Bounds on metamaterials in scattering and antenna problems
Författare
Summary, in English
This paper reports on physical limitations on metamaterials in scattering and antenna problems. A dispersion relation for the extinction cross section is derived from the holomorphic properties of the forward scattering dyadic. The result states that for a given volume, there is only a limited amount of scattering
and absorption available in the entire frequency range. The dispersion relation is verified numerically for the perfectly conducting circular disk, and theoretical bounds are illustrated for a plasmonic stratified sphere.
and absorption available in the entire frequency range. The dispersion relation is verified numerically for the perfectly conducting circular disk, and theoretical bounds are illustrated for a plasmonic stratified sphere.
Publiceringsår
2007
Språk
Engelska
Sidor
1-4
Länkar
Dokumenttyp
Konferensbidrag
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
European Conference on Antennas and Propagation (EuCAP) 2007
Conference date
2007-11-11 - 2007-11-16
Conference place
Edinburgh, United Kingdom
Status
Published
Forskningsgrupp
- Electromagnetic theory