Browsing by Author "Tamayo Palau, José María"

A recursive acceleration technique for static potential Green's functions of a rectangular cavity combining image and modal series
Tamayo Palau, José María; LópezPeña, Sergio; Mattes, Michael; Heldring, Alexander; Rius Casals, Juan Manuel; Mosig, Juan Ramón (201103)
Article
Restricted access  publisher's policyA hybrid acceleration algorithm for the computation of the static potential Green’s functions of a rectangular cavity is proposed. Similarly to Ewald’s method, it combines the series expansions in terms of images and modes. ... 
Accelerated direct solution of the MoMVIE for dielectric scatterers
Heldring, Alexander; Tamayo Palau, José María; Rius Casals, Juan Manuel; Úbeda Farré, Eduard (2011)
Conference report
Open AccessThe Multiscale Compressed Block Decomposition algorithm (MSCBD), a direct (noniterative) linear solver, is applied to accelerate the solution of the MoMVIE formulation for dielectric scatterers. Numerical solutions are ... 
Application of Multilevel Adaptive Cross Approximation (MLACA) to electromagnetic scattering and radiation problems
Tamayo Palau, José María; Heldring, Alexander; Rius Casals, Juan Manuel (20090914)
Conference report
Open Access 
Comparison of lossy filters and predistorted filters using novel software
Padilla Díaz, Alberto; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Ernst, Cristoph; Rius Casals, Juan Manuel; Tamayo Palau, José María; O'Callaghan Castellà, Juan Manuel (IEEE Microwave Theory and Techniques Society, 2010)
Conference lecture
Open Access 
Compression of the MoM matrix using macrobasis functions with a fullcontrolable accuracy
Tamayo Palau, José María; Heldring, Alexander; Rius Casals, Juan Manuel (EurAPP, 2009)
Conference report
Open AccessA new accuracycontrolable method for compressing the MoM impedance matrix of an electromagnetic problem based on a basis change plus a truncation with a threshold is presented here. The idea is to switch to singular basis ... 
Discretization of the electricmagnetic field integral equation with the DivergenceTaylorOrthogonal basis functions
Úbeda Farré, Eduard; Tamayo Palau, José María; Rius Casals, Juan Manuel (2011)
Conference report
Restricted access  publisher's policyWe present the discretization in Method of Moments of the ElectricMagnetic Field Integral Equation (EMFIE) with the divergenceTaylorOrthogonal basis functions, a facetoriented set of basis functions. The EMFIE stands ... 
DivergenceTaylorOrthogonal basis functions for the discretization of secondkind surface integral equations in the Method of Moments
Úbeda Farré, Eduard; Tamayo Palau, José María; Rius Casals, Juan Manuel (2011)
Conference report
Restricted access  publisher's policyWe present new implementations in the method of moments of two types of secondkind integral equations: (i) the recently proposed electricmagnetic field integral equation (EMFIE) for perfectly conducting objects, and ... 
Facetoriented discretization of the electricmagnetic field integral equation for the accurate scattering analysis of perfectly conducting sharpedged objects
Tamayo Palau, José María; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (2011)
Conference report
Restricted access  publisher's policyIn this paper, we present the discretization in Method of Moments of the ElectricMagnetic Field Equation with the divergenceTaylorOrthogonal basis functions, a facetoriented set of basis functions. We show for a ... 
Fast and Accurate Computation of Hypersingular Integrals in Galerkin Surface Integral Equation Formulations via the Direct Evaluation Metho
Polimeridis, Athanasios G.; Tamayo Palau, José María; Rius Casals, Juan Manuel; Mosig, Juan Ramón (201104)
Article
Restricted access  publisher's policyHypersingular 4D integrals, arising in the Galerkin discretization of surface integral equation formulations, are computed by means of the direct evaluation method. The proposed scheme extends the basic idea of the ... 
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 ... 
Fast direct solution of the combined field integral equation
Heldring, Alexander; Tamayo Palau, José María; Rius Casals, Juan Manuel (2010)
Conference report
Open AccessThe Method of Moments for electromagnetic scattering and radiation problems is often used in conjunction with the EFIE because the EFIE allows the analysis of open surfaces. For electrically large closed surfaces, the ... 
Lossy filter synthesis of Lband planar filters using novel software
Padilla Díaz, Alberto; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Rocas Cantenys, Eduard; Ernst, Cristoph; Rius Casals, Juan Manuel; Tamayo Palau, José María; O'Callaghan Castellà, Juan Manuel (2011)
Conference report
Restricted access  publisher's policyLossy 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 rolloff is obtained, ... 
Multilevel adaptive cross approximation (MLACA)
Tamayo Palau, José María; Heldring, Alexander; Rius Casals, Juan Manuel (IEEE, 20090630)
Conference report
Open AccessIn 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 ... 
Multilevel adaptive cross approximation and direct evaluation method for fast and accurate discretization of electromagnetic integral equations
Tamayo Palau, José María (Universitat Politècnica de Catalunya, 20110217)
Doctoral thesis
Open Access 
Multiscale compressed block decomposition for fast direct solution of method of moments linear system
Heldring, Alexander; Rius Casals, Juan Manuel; Tamayo Palau, José María; Parrón, Josep; Úbeda Farré, Eduard (201102)
Article
Restricted access  publisher's policyThe multiscale compressed block decomposition algorithm (MSCBD) is presented for highly accelerated direct (non iterative) solution of electromagnetic scattering and radiation problems with the method of moments (MoM). ... 
Novel Selfloop basis functions for the stability of the Linearlinear discretization of the Electric Field Integral Equation at very low frequencies
Tamayo Palau, José María; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (IEEE Press. Institute of Electrical and Electronics Engineers, 200906)
Conference report
Open AccessA selfloop basis functions is presented, a new set of solenoidal basis functions, which, together with the loopstar basis functions, define a rearrangement of the LLdiscretization in method of moments of the EFIE that ... 
On the degrees of freedom in the interaction between sets of elementary scatterers
Heldring, Alexander; Tamayo Palau, José María; Rius Casals, Juan Manuel (2009)
Conference report
Open AccessA 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 ... 
On the efficient evaluation of hypersingular integrals in Galerkin surface integral equation formulations via the direct evaluation method
Tamayo Palau, José María; Polimeridis, Athanasios G.; Rius Casals, Juan Manuel; Mosig, Juan Ramón (2010)
Conference report
Open AccessIn this paper, the direct evaluation method tailored for the hypersingular integrals arising in Galerkin surface integral equation formulations is developed.[...] The proposed method utilizes a series of coordinate ... 
Orthogonal basis functions for the discretization of the MagneticField Integral Equation in the Low Frequency regime
Úbeda Farré, Eduard; Tamayo Palau, José María; Rius Casals, Juan Manuel (2010)
Conference report
Restricted access  publisher's policyWe compare the accuracy in the RCS computation from the discretization in Method of Moments of the Magneticfield Integral Equation of two different sets of orthogonal facetoriented basis functions: (i) a recently proposed ... 
Simulation of shipborne small HF antennas with RWG discretization and fast solver
Rius Casals, Juan Manuel; Jofre Roca, Lluís; Tamayo Palau, José María; Heldring, Alexander; Úbeda Farré, Eduard (2010)
Conference report
Restricted access  publisher's policyIn this paper, an alternative approach has been used to analyze an electrically small antenna (1.2m in the 230 MHz band) in a large ship (238m length) using a generic EFIE simulation code with Rao, Wilton and Glisson (RWG) ...