Title :
FDTD calculation of transient pulse propagation through a nonlinear magnetic sheet
Author :
Luebbers, R. ; Kumagai, Ken ; Adachi, Saburo ; Uno, Toru
Author_Institution :
Dept. of Electr. & Comput. Eng., Pennsylvania State Univ., University Park, PA, USA
fDate :
2/1/1993 12:00:00 AM
Abstract :
The application of the finite-difference-time-domain (FDTD) method to propagation through a highly conductive nonlinear magnetic material is described. The FDTD calculations will require changing the permeability of the material at each time step based on the value of the magnetic field at the previous time step. The effects of the high conductivity and magnetic material nonlinearity on the stability of the FDTD calculation is investigated. Stability requires reduction of the time-step size to well below the Courant limit. Accuracy is demonstrated by comparison with previously published results
Keywords :
electrical conductivity; electromagnetic pulse; finite difference time-domain analysis; magnetic permeability; stability; Courant limit; FDTD calculation; calculation stability; finite-difference-time-domain; highly conductive nonlinear magnetic material; magnetic field; permeability; time-step size; transient pulse propagation; Conducting materials; Conductivity; Finite difference methods; Geometry; Magnetic fields; Magnetic materials; Nonlinear magnetics; Sheet materials; Stability; Time domain analysis;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
