A priori estimates on the partial realized gain of ultra-wideband (UWB) antennas
Sohl, Christian LU and Gustafsson, Mats LU
(2008)
In Quarterly Journal of Mechanics and Applied Mathematics
61(3).
p.415-430
- Abstract
- A sum rule valid for a large class of linear and reciprocal antennas is presented in terms of the electric and magnetic polarizability dyadics. The identity is based on the holomorphic properties of the forward scattering dyadic and includes arbitrarily shaped antennas modelled by linear and time-translational invariant constitutive relations. In particular, a priori estimates on the partial realized gain are introduced, and lower bounds on the onset frequency are derived for two important archetypes of ultra-wideband antennas: those with a constant partial realized gain and those with a constant effective antenna aperture. The theoretical findings are illustrated by an equiangular spiral antenna, and comparison with numerical simulations... (More)
- A sum rule valid for a large class of linear and reciprocal antennas is presented in terms of the electric and magnetic polarizability dyadics. The identity is based on the holomorphic properties of the forward scattering dyadic and includes arbitrarily shaped antennas modelled by linear and time-translational invariant constitutive relations. In particular, a priori estimates on the partial realized gain are introduced, and lower bounds on the onset frequency are derived for two important archetypes of ultra-wideband antennas: those with a constant partial realized gain and those with a constant effective antenna aperture. The theoretical findings are illustrated by an equiangular spiral antenna, and comparison with numerical simulations show great potential for future applications in antenna design. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1054356
- author
- Sohl, Christian
LU
and Gustafsson, Mats
LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Quarterly Journal of Mechanics and Applied Mathematics
- volume
- 61
- issue
- 3
- pages
- 415 - 430
- publisher
- Oxford University Press
- external identifiers
-
- wos:000257964800007
- scopus:49149103230
- ISSN
- 0033-5614
- DOI
- 10.1093/qjmam/hbn008
- language
- English
- LU publication?
- yes
- id
- 33d1529b-78c3-4260-8d41-18adbbd6f2e5 (old id 1054356)
- date added to LUP
- 2016-04-04 09:39:25
- date last changed
- 2022-01-29 18:54:14
@article{33d1529b-78c3-4260-8d41-18adbbd6f2e5,
abstract = {{A sum rule valid for a large class of linear and reciprocal antennas is presented in terms of the electric and magnetic polarizability dyadics. The identity is based on the holomorphic properties of the forward scattering dyadic and includes arbitrarily shaped antennas modelled by linear and time-translational invariant constitutive relations. In particular, a priori estimates on the partial realized gain are introduced, and lower bounds on the onset frequency are derived for two important archetypes of ultra-wideband antennas: those with a constant partial realized gain and those with a constant effective antenna aperture. The theoretical findings are illustrated by an equiangular spiral antenna, and comparison with numerical simulations show great potential for future applications in antenna design.}},
author = {{Sohl, Christian and Gustafsson, Mats}},
issn = {{0033-5614}},
language = {{eng}},
number = {{3}},
pages = {{415--430}},
publisher = {{Oxford University Press}},
series = {{Quarterly Journal of Mechanics and Applied Mathematics}},
title = {{A priori estimates on the partial realized gain of ultra-wideband (UWB) antennas}},
url = {{http://dx.doi.org/10.1093/qjmam/hbn008}},
doi = {{10.1093/qjmam/hbn008}},
volume = {{61}},
year = {{2008}},
}