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  • 1.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    Altering the amplitude statistics inside a scattered field chamberManuskript (preprint) (Annet vitenskapelig)
  • 2.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    Antenna reflection coefficient measurements in a scattered field chamber2001Manuskript (preprint) (Annet vitenskapelig)
  • 3.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    Environment simulations for MEG measurements inside reverberation chamberManuskript (Annet vitenskapelig)
  • 4.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    Modelling of propagation environments inside a scattered field chamber2005Inngår i: IEEE 61st Vehicular technology conference, 2005. VTC 2005-Spring: Volume 1, 2005, s. 102-105Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Measurements on communication devices for evaluation of diversity and/or MIMO concepts must be made in the real environment or in a model of the real propagation environment. As a first step towards a complex, physical environment model the plane wave angular distribution, incident on the device under test (DUT), is altered in order to model plane wave angular distributions of real environments. Here a specialized reverberation chamber called the scattered field chamber (SFC) is used to create a source of Rayleigh faded plane waves and a shielded anechoic box with apertures is used to alter the angular distribution of the plane waves incident on the DUT. According to the measurements made, the model seems to be able to produce data that show agreement with measurements made on real propagation environments.

  • 5.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    Polarization control in an scattered field chamberManuskript (preprint) (Annet vitenskapelig)
  • 6.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    Propagation environment modeling using scattered field chamber2006Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis covers the development of the Reverberation Chamber as a measurement tool for cell phone tests in electronic production. It also covers the development of the Scattered Field Chamber as a measurement tool for simulations of real propagation environments.

    The first part is a more ”general knowledge about Reverberation Chambers”-part that covers some important phenomena like unstirred power and position dependence that might occour in a small Reverberation Chamber used for cell phone tests. Knowing how to deal with these phenomenas, give the possibility to use the chamber as a measurement tool for production tests even though it is too complex for a simple test of the antenna function.

    The second part shows how to alter some important propagation parameters inside the chamber to fit some real world propagation environments. The 3D plane wave distribution, the polarization and the amplitude statistics of the plane waves are all altered with simple techniques that are implementable all together. A small, shielded anechoic box with apertures is used to control 3D plane wave distribution and polarization. Antennas that introduce unstirred power in the chamber are used to control the statistics.

    Delarbeid
    1. Antenna reflection coefficient measurements in a scattered field chamber
    Åpne denne publikasjonen i ny fane eller vindu >>Antenna reflection coefficient measurements in a scattered field chamber
    2001 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3157 (URN)
    Merknad
    The 2001 Reverberation Chamber, Anechoic Chamber and OATS Users MeetingTilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
    2. Cell phone performance testing and propagation environment modelling in a reverberation chamber
    Åpne denne publikasjonen i ny fane eller vindu >>Cell phone performance testing and propagation environment modelling in a reverberation chamber
    2003 (engelsk)Inngår i: Proceedings of The 2003 Reverberation Chamber, Anechoic Chamber and OATS Users Meeting, 2003Konferansepaper, Publicerat paper (Fagfellevurdert)
    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3158 (URN)
    Konferanse
    The 2003 Reverberation Chamber, Anechoic Chamber and OATS Users Meeting, Austin, Texas
    Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
    3. On creating a nonisotropic propagation environment inside a scattered field chamber
    Åpne denne publikasjonen i ny fane eller vindu >>On creating a nonisotropic propagation environment inside a scattered field chamber
    2004 (engelsk)Inngår i: Microwave and optical technology letters (Print), ISSN 0895-2477, E-ISSN 1098-2760, Vol. 43, nr 3, s. 192-195Artikkel i tidsskrift (Fagfellevurdert) Published
    Abstract [en]

    A traditional reverberation chamber creates a statistically isotropic test environment. Tests of communication devices may demand different environments to be able to test, for example, the influence of a diversity antenna. Here, a simple way of altering the distribution of plane waves incident on the device under test is presented. © 2004 Wiley Periodicals, Inc.

    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3159 (URN)10.1002/mop.20417 (DOI)
    Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-12-14bibliografisk kontrollert
    4. Environment simulations for MEG measurements inside reverberation chamber
    Åpne denne publikasjonen i ny fane eller vindu >>Environment simulations for MEG measurements inside reverberation chamber
    (engelsk)Manuskript (Annet vitenskapelig)
    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3160 (URN)
    Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
    5. The influence of stirrer size and chamber load on the number of uncorrelated samples created in a reverberation chamber
    Åpne denne publikasjonen i ny fane eller vindu >>The influence of stirrer size and chamber load on the number of uncorrelated samples created in a reverberation chamber
    2005 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3161 (URN)
    Merknad
    Proceedings of EMC Zürich 2005Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
    6. Modelling of propagation environments inside a scattered field chamber
    Åpne denne publikasjonen i ny fane eller vindu >>Modelling of propagation environments inside a scattered field chamber
    2005 (engelsk)Inngår i: IEEE 61st Vehicular technology conference, 2005. VTC 2005-Spring: Volume 1, 2005, s. 102-105Konferansepaper, Publicerat paper (Fagfellevurdert)
    Abstract [en]

    Measurements on communication devices for evaluation of diversity and/or MIMO concepts must be made in the real environment or in a model of the real propagation environment. As a first step towards a complex, physical environment model the plane wave angular distribution, incident on the device under test (DUT), is altered in order to model plane wave angular distributions of real environments. Here a specialized reverberation chamber called the scattered field chamber (SFC) is used to create a source of Rayleigh faded plane waves and a shielded anechoic box with apertures is used to alter the angular distribution of the plane waves incident on the DUT. According to the measurements made, the model seems to be able to produce data that show agreement with measurements made on real propagation environments.

    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3162 (URN)10.1109/VETECS.2005.1543258 (DOI)0-7803-8887-9 (ISBN)
    Konferanse
    IEEE 61st Vehicular technology conference. VTC 2005-Spring, 30 May-1 June
    Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
    7. Polarization control in an scattered field chamber
    Åpne denne publikasjonen i ny fane eller vindu >>Polarization control in an scattered field chamber
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3163 (URN)
    Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
    8. Altering the amplitude statistics inside a scattered field chamber
    Åpne denne publikasjonen i ny fane eller vindu >>Altering the amplitude statistics inside a scattered field chamber
    (engelsk)Manuskript (preprint) (Annet vitenskapelig)
    HSV kategori
    Forskningsprogram
    Elektronik
    Identifikatorer
    urn:nbn:se:oru:diva-3164 (URN)
    Tilgjengelig fra: 2006-10-27 Laget: 2006-10-27 Sist oppdatert: 2017-10-18bibliografisk kontrollert
  • 7.
    Otterskog, Magnus
    Örebro universitet, Institutionen för teknik.
    The influence of stirrer size and chamber load on the number of uncorrelated samples created in a reverberation chamber2005Manuskript (preprint) (Annet vitenskapelig)
  • 8.
    Otterskog, Magnus
    et al.
    Örebro universitet, Institutionen för teknik.
    Madsén, Kent
    Cell phone performance testing and propagation environment modelling in a reverberation chamber2003Inngår i: Proceedings of The 2003 Reverberation Chamber, Anechoic Chamber and OATS Users Meeting, 2003Konferansepaper (Fagfellevurdert)
  • 9.
    Otterskog, Magnus
    et al.
    Örebro universitet, Institutionen för teknik.
    Madsén, Kent
    On creating a nonisotropic propagation environment inside a scattered field chamber2004Inngår i: Microwave and optical technology letters (Print), ISSN 0895-2477, E-ISSN 1098-2760, Vol. 43, nr 3, s. 192-195Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    A traditional reverberation chamber creates a statistically isotropic test environment. Tests of communication devices may demand different environments to be able to test, for example, the influence of a diversity antenna. Here, a simple way of altering the distribution of plane waves incident on the device under test is presented. © 2004 Wiley Periodicals, Inc.

1 - 9 of 9
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
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Utmatningsformat
  • html
  • text
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