Data

NameRodríguez Berral, Raúl
DepartmentFísica Aplicada I
Knowledge areaFísica Aplicada
Professional categoryProfesor Titular de Universidad
E-mailRequest
           

  Statistics

  • Items

    28

  • Visits

    2048

  • Downloads

    2541

  Publications

 

Article
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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, 2020-01-01)
The equivalent circuit approach (ECA) is used in this work to analyze and design a previously proposed one-dimensional ...
Article
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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, 2018-08-01)
A critical discussion on the computation of the dispersion diagram of electromagnetic guiding/radiating structures with ...
Article
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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., 2018-01-01)
In this presentation it will be discussed how to obtain analytical or quasi-analytical equivalent circuits to deal with ...
Article
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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, 2018-01-01)
This paper presents an eigenproblem for computing the resonances of multiresonant irislike discontinuities in waveguides. ...
Article
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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, 2018-01-01)
In the study of electromagnetic wave propagation and scattering, researchers have always faced the dichotomy of dealing ...
PhD Thesis
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Circuit modeling of periodic structures

Mesa Ledesma, Francisco Luis; Rodríguez Berral, Raúl; Molero Jiménez, Carlos (2017-02-06)
In the present dissertation the main goal consists in the derivation of analytical circuit models for di_erent types of ...
Article
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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, 2017-01-01)
Microstructured metallic devices have been extensively studied because of their interesting properties for controlling the ...
Article
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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, 2017-01-01)
A 2-D periodic array of annular apertures (or ring slots) is studied using an accurate circuit model. The model accounts ...
Article
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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, 2016-01-01)
A wideband equivalent circuit is proposed for the accurate analysis of scattering from a set of stacked slit gratings ...
Article
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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, 2016-01-01)
Solid metal films are well known to be opaque to electromagnetic waves over a wide frequency range, from low frequency to ...
Article
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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, 2016-01-01)
This communication extends a previously reported analytical circuit that models the plane wave scattering by 2-D arrays ...
Article
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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, 2016-01-01)
Metallic compound gratings are studied in this work by means of an analytical equivalent circuit approach in order to ...
Article
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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, 2016-01-01)
Subwavelength imaging of the near field of a magnetic line-source excitation is studied for several wire-medium (WM) lens ...
Article
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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, 2016-01-01)
Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit ...
Article
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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, 2015-01-01)
A fully analytical multimodal equivalent circuit is presented for the modeling of the scattering of an obliquely incident ...
Article
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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, 2014-01-01)
An analytical circuit model is obtained to study the reflection of TM polarized electromagnetic waves that impinge obliquely ...
Presentation
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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, 2014-01-01)
This work presents a rigorous circuit model to compute the transmission/reflection properties of a finite number of stacked ...
Presentation
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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, 2013-01-01)
This contribution provides a fully analytical transmission-line circuit model for the transmission/reflection of an obliquely ...
Article
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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, 2012-01-01)
This work presents an equivalent circuit to model the transmission/ reflection of a plane wave that impinges obliquely on ...
Presentation
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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, 2012-01-01)
A fully analytical solution for the scattering of a uniform TE polarized plane wave by an infinite periodic printed array ...
Article
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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, 2012-01-01)
This paper presents a fully analytical model to determine the transmission and reflection properties of planar 1-D ...
Article
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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, 2012-01-01)
This paper presents a quasi-analytical approach to study the classic topic of transmission/reflection of electromagnetic ...
Article
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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, 2011-01-01)
This paper presents a very simple analytical model for the analysis of the resonant transmission of microwaves or millimeter ...
Presentation
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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, 2011-01-01)
This presents an equivalent transmission-line circuit that accounts for the scattering of a TE polarized plane wave that ...
Article
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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, 2010-01-01)
This paper proposes an equivalent circuit model that uses lumped elements and transmission lines to explain the transmission ...
Article
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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, 2009-01-01)
The phenomenon of extraordinary optical transmission (EOT) through electrically small holes perforated on opaque metal ...
Article
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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, 2004-01-01)
This work presents a two-dimensional (2-D) study of the modal spectrum of a single microstrip and a pair of coupled ...
Article
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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, 2004-01-01)
The discrete complex image technique, originally developed to deal with three-dimensional planar structures, has been ...