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Generation of 3-D finite-difference time-domain macromodels for faster simulation

✍ Scribed by Dmitry A. Gorodetsky; Philip A. Wilsey

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 312 KB
Volume: 17
Category: Article
ISSN: 1096-4290
DOI: 10.1002/mmce.20227

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✦ Synopsis

Computing time in finite-difference time-domain can be saved by expressing a portion of the grid (macromodel) as an linear time invariant (LTI) system. The output then becomes a convolution of the input with the LTI impulse response. To achieve a constant time for the convolution, the macromodel's response is expressed as a superposition of eigenmodal frequencies. That time is reduced by discarding nonessential eigenmodes. V

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