Browsing by Author "Parrón Granados, Josep"

A general electromagnetic simulation tool to predict the microwave nonlinear response of planar, arbitrarilyshaped HTS structures
Parrón Granados, Josep; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; O'Callaghan Castellà, Juan Manuel (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20010331)
Article
Open AccessThis 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 ... 
A General Electromagnetic Simulation Tool to Predict the Microwave Nonlinear Response of Planar, ArbitrarilyShaped HTS Structures
Parrón Granados, Josep; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; O'Callaghan Castellà, Juan Manuel (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20010331)
Article
Open AccessThis 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 ... 
Analysis of microstrip antennas by multilevel matrix decomposition algorithm
Parrón Granados, Josep; Rius Casals, Juan Manuel; Heldring, Alexander; Úbeda Farré, Eduard; Mosig, Juan R (ESA, 1999)
Conference report
Open AccessIntegral equation methods (IE) are widely used in conjunction with Method of Moments (MoM) discretization for the numerical analysis of microstrip antennas. However, their application to large antenna arrays is difficult ... 
Analysis of reflector and horn antennas using multilevel fast multipole algorithm
Heldring, Alexander; Rius Casals, Juan Manuel; Parrón Granados, Josep; Cardama Aznar, Ángel; Ligthart, L P (CIMNE, 2000)
Conference report
Open AccessThe MultiLevel Fast Multipole Algorithm (MLFMA) has been implemented in a Method of Moments code for arbitrarily shaped metal surfaces discretized in Rao, Wilton and Glisson (RWG) basisfunctions. The accuracy of the ... 
Application of the multilevel decomposition algorithm to the frequency analysis of large microstrip antenna arrays
Parrón Granados, Josep; Rius Casals, Juan Manuel; Mosig, Juan R. (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20020331)
Article
Open AccessThe 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 ... 
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 (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 200711)
Article
Open AccessA 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 ... 
Figure of merit for multiband antennas
Rius Casals, Juan Manuel; Santos Blanco, M. Concepción; Parrón Granados, Josep (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20031130)
Article
Open AccessThis 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. 
General electromagnetic simulation tool to predict the microwave nonlinear response of planar, arbitrarilyshaped HTS structures
Parrón Granados, Josep; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; O'Callaghan Castellà, Juan Manuel (200103)
Article
Open AccessThis 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 ... 
General electromagnetic simulation tool to predict the microwave nonlinear response of planar, arbitrarilyshaped HTS structures
Parrón Granados, Josep; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; O'Callaghan Castellà, Juan Manuel (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20010331)
Article
Open AccessThis 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 ... 
Harmonic balance algorithms for the nonlinear simulation of HTS devices
Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Parrón Granados, Josep; Pons, J.; O'Callaghan Castellà, Juan Manuel; Rius Casals, Juan Manuel (KLUWER ACADEMIC/PLENUM PUBL, 20010228)
Article
Open AccessThis 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 ... 
Integral equation mei applied to threedimensional arbitrary surfaces
Rius Casals, Juan Manuel; Parrón Granados, Josep; Úbeda Farré, Eduard; Mosig, J R (Institution of Electrical Engineers, 199711)
Article
Open AccessThe 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 ... 
Method of moments enhancement technique for the analysis of Sierpinski prefractal antennas
Parrón Granados, Josep; Romeu Robert, Jordi; Rius Casals, Juan Manuel; Mosig, Juan R. (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20030831)
Article
Open AccessThe numerical analysis of highly iterated Sierpinski microstrip patch antennas by method of moments (MoM) involves many tiny subdomain basis functions, resulting in a very large number of unknowns. The Sierpinski ... 
Multilevel matrix decomposition algorithm for analysis of electrically large electromagnetic problems in 3d
Rius Casals, Juan Manuel; Parrón Granados, Josep; Úbeda Farré, Eduard; Mosig, J R (199908)
Article
Restricted access  publisher's policyThe multilevel matrix decomposition algorithm (MLMDA) has been implemented in 3D for the solution of large electromagnetic problems. The electric field integral equation is solved for arbitrary surfaces discretized using ... 
On the testing of the magnetic field integral equation with RWG basis functions in method of moments
Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Parrón Granados, Josep (IEEEINST ELECTRICAL ELECTRONICS ENGINEERS INC, 20011130)
Article
Open AccessFor electromagnetic analysis using method of moments (MoM), threedimensional (3D) arbitrary conducting surfaces are often discretized in Rao, Wilton and Glisson basis functions. The MoM Galerkin discretization of the ...