Dispersive effective material parameters for Maxwell's equations
Författare
Summary, in English
We study how effective material parameters can be defined for
Maxwell's equations when taking dispersion into account. The
reasoning is based on the concept of dispersion relations, and is
consequently primarily concerned with lossless media. We essentially
require that the effective material parameters should produce the
same dispersion relations as the heterogeneous problem, which
implies the effective material is primarily connected to the phase
velocity of the waves. Material parameters which exhibit temporal
dispersion only, can be defined if the propagation direction is
fixed.
Maxwell's equations when taking dispersion into account. The
reasoning is based on the concept of dispersion relations, and is
consequently primarily concerned with lossless media. We essentially
require that the effective material parameters should produce the
same dispersion relations as the heterogeneous problem, which
implies the effective material is primarily connected to the phase
velocity of the waves. Material parameters which exhibit temporal
dispersion only, can be defined if the propagation direction is
fixed.
Publiceringsår
2006
Språk
Engelska
Publikation/Tidskrift/Serie
Technical Report LUTEDX/(TEAT-7146)/1-14/(2006)
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Dokumenttyp
Rapport
Förlag
[Publisher information missing]
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7146
Forskningsgrupp
- Electromagnetic theory