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Frequency‐dependent envelope finite‐element time‐domain analysis of dispersion materials
Author(s) -
RodríguezEsquerre V. F.,
Koshiba Masanori,
HernándezFigueroa H. E.
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20533
Subject(s) - envelope (radar) , microwave , computation , convolution (computer science) , dispersion (optics) , frequency domain , finite element method , time domain , mathematical analysis , dispersion relation , physics , mathematics , optics , engineering , computer science , algorithm , telecommunications , structural engineering , quantum mechanics , radar , computer vision , machine learning , artificial neural network
An efficient frequency‐dependent finite‐element time‐domain method for the analysis of dispersive media is presented. The formulation, based on the 2 nd ‐order wave equation, includes a slowly‐varying envelope approximation (SVEA) and perfectly matched layers (PMLs), and the dispersion effects of the medium are incorporated by an accurate computation of the recursive evaluation of the convolution integral. Numerical examples in microwaves and optical frequencies are given to validate the proposed formulation. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 13–16, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20533