Title :
Analysis of the signs of imaginary parts of the effective constitutive parameters in metamaterials
Author :
Alavikia, Babak ; Ramahi, Omar M.
Author_Institution :
Electr. & Comput. Eng. Dept., Univ. of Waterloo, Waterloo, ON, Canada
Abstract :
The resonance and antiresonance behavior of the effective parameters in dielectric composites consisting of array of dielectric spheres are investigated. By comparing the analytical solution based on Mie theory and Clausius-Mossotti relation with the full-wave analysis based on finite element method, it is shown that the negativeness of the imaginary part of the effective permittivity and permeability is a consequence of the coupling interactions between the induced electric and magnetic dipoles.
Keywords :
dielectric materials; electromagnetic metamaterials; electromagnetic wave scattering; finite element analysis; magnetic moments; permeability; permittivity; Clausius-Mossotti relation; FEM; Mie theory; analytical solution; antiresonance behavior; coupling interactions; dielectric composites; dielectric spheres; effective permeability; effective permittivity; finite element method; full-wave analysis; imaginary parts; induced electric dipoles; induced magnetic dipoles; metamaterials; resonance behavior; Arrays; Dielectrics; Finite element analysis; Magnetic moments; Magnetic resonance imaging; Magnetic susceptibility; Permittivity;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711371
