, Armando; Vélez, Paris; Bonache, Jordi; Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Common-mode rejection filters operating at microwave frequencies have been the subject of intensive research activity in ...
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Wideband analytical equivalent circuit for coupled asymmetrical nonaligned slit arrays

Molero Jiménez, Carlos; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (American Physical Society, 2017)
Microstructured metallic devices have been extensively studied because of their interesting properties for controlling the ...
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Theoretical and experimental exploration of finite sample size effects on the propagation of surface waves supported by slot arrays

Camacho Aguilar, Miguel; Rodríguez Boix, Rafael; Medina Mena, Francisco; Hibbins, Alastair P.; Sambles, J. Roy (American Institute of Physics, 2017)
The propagation of surface waves supported by a finite array of slots perforated on a zero thickness perfect electrically ...
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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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Líneas de transmisión artificiales para señales diferenciales con rechazo de modo común

Reina Campo, Pablo; Medina Mena, Francisco; Fernández Prieto, Armando (2017)
En el campo de las comunicaciones eléctricas, el uso del espectro de microondas se ha ido generalizando progresivamente, ...
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Annular apertures in metallic screens as extraordinary transmission and frequency selective surface structures

Rodríguez Ulibarri, Pablo; Navarro Cía, Miguel; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Beruete, Miguel (Institute of Electrical and Electronics Engineers, 2017)
A 2-D periodic array of annular apertures (or ring slots) is studied using an accurate circuit model. The model accounts ...
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Compact Balanced Dual-Band Bandpass Filter Based on Modified Coupled-Embedded Resonators

Bagci, Fulya; Fernández Prieto, Armando; Lujambio, Aintzane; Martel Villagrán, Jesús; Bernal Méndez, Joaquín; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2017)
A new compact balanced dual-band bandpass filter based on coupled-embedded resonators with modified ground plane is presented ...
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On the extraordinary optical transmission in parallel plate waveguides for non-TEM modes

Camacho Aguilar, Miguel; Rodríguez Boix, Rafael; Medina Mena, Francisco; Hibbins, Alastair P.; Sambles, J. Roy (The Optical Society, 2017)
Extraordinary transmission has been recently measured in a parallel plate waveguide (PPWG) through a metal strip with a ...
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Making metals transparent: A circuit model approach

Molero Jiménez, Carlos; Medina Mena, Francisco; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis (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 ...
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Simplified Modal Expansion to Analyze Frequency-Selective Surfaces: An Equivalent Circuit Approach

Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl; García Vigueras, María; Medina Mena, Francisco; Mosig, Juan Ramón (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 ...
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Accurate circuit modeling of fishnet structures for negative-index-medium applications

Torres, Víctor; Mesa Ledesma, Francisco Luis; Navarro Cía, Miguel; Rodríguez Berral, Raúl; Beruete, Miguel; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2016)
Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit ...
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Wideband analytical equivalent circuit for one-dimensional periodic stacked arrays

Molero Jiménez, Carlos; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Yakovlev, Alexander B. (American Physical Society, 2016)
A wideband equivalent circuit is proposed for the accurate analysis of scattering from a set of stacked slit gratings ...
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Computationally efficient analysis of extraordinary optical transmission through infinite and truncated subwavelength hole arrays

Camacho Aguilar, Miguel; Rodríguez Boix, Rafael; Medina Mena, Francisco (American Physical Society, 2016)
The authors present a computationally efficient technique for the analysis of extraordinary transmission through both ...
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Excitation of Discrete and Continuous Spectrum in Subdiffraction Wire-Medium Type Lenses

Mesa Ledesma, Francisco Luis; Forouzmand, Ali; Yakovlev, Alexander B.; Hanson, George W.; Rodríguez Berral, Raúl; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2016)
Subwavelength imaging of the near field of a magnetic line-source excitation is studied for several wire-medium (WM) lens ...
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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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Transmisión y absorción de ondas electromagnéticas por estructuras periódicas

Chavero Royán, José; Medina Mena, Francisco (2016)
En el presente trabajo se estudia la transmisión y absorción de ondas electromagnéticas a través de un determinado tipo ...
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Simple and compact balanced bandpass filters based on magnetically coupled resonators

Fernández Prieto, Armando; Lujambio, Aintzane; Martel Villagrán, Jesús; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2015)
A simple strategy is proposed to design differential-mode bandpass filters with good common-mode (CM) rejection using ...
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Non-uniform sinusoidally modulated half-mode leaky-wave lines for near-field focusing pattern synthesis

Martínez Ros, Alejandro Javier; Gómez Tornero, José Luis; Losada Torres, Vicente; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2015)
A novel non-uniform sinusoidally modulated half-mode microstrip structure with application to near-field focused leaky-wave ...
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Ultra-compact (80 mm 2) differential-mode ultra-wideband (UWB) bandpass filters with common-mode noise suppression

Vélez, Paris; Naqui, Jordi; Fernández Prieto, Armando; Bonache, Jordi; Mata Contreras, Javier; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferran (Institute of Electrical and Electronics Engineers, 2015)
This paper presents a novel approach for the implementation of balanced ultra-wideband (UWB) bandpass filters with common-mode ...
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Analytical Multimodal Network Approach for 2-D Arrays of Planar Patches/Apertures Embedded in a Layered Medium

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2015)
A fully analytical multimodal equivalent circuit is presented for the modeling of the scattering of an obliquely incident ...
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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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Modeling of Nonresonant Longitudinal and Inclined Slots for Resonance Tuning in ENZ Waveguide Structures

Vojnović, Nebojša; Jokanovic, Branka; Radovanović, Miloš; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2015)
Novel methods are presented for the independent resonance tuning in rectangular waveguide epsilon-near-zero (ENZ) structures. ...
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Analytical circuit model for stacked slit gratings

Molero, Carlos; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Yakovlev, Alexander B. (Institute of Electrical and Electronics Engineers, 2014)
This work presents a rigorous circuit model to compute the transmission/reflection properties of a finite number of stacked ...
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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 ...
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Enhanced modelling of split-ring resonators couplings in printed circuits

Bojanić, Radovan; Milošević, Vojislav; Jokanovic, Branka; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2014)
An enhanced equivalent circuit approach for the magnetic/electric interaction of single split-ring resonators (SRRs) with ...
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Analytical circuit model for 1-D periodic T-shaped corrugated surfaces

Molero Jiménez, Carlos; Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2014)
An analytical circuit model is obtained to study the reflection of TM polarized electromagnetic waves that impinge obliquely ...
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Spatial angular filtering by FSSs made of chains of interconnected SRRs and CSRRs

Ortiz, Julián D.; Baena, Juan D.; Losada Torres, Vicente; Medina Mena, Francisco; Araque, Javier L. (Institute of Electrical and Electronics Engineers, 2013)
Two frequency selective surfaces (FSSs) made of an infinite set of parallel 1-D chains of interconnected split ring ...
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A Novel U-Shaped Tri-Band Antenna on High Permittivity Multilayer Substrate for Wireless Communications

Aghzout, O.; Naghar, A.; Medina Mena, Francisco; Alaydrus, M.; Essaaidi, M. (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 ...
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Self-complementary metasurface for designing narrow band pass/stop filters

Ortiz, Julián D.; Baena, Juan D.; Losada Torres, Vicente; Medina Mena, Francisco; Marqués Sillero, Ricardo; Araque Quijano, Javier Leonardo (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 ...
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Differential bandpass filters with common-mode suppression based on stepped impedance resonators (SIRs)

Vélez, Paris; Naqui, Jordi; Fernández Prieto, Armando; Durán Sindreu, Miguel; Bonache, Jordi; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferran (Institute of Electrical and Electronics Engineers, 2013)
A novel strategy for the design of common-mode suppressed differential (or balanced) filters, based on stepped impedance ...
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Analytical circuit model for dipole frequency-selective surfaces

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; García Vigueras, María (Institute of Electrical and Electronics Engineers, 2013)
This contribution provides a fully analytical transmission-line circuit model for the transmission/reflection of an obliquely ...
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Study and Design of a Compact Parallel Coupled Microstrip Band-Pass Filter for a 5 GHz Unlicensed Mobile WiMAX Networks

Naghar, A.; Aghzout, O.; Medina Mena, Francisco; Alaydrus, M.; Essaaidi, M. (International Journal of Science and Technology, 2013)
In this paper, a compact parallel coupled microstrip band-pass filter (BPF) is used to design a wideband third order of ...
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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)
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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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Differential bandpass filter with common-mode suppression based on open split ring resonators and open complementary split ring resonators

Vélez, Paris; Naqui, Jordi; Fernández Prieto, Armando; Durán Sindreu, Miguel; Bonache, Jordi; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferran (Institute of Electrical and Electronics Engineers, 2013)
Differential (balanced) microstrip bandpass filters (BPFs) implemented by combining open split ring resonators (OSRRs) and ...
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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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Transmission through stacked 2D periodic distributions of square conducting patches

Kaipa, Chandra S. R.; Yakovlev, Alexander B.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (American Institute of Physics, 2012)
In this paper, we study the transmissivity of electromagnetic waves through stacked two-dimensional printed periodic arrays ...
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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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Low-terahertz transmissivity with a graphene-dielectric micro-structure

Kaipa, Chandra S.R.; Yakovlev, Alexander B.; Hanson, George W.; Padooru, Yashwanth R.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2012)
In this paper, we report on the analysis of transmissivity of electromagnetic waves through a stack of dielectric slabs ...
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New absorbing boundary conditions and analytical model for multilayered mushroom-type metamaterials: Applications to wideband absorbers

Padooru, Yashwanth R.; Yakovlev, Alexander B.; Kaipa, Chandra S.R.; Hanson, George W.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Glisson, Allen W. (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 ...
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Generalized additional boundary conditions and analytical model for multilayered mushroom-type wideband absorbers

Padooru, Yashwanth R.; Yakovlev, Alexander B.; Kaipa, Chandra S.R.; Hanson, George W.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Glisson, Allen W. (Institute of Electrical and Electronics Engineers, 2012)
We present an analytical model to study the reflection properties of a multilayered wire media loaded with 2-D arrays of ...
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Analytical wideband model for strip/slit gratings loaded with dielectric slabs

Rodríguez Berral, Raúl; Molero Jiménez, Carlos; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2012)
This paper presents a fully analytical model to determine the transmission and reflection properties of planar 1-D ...
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Fully analytical circuit-like approach for the TE scattering by narrow-slit printed gratings

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2012)
A fully analytical solution for the scattering of a uniform TE polarized plane wave by an infinite periodic printed array ...
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Enhanced transmission with a graphene-dielectric microstructure at low-terahertz frequencies

Kaipa, Chandra S. R.; Yakovlev, Alexander B.; Hanson, George W.; Padooru, Yashwanth R.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (American Physical Society, 2012)
Here, we report on the transmissivity of electromagnetic waves through a stack of monolayer graphene sheets separated by ...
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Quasi-analytical modeling of transmission/reflection in strip/slit gratings loaded with dielectric slabs

Rodríguez Berral, Raúl; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; García Vigueras, María (Institute of Electrical and Electronics Engineers, 2012)
This paper presents a quasi-analytical approach to study the classic topic of transmission/reflection of electromagnetic ...
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Simplified circuit model for arrays of metallic dipoles sandwiched between dielectric slabs under arbitrary incidence

García Vigueras, María; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Rodríguez Berral, Raúl; Gómez Tornero, José Luis (Institute of Electrical and Electronics Engineers, 2012)
This work presents an equivalent circuit to model the transmission/ reflection of a plane wave that impinges obliquely on ...
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Multi-band high-impedance surface absorbers with a single resistive sheet: Circuit theory model

Padooru, Yashwanth R.; Yakovlev, Alexander B.; Kaipa, Chandra S.R.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (Institute of Electrical and Electronics Engineers, 2011)
We present a simple and efficient circuit model for the analysis of multi-band absorption characteristics of a stack of ...
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Equivalent circuits for conventional and extraordinary reflection in dipole arrays

García Vigueras, María; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Rodríguez Berral, Raúl; Gómez Tornero, José Luis (Institute of Electrical and Electronics Engineers, 2011)
This presents an equivalent transmission-line circuit that accounts for the scattering of a TE polarized plane wave that ...
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Split rings-based differential transmission lines with common-mode suppression

Naqui, Jordi; Fernández Prieto, Armando; Durán Sindreu, Miguel; Selga, Jordi; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Martín, Ferran (Institute of Electrical and Electronics Engineers, 2011)
A novel microstrip differential transmission line with common-mode noise suppression is proposed and experimentally ...
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A band-pass/stop filter made of SRRs and C-SRRs

Ortiz, Julián D.; Baena, Juan D.; Marqués Sillero, Ricardo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2011)
Frequency Selective Surfaces (FSS) are usually classified into two big groups depending on wether they are made of unconnected ...
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Analytical modeling of compound metallic reflection gratings

Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Skigin, Diana Carina (Institute of Electrical and Electronics Engineers, 2011)
The transmission and reflection of electromagnetic waves impinging on metallic surfaces with periodically distributed slits ...
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Circuit modeling of multiband high-impedance surface absorbers in the microwave regime

Padooru, Yashwanth R.; Yakovlev, Alexander B.; Kaipa, Chandra S. R.; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (American Physical Society, 2011)
In this paper, we present a simple circuit model to study the absorption of electromagnetic waves by a multilayer structure ...
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Analytical model for the transmission of electromagnetic waves through arrays of slits in perfect conductors and lossy metal screens

Yang, Rui; Rodríguez Berral, Raúl; Medina Mena, Francisco; Hao, Yang (American Institute of Physics, 2011)
This paper presents a very simple analytical model for the analysis of the resonant transmission of microwaves or millimeter ...
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Broadband Extraordinary Transmission in a single sub-wavelength aperture

Tang, Wenxuan; Hao, Yang; Medina Mena, Francisco (Optical Society of America, 2010)
Coordinate transformation is applied to design an all-dielectric device for Extraordinary Transmission (ET) in a single ...
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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)
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Circuit model for a periodic array of slits sandwiched between two dielectric slabs

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (American Institute of Physics, 2010)
This paper proposes an equivalent circuit model that uses lumped elements and transmission lines to explain the transmission ...
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Extraordinary transmission through arrays of slits: A circuit theory model

Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Skigin, Diana Carina (Institute of Electrical and Electronics Engineers, 2010)
Extraordinary transmission and other interesting related phenomena for 1-D periodic arrays of slits (compound diffraction ...
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Study of extraordinary transmission in a circular waveguide system

Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Ruiz Cruz, Jorge A.; Rebollar, Jésus M.; Montejo Garai, José Ramón (Institute of Electrical and Electronics Engineers, 2010)
Extraordinary transmission through periodic distributions of sub-wavelength holes made in opaque screens has been demonstrated ...
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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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Application of stub loaded folded stepped impedance resonators to dual band filter design

Velázquez Ahumada, María del Castillo; Mesa Ledesma, Francisco Luis; Martel Villagrán, Jesús; Medina Mena, Francisco (2010)
Patente. Invención
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Filtros RF y microondas paso bajo usando líneas microtira y guías coplanares combinadas.

Velazquez Ahumada, M. Del Castillo; Martel Villagrán, Jesús; Medina Mena, Francisco (Oficina Española de Patentes y Marcas , 2009)
Filtros RF y microondas bajo paso usando líneas microtira y guías coplanares combinadas.La presente invención se refiere ...
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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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Analytical theory of wave propagation through stacked fishnet metamaterials

Marqués Sillero, Ricardo; Jelinek, Lukas; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Optical Society of America, 2009)
This work analyzes the electromagnetic wave propagation through periodically stacked fishnets from zero frequency to the ...
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Experimental verification of extraordinary transmission without surface plasmons

Medina Mena, Francisco; Ruiz Cruz, J. A.; Mesa Ledesma, Francisco Luis; Rebollar, J. M.; Montejo Garai, J. R.; Marqués Sillero, Ricardo (American Institute of Physics, 2009)
This letter provides an experimental demonstration of extraordinary transmission in a closed waveguide system loaded with ...
Tesis Doctoral
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Filtros distribuidos y localizados en tecnología mixta microstrip/Guía coplanar

Velázquez Ahumada, María del Castillo; Martel Villagrán, Jesús; Medina Mena, Francisco (2009)
En esta memoria pretendemos contribuir al desarrollo de nuevos diseños tanto de filtros distribuidos como de filtros ...
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Some advances in the circuit modeling of extraordinary optical transmission

Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl (Brno University of Technology, 2009)
The phenomenon of extraordinary optical transmission (EOT) through electrically small holes perforated on opaque metal ...
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Microstrip circuit analog of a complex diffraction phenomenon

Fernández Prieto, Armando; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (American Institute of Physics, 2009)
This letter presents a methodology to reproduce at microwave frequencies the physical behavior of certain diffraction ...
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Analytical theory of extraordinary transmission through metallic diffraction screens perforated by small holes

Marqués Sillero, Ricardo; Mesa Ledesma, Francisco Luis; Jelinek, Lukas; Medina Mena, Francisco (Optical Society of America, 2009)
In this letter, the problem of extraordinary (ET) transmission of electromagnetic waves through opaque screens perforated ...
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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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An efficient approach for the computation of 2-D Green's functions with 1-D and 2-D periodicities in homogeneous media

López Fructos, Ana María; Rodríguez Boix, Rafael; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2008)
This paper presents an algorithm for the acceleration of the series involved in the computation of 2-D homogeneous Green's ...
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Equivalent circuit model to explain extraordinary transmission

Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Marqués Sillero, Ricardo (Institute of Electrical and Electronics Engineers, 2008)
This work proposes a circuit model based explanation for the extraordinary transmission (ET) of light phenomenon studied ...
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Extraordinary transmission through arrays of electrically small holes from a circuit theory perspective

Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Marqués Sillero, Ricardo (Institute of Electrical and Electronics Engineers, 2008)
Extraordinary optical transmission of light or electromagnetic waves through metal plates periodically perforated with ...
Patente. Invención
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Líneas de retardo y multiplexores de microondas basados en transductores de ondas magnetoinductivas y/o electroinductivas en tecnología planar

Freire Rosales, Manuel José; Marqués Sillero, Ricardo; Baena Coello, Juan Domingo; Medina Mena, Francisco; Martel Villagran, Jesús; Gómez Laso, Miguel Ángel; Martín Antolín, Juan Fernando (Oficina Española de Patentes y Marcas (OEPM), 2007)
Líneas de retardo y multiplexores de microondas basados en transductores de ondas magnetoinductivas y/o electroinductivas ...
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Application of total least squares to the derivation of closed-form green's functions for planar layered media

Rodríguez Boix, Rafael; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2007)
A new technique is presented for the numerical derivation of closed-form expressions of spatial-domain Green's functions ...
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Design of compact low-pass elliptic filters using double-sided MIC technology

Velázquez Ahumada, María del Castillo; Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2007)
A novel implementation of stepped-impedance low-pass elliptic filters is presented in this paper. The filters are based ...
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Design of wide-band semi-lumped bandpass filters using open split ring resonators

Martel Villagrán, Jesús; Bonache, Jordi; Marqués Sillero, Ricardo; Martín, Ferran; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2007)
Open split ring resonators (OSRRs) are used in this letter to design wide-band semi-lumped bandpass filters. OSRRs work ...
Patente. Invención
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Filtros y antenas de microondas y milimétricas basados en resonadores de anillos abiertos y en líneas de transmisión planares

Martín Antolín, Juan Fernando; Bonache Albacete, Jorge; Marqués Sillero, Ricardo; Baena Doello, Juan Domingo; Martel Villagran, Jesús; Medina Mena, Francisco; Falcone Lanas, Francisco; Lopetegui Beregaña, José María; Beruete Díaz, Miguel; Sorolla Ayza, Mario (Oficina Española de Patentes y Marcas (OEPM), 2006)
Filtros y antenas de microondas y milimétricas basados en resonadores de anillos abiertos y en líneas de transmisión ...
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Quasi-TM MoL/MoM approach for computing the transmission-line parameters of lossy lines

Plaza Valtueña, Gonzalo; Marqués Sillero, Ricardo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2006)
This paper presents a quasi-TM approach for the fundamental mode of transmission lines with semiconductor substrates and ...
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Numerical implementation of the mixed potential integral equation for planar structures with ferrite layers arbitrarily magnetized

Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Wiley-Blackwell, 2006)
This work presents a new implementation of the mixed potential integral equation (MPIE) for planar structures that can ...
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Near-field enhanced imaging by a magnetized ferrite slab

Marqués Sillero, Ricardo; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (American Institute of Physics, 2005)
This letter demonstrates the near-field imaging enhancement at microwave frequencies of two-dimensional sources by a ferrite ...
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Characteristics of aperture coupled microstrip antennas on magnetized ferrite substrates

León Fernández, Germán; Rodríguez Boix, Rafael; Freire Rosales, Manuel José; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2005)
The method of moments in the spectral domain is applied to the full-wave analysis of aperture coupled microstrip antennas ...
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Near-perfect tunneling and amplification of evanescent electromagnetic waves in a waveguide filled by a metamaterial: Theory and experiments

Baena, J.D.; Jelinek, J.; Marqués Sillero, Ricardo; Medina Mena, Francisco (American Physical Society, 2005)
Amplification of evanescent electromagnetic waves by a metamaterial slab is still a controversial issue. Metallic waveguides ...
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Planar magnetoinductive wave transducers: Theory and applications

Freire Rosales, Manuel José; Marqués Sillero, Ricardo; Medina Mena, Francisco; Laso, M. A. G.; Martín, F. (American Institute of Physics, 2004)
Transduction of raagnetoinductive waves (MIWs) in planar technology is demonstrated. A transducer consisting of a ...
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Parallel coupled microstrip filters with ground-plane aperture for spurious band suppression and enhanced coupling

Velázquez Ahumada, María del Castillo; Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2004)
Parallel coupled microstrip sections with a slotted ground plane are proposed as building blocks of coupled-line microstrip ...
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Enhanced Implementation of the Complex Images Method to Study Bound and Leaky Regimes in Layered Planar Printed Lines

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2004)
The discrete complex image technique, originally developed to deal with three-dimensional planar structures, has been ...
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Artificial magnetic metamaterial design by using spiral resonators

Baena, J.D.; Marqués Sillero, Ricardo; Medina Mena, Francisco; Martel Villagrán, Jesús (American Physical Society, 2004)
A metallic planar particle, that will be called spiral resonator (SR), is introduced as a useful artificial atom for ...
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Two-dimensional study of leaky modes in microstrip line with a semi-infinite cover layer

Rodríguez Berral, Raúl; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Wiley-Blackwell, 2004)
This work presents a two-dimensional (2-D) study of the modal spectrum of a single microstrip and a pair of coupled ...
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Radar cross section of stacked circular microstrip patches on anisotropic and chiral substrates

Losada Torres, Vicente; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2003)
Galerkin's method in the Hankel transform domain (HTD) is applied to the determination of the radar cross section (RCS) ...
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Experimental results on metamaterial simulation using SRR-loaded waveguides

Baena Doello, Juan Domingo; Marqués Sillero, Ricardo; Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2003)
The recently proposed Split Ring Resonator (SRR) - loaded waveguide as a simulator of a left-handed medium (LHM) is extended ...
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Comment on "electromagnetic resonances in individual and coupled split-ring resonators"

Marqués Sillero, Ricardo; Medina Mena, Francisco; Rafii-El-Idrissi, Rachid (American Institute of Physics, 2003)
Resonances appearing in split-ring resonators (SRR) were explained by the theory about the magnetoelectric coupling in the ...
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Marqués et al. reply

Marqués Sillero, Ricardo; Martel Villagrán, Jesús; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (American Physical Society, 2003)
A Reply to the Comment by I.G. Kondrat’ev and A.I. Smirnov.
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Full-wave analysis of tunable microstrip filters fabricated on magnetized ferrites

León Fernández, Germán; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2003)
The method of moments in the spectral domain was employed in the rigorous full-wave numerical determination of the scattering ...
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Full-wave analysis of the excitation of magnetostatic-surface waves by a semi-infinite microstrip transducer - Theory and experiment

Freire Rosales, Manuel José; Marqués Sillero, Ricardo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2003)
This paper presents a new method for the complete characterization of the radiation of magnetostatic-surface waves in ...
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Insertion loss of magnetostatic-surface wave transducers - Transmission-line model and experiment

Freire Rosales, Manuel José; Marqués Sillero, Ricardo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2003)
In this paper, a transmission-line model is developed for the computation of the insertion loss of magnetostatic-surface ...
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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)
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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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Left-handed-media simulation and transmission of EM waves in subwavelength split-ring-resonator-loaded metallic waveguides

Marqués Sillero, Ricardo; Medina Mena, Francisco; Martel Villagrán, Jesús; Mesa Ledesma, Francisco Luis (American Physical Society, 2002)
At microwave frequencies, hollow metallic waveguides behave in certain aspects as a “one-dimensional plasma.” This feature ...
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Efficient evaluation of reaction integrals in the EFIE analysis of planar layered structures with uniaxial anisotropy

Mesa Ledesma, Francisco Luis; Plaza Valtueña, Gonzalo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2002)
This paper presents an efficient implementation of the electric-field integral-equation (EFIE) method to deal with planar ...
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Analysis of the propagation of leaky magnetostatic modes in normally magnetized microstrip and slot lines

Marqués Sillero, Ricardo; Rafii-El-Idrissi, Rachid; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2002)
The propagation of leaky forward magnetostatic (MS) volume waves along ferrite-loaded microstrip and slot lines is analyzed. ...
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2-D analysis of leakage in printed-circuit lines using discrete complex-images technique

Bernal Méndez, Joaquín; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2002)
The mixed-potential integral equation is combined with the discrete complex-images technique to analyze the complete ...
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Full-wave analysis of a wide class of microstrip resonators fabricated on magnetized ferrites with arbitrarily oriented bias magnetic field

León Fernández, Germán; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2002)
A numerical code has been developed for the full-wave determination of the resonant frequencies and quality factors of ...
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On the fast approximation of Green's functions in MPIE formulations for planar layered media

Shuley, Nicholas V.Z.; Rodríguez Boix, Rafael; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 2002)
The numerical implementation of the complex image approach for the Green's function of a mixed-potential integral-equation ...
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Role of bianisotropy in negative, permeability and left-handed metamaterials

Marqués Sillero, Ricardo; Medina Mena, Francisco; Rafii-El-Idrissi, Rachid (American Physical Society, 2002)
The recently proposed artificial media with negative magnetic permeability and left-handed metamaterials are revisited at ...
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Treatment of singularities and quasi-static terms in the EFIE analysis of planar structures

Plaza Valtueña, Gonzalo; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2002)
This paper reports on some mathematical and numerical details of the application of the electric field integral equation ...
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Efficient analysis of magnetostatic surface waves in printed and suspended ferrite loaded strip lines

Rafii-El-Idrissi, Rachid; Marqués Sillero, Ricardo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2001)
This paper analyzes the guidance of magnetostatic surface waves (MSSW) by a metallic strip printed on a ferrimagnetic slab ...
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Comprehensive analysis of strip- and slot-line guided forward, backward, and complex magnetostatic waves

Rafii-El-Idrissi, Rachid; Marqués Sillero, Ricardo; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2001)
This paper presents a comprehensive and accurate analysis of the guidance of volume and surface magnetostatic waves by ...
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On the use of SDA for the analysis of boxed planar lines with complex media

Plaza Valtueña, Gonzalo; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2001)
This paper discusses the conditions under which the spectral-domain approach (SDA) can be applied to the analysis of boxed ...
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Full-wave analysis of nonplanar transmission lines on layered medium by means of mpie and complex image theory

Bernal Méndez, Joaquín; Medina Mena, Francisco; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2001)
In this paper, a multiconductor transmission line consisting of arbitrary cross-sectional perfect conductors printed on a ...
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Analysis of leakage in multilayered microstrip lines using complex images

Bernal Méndez, Joaquín; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2001)
The Mixed Potential Integral Equation (MPIE) is combined with the complex image method to analyze the complete spectrum ...
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Comments on "Internal impedance of conductors of rectangular cross section"

Medina Mena, Francisco; Marqués Sillero, Ricardo (Institute of Electrical and Electronics Engineers, 2001)
The alternate current (ac) internal impedance of rectangular cross-sectional conductors used as transmission lines and ...
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A suitable integral equation for the quasi-TEM analysis of hybrid strip/slot-like structures

Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2001)
This paper reports on a suitable formulation of the spectraldomain/integral-equation method for the quasi-TEM analysis of ...
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Evaluation of the radar cross section of circular microstrip patches on anisotropic and chiral substrates

Losada Torres, Vicente; Rodríguez Boix, Rafael; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2001)
Galerkin's method in the Hankel transform domain (HTD) is applied to the determination of the radar cross section (RCS) ...
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Fast full-wave analysis of multistrip transmission lines based on MPIE and complex image theory

Bernal Méndez, Joaquín; Medina Mena, Francisco; Rodríguez Boix, Rafael; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 2000)
The mixed-potential electric-field integral equation is used in conjunction with the Galerkin's method and complex image ...
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Determination of the radar cross section of stacked circular microstrip patches

Rodríguez Boix, Rafael; Losada Torres, Vicente; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2000)
Galerkin's method in the Hankel transform domain (HTD) was used to determine the radar cross section (RCS) of stacked ...
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On the efficient implementation of SDA for boxed strip-like and slot-like structures

Cano Gómez, Gabriel; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1998)
This paper reports on an enhanced implementation of the spectral-domain analysis (SDA) of boxed multistrip or multislot ...
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Quick quasi-TEM analysis of multiconductor transmission lines with rectangular cross section

Bernal Méndez, Joaquín; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1997)
This paper presents an efficient and accurate procedure for computing the quasi-static matrix parameters ([C], [L], [G], ...
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Systematic Computation of the Modal Spectrum of Boxed Microstrip, Finline, and Coplanar Waveguides Via an Efficient SDA

Cano Gómez, Gabriel; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1995)
This work reports an efficient and systematic procedure to obtain the complete modal spectrum of multilayer boxed planar ...
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Analysis, Synthesis, and Experimental Validation of a New Type of Microstrip Transition

Masot Conde, Fátima; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1995)
This paper presents the theoretical analysis, synthesis, and experimental validation of a wideband transition between a ...
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Quick Computation of [C] and [L] Matrices of Generalized Multiconductor Coplanar Waveguide Transmission Lines

Drake Moyano, Enrique; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1994)
An enhanced spectral domain quasi-TEM analysis of generalized coplanar waveguide transmission lines (GCPWTL) is presented. ...
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Analysis and Experimental Validation of a Type of Three-Microstrip Directional Coupler

Masot Conde, Fátima; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1994)
This paper presents an efficient analysis of a semi reentrant microstrip coupler section. The structure provides tight ...
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Improved quasi-TEM spectral domain analysis of boxed coplanar multiconductor microstrip lines

Drake Moyano, Enrique; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1993)
This paper presents a very efficient quasi-TEM analysis of multistrip transmission systems embedded in a layered medium. ...
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On the Quasi-TEM and Full-Wave Approaches Applied to Coplanar Multistrip on Lossy Dielectric Layered Media

Mesa Ledesma, Francisco Luis; Cano Gómez, Gabriel; Medina Mena, Francisco; Marqués Sillero, Ricardo; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1992)
The characteristic parameters of coplanar multistrip lines embedded in multilayered lossless/lossy substrates are commonly ...
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An Improved Iterative Technique for the Quasi-Tem Analysis of Generalized Planar Lines

Drake Moyano, Enrique; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1992)
The Generalized Bioconjugate Gradient Method (GBGM) and FFT algorithms are used for the quasi-TEM analysis of generalized ...
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Efficient Spectral Domain Analysis of Generalized Multistrip Lines in Stratified Media Including Thin, Anisotropic, and Lossy Substrates

Cano Gómez, Gabriel; Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1992)
This paper deals with the full-wave analysis of multiconductor microstrip lines used in electrooptic modulators (EOM), ...
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Quasi-Analytical Static Solution of the Boxed Microstrip Line Embedded in a Layered Medium

Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1992)
In this paper, a quasi-analytical method is presented to carry out the quasi-TEM study of a microstrip line embedded in a ...
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Quasi-TEM analysis of multilayered, multiconductor coplanar structures with dielectric and magnetic anisotropy including substrate losses

Horno Montijano, Manuel; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Marqués Sillero, Ricardo (Institute of Electrical and Electronics Engineers, 1990)
A quasi-TEM (transverse electromagnetic) analysis of multiconductor planar lines embedded in a layered structure involving ...
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Spectral and variational analysis of generalized cylindrical and elliptical strip and microstrip lines

Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1990)
The variational technique in the spectral domain (VTSD) is shown to be an efficient method for computing the quasi-TEM ...
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Generalized Spectral Analysis of Planar Lines on Layered Media Including Uniaxial and Biaxial Dielectric Substrates

Medina Mena, Francisco; Horno Montijano, Manuel; Baudrand, Henri (Institute of Electrical and Electronics Engineers, 1989)
In this paper the spectral-domain analysis (SDA) is generalized in order to compute the dispersive properties of a wide ...
Tesis Doctoral
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Estudio de líneas de transmisión encapsuladas de configuración planar en dieléctricos anisótropos

Medina Mena, Francisco; Horno Montijano, Manuel (1987)
En este trabajo se desarrollan sendos métodos de cálculo para el estudio de las características de propagación de sistemas ...
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Capacitance and Inductance Matrices for Multistrip Structures in Multilayered Anisotropic Dielectrics

Medina Mena, Francisco; Horno Montijano, Manuel (Institute of Electrical and Electronics Engineers, 1987)
In this paper we present a unified variational approach to determine the capacitance and inductance matrices of generalized ...