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Homogenization of corrugated interfaces in electromagnetics

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Author

Summary, in English

A surface with periodic corrugations of suffciently 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.

Publishing year

2004

Language

English

Publication/Series

Technical Report LUTEDX/(TEAT-7122)/1-29/(2004)

Document type

Report

Publisher

[Publisher information missing]

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Report number

TEAT-7122

Research group

  • Electromagnetic theory