![]() ![]() Visualized as a cubic, the electric field components form the edges of the cube, and the magnetic field components form the normals to the faces of the cube.Ī three-dimensional space lattice consists of a multiplicity of such Yee cells. ![]() Illustration of a standard Cartesian Yee cell used for FDTD, about which electric and magnetic field vector components are distributed. The resulting equations are solved in either software or hardware in a manner: the in a volume of space are solved at a given instant in time then the 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 (in form) are discretized using approximations to the space and time. Since it is a method, FDTD solutions can cover a wide range with a single run, and treat nonlinear material properties in a natural way.The FDTD method belongs in the general class of -based differential numerical modeling methods. Finite-difference time-domain or Yee's method (named after the Chinese American applied mathematician, born 1934) is a technique used for modeling (finding approximate solutions to the associated system of ).
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