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Multiband Antenna Q Optimization using Stored Energy Expressions

Cismasu, Marius LU and Gustafsson, Mats LU (2014) In IEEE Antennas and Wireless Propagation Letters 13. p.646-649
Abstract
A method to compute antenna Q from a single frequency current distribution is applied to the optimization of multiband radiating structures. A genetic algorithm produces suboptimal structures in the sense of simultaneous multiband minimum Q. These structures model in a simplified manner common wireless communication devices. The comparison with the physical bounds for the considered situations shows that the suboptimal structures perform close to their limitations. Matching networks are designed using real component models with a commercial tool. These networks have less than three components and provide less than -6.5dB reflection coefficient magnitude in all considered bands. The results show that the single frequency Q estimation method... (More)
A method to compute antenna Q from a single frequency current distribution is applied to the optimization of multiband radiating structures. A genetic algorithm produces suboptimal structures in the sense of simultaneous multiband minimum Q. These structures model in a simplified manner common wireless communication devices. The comparison with the physical bounds for the considered situations shows that the suboptimal structures perform close to their limitations. Matching networks are designed using real component models with a commercial tool. These networks have less than three components and provide less than -6.5dB reflection coefficient magnitude in all considered bands. The results show that the single frequency Q estimation method may be useful for antenna design (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Antennas and Wireless Propagation Letters
volume
13
pages
646 - 649
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000335456400005
  • scopus:84899572125
ISSN
1548-5757
DOI
10.1109/LAWP.2014.2313656
language
English
LU publication?
yes
id
d17aeb2c-a724-4da8-bd97-3523d3eb89e3 (old id 4387639)
date added to LUP
2014-04-01 14:20:14
date last changed
2017-11-12 03:14:04
@article{d17aeb2c-a724-4da8-bd97-3523d3eb89e3,
  abstract     = {A method to compute antenna Q from a single frequency current distribution is applied to the optimization of multiband radiating structures. A genetic algorithm produces suboptimal structures in the sense of simultaneous multiband minimum Q. These structures model in a simplified manner common wireless communication devices. The comparison with the physical bounds for the considered situations shows that the suboptimal structures perform close to their limitations. Matching networks are designed using real component models with a commercial tool. These networks have less than three components and provide less than -6.5dB reflection coefficient magnitude in all considered bands. The results show that the single frequency Q estimation method may be useful for antenna design},
  author       = {Cismasu, Marius and Gustafsson, Mats},
  issn         = {1548-5757},
  language     = {eng},
  pages        = {646--649},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Antennas and Wireless Propagation Letters},
  title        = {Multiband Antenna Q Optimization using Stored Energy Expressions},
  url          = {http://dx.doi.org/10.1109/LAWP.2014.2313656},
  volume       = {13},
  year         = {2014},
}