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Physical Bounds of Antennas

Gustafsson, Mats LU ; Tayli, Doruk LU and Cismasu, Marius LU (2015) In Handbook of Antenna Technologies p.1-32
Abstract
Design of small antennas is challenging because fundamental physics limits the antennas performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These bounds offer antenna designers a priori information about the feasibility of antenna designs and a figure of merit for different antenna 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... (More)
Design of small antennas is challenging because fundamental physics limits the antennas performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These bounds offer antenna designers a priori information about the feasibility of antenna designs and a figure of merit for different antenna 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)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Physical bounds, Limitations, Stored energy, Q-factor, Small antennas, Circuit models, Mode expansions, Forward scattering, Sum rules, Convex optimization
in
Handbook of Antenna Technologies
editor
Chen, Zhi Ning
pages
1 - 32
publisher
Springer
ISBN
978-981-4560-75-7
DOI
10.1007/978-981-4560-75-7_18-1
project
EIT_CACO-EMD Complex analysis and convex optimization for EM design
language
English
LU publication?
yes
id
d208a618-4632-4c75-8395-943b9730e03b (old id 8408723)
date added to LUP
2015-12-17 10:49:05
date last changed
2016-06-28 14:41:14
@misc{d208a618-4632-4c75-8395-943b9730e03b,
  abstract     = {Design of small antennas is challenging because fundamental physics limits the antennas performance. Physical bounds provide basic restrictions on the antenna performance solely expressed in the available antenna design space. These bounds offer antenna designers a priori information about the feasibility of antenna designs and a figure of merit for different antenna 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},
  editor       = {Chen, Zhi Ning},
  isbn         = {978-981-4560-75-7},
  keyword      = {Physical bounds,Limitations,Stored energy,Q-factor,Small antennas,Circuit models,Mode expansions,Forward scattering,Sum rules,Convex optimization},
  language     = {eng},
  pages        = {1--32},
  publisher    = {ARRAY(0xb3f9e68)},
  series       = {Handbook of Antenna Technologies},
  title        = {Physical Bounds of Antennas},
  url          = {http://dx.doi.org/10.1007/978-981-4560-75-7_18-1},
  year         = {2015},
}