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Approximate methods to determine the isolation between antennas on vehicles
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0003-1465-3566
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.ORCID iD: 0000-0001-7269-5241
2016 (English)In: Antennas and Propagation (APSURSI), 2016 IEEE International Symposium on, IEEE conference proceedings, 2016, 131-132 p.Conference paper (Refereed)
Abstract [en]

The isolation between antennas needs to be considered when integrating antennas on vehicles, since poor isolation between antennas can cause interference between radio systems on-board. The electrical size of vehicles at gigahertz frequencies often limits the usage of full-wave methods. This paper therefore evaluates two efficient methods to approximate the antenna isolation; the non-singular transmission integral (NSTI) method and the geometric theory of diffraction (GTD). We present the first evaluation of NSTI for antennas outside line-of-sight (non-LOS). It is shown to provide a 6.5 dB RMS accuracy in the early non-LOS zone for an antenna position sweep on an aircraft at 2 GHz, and for frequency sweeps on a cube and cylinder, the latter only to 5 GHz. The GTD implementation gives a 4.4 dB RMS accuracy for cylinders and simplified aircraft models. Both investigated methods give remarkably accurate results, considering memory requirements and runtime, which makes them interesting for further investigations.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2016. 131-132 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-197332DOI: 10.1109/APS.2016.7695774ISI: 000388377100064ScopusID: 2-s2.0-84997170378OAI: oai:DiVA.org:kth-197332DiVA: diva2:1051801
Conference
2016 IEEE International Symposium on Antennas and Propagation (APSURSI)
Note

QC 20161219

Available from: 2016-12-03 Created: 2016-12-03 Last updated: 2017-02-21Bibliographically approved

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Malmström, JohanHenrik, FridJonsson, B.L.G.
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
Language
  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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