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- R. J. Adams, F. X. Canning, +8 authors J. Parrón
- 2010

Sparse solution of an integral equation formulation of scattering from open PEC targets, " Microw.ization of the impedance matrix in a localizing basis, " J. Electromagn. " Modular fast direct electromagnetic analysis using local-global solution modes, " IEEE Trans. direct solution of the electric field integral equation using non-overlapped localizing… (More)

- Eduard Ubeda, Jose M. Tamayo, Juan M. Rius
- CEM'11 Computational Electromagnetics…
- 2011

Vie present new implementations in the 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 objects. We adopt the Taylor-orthogonal basis… (More)

- Jose M. Tamayo, Alexander Heldring, Juan M. Rius
- 2009 International Conference on Electromagnetics…
- 2009

The Multilevel Adaptive Cross Approximation (MLACA), an algorithm to solve MoM electromagnetic problems with computational cost O(N<sup>2</sup>) and a storage scaling with O(NlogN), is presented here and for the first time applied to a whole electromagnetic problem and not only to the interaction between blocks whose containing spheres do not intersect each… (More)

—Hypersingular 4-D 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 singularity cancellation methods, usually employed for the regularization of the singular integral kernel, by utilizing a series of coordinate… (More)

- Alexander Heldring, Juan M. Rius, José Maria Tamayo, Josep Parrón
- IEEE Transactions on Computer-Aided Design of…
- 2008

A novel algorithm, the compressed block decomposition, is presented for highly accelerated direct (noniterative) method-of-moment capacitance extraction. The algorithm is based on a blockwise subdivision of the method-of-moment potential coefficient matrix. Matrix subblocks corresponding to distant subregions of the problem geometry are not calculated… (More)

- Alex Heldring, Jose Maria Tamayo, Juan Manuel Rius
- 2010 URSI International Symposium on…
- 2010

The 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 CFIE is often much more efficient because it yields a well conditioned impedance matrix. This is particularly important when an iterative… (More)

- Alexander Heldring, José Maria Tamayo, Eduard Ubeda, Juan M. Rius
- Proceedings of the IEEE
- 2013

- Alberto Padilla, Jordi Mateu, Carlos Collado, Christoph Ernse, Juan M. Rius, Jose M. Tamayo
- 2010

- A. G. Polimeridis, J. M. Tamayo, J. R. Mosig
- 2011 International Conference on Electromagnetics…
- 2011

The direct evaluation program tailored to the singular integrals arising in the first-kind and second-kind Fredholm surface integral equation formulations is presented. The exponential convergence of the proposed technique can safely guarantee the inherited asymptotic accuracy of Galerkin discretization schemes. In this contribution, we highlight the… (More)

- E. Ubeda, J. M. Tamayo, J. M. Rius
- 2009 Computational Electromagnetics International…
- 2009

We present the self-loop basis functions, an edgeoriented divergence-conforming set with zero charge density. These basis functions allow a rearrangement of the linear-linear basis functions set to overcome the low-frequency breakdown of the electric-field integral equation.