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Träfflista för sökning "WFRF:(Borjesson Per Ola) "

Sökning: WFRF:(Borjesson Per Ola)

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1.
  • Fertner, Antoni, et al. (författare)
  • Applications of Backscattering for the Study of Twisted Pair Transmission Lines
  • 2018
  • Ingår i: IEEE Transactions on Microwave Theory and Techniques. - 0018-9480. ; 66:12, s. 5230-5237
  • Tidskriftsartikel (refereegranskat)abstract
    • The phenomenon of backscattering in copper cables has been recently observed and initially explicated. It can provide promising techniques to address the problem of loop diagnostic and maintenance. The backscattering is analyzed both in frequency and time domains. To demonstrate the practical use of the phenomenon, we estimate certain properties of the loop using wideband, high-frequency $\selevenf(f)$ measurements performed in the laboratory on real cables. The results corroborate the usefulness and accuracy of the investigated method.
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2.
  • Fertner, Antoni, et al. (författare)
  • Backscattering in Twisted-Pair Nonhomogeneous Transmission Lines
  • 2018
  • Ingår i: IEEE Transactions on Microwave Theory and Techniques. - 0018-9480. ; 66:6, s. 2674-2682
  • Tidskriftsartikel (refereegranskat)abstract
    • The development of the communication networks tends gradually toward exploiting higher frequencies, sometimes even reaching the lowest microwave band (P-band). As the signal bandwidth used for transmission over twisted-pairs increases, as recommended by G.fast and other broadband systems, new phenomenon was observed, namely, backscattering. Motivated by the measurements of copper cables in frequency band up to 400 MHz, we propose a novel backscattering model. It may be productively applied to the problem of loop diagnostics. The methods to accurately and reliable determine the relevant transmission-line parameters are sine qua non condition to appropriately exploit the potential of short-to-medium range access lines. In this paper, a recursive formulation of the frequency-domain response of the backscattering is used for a space-time characterization. To confirm the practical use of the finding, we evaluate the properties of a loop using wideband, high-frequency S₁₁ measurements of the real cables. These laboratory results confirm the effectiveness and accuracy of the proposed method.
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  • Resultat 1-2 av 2
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refereegranskat (2)
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Berg, Miguel (2)
Ericson, Klas (2)
Cederholm, Daniel (2)
Magesacher, Thomas (2)
Medeiros, Eduardo (2)
Odling, Per (2)
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Lindqvist, Fredrik (2)
Fertner, Antoni (2)
Borjesson, Per Ola (2)
Huang, Yezi (2)
Almeida, Henrik (1)
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2018 (2)

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