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• (author = "Rius Casals, Juan Manuel" AND publisher = "IEEE")
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author = "Rius Casals, Juan Manuel" > : "IEEE" (x)
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Found 32 documents, displaying page 1 of 4

Novel monopolar MFIE MoM-discretization for the scattering analysis of small objects

Author(s) : Úbeda Farré, Eduard , Rius Casals, Juan Manuel
Description : We present a novel method of moments (MoM)-magnetic field integral equation (MFIE) discretization that performs closely to the MoM-EFIE in the electromagnetic analysis of moderately small objects. This new MoM-MFIE discretization makes use of a new set of basis functions that we name monopolar Rao-W...
Repository : UPCommons - E-prints UPC
Language(s) : English

Generalization of the equivalence between physical optics and aperture integration for radiation from open-ended structures

Author(s) : Rius Casals, Juan Manuel , Michalski, Krzysztof A.
Description : The theorem of equivalence between the Kirchhoff aperture integration (AI) and the physical optics (PO) approach applied to the interior walls of a open-ended waveguide is generalized to the case of any open-ended structure (OES).
Repository : UPCommons - E-prints UPC
Language(s) : English

Multilevel adaptive cross approximation (MLACA)

Author(s) : Tamayo Palau, José María , Heldring, Alexander , Rius Casals, Juan Manuel
Description : In recent years, several methods have been developed for accelerating the iterative solution of the electromagnetic integral equations discretized by Method of Moments (MoM). Most of them are based on the compressibility of parts of the MoM matrix when they correspond to the interaction between two ...
Repository : UPCommons - E-prints UPC
Language(s) : English

Novel Self-loop basis functions for the stability of the Linear-linear discretization of the Electric Field Integral Equation at very low frequencies

Author(s) : Tamayo Palau, José María , Úbeda Farré, Eduard , Rius Casals, Juan Manuel
Description : A self-loop basis functions is presented, a new set of solenoidal basis functions, which, together with the loop-star basis functions, define a rearrangement of the LL-discretization in method of moments of the EFIE that results in a stable impedance matrix at very low frequencies.
Repository : UPCommons - E-prints UPC
Language(s) : English

Figure of merit for multiband antennas

Author(s) : Rius Casals, Juan Manuel , Santos Blanco, M. Concepción , Parrón Granados, Josep
Description : This communication defines a figure of merit for multiband antennas that gives an objective quantification of the similarities between radiation patterns at the different antenna operating bands.
Repository : UPCommons - E-prints UPC
Language(s) : English

Application of the multilevel decomposition algorithm to the frequency analysis of large microstrip antenna arrays

Author(s) : Parrón Granados, Josep , Rius Casals, Juan Manuel , Mosig, Juan R.
Description : The application of integral equation methods based in the method of moments discretization to solve large antenna arrays is difficult due to the fact that the computational requirements increase rapidly with the number of unknowns. This is critical when a frequency analysis of the antenna is require...
Repository : UPCommons - E-prints UPC
Language(s) : English

New block ILU preconditioner scheme for numerical analysis of very large electromagnetic problems

Author(s) : Heldring, Alexander , Rius Casals, Juan Manuel , Ligthart, Leo P.
Description : Large electromagnetic scattering and radiation problems are tackled by iterative solvers, which require the use of huge preconditioners. Most often, the incomplete LU decomposition (ILU) of the preconditioner is applied to the system matrix at each iteration. However, the preconditioner ILU cannot b...
Repository : UPCommons - E-prints UPC
Language(s) : English

On the testing of the magnetic field integral equation with RWG basis functions in method of moments

Author(s) : Rius Casals, Juan Manuel , Úbeda Farré, Eduard , Parrón Granados, Josep
Description : For electromagnetic analysis using method of moments (MoM), three-dimensional (3-D) arbitrary conducting surfaces are often discretized in Rao, Wilton and Glisson basis functions. The MoM Galerkin discretization of the magnetic field integral equation (MFIE) includes a factor Ω0 equal to the solid a...
Repository : UPCommons - E-prints UPC
Language(s) : English

Efficient computation of the effect of wire ends in thin wire analysis

Author(s) : Heldring, Alexander , Úbeda Farré, Eduard , Rius Casals, Juan Manuel
Description : Computationally 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 the full or exact kernel of the electric field integral equation formulation ...
Repository : UPCommons - E-prints UPC
Language(s) : English

Integral formulation of the measured equation of invariance: a novel sparse matrix boundary element method

Author(s) : Rius Casals, Juan Manuel , Pous Andrés, Rafael , Cardama Aznar, Ángel
Description : A 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 and magnetic Green's functions of the environment to obtain a matrix equation ...
Repository : UPCommons - E-prints UPC
Language(s) : English
1 2 3 4 > >>

Found 32 documents, displaying page 1 of 4