Title :
Representation of gyromagnetic composite media for FDTD modeling
Author :
Koledintseva, Marina Y. ; Drewniak, James L. ; Ye, Xiaoning
Author_Institution :
EMC Lab., Missouri Univ., Rolla, MO, USA
Abstract :
A composite media containing particles with a high internal field of magnetic anisotropy (hexagonal ferrites) useful for numerous EMC applications in a wide frequency band is considered. Effective constitutive parameters of a high-loss composite gyromagnetic media are represented in the Lorentzian form. It is convenient for the numerical analysis using the finite-difference time-domain (FDTD) algorithm with a recursive convolution procedure. The equations for the electric and magnetic field updating in such media are represented
Keywords :
composite materials; electric fields; electromagnetic compatibility; ferrites; finite difference time-domain analysis; gyromagnetic effect; magnetic anisotropy; magnetic fields; EMC; FDTD algorithm; Lorentzian form; composite media; electric field equations; finite-difference time-domain algorithm; hexagonal ferrites; high internal field; high-loss composite gyromagnetic media; magnetic anisotropy; magnetic field equations; microwave ferrite particles; numerical analysis; recursive convolution procedure; wide frequency band; Convolution; Electromagnetic compatibility; Equations; Ferrites; Finite difference methods; Frequency; Gyromagnetism; Magnetic anisotropy; Numerical analysis; Time domain analysis;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950703
