On physical limitations for broadband electromagnetic scattering --- high order spherical waves
Författare
Summary, in English
Limitations on the scattering matrix are derived for a
wide class of objects, restricting their broadband interaction
with electromagnetic vector spherical waves in terms
of their size, shape and static material properties. In particular,
it is seen that the order of the dominating term
for electrically small objects increases with the order of
the spherical wave. The results are applicable to many
areas concerned with electromagnetic waves interacting
with matter. For instance, they open up a new approach
to derive bounds on antenna performance. They can also
be generalized to acoustic and elastodynamic scattering.
Two intermediate results presented are a set of sum rules
for and the low-frequency asymptotic expansions of the
scattering and transition matrices of a general scatterer.
wide class of objects, restricting their broadband interaction
with electromagnetic vector spherical waves in terms
of their size, shape and static material properties. In particular,
it is seen that the order of the dominating term
for electrically small objects increases with the order of
the spherical wave. The results are applicable to many
areas concerned with electromagnetic waves interacting
with matter. For instance, they open up a new approach
to derive bounds on antenna performance. They can also
be generalized to acoustic and elastodynamic scattering.
Two intermediate results presented are a set of sum rules
for and the low-frequency asymptotic expansions of the
scattering and transition matrices of a general scatterer.
Publiceringsår
2011
Språk
Engelska
Sidor
619-622
Publikation/Tidskrift/Serie
[Host publication title missing]
Dokumenttyp
Konferensbidrag
Förlag
The Pacific Institute for the Mathematical Sciences, Canada
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Conference name
10th International Conference on Mathematical and Numerical Aspects of Waves
Conference date
2011-07-25 - 2011-07-29
Conference place
Vancouver, BC, Canada
Status
Published
Projekt
- EIT_HSWC:Antenna MIMO antennas and channels
Forskningsgrupp
- Electromagnetic theory