Exploració per autor "Rius Casals, Juan Manuel"
Ara es mostren els items 113-132 de 223
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Harmonic balance algorithms for the nonlinear simulation of HTS devices
(KLUWER ACADEMIC/PLENUM PUBL, 2001-02-28)
Article
Accés obertThis paper describes the application of Harmonic Balance algorithms to predict nonlinear effects in planar High Temperature Superconductors (HTS) microwave circuits. The resulting algorithms are fast and efficient and can ... -
Hierarchical discretization of the PMCHWT formulation with jump current discontinuities for the scattering analysis of ferromagnetic objects
(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 ... -
High frequency radar cross section of complex objects in real time
(Institute of Electrical and Electronics Engineers (IEEE), 1991)
Text en actes de congrés
Accés obertIt is shown that real-time RCS (radar cross section) computation is possible with a high-performance graphics workstation. Physical optics (PO) and physical theory of diffraction (PTD) approximation are computed using the ... -
High frequency RCS graphical processing
(1990)
Text en actes de congrés
Accés obertThe results presented at this workshop have been obtained with a new and original approach: hardware graphical processing. High-frequency RCS of complex radar targets is computed in real time using a 3-D graphic workstation. ... -
High-frequency RCS of complex radar targets in real time
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1993-09-01)
Article
Accés obertThis paper presents a new and original approach for computing the high-frequency radar cross section (RCS) of complex radar targets in real time with a 3-D graphics workstation. The aircraft is modeled with I-DEAS solid ... -
High-Frequency RCS of Perfectly Conducting or Coated Complex Objects in Real Time
(1991)
Text en actes de congrés
Accés obertThis paper present a new and original approach to compute high-freqency radar cross section (RCS) of complex radar targets in real time using a 3-D graphic workstation. The aircraft is modelled with I-DEAS solid modeling ... -
Impact of bias field screening and dipole length in terahertz photoconductive antennas
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés restringit per política de l'editorialA numerical approach for the modelling of dipole Photoconductive Antennas (PCAs) is presented, based on the classical Drude model with extension to include the bias field screening due to both the space charge and the THz ... -
Impact of multi-path by ISS structure on GEROS-ISS measured waveforms
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe GNSS rEflectometry, Radio Occultation and Scatterometry onboard the International Space Station (GEROS-ISS) experiment consists of the installation of a GNSS reflectometry (GNSS-R) instrument on the International Space ... -
Improved accuracy in the scattering analysis of arbitrarily shaped ferromagnetic objects
(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
(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
(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 ... -
Improving the accuracy of the adaptive cross approximation with a convergence criterion based on random sampling
(2020-07-27)
Article
Accés obertThe accuracy of the Adaptive Cross Approximation (ACA) algorithm, a popular method for the compression of low rank matrix blocks in Method of Moment computations, is sometimes seriously compromised by unpredictable errors ... -
Integral Equation MEI (IE-MEI) analysis of homogeneus dielectric and plasmonic media in 2D
(2015)
Text en actes de congrés
Accés obertThis paper revisits the IE-MEI method and proposes a new formulation for high-loss didectric piecewise-homogeneous media. The aim of this work is lo assess if the bigh localization of surface plasmon polarltons helps in ... -
Integral equation mei applied to three-dimensional arbitrary surfaces
(Institution of Electrical Engineers, 1997-11)
Article
Accés obertThe authors present a new formulation of the integral equation of the measured equation of invariance (MEI) as a confined field integral equation discretised by the method of moments, in which the use of numerically derived ... -
Integral formulation of the measured equation of invariance
(Institution of Electrical Engineers, 1996-01)
Article
Accés obertA novel integral formulation of the measured equation of invariance is derived from the reciprocity theorem. This formulation leads to a sparse matrix equation for the induced surface current, resulting in great CPU time ... -
Integral formulation of the measured equation of invariance: a novel sparse matrix boundary element method
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1996-05-01)
Article
Accés obertA novel integral formulation of the measured equation of invariance method is derived from the reciprocity theorem and implemented for perfectly conducting (PEC) 2-D scattering problems. This formulation uses the electric ... -
Iterative method of moments solution of problems involving electrically large and concave geometries
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents a study of the scaling with frequency (computational complexity) of preconditioned iterative solution, using the Multilevel Fast Multipole Method, of a class of radiation and scattering problems that ... -
Lens based switched beam antenna for a 5G smart repeater
(2023-10)
Article
Accés obertA 16 switched beam lens based antenna with a coverage area of ±30° in the horizontal plane and from 0 to -20° in the vertical plane has been built and tested. The intended use of the antenna is as part of a smart repeater ... -
Lossy filter synthesis of L-band planar filters using novel software
(2011)
Text en actes de congrés
Accés restringit per política de l'editorialLossy synthesis techniques are used to synthesize high performance filters using resonators with a finite Q. With these techniques a transmission response of a lossless filter with lowest possible roll-off is obtained, ... -
LossyFilters
(2013-06-11)
Programari
Accés restringit per acord de confidencialitatThe LossyFilters software package has been written to synthesize filters following various forms of classical (no-loss considered in the synthesis), pre-distortion and prescribed insertion loss synthesis. This software ...
