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HOMOGENIZATION OF CORRUGATED INTERFACES IN ELECTROMAGNETICS

By G. Kristensson

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Abstract:
A surface with periodic corrugations of sufficiently small periodicity is shown to be electromagnetically equivalent to an inhomogeneous transition region (slab). Explicit expressions for the inhomogeneous transition region are found for one-dimensional corrugations and for two-dimensional corrugations a local elliptic problem has to be solved in order to find the equivalent electromagnetic properties. The homogenized surface can be characterized by its surface impedance dyadic or its reflection dyadic. A few numerical examples illustrate the theory.

Citation: (See works that cites this article)
G. Kristensson, "Homogenization of Corrugated Interfaces in Electromagnetics," Progress In Electromagnetics Research, Vol. 55, 1-31, 2005.
doi:10.2528/PIER05020302
http://www.jpier.org/PIER/pier.php?paper=0502032

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