Results
author = "Rius Casals, Juan Manuel"
Sección recta de blancos radar complejos en tiempo real
Author(s) :
Rius Casals, Juan Manuel
Description :
Este trabajo resuelve el problema de gran interés para la industria aeronáutica: el cálculo de la sección recta (RCS) de blancos radar complejos en tiempo real. Para ello basta una estación de trabajo con un acelerador grafico 3-d hardware en lugar de los super-ordenadores vectoriales que requieren ...
Repository :
Universitat Politècnica de Catalunya: Tesis Doctorals en Xarxa (TDX)
Language(s) :
Spanish
Novel monopolar MFIE MoM-discretization for the scattering analysis of small objects
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
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
On the degrees of freedom in the interaction between sets of elementary scatterers
Description :
A series of numerical experiments has been executed to investigate the number of degrees of freedom in the interaction
between large scattering bodies. The relation between degrees of freedom and operating frequency establishes the computational complexity for integral equation methods fast solvers ...
Repository :
UPCommons - E-prints UPC
Language(s) :
English
Taylor-orthogonal basis functions for the discretization in method of moments of second kind integral equations in the scattering analysis of perfectly conducting or dielectric objects
Description :
We present new implementations in Method of Moments of two types of second kind integral equations: (i) the recently proposed Electric-Magnetic Field Integral Equation (EMFIE), for perfectly conducting objects, and (ii) the Müller formulation, for homogeneous or piecewise homogeneous dielectric obje...
Repository :
UPCommons - E-prints UPC
Language(s) :
English
Figure of merit for multiband antennas
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
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
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
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
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