Results
author = "Rius Casals, Juan Manuel"
> : "Integral equations"
(x)
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
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
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
Preconditioning techniques in the analysis of finite metamaterial slabs
Description :
In the method of moments (MoM) electric field integral equation (EFIE) analysis of slabs of metamaterials, we show that a left-preconditioning scheme by blocks gathering interactions between basis functions belonging to each basic cell of the metamaterial reaches convergence in less iterations and w...
Repository :
UPCommons - E-prints UPC
Language(s) :
English
Integral formulation of the measured equation of invariance: a novel sparse matrix boundary element method
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
On the efficient evaluation of hyper-singular integrals in Galerkin surface integral equation formulations via the direct evaluation method
Author(s) :
Tamayo Palau, José María
,
Polimeridis, Athanasios G.
,
Rius Casals, Juan Manuel
,
Mosig, Juan Ramón
Description :
In this paper, the direct evaluation method tailored for the hyper-singular integrals arising in Galerkin surface integral equation formulations is developed.[...] The proposed method utilizes a series of coordinate transformations together with a re-ordering of the integrations in order to reduce t...
Repository :
UPCommons - E-prints UPC
Language(s) :
English
Accurate numerical modeling of the TARA reflector system
Author(s) :
Heldring, Alexander
,
Rius Casals, Juan Manuel
,
Ligthart, Leo P.
,
Cardama Aznar, Ángel
Description :
The radiation pattern of the large parabolic reflectors
of the Transportable Atmospheric RAdar system (TARA), developed
at Delft University of Technology, has been accurately simulated.
The electric field integral equation (EFIE) formulation has
been applied to a model of the reflectors including th...
Repository :
UPCommons - E-prints UPC
Language(s) :
English
A general electromagnetic simulation tool to predict the microwave nonlinear response of planar, arbitrarily-shaped HTS structures
Author(s) :
Parrón Granados, Josep
,
Collado Gómez, Juan Carlos
,
Mateu Mateu, Jordi
,
Rius Casals, Juan Manuel
,
Duffo Ubeda, Núria
Description :
This work describes a simulation tool being developed at UPC to predict the microwave nonlinear behavior of planar superconducting structures with very few restrictions on the geometry of the planar layout. The software is intended to be applicable to most structures used in planar HTS circuits, inc...
Repository :
UPCommons - E-prints UPC
Language(s) :
English
A General Electromagnetic Simulation Tool to Predict the Microwave Nonlinear Response of Planar, Arbitrarily-Shaped HTS Structures
Author(s) :
Parrón Granados, Josep
,
Collado Gómez, Juan Carlos
,
Mateu Mateu, Jordi
,
Rius Casals, Juan Manuel
,
Duffo Ubeda, Núria
Description :
This work describes a simulation tool being developed at UPC to predict the microwave nonlinear behavior of planar superconducting structures with very few restrictions on the geometry of the planar layout. The software is intended to be applicable to most structures used in planar HTS circuits, inc...
Repository :
UPCommons - E-prints UPC
Language(s) :
English