Simulation of the Finite-Difference Time-Domain (FDTD) Method in 2-Dimensional Electromagnetic Wave Propagation in Absorption Media

Muh Fachrul Latief; Idawati Supu

doi:10.20527/flux.v19i3.11931

Simulation of the Finite-Difference Time-Domain (FDTD) Method in 2-Dimensional Electromagnetic Wave Propagation in Absorption Media

Muh Fachrul Latief, Idawati Supu

Abstract

This research reviewed Maxwell’s equations and Numerical Discretization using the Finite Difference Time Dependent (FDTD) method. First, Maxwell’s equations are introduced in a linear dielectric medium for 1-dimensional and 2-dimensional configurations, which are built based on the polarization between Transverse-Magnetic (TM) and Transverse-Electric (TE). Then, it presented the frequency-dependent absorption boundary conditions for the electromagnetic field equations used in that configuration. In addition, the correlation between the variation of the grid with respect to the x-axis and y-axis, as well as the variation of the dielectric constant of the medium on the propagation of electromagnetic waves, has been studied in this paper. A numerical result provides an excellent accuration and approximation in establishing boundary conditions for wave spacing in adsorbed media at 1-dimensional and 2-dimensional configurations

Keywords

Finite-Difference Time-Domain (FDTD) methods; Maxwell equations; transverse electric; transverse magnetic

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References

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DOI: http://dx.doi.org/10.20527/flux.v19i3.11931