Purpose - To devise a parametric study using a new application of the boundary element method (BEM) and to propose an efficient approach for speeding up the computation time of the BEM based on neural networks (NNs). Design/methodology/approach - A 3D finite elements formulation is combined with radial basis function NNs to speeding up the computation time. Findings - The paper shows how to estimate the role of thin slabs filled with unconventional media in order to increase the coupling values when placed between two metallic strips in a coupled microstrip line layout or to improve the shielding properties when used as absorber. Research limitations/implications - The numerical results here presented are not bianisotropic but can be easily extended to take into account bianisotropic media. Originality/value - The formulation is one of the only with the potential for investigating unconventional bianisotropic media like Chiral materials which are seen as one possible route to achieving double negative media.
Lauro, S., Bilotti, F., Toscano, A., Vegni, L., Lauro, S. (2008). BEM analysis of electromagentic components filled with unconventional materials RID B-1933-2009. COMPEL, 27(6), 1273-1285 [10.1108/03321640810905756].
BEM analysis of electromagentic components filled with unconventional materials RID B-1933-2009
TOSCANO, ALESSANDRO;
2008-01-01
Abstract
Purpose - To devise a parametric study using a new application of the boundary element method (BEM) and to propose an efficient approach for speeding up the computation time of the BEM based on neural networks (NNs). Design/methodology/approach - A 3D finite elements formulation is combined with radial basis function NNs to speeding up the computation time. Findings - The paper shows how to estimate the role of thin slabs filled with unconventional media in order to increase the coupling values when placed between two metallic strips in a coupled microstrip line layout or to improve the shielding properties when used as absorber. Research limitations/implications - The numerical results here presented are not bianisotropic but can be easily extended to take into account bianisotropic media. Originality/value - The formulation is one of the only with the potential for investigating unconventional bianisotropic media like Chiral materials which are seen as one possible route to achieving double negative media.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
