Comparative study of the integral equation formulations when analyzing left-handed materials

Author

Araújo, M.G. ; Rivero, J. ; Taboada, J.M. ; Landesa, L. ; Obelleiro, F. ; García-Tuñon, I.

Author_Institution

E.T.S.E. Telecomun., Univ. de Vigo, Vigo, Spain

fYear

2011

fDate

11-15 April 2011

Firstpage

835

Lastpage

839

Abstract

A wide analysis of metamaterial spheres with different constitutive parameters has been carried out employing MoM-based SIE formulations. The study has been focused on the accuracy assessment of formulations combining normal equations (CNF), tangential equations (CTF and PMCHWT) and both of them (JMCFIE) when dealing with double negative materials. Relevant and informative features as the condition number, the eigenvalues distribution and the iterative response have been analyzed. The obtained results show up the suitability of the JMCFIE for this kind of analysis in contrast with the unreliable behavior of the other approaches.

Keywords

eigenvalues and eigenfunctions; metamaterials; method of moments; MoM-based SIE formulation; combining normal equations; double negative materials; eigenvalues distribution; integral equation formulation; left-handed materials; metamaterial spheres; tangential equations; Accuracy; Antennas; Convergence; Eigenvalues and eigenfunctions; Equations; Metamaterials;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5782566