Exploració per autor "Úbeda Farré, Eduard"
Ara es mostren els items 23-42 de 93
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Efficient computation of the effect of wire ends in thin wire analysis
Heldring, Alexander; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
Article
Accés obertComputationally efficient algorithms are presented for the computation of the effect of flat wire ends (end caps) in the common thin wire model. A uniform charge distribution over the surface of the end cap is assumed, and ... -
Enhanced discretization of surface integral equations for resonant scattering analysis of sharp-edged plasmonic nanoparticles
Sekulic, Ivan; Tzarouchis, Dimitrios C.; Ylä-Oijala, Pasi; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (American Physical Society (APS), 2019-04-10)
Article
Accés obertThe surface integral equation (SIE) method, discretized with the method of moments, is a well-established methodology for the scattering analysis of subwavelength plasmonic nanoparticles. SIEs are usually discretized with ... -
Examen final
García Vizcaíno, David; Muñoz Porcar, Constantino; Úbeda Farré, Eduard (Universitat Politècnica de Catalunya, 2019-01-08)
Examen
Accés restringit a la comunitat UPC -
Examen final. Part tècnica
Úbeda Farré, Eduard (Universitat Politècnica de Catalunya, 2018-06-11)
Examen
Accés restringit a la comunitat UPC -
Examen final. Part tècnica
Úbeda Farré, Eduard (Universitat Politècnica de Catalunya, 2019-01-10)
Examen
Accés restringit a la comunitat UPC -
Examen MQ. Part tècnica
Úbeda Farré, Eduard (Universitat Politècnica de Catalunya, 2018-10-29)
Examen
Accés restringit a la comunitat UPC -
Examen MQ. Part tècnica
Úbeda Farré, Eduard (Universitat Politècnica de Catalunya, 2018-04-11)
Examen
Accés restringit a la comunitat UPC -
Facet-oriented discretization of the electric-magnetic field integral equation for the accurate scattering analysis of perfectly conducting sharp-edged objects
Tamayo Palau, José María; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (2011)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, we present the discretization in Method of Moments of the Electric-Magnetic Field Equation with the divergence-Taylor-Orthogonal basis functions, a facetoriented set of basis functions. We show for a ... -
Fast direct solution of method of moments linear system
Heldring, Alexander; Rius Casals, Juan Manuel; Tamayo Palau, José María; Parrón Granados, Josep; Úbeda Farré, Eduard (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-11)
Article
Accés obertA novel algorithm, the compressed block decomposition (CBD), is presented for highly accelerated direct (non iterative) method of moments (MoM) solution of electromagnetic scattering and radiation problems. The algorithm ... -
Fast shadowing computation in physical optics surface
Rius Casals, Juan Manuel; Carbo, Alex; Úbeda Farré, Eduard; Heldring, Alexander (2013)
Text en actes de congrés
Accés restringit per política de l'editorialGRECO code has been updated by replacing the graphical processing technique for computation of Physical Optics surface integral by a hybrid CPU-graphical processing approach. The resulting code needs more CPU power for ... -
Frequency extrapolation of IE-MEI linear system Coefficients in 2D
Rius Casals, Juan Manuel; Heldring, Alexander; Úbeda Farré, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe Integral Equation MEI (IE-MEI) method for the sparsification of Method of Moments linear system matrix is revisited here. It achieves cpu computation time and storage memory requirements of order O(N ) (for 2D perfectly ... -
Geometric algebra formulation of the Calderon Projector
López Menchón, Héctor; Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Heldring, Alexander (2019)
Comunicació de congrés
Accés restringit per política de l'editorialGeometric Algebra provides a mathematical frame-work that allows to express many equations of physics in a more compact way [1]. It unifies the electric and the magnetic field in a single mathematical object: a multivector. ... -
GRECO Code Rejuvenated: hybrid CPU-graphical processing
Rius Casals, Juan Manuel; Carbo, Alex; Úbeda Farré, Eduard; Heldring, Alexander (IEEE, 2013)
Text en actes de congrés
Accés restringit per política de l'editorialGRECO code has been updated by replacing the graphical processing technique for computation of Physical Optics surface integral by a hybrid CPU-graphical processing approach. The resulting code needs more CPU power for ... -
GRECO: 30 years of graphical processing techniques for RCS computation
Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Heldring, Alexander (2018)
Text en actes de congrés
Accés obertThis contribution to the special session in honor of Prof. Rafael Gómez-Martín will address the 30 year development of graphical processing techniques (GRECO) for fast computation of Radar Cross Section (RCS) of ... -
Grid design benchmark on sheets with nonzero thickness
Úbeda Farré, Eduard; Rius Casals, Juan Manuel; Heldring, Alexander; López Menchón, Héctor (Universitat Politècnica de Catalunya. Remote Sensing, Antennas, Microwaves and Superconductivity Group (CommSensLab), 2022)
Text en actes de congrés
Accés obertThe conventional scattering analysis of perfectly conducting sheets ignores the scattering contribution of the rim. The so-called thin-surface scheme arises from the discretization of the Electric-field Integral Equation ... -
Grid-robust discretization of integral equations in the electromagnetic scattering analysis of homogeneous targets with geometric singularities
Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialThe conventional method-of-moment schemes of discretization for the scattering analysis of homogeneous targets, perfectly conducting or dielectric, rely on edge-based basis functions. This restricts the modelling of the ... -
Hierarchical discretization of the PMCHWT formulation with jump current discontinuities for the scattering analysis of ferromagnetic objects
Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertIn the discretization of the Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) formulation by the Method of Moments (MoM), the unknown currents are usually expanded with the divergence-conforming RWG set. Recently, the ... -
Improved accuracy in the scattering analysis of arbitrarily shaped ferromagnetic objects
Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés restringit per política de l'editorialThe electromagnetic scattering analysis of arbitrarily shaped ferromagnetic bodies is usually carried out with the Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) integral equation. In the Method of Moments (MoM) discretization ... -
Improved accuracy in the scattering analysis of infinitely long ferromagnetic objects
Sekulic, Ivan; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe scattering of transversal magnetic (TM) electromagnetic waves impinging on infinitely long homogeneous ferromagnetic objects is usually analyzed with the Poggio-Miller-Chan-Harrington-Wu-Tsai (PMCHWT) integral equation. ... -
Improvements in randomized matrix compression methods for numerical analysis of antennas and scatterers
López Menchón, Héctor; Heldring, Alexander; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Luis Landesa-Porras, 2023)
Comunicació de congrés
Accés obertWe propose a randomized Pseudo Skeleton (or CUR) Approximation method to compress the H-matrices of linear systems that arise in the discretization of integral equations in electromagnetic scattering. This method is highly ...