RT Journal Article T1 Comparison of surface integral equations for left-handed materials A1 Gómez Araújo, Marta A1 Taboada Varela, Jose Manuel A1 Rivero Campos, Javier A1 Obelleiro Basteiro, Fernando K1 1201 Álgebra AB A wide analysis of left-handed material (LHM) spheres with di®erent constitutive parameters has been carried out employ- ing di®erent integral-equation formulations based on the Method of Moments. The study is focused on the accuracy assessment of for- mulations combining normal equations (combined normal formula- tion, CNF), tangential equations (combined tangential formulation, CTF, and Poggio-Miller-Chang-Harrington-Wu-Tsai formulation, PM- CHWT) and both of them (electric and magnetic current combined ¯eld integral equation, JMCFIE) when dealing with LHM's. Relevant and informative features as the condition number, the eigenvalues dis- tribution and the iterative response are analyzed. The obtained results show up the suitability of the JMCFIE for this kind of analysis in con- trast with the unreliable behavior of the other approaches. PB Progress In Electromagnetics Research SN 15598985 YR 2011 FD 2011-07-11 LK http://hdl.handle.net/11093/5245 UL http://hdl.handle.net/11093/5245 LA eng NO Progress In Electromagnetics Research, 118, 425-440 (2011) NO Ministerio de Ciencia e Innovación | Ref. TEC2008-06714-C02-01 DS Investigo RD 14-sep-2024