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Lumped circuits coupled with electromagnetic Whitney element models

✍ Scribed by M. Feliziani; F. Maradei

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
98 KB
Volume
13
Category
Article
ISSN
0894-3370

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✦ Synopsis

The coupling between lumped electronic circuits and electromagnetic "elds is analysed in time domain by the "nite element method (FEM) using edge elements. The classical solution of the vector electric "eld wave equation by Whitney-elements is modi"ed to take into account the circuit elements. They are introduced in the FEM model by imposing that the current path of a circuit element coincides with an edge of the FEM mesh, so that the voltage drop across the lumped element coincides with the electric "eld circulation along the edge. In this way the imposition of the current}voltage characteristic of the lumped elements in the FEM equations is straightforward. The results obtained by the proposed method are compared with those obtained by Spice simulations.

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