Title :
An explicit and unconditionally stable FDTD method for the analysis of general 3-D lossy problems
Author :
Gaffar, Md ; Dan Jiao
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
The root cause of the instability is quantitatively identified for an explicit FDTD-based analysis of general lossy problems where both dielectrics and conductors can be lossy and inhomogeneous. Based on the root cause analysis, an efficient algorithm is developed to achieve unconditional stability in an explicit FDTD-based solution of general lossy problems. Numerical experiments have demonstrated its superior performance.
Keywords :
Maxwell equations; conductors (electric); dielectric losses; electromagnetic wave propagation; finite difference time-domain analysis; 3D lossy problem analysis; FDTD method; finite difference time domain method; lossy conductor; lossy dielectric; root cause analysis; unconditional stability; Educational institutions; Filtering; Finite difference methods; Nonhomogeneous media; Time-domain analysis; Explicit methods; finite difference time domain method; lossy problems; unconditionally stable methods;
Conference_Titel :
Microwave Symposium (IMS), 2014 IEEE MTT-S International
Conference_Location :
Tampa, FL
DOI :
10.1109/MWSYM.2014.6848527
