Rational design of double-negative metamaterials consisting of 3D arrays of two different non-metallic spheres arranged on a simple tetragonal lattice

Author

Li, Yang ; Bowler, Nicola

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA

fYear

2011

fDate

3-8 July 2011

Firstpage

1494

Lastpage

1497

Abstract

Non-metallic, low-loss double-negative (DNG) metamaterials can be formed by three-dimensional (3D) arrays of two different non-metallic spheres arranged on a simple tetragonal lattice. Such DNG metamaterials have recently been found to provide DNG bandwidths of 10% through 3D arrays of two different dielectric spheres, and of 18% through 3D arrays of dielectric and magnetic spheres. However, a method of rational design of these DNG metamaterials has not yet been presented. This paper develops a design procedure based on the theoretical description of traveling waves supported by the 3D arrays. Analytical calculations of k-β (dispersion) diagram and effective constitutive parameters of several DNG metamaterials designed using this rule are presented.

Keywords

dielectric materials; magnetic materials; metamaterials; shapes (structures); 3D array; double-negative metamaterial; k-β diagram; nonmetallic dielectric sphere; nonmetallic magnetic sphere; rational design; tetragonal lattice; traveling wave; Bandwidth; Magnetic materials; Magnetic resonance; Metamaterials; Permeability; Permittivity; Three dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on

Conference_Location

Spokane, WA

ISSN

1522-3965

Print_ISBN

978-1-4244-9562-7

Type

conf

DOI

10.1109/APS.2011.5996578

Filename

5996578