An overview is presented of a novel implementation for the efficient analysis of metamaterial structures embedded in layered media. Based on a suitable mixed-potential integral-equation formulation, ad hoc acceleration procedures for the periodic potentials (expressed through slowly-convergent series when source and observation points lie in the same horizontal plane) have been developed. The approach consists of an asymptotic extraction of homogeneous-medium terms. Numerical results are shown, which prove the computational efficiency of this method and validate different types of propagation and radiation features occurring in metamaterial-like structures. The method is validated with commercial software and data from the literature. © 2011 IEEE.
An efficient numerical approach to the accurate analysis of propagation and radiation phenomena in metamaterial structures / G., Valerio; D. r., Jackson; D. r., Wilton; Galli, Alessandro. - ELETTRONICO. - (2011), pp. 1-4. (Intervento presentato al convegno 2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011 tenutosi a Istanbul nel 13 August 2011 through 20 August 2011) [10.1109/ursigass.2011.6050386].
An efficient numerical approach to the accurate analysis of propagation and radiation phenomena in metamaterial structures
GALLI, Alessandro
2011
Abstract
An overview is presented of a novel implementation for the efficient analysis of metamaterial structures embedded in layered media. Based on a suitable mixed-potential integral-equation formulation, ad hoc acceleration procedures for the periodic potentials (expressed through slowly-convergent series when source and observation points lie in the same horizontal plane) have been developed. The approach consists of an asymptotic extraction of homogeneous-medium terms. Numerical results are shown, which prove the computational efficiency of this method and validate different types of propagation and radiation features occurring in metamaterial-like structures. The method is validated with commercial software and data from the literature. © 2011 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
