Title :
Reduction of late time instabilities of the local-distorted nonorthogonal finite difference time domain method
Author :
Douvalis, V. ; Hao, Y. ; Parini, C.G.
Author_Institution :
Dept. of Electron. Eng., Univ. of London, UK
Abstract :
A time-subgriding scheme is used to reduce the late time instabilities of local-distorted nonorthogonal finite-difference time-domain (LNFDTD) method caused by the introduction of skew cells in the Cartesian coordinate system. Numerical simulation based on the proposed modification shows good agreement with theoretical predication.
Keywords :
electromagnetic fields; finite difference time-domain analysis; numerical stability; Cartesian coordinate system; electromagnetic structure modelling; finite difference time domain method; late time instabilities; local-distorted FDTD method; nonorthogonal FDTD method; skew cells; time-subgriding scheme; Cavity resonators; Electromagnetic modeling; Finite difference methods; Magnetic analysis; Magnetic fields; Numerical simulation; Numerical stability; Power system modeling; Space exploration; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1018290
