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.
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