Abstract
The standard Yee grid, though simple and robust, is not well suited to modeling anisotropic media. In contrast, the Lebedev grid is well suited, but is computationally more expensive. A methodology is presented to use the classical Yee grid in isotropic regions and take advantage of the Lebedev method as a subgridded region for anisotropic materials only. Two methods to couple the two regions are proposed and described in detail. The proposed methods show low reflection in a scenario where a normally incident plane wave hits a Yee–Lebedev interface. Also, the two techniques are shown to be both accurate and stable.
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