Title :
A field theoretical comparison of FDTD and TLM
Author :
Krumpholz, Michael ; Huber, Christian ; Russer, Peter
Author_Institution :
Ferdinand-Braun-Inst. fur Hochstfrequenztech., Berlin, Germany
fDate :
8/1/1995 12:00:00 AM
Abstract :
A field theoretical derivation of the three-dimensional TLM method with expanded node and of the three-dimensional TLM method with asymmetrical condensed node is given. In the derivation, the Method of Moments is applied to Maxwell´s equations. The wave amplitudes are related to the tangential field components at the boundaries of the TLM cell. The same approach is applied to derive the FDTD method from Maxwell´s equations. A complete dispersion analysis is given for the two TLM methods as well as for the FDTD method
Keywords :
Maxwell equations; dispersion relations; finite difference time-domain analysis; method of moments; transmission line matrix methods; FDTD; Maxwell equations; asymmetrical condensed node; dispersion analysis; expanded node; field theoretical comparison; method of moments; tangential field components; three-dimensional TLM method; wave amplitudes; Dispersion; Electromagnetic fields; Finite difference methods; Magnetic fields; Maxwell equations; Moment methods; Sampling methods; Time domain analysis; Transmission line matrix methods; Transmission line theory;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
