Title :
Time-derivative Lorentz material model-based absorbing boundary condition
Author :
Ziolkowski, Richard W.
Author_Institution :
Electromagnetics Lab., Arizona Univ., Tucson, AZ, USA
fDate :
10/1/1997 12:00:00 AM
Abstract :
A physically realizable electromagnetic absorber that is constructed from a time-derivative Lorentz material (TD-LM) model for the polarization and magnetization fields is used to define an absorbing boundary condition (ABC) for the finite-difference time-domain method. This Maxwellian ABC is shown to have performance characteristics that are comparable to the non-Maxwellian-Berenger (see J. Comput. Phys., vol.114, p.185-200, Oct. 1994) perfectly matched layer (PML) ABC
Keywords :
electromagnetic fields; electromagnetic wave absorption; electromagnetic wave polarisation; finite difference time-domain analysis; magnetisation; Maxwellian absorbing boundary condition; electromagnetic absorber; finite difference time domain method; magnetization fields; model based absorbing boundary condition; nonMaxwellian-Berenger perfectly matched layer; performance characteristics; polarization fields; time derivative Lorentz material; Boundary conditions; Electromagnetic fields; Electromagnetic modeling; Electromagnetic wave polarization; Finite difference methods; Frequency; Magnetic materials; Magnetization; Perfectly matched layers; Time domain analysis;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
