Time‐domain simulation of electromagnetic wave propagation in saturating ferromagnetic materials | Zendy

Paul J. | Zendy; Christopoulos C. | Zendy; Thomas D. W. P. | Zendy

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Time‐domain simulation of electromagnetic wave propagation in saturating ferromagnetic materials

Author(s) -

Paul J.,

Christopoulos C.,

Thomas D. W. P.

Publication year - 2004

Publication title -

international journal of numerical modelling: electronic networks, devices and fields

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.249

H-Index - 30

eISSN - 1099-1204

pISSN - 0894-3370

DOI - 10.1002/jnm.539

Subject(s) - saturation (graph theory) , ferromagnetism , ferrite (magnet) , transmission coefficient , reflection coefficient , materials science , time domain , permeability (electromagnetism) , frequency domain , transmission line , electromagnetic radiation , computational physics , acoustics , transmission (telecommunications) , physics , condensed matter physics , optics , mathematical analysis , computer science , engineering , mathematics , electrical engineering , composite material , chemistry , biochemistry , combinatorics , membrane , computer vision

A method for the time‐domain simulation of electromagnetic wave propagation in ferromagnetic materials displaying frequency‐dependence and saturation is developed. The technique is based on incorporating into transmission‐line modelling (TLM) a non‐linear system to describe the frequency‐dependent permeability and saturation properties of a ferromagnetic material. The approach is validated for the linear (small‐signal) case by the calculation of the normal incidence reflection coefficient of a metal backed ferrite tile. Results are also shown for the non‐linear (large‐signal) case where the material is driven into saturation. Copyright © 2004 John Wiley & Sons, Ltd.

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