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Physical bounds of antennas

Gustafsson, Mats LU ; Tayli, Doruk LU and Cismasu, Marius LU (2015) In Technical Report LUTEDX/(TEAT-7240)/1-38/(2015) TEAT-7240.
Abstract
Design of small antennas is challenging because fundamental physics limits the performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These limits offer antenna designers a-priori information about the feasibility of antenna designs and a figure of merit for different designs. Here, an overview of physical bounds on antennas and the development from circumscribing spheres to arbitrary shaped regions and embedded antennas are presented. The underlying assumptions for the methods based on circuit models, mode expansions, forward scattering, and current optimization are illustrated and their pros and cons are discussed. The physical bounds are compared with... (More)
Design of small antennas is challenging because fundamental physics limits the performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These limits offer antenna designers a-priori information about the feasibility of antenna designs and a figure of merit for different designs. Here, an overview of physical bounds on antennas and the development from circumscribing spheres to arbitrary shaped regions and embedded antennas are presented. The underlying assumptions for the methods based on circuit models, mode expansions, forward scattering, and current optimization are illustrated and their pros and cons are discussed. The physical bounds are compared with numerical data for several antennas. (Less)
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author
organization
publishing date
type
Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7240)/1-38/(2015)
volume
TEAT-7240
pages
38 pages
publisher
Electromagnetic Theory Department of Electrical and Information Technology Lund University Sweden
project
EIT_CACO-EMD Complex analysis and convex optimization for EM design
language
English
LU publication?
yes
id
2aef9c20-a22e-461f-b6a4-18064c67091f (old id 8411085)
date added to LUP
2015-12-21 10:17:08
date last changed
2016-06-28 14:41:14
@misc{2aef9c20-a22e-461f-b6a4-18064c67091f,
  abstract     = {Design of small antennas is challenging because fundamental physics limits the performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These limits offer antenna designers a-priori information about the feasibility of antenna designs and a figure of merit for different designs. Here, an overview of physical bounds on antennas and the development from circumscribing spheres to arbitrary shaped regions and embedded antennas are presented. The underlying assumptions for the methods based on circuit models, mode expansions, forward scattering, and current optimization are illustrated and their pros and cons are discussed. The physical bounds are compared with numerical data for several antennas.},
  author       = {Gustafsson, Mats and Tayli, Doruk and Cismasu, Marius},
  language     = {eng},
  pages        = {38},
  publisher    = {ARRAY(0xce96470)},
  series       = {Technical Report LUTEDX/(TEAT-7240)/1-38/(2015)},
  title        = {Physical bounds of antennas},
  volume       = {TEAT-7240},
  year         = {2015},
}