Title :
Transient modeling of gyromagnetic materials with the TLM inter-cell network concept
Author :
Huilian Du ; So, Poman P. M. ; Hoefer, Wolfgang J. R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
We present a new approach to modeling gyromagnetic materials in TLM by using the inter-cell network concept. The anisotropic and dispersive properties of gyromagnetic materials are represented by lumped equivalent LC resonators and current-controlled voltage sources located at the boundaries of each TLM cell. This approach is robust, stable, and capable of modeling the general frequency dependent characteristics of gyromagnetic materials in time domain. This algorithm is verified by means of canonical examples and compared with results published in the literature.
Keywords :
equivalent circuits; gyromagnetic effect; magnetic anisotropy; magnetic materials; time-domain analysis; transmission line matrix methods; LC resonators; TLM method; anisotropic properties; current-controlled voltage sources; dispersive properties; equivalent circuit model; frequency dependent characteristics; gyromagnetic materials; inter-cell network concept; time domain modeling; Anisotropic magnetoresistance; Dispersion; Gyromagnetism; Magnetic anisotropy; Magnetic materials; Magnetic separation; Material properties; Perpendicular magnetic anisotropy; Phase change materials; Shunt (electrical);
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516591
