E
Erkki Salonen
Researcher at University of Oulu
Publications - 110
Citations - 1810
Erkki Salonen is an academic researcher from University of Oulu. The author has contributed to research in topics: Antenna (radio) & Dipole antenna. The author has an hindex of 23, co-authored 110 publications receiving 1687 citations. Previous affiliations of Erkki Salonen include Aalto University & Helsinki University of Technology.
Papers
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Journal ArticleDOI
Active extragalactic sources - Nearly simultaneous observations from 20 centimeters to 1400 A
Robert Landau,Bill Golisch,Terry J. Jones,Thomas W Jones,J. A. Pedelty,Lawrence Rudnick,Michael L. Sitko,Jeff Kenney,Tom Roellig,Erkki Salonen,Seppo Urpo,Gary D. Schmidt,G. Neugebauer,Keith Matthews,J. H. Elias,Chris Impey,P. E. Clegg,S. Harris +17 more
TL;DR: In this paper, the overall spectra of the compact active sources are shown to be well represented by continuous-curvature functions such as parabolas, and the spectra are consistent with models involving continuous particle injection (with synchrotron losses) or first-order Fermi acceleration (with escape and synchoretron losses), but not with models using relativistic Maxwellian electron distributions.
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New prediction method of cloud attenuation
Erkki Salonen,S. Uppala +1 more
TL;DR: In this article, a new method for cloud attenuation calculation on an earth-satellite link is presented, which uses temperature and humidity profiles as input parameters, and has been applied to radiosonde measurements and to the gridded data of the numerical analyses of ECMWF.
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Wearable Circularly Polarized Antenna for Personal Satellite Communication and Navigation
TL;DR: Study of possibilities to construct a flexible, lightweight and mechanically robust textile antenna for dual-band satellite use: Iridium and GPS and the developed antenna solution allows integration into clothing.
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Improved models for long-term prediction of tropospheric scintillation on slant paths
TL;DR: In this article, the authors compared the prediction models for tropospheric scintillation on Earth-satellite paths from Karasawa, Yamada, and Allnutt (1988) and the ITU-R with measurement results from satellite links in Europe, the United States, and Japan at frequencies from 7 to 30 GHz and elevation angles of 3 to 33/spl deg.
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A Frequency Tuning Method for a Planar Inverted-F Antenna
TL;DR: In this paper, a tuning circuit, comprising an RF switch and discrete passive components, has been completely integrated into the antenna element, which is thus free of dc wires, and the proposed tuning method has been demonstrated with a dual-band PIFA capable of operating in four frequency bands.