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Impact of current localization on the performance of compact MIMO antennas
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering. Department of Electrical and Information Technology, Lund University, Sweden .
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
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2011 (English)In: Proceedings of the 5th European Conference on Antennas and Propagation, 2011, 2423-2426 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we study the influence of current localization on the isolation between two antennas in a compact terminal setting. The two antennas are chosen to be a monopole and a PIFA. The degree of current localization is controlled by the permittivity value of the PIFA's dielectric loading. Both lossless and lossy cases are simulated in order to ascertain the underlying performance impact from current localization and its potential use in real implementation. Our results show that significant isolation enhancement is achieved with more localized currents. Moreover, the technique improves the terminal's diversity and capacity performance both at the center frequency and over a given bandwidth. In addition, PIFAs with dielectric loadings of higher permittivity values and more localized currents are physically smaller. Antenna prototypes are fabricated, and the measured results agree well with the simulated results.

Place, publisher, year, edition, pages
2011. 2423-2426 p.
Series
Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011
Keyword [en]
Capacity performance, Center frequency, Current localization, Dielectric loadings, Isolation enhancement, Localized current, Lossless, Measured results, MIMO antenna, Performance impact, Permittivity values, Simulated results, Permittivity, Monopole antennas
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-151200Scopus ID: 2-s2.0-79959639709ISBN: 9788882020743 (print)OAI: oai:DiVA.org:kth-151200DiVA: diva2:748462
Conference
5th European Conference on Antennas and Propagation, EUCAP 2011, 10 April 2011 through 15 April 2011, Rome
Note

RQC 20140919

Available from: 2014-09-19 Created: 2014-09-15 Last updated: 2014-09-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • 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
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  • asciidoc
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