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Appendix C. The finite-difference time-domain (FDTD) method

Appendix C. The finite-difference time-domain (FDTD) method

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The simulations used in this work were all done using the finite-difference timedomain (FDTD) method. One of a fairly large number of methods and variations on methods applicable to the simulation of electromagnetic fields, the FDTD is particularly simple and intuitive, and its application is well adapted to computation of high-frequency electromagnetic fields. The FDTD method approximates the electromagnetic-field equations directly without the need for intermediate steps such as the approximation and minimization processes that are so important in many numerical computation methods such as the finite-element methods.

Chapter Contents:

  • C.1 The finite difference time domain equations
  • C.2 Boundary conditions
  • C.3 Near-to-far-field transformation
  • C.4 Modeling material interfaces
  • C.5 Inclusion of sources
  • Bibliography

Inspec keywords: electromagnetic fields; minimisation; approximation theory; finite difference time-domain analysis

Other keywords: numerical computation method; minimization; finite-difference time-domain method; FDTD method; high-frequency electromagnetic field simulation; finite-element method; approximation theory

Subjects: Interpolation and function approximation (numerical analysis); Electric and magnetic fields; Optimisation techniques; Steady-state electromagnetic fields; electromagnetic induction; Numerical approximation and analysis

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Appendix C. The finite-difference time-domain (FDTD) method, Page 1 of 2

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