Homogenization of corrugated interfaces in electromagnetics
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.
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)
Full text
Document type
Report
Publisher
[Publisher information missing]
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7122
Research group
- Electromagnetic theory