On physical limitations for broadband electromagnetic scattering --- high order spherical waves
Author
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.
Publishing year
2011
Language
English
Pages
619-622
Publication/Series
[Host publication title missing]
Document type
Conference paper
Publisher
The Pacific Institute for the Mathematical Sciences, Canada
Topic
- 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
Project
- EIT_HSWC:Antenna MIMO antennas and channels
Research group
- Electromagnetic theory