Title :
A new explicit and unconditionally stable FDTD method for analyzing general lossy problems
Author :
Md Gaffar;Dan Jiao
Author_Institution :
School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA
fDate :
7/1/2015 12:00:00 AM
Abstract :
In this paper, a new explicit and unconditionally stable finite-difference time-domain (FDTD) method is developed for analyzing general lossy problems. Both conductor loss and dielectric loss in inhomogeneous materials are considered. The root cause of instability is directly eradicated from the FDTD numerical system before performing explicit time marching. Numerical simulations have demonstrated the accuracy, efficiency, and unconditional stability of the new method.
Keywords :
"Time-domain analysis","Finite difference methods","Dielectric losses","Eigenvalues and eigenfunctions","Conductors","Accuracy","Numerical stability"
Conference_Titel :
Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2015 IEEE International Symposium on
DOI :
10.1109/APS.2015.7304559
