Title :
Macroscopic electromagnetic properties of bi-anisotropic mixtures
Author :
Sihvola, Ari Henrik ; Juntunen, Juha O. ; Erätuuli, Pauliina
Author_Institution :
Electromagn. Lab., Helsinki Univ., Finland
fDate :
6/1/1996 12:00:00 AM
Abstract :
This paper focuses on the effective properties of bi-anisotropic mixtures. The effective material parameters of mixtures are derived which consist of spherical, arbitrarily bianisotropic inclusions in an isotropic host medium. The parameters of the inclusions can have the full range of 36 components of a general linear electromagnetic medium. Six-vector notation is used to derive the results, but the final expressions are also presented in a form of separate dyadic components. The inclusions are allowed to have an arbitrary orientation distribution. The special cases of aligned and random orientations are given special emphasis. Numerical examples are calculated for two mixtures where inclusions are made of either aligned chiral or omega spheres
Keywords :
chirality; electric fields; electric properties; electromagnetic wave polarisation; electromagnetic wave propagation; inclusions; magnetic fields; mixtures; aligned orientations; arbitrary orientation distribution; bianisotropic inclusions; bianisotropic mixtures; chiral spheres; dyadic components; electric field; general linear electromagnetic medium; isotropic host medium; macroscopic electromagnetic properties; magnetic field; material parameters; omega spheres; polarizability properties; random orientations; six-vector notation; spherical inclusions; Anisotropic magnetoresistance; Magnetic anisotropy; Magnetic fields; Magnetic flux; Magnetic flux density; Magnetic materials; Magnetic moments; Permittivity; Perpendicular magnetic anisotropy; Polarization;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
