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EnglishThe marching-on-in-time (MOT) solution of the time domain electric field integral equation (TD-EFIE) has traditionally suffered from a number of problems, including: 1) instability; 2) spurious static contributions plaguing the solution; 3) low-frequency breakdown; and 4) dense discretization breakdown. The first issue can be resolved by employing proper space-time Galerkin discretization schemes and accurate quadrature methods. The second and the third issue have been resolved by the quasi-Helmholtz Projected TD-EFIE (qHP-TDEFIE). This contribution introduces a multiplicative preconditioner which can be applied to the qHP-TDEFIE, without further modifying the original scheme. This preconditioner is based on Calderon techniques and guarantees that the MOT system can be solved efficiently using iterative methods, not only for large time step sizes but also for dense spatial discretizations, and for both simply and multiply connected geometries.
A DC-Stable, Well-Balanced, Calderon Preconditioned Time Domain Electric Field Integral Equation / Beghein, Y.; Cools, K.; ANDRIULLI, FRANCESCO PAOLO. - In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION. - ISSN 0018-926X. - 63:12(2015), pp. 5650-5660. [10.1109/TAP.2015.2487500]
| Titolo: | A DC-Stable, Well-Balanced, Calderon Preconditioned Time Domain Electric Field Integral Equation | |
| Autori: | ||
| Data di pubblicazione: | 2015 | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/TAP.2015.2487500 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Andriulli-ADC.pdf | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2678963
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