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Works (41)

A parallel Monte Carlo method for solving electromagnetic scattering in clusters of dielectric objects

Journal of Computational Physics
2022-08 | Journal article
Contributors: Hector Lopez-Menchon; Eduard Ubeda; Alexander Heldring; Juan M. Rius
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Fast Analysis and Optimization of Sparsely Distributed Partial Modification Problems

IEEE Transactions on Microwave Theory and Techniques
2022-08 | Journal article
Contributors: Xiaoxing Fang; Alexander Heldring; Juan M. Rius; Qunsheng Cao
Source: check_circle
Crossref

Low-Rank Matrix Factorization Method for Multiscale Simulations: A Review

IEEE Open Journal of Antennas and Propagation
2021 | Journal article
Contributors: Mengmeng Li; Dazhi Ding; Alexander Heldring; Jun Hu; Rushan Chen; Giuseppe Vecchi
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Crossref

Acceleration of Born Series by Change of Variables

IEEE Transactions on Antennas and Propagation
2021-09 | Journal article
Contributors: Hector Lopez-Menchon; Juan M. Rius; Alexander Heldring; Eduard Ubeda
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Crossref

Improving the Accuracy of the Adaptive Cross Approximation With a Convergence Criterion Based on Random Sampling

IEEE Transactions on Antennas and Propagation
2021-01 | Journal article
Contributors: Alexander Heldring; Eduard Ubeda; Juan M. Rius
Source: check_circle
Crossref

Nested Fast Adaptive Cross Approximation Algorithm for Solving Electromagnetic Scattering Problems

IEEE Transactions on Microwave Theory and Techniques
2020-12 | Journal article
Contributors: Xiaoxing Fang; Alexander Heldring; Juan M. Rius; Xinlei Chen; Qunsheng Cao
Source: check_circle
Crossref

Stochastic Estimation of the Frobenius Norm in the ACA Convergence Criterion

IEEE Transactions on Antennas and Propagation
2015-03 | Journal article
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On the Convergence of the ACA Algorithm for Radiation and Scattering Problems

IEEE Transactions on Antennas and Propagation
2014-07 | Journal article
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Accelerated Direct Solution of the Method-of-Moments Linear System

Proceedings of the Ieee
2013 | Journal article
DOI:

10.1109/JPROC.2012.2193369

Part of ISSN:

0018-9219

Contributors: Heldring, Alex; Tamayo, Jose Maria; Ubeda, Eduard; Rius, Juan M.
Source: Self-asserted source
alex heldring via ResearcherID

Sparsified Adaptive Cross Approximation Algorithm for Accelerated Method of Moments Computations

Ieee Transactions on Antennas and Propagation
2013 | Journal article
DOI:

10.1109/TAP.2012.2215292

Part of ISSN:

0018-926X

Contributors: Heldring, Alex; Tamayo, Jose M.; Simon, Carine; Ubeda, Eduard; Rius, Juan M.
Source: Self-asserted source
alex heldring via ResearcherID

Stable Discretization of the Electric-Magnetic Field Integral Equation With the Taylor-Orthogonal Basis Functions

Ieee Transactions on Antennas and Propagation
2013 | Journal article
DOI:

10.1109/TAP.2012.2227925

Part of ISSN:

0018-926X

Contributors: Ubeda, Eduard; Tamayo, J. M.; Rius, J. M.; Heldring, A.
Source: Self-asserted source
alex heldring via ResearcherID

A Recursive Acceleration Technique for Static Potential Green's Functions of a Rectangular Cavity Combining Image and Modal Series

Ieee Transactions on Microwave Theory and Techniques
2011 | Journal article
DOI:

10.1109/TMTT.2010.2103088

Part of ISSN:

0018-9480

Contributors: Tamayo, Jose M.; Lopez-Pena, Sergio; Mattes, Michael; Heldring, Alexander; Rius, Juan M.; Mosig, Juan R.
Source: Self-asserted source
alex heldring via ResearcherID

Multilevel Adaptive Cross Approximation (MLACA)

Ieee Transactions on Antennas and Propagation
2011 | Journal article
DOI:

10.1109/TAP.2011.2165476

Part of ISSN:

0018-926X

Contributors: Tamayo, Jose M.; Heldring, Alexander; Rius, Juan M.
Source: Self-asserted source
alex heldring via ResearcherID

Multiscale Compressed Block Decomposition for Fast Direct Solution of Method of Moments Linear System

Ieee Transactions on Antennas and Propagation
2011 | Journal article
DOI:

10.1109/TAP.2010.2096385

Part of ISSN:

0018-926X

Contributors: Heldring, Alex; Rius, Juan M.; Tamayo, Jose M.; Parron, Josep; Ubeda, Eduard
Source: Self-asserted source
alex heldring via ResearcherID

Zeroth-Order Complete Discretizations of Integral-Equation Formulations Involving Conducting or Dielectric Objects at Very Low Frequencies

Ieee Transactions on Antennas and Propagation
2011 | Journal article
DOI:

10.1109/TAP.2011.2152316

Part of ISSN:

0018-926X

Contributors: Ubeda, E.; Tamayo, J. M.; Rius, J. M.; Heldring, A.
Source: Self-asserted source
alex heldring via ResearcherID

Analysis of numerical integration in the evaluation of hyper-singular integrals in Galerkin surface integral equation formulations via the direct evaluation method

Proceedings of the Fourth European Conference on Antennas and Propagation
2010 | Journal article
Part of ISSN:

978-84-7653-472-4

Contributors: Tamayo, Jose M.; Polimeridis, Athanasios G.; Rius, Juan M.; Heldring, Alexander; Mosig, Juan R.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Comments on "Fast Direct Solution of Method of Moments Linear System"

Ieee Transactions on Antennas and Propagation
2010 | Journal article
DOI:

10.1109/TAP.2009.2039330

Part of ISSN:

0018-926X

Contributors: Heldring, A.; Rius, J. M.; Tamayo, J. M.
Source: Self-asserted source
alex heldring via ResearcherID

Direct Mom Solution of Electrically Large Problems with N(2) Complexity

Proceedings of the Fourth European Conference on Antennas and Propagation
2010 | Journal article
Part of ISSN:

978-84-7653-472-4

Contributors: Heldring, A.; Rius, J. M.; Tamayo, J. M.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Software Framework for integration of Method of Moments kernels with Direct or Iterative Fast Solvers

Proceedings of the Fourth European Conference on Antennas and Propagation
2010 | Journal article
Part of ISSN:

978-84-7653-472-4

Contributors: Rius, J. M.; Herrero, J. A.; Tamayo, J. M.; Heldring, A.; Ubeda, E.; Parron, J.; Lopez-Pena, S.; Polimeridis, A. G.; Mosig, J. R.; Espinosa, H. et al.
Source: Self-asserted source
alex heldring via ResearcherID

Application of Multilevel Adaptive Cross Approximation (MLACA) to electromagnetic scattering and radiation problems

Iceaa: 2009 International Conference on Electromagnetics in Advanced Applications, Vols 1 and 2
2009 | Journal article
Part of ISSN:

978-1-4244-3385-8

Contributors: Tamayo, Jose M.; Heldring, Alexander; Rius, Juan M.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Compression of the MoM Matrix Using Macrobasis Functions with a Full-Controlable Accuracy

2009 3rd European Conference on Antennas and Propagation, Vols 1-6
2009 | Journal article
Part of ISSN:

978-1-4244-4753-4

Contributors: Tamayo, J. M.; Heldring, A.; Rius, J. M.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Multilevel Adaptive Cross Approximation (MLACA)

2009 Ieee Antennas and Propagation Society International Symposium and Usnc/ursi National Radio Science Meeting, Vols 1-6
2009 | Journal article
Part of ISSN:

978-1-4244-3646-0

Contributors: Tamayo, J. M.; Heldring, A.; Rius, J. M.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

On the Degrees of Freedom in the Interaction between Sets of Elementary Scatterers

2009 3rd European Conference on Antennas and Propagation, Vols 1-6
2009 | Journal article
Part of ISSN:

978-1-4244-4753-4

Contributors: Heldring, A.; Tamayo, J. M.; Rius, J. M.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Compressed block-decomposition algorithm for fast capacitance extraction

Ieee Transactions on Computer-Aided Design of Integrated Circuits and Systems
2008 | Journal article
DOI:

10.1109/TCAD.2007.907236

Part of ISSN:

0278-0070

Contributors: Heldring, Alex; Rius, Juan M.; Tamayo, Jose Maria; Parron, Josep
Source: Self-asserted source
alex heldring via ResearcherID

Fast iterative solution of integral equations with method of moments and matrix decomposition algorithm - Singular value decomposition

Ieee Transactions on Antennas and Propagation
2008 | Journal article
DOI:

10.1109/TAP.2008.926762

Part of ISSN:

0018-926X

Contributors: Rius, Juan M.; Parron, Josep; Heldring, Alexander; Tamayo, Jose M.; Ubeda, Eduard
Source: Self-asserted source
alex heldring via ResearcherID

Multiscale CBD for Fast Direct Solution of MoM Linear System

2008 Ieee Antennas and Propagation Society International Symposium, Vols 1-9
2008 | Journal article
Part of ISSN:

978-1-4244-2041-4

Contributors: Heldring, A.; Tamayo, J. M.; Rius, J. M.; Parron, J.; Ubeda, E.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Accurate computation of the impedance elements of the magnetic-field integral equation with RWG basis functions through field-domain and source-domain integral swapping

Microwave and Optical Technology Letters
2007 | Journal article
DOI:

10.1002/mop.22228

Part of ISSN:

0895-2477

Contributors: Ubeda, Eduard; Heldring, Alex; Rius, Juan M.
Source: Self-asserted source
alex heldring via ResearcherID

Application of the multilevel field interpolation algorithm to large PEC structures in 2-D

2007 Ieee Antennas and Propagation Society International Symposium, Vols 1-12
2007 | Journal article
Part of ISSN:

1522-3965;978-1-4244-0877-1

Contributors: Espinosa, Hugo G.; Heldring, Alex; Rius, Juan M.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

Fast direct solution of method of moments linear system

Ieee Transactions on Antennas and Propagation
2007 | Journal article
DOI:

10.1109/TAP.2007.908804

Part of ISSN:

0018-926X

Contributors: Heldring, Alex; Rius, Juan. M.; Tamayo, Jose Maria; Parron, Josep; Ubeda, Eduard
Source: Self-asserted source
alex heldring via ResearcherID

Multilevel MDA-CBI for fast direct solution of large scattering and radiation problems

2007 Ieee Antennas and Propagation Society International Symposium, Vols 1-12
2007 | Journal article
Part of ISSN:

1522-3965;978-1-4244-0877-1

Contributors: Heldring, Alex; Rius, Juan M.; Tamayo, Jose M.; Parron, J.; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

The S-Transform and its inverses: Side effects of discretizing and filtering

Ieee Transactions on Signal Processing
2007 | Journal article
DOI:

10.1109/TSP.2007.897893

Part of ISSN:

1053-587X

Contributors: Simon, Carine; Ventosa, Sergi; Schimmel, Martin; Heldring, Alexander; Danobeitia, Juan Jo; Gallart, Josep; Manuel, Antoni
Source: Self-asserted source
alex heldring via ResearcherID

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

Ieee Transactions on Antennas and Propagation
2006 | Journal article
DOI:

10.1109/TAP.2006.882194

Part of ISSN:

0018-926X

Contributors: Heldring, A.; Ubeda, E.; Rius, J. M.
Source: Self-asserted source
alex heldring via ResearcherID

Efficient scattering computation for arrays of long thin-strips

Microwave and Optical Technology Letters
2006 | Journal article
DOI:

10.1002/mop.21284

Part of ISSN:

0895-2477

Contributors: Ubeda, E; Heldring, A; Rius, JM
Source: Self-asserted source
alex heldring via ResearcherID

Accurate and efficient end cap model for cylindrical wire antenna analysis

Electronics Letters
2005 | Journal article
DOI:

10.1049/el:20051989

Part of ISSN:

0013-5194

Contributors: Heldring, A; Ubeda, E; Rius, JM
Source: Self-asserted source
alex heldring via ResearcherID

Efficient full-kernel evaluation for thin wire analysis

Microwave and Optical Technology Letters
2005 | Journal article
DOI:

10.1002/mop.20672

Part of ISSN:

0895-2477

Contributors: Heldring, A; Rius, JM
Source: Self-asserted source
alex heldring via ResearcherID

Accurate numerical modeling of the TARA reflector system

Ieee Transactions on Antennas and Propagation
2004 | Journal article
DOI:

10.1109/TAP.2004.831408

Part of ISSN:

0018-926X

Contributors: Heldring, A; Rius, JM; Ligthart, LP; Cardama, A
Source: Self-asserted source
alex heldring via ResearcherID

Conclusions of the FractalComs Project: Exploring the limits of Fractal Electrodynamics for the future telecommunication technologies

Ieee Antennas and Propagation Society Symposium, Vols 1-4 2004, Digest
2004 | Journal article
DOI:

10.1109/APS.2004.1330091

Part of ISSN:

0-7803-8302-8

Contributors: Rius, JM; Gonzalez-Arbesu, J; Romeu, J; Cardama, A; Heldring, A; Ubeda, E; Mosig, JR; Cabol, E; Gomez, R; Rubio, A et al.
Source: Self-asserted source
alex heldring via ResearcherID

Efficient full kernel calculation for wire antennas

Ieee Antennas and Propagation Society Symposium, Vols 1-4 2004, Digest
2004 | Journal article
DOI:

10.1109/APS.2004.1330090

Part of ISSN:

0-7803-8302-8

Contributors: Heldring, A; Rius, JM; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

The integral equation MEI (IE-MEI)

Ieee Antennas and Propagation Society Symposium, Vols 1-4 2004, Digest
2004 | Journal article
DOI:

10.1109/APS.2004.1331817

Part of ISSN:

0-7803-8302-8

Contributors: Rius, JM; Parron, J; Ubeda, E; Heldring, A; Mosig, JR; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

The thin wire model for thick and highly curved wire structures

Ieee Antennas and Propagation Society Symposium, Vols 1-4 2004, Digest
2004 | Journal article
DOI:

10.1109/APS.2004.1330245

Part of ISSN:

0-7803-8302-8

Contributors: Heldring, A; Rius, JM; IEEE
Source: Self-asserted source
alex heldring via ResearcherID

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

Ieee Transactions on Magnetics
2002 | Journal article
DOI:

10.1109/20.996091

Part of ISSN:

0018-9464

Contributors: Heldring, A; Rius, JM; Ligthart, L
Source: Self-asserted source
alex heldring via ResearcherID