Metadispersion for a cascade of planar periodic structures

Author

Martini, E. ; Sardi, G.M. ; Caminita, F. ; Maci, S.

Author_Institution

Dept. of Inf. Eng., Univ. of Siena, Rome, Italy

fYear

2011

fDate

11-15 April 2011

Firstpage

1215

Lastpage

1217

Abstract

This work proposes an innovative method for the characterization of dispersion in metamaterials consisting of stacks of planar periodic surfaces. The analysis procedure separates the artificial material into its constituent planes, performs a full wave analysis of the individual planar periodic structures and uses analytic formulas from Bloch theory to determine the dispersion characteristics of the overall artificial medium. Physical properties of the equivalent admittance matrix modeling the single planar sheets are exploited to analytically describe the dispersion properties of the metamaterial in the whole irreducible Brillouin zone starting from a limited number of full-wave simulations.

Keywords

Brillouin spectra; electric admittance; electromagnetic wave scattering; metamaterials; periodic structures; Bloch theory; Brillouin zone; artificial material; equivalent admittance matrix modeling; full wave simulation; metadispersion; metamaterial dispersion; planar periodic structures; single planar sheets; Admittance; Dispersion; Magnetic materials; Metamaterials; Periodic structures; Propagation constant; Transmission line matrix methods;

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

5781723