Homogenization of corrugated interfaces in electromagnetics
Författare
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.
Publiceringsår
2004
Språk
Engelska
Publikation/Tidskrift/Serie
Technical Report LUTEDX/(TEAT-7122)/1-29/(2004)
Fulltext
Dokumenttyp
Rapport
Förlag
[Publisher information missing]
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7122
Forskningsgrupp
- Electromagnetic theory