Book Chapter10.1049/sbew550e_ch2
Finite-difference time-domain method
Stephen D. Gedney
- 26 Aug 2022
- pp 43-71
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TL;DR: In this article , the authors provide a review of the FDTD method and several significant advances of the method, including the convolutional perfectly matched layer (CPML) mesh truncation algorithm, subcell algorithms, and more.
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Abstract: The finite-difference time-domain (FDTD) method has been used to solve grand challenge problems in computational electromagnetics for the past five decades. This simple, yet, elegant method has O(N) computational efficiency and readily exploits modern computer architectures. The focus of this chapter is to provide a review of the FDTD method and several significant advances of the method, including the convolutional perfectly matched layer (CPML) mesh truncation algorithm, subcell algorithms, and more. Emphasis is given on the efficient implementation of the FDTD method on modern day multi-threaded and multi-processor computers, and the importance of establishing a common framework in the implementation. It is shown that several advanced concepts such as subcell algorithms can be reduced to effective local anisotropic materials and maintaining a highly efficient implementation.
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Citations
A perfect wideband plane wave injector for FDTD method
Christophe Guiffaut,K. Mahdjoubi +1 more
- 16 Jul 2000
TL;DR: In this paper, a new method is proposed for generating a plane wave without reflection due to numerical dispersion, where the dispersion due to the 1D grid of the plane injector is perfectly matched to that of the 3D FDTD grid.
40
On the applicability of discrete dipole approximation for plasmonic particles
Olli Vartia,Pasi Ylä-Oijala,Johannes Markkanen,Salla Puupponen,Ari Seppälä,Ari Sihvola,Tapio Ala-Nissila,Tapio Ala-Nissila +7 more
TL;DR: In this article, the authors investigated the accuracy of DDA for particles of different shapes, with silver as the plasmonic material, and found that for solid particles much smaller than the resonance wavelength, and for silver-silica core-shell particles in particular, DDA does not converge to the correct limit even for 106 dipoles.
23
Dosimetric evaluation of human head for portable telephones
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TL;DR: In this article, a discussion of the current situation and problems relating to dosimetry based mainly on the results of domestic and foreign research of in-head dosimometry for portable phones is presented.
14
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11
Application of hybrid finite-difference mode-matching method to analysis of structures loaded with axially symmetrical posts
Adam Kusiek,Jerzy Mazur +1 more
TL;DR: In this paper, a hybrid method is proposed to the analysis of waveguide structures with arbitrary configuration of axially symmetrical posts, which is based on a combination of finite difference frequency domain method, mode-matching technique, and an analytical iterative scattering procedure.
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