Title :
Anisotropic-medium PML for vector FETD with modified basis functions
Author :
Wang, Shumin ; Lee, Robert ; Teixeira, Fernando L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
A novel anisotropic-medium perfectly matched layer (PML) implementation is presented for boundary truncation in the three-dimensional vector finite-element time-domain (FETD) method. This approach utilizes a complex set of vector test and basis functions in the PML region, that recover the usual basis functions in the non-PML region. Numerical examples show that the proposed PML-FETD approach has small reflection errors and no observed late-time instabilities for simulations involving up to 106 time steps.
Keywords :
anisotropic media; electromagnetic wave absorption; finite element analysis; numerical stability; time-domain analysis; PML; anisotropic-medium; boundary truncation; modified basis function; numerical stability; perfectly matched layer; three-dimensional finite-element time-domain method; vector FETD; Anisotropic magnetoresistance; Bismuth; Finite difference methods; Finite element methods; Laboratories; Perfectly matched layers; Reflection; Stability; Testing; Time domain analysis; Basis functions; finite-element methods; numerical stability; perfectly matched layer; reflection coefficient;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.861523
