uu.seUppsala University Publications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Topology Optimization of Planar Antennas for Wideband Near-Field Coupling
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
Show others and affiliations
2015 (English)In: IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, E-ISSN 1558-2221, Vol. 63, no 9, 4208-4213 p.Article in journal (Refereed) Published
Abstract [en]

We present an approach to design from scratch planar microwave antennas for the purpose of ultra-wideband (UWB) near-field sensing. Up to about 120 000 design variables associated with square grids on planar substrates are subject to design, and a numerical optimization algorithm decides, after around 200 iterations, for each edge in the grid whether it should consist of metal or a dielectric. The antenna layouts produced with this approach show UWB impedance matching properties and near-field coupling coefficients that are flat over a much wider frequency range than a standard UWB antenna. The properties of the optimized antennas are successfully cross-verified with a commercial software and, for one of the designs, also validated experimentally. We demonstrate that an antenna optimized in this way shows a high sensitivity when used for near-field detection of a phantom with dielectric properties representative of muscle tissue.

Place, publisher, year, edition, pages
2015. Vol. 63, no 9, 4208-4213 p.
Keyword [en]
Adjoint-field problem, directivity, microwave sensing, ultra-wideband (UWB) antennas, Vivaldi antenna
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:uu:diva-263444DOI: 10.1109/TAP.2015.2449894ISI: 000360803400050OAI: oai:DiVA.org:uu-263444DiVA: diva2:859308
Funder
Swedish Research Council, 621-2013-3706Swedish Foundation for Strategic Research , AM13-0029
Available from: 2015-10-06 Created: 2015-09-30 Last updated: 2017-12-01Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Authority records BETA

Augustine, Robin

Search in DiVA

By author/editor
Augustine, Robin
By organisation
Solid State Electronics
In the same journal
IEEE Transactions on Antennas and Propagation
Telecommunications

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 838 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf