Title :
Diagonal-preserving explicit and unconditionally stable FDTD method for analyzing general lossy electromagnetic problems
Author :
Gaffar, Md ; Dan Jiao
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
An explicit and unconditionally stable FDTD method is developed for analyzing general lossy electromagnetic problems, which preserves the diagonal property of the FDTD system in the projected space of the complex-valued stable modes. Numerical simulations of problems involving lossy and inhomogeneous dielectrics and conductors have demonstrated the accuracy, efficiency, and unconditional stability of the proposed method.
Keywords :
dielectric losses; finite difference time-domain analysis; complex valued stable modes; diagonal preserving explicit FDTD method; general lossy electromagnetic problems; inhomogeneous conductors; inhomogeneous dielectrics; lossy conductors; lossy dielectrics; unconditionally stable FDTD method; Accuracy; Eigenvalues and eigenfunctions; Finite difference methods; Nonhomogeneous media; Stability analysis; Time-domain analysis; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904414
