Title :
Extending the asymmetric Bruggeman effective medium theory to include scattering from small spherical inclusions
Author :
Merrill, W.M. ; Diaz, Rodolfo E. ; Alexopoulos, N.G.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A large number of theories have previously been developed to describe binary composite materials. One method which has included scattering is the theory of strong permittivity fluctuations (SPF). This paper presents an alternative method incorporating the effects of scattering into an effective permittivity description of a binary composite mixture of spherical inclusions in a continuous host medium. This alternative method utilizes the low volume fraction limit of the SPF theory in an iterative formulation analogous to that used to derive the asymmetric Bruggeman effective medium theory (EMT).
Keywords :
electromagnetic wave scattering; inhomogeneous media; iterative methods; permittivity; asymmetric Bruggeman effective medium theory; binary composite materials; effective permittivity; scattering; small spherical inclusions; strong permittivity fluctuations; Equations; Particle scattering; Permittivity; Propagation losses; Tiles;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1998. IEEE
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-4478-2
DOI :
10.1109/APS.1998.699082