FDTD SOLUTIONS SOFTWARE
The resulting finite-difference equations are solved in either software or hardware in a leapfrog manner: the electric field vector components in a volume of space are solved at a given instant in time then the magnetic field vector components in the same spatial volume are solved at the next instant in time and the process is repeated over and over again until the desired transient or steady-state electromagnetic field behavior is fully evolved. The time-dependent Maxwell's equations (in partial differential form) are discretized using central-difference approximations to the space and time partial derivatives.
The FDTD method belongs in the general class of grid-based differential numerical modeling methods ( finite difference methods). Since it is a time-domain method, FDTD solutions can cover a wide frequency range with a single simulation run, and treat nonlinear material properties in a natural way. Yee, born 1934) is a numerical analysis technique used for modeling computational electrodynamics (finding approximate solutions to the associated system of differential equations). This scheme involves the placement of electric and magnetic fields on a staggered grid.įinite-difference time-domain ( FDTD) or Yee's method (named after the Chinese American applied mathematician Kane S.
In finite-difference time-domain method, "Yee lattice" is used to discretize Maxwell's equations in space.