Finite-difference time-___domain method: Difference between revisions

Revision as of 16:32, 26 March 2006

Revision as of 16:37, 26 March 2006

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'''Finite-Difference Time-Domain (FDTD)''' is a popular electromagneticcomputational electrodynamics modeling technique. It is considered easy to understand and easy to implement in software. Since it is a time-___domain techniquemethod, solutions can cover a wide frequency range with a single simulation run.

The FDTD method belongs in the general class of differential time-___domain numerical modeling methods. [[Maxwell's equations]] (in [[Partial difference equation|partial differential]] form) are modified to central-difference equations, discretized, and implemented in software. The equations are solved in a leapfrog manner: the electric field is solved at a given instant in time, then the magnetic field is solved at the next instant in time, and the process is repeated over and over again.