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Träfflista för sökning "WFRF:(Schafer T) ;lar1:(cth)"

Sökning: WFRF:(Schafer T) > Chalmers tekniska högskola

  • Resultat 1-3 av 3
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1.
  • Wei, Wei, et al. (författare)
  • New hat feed for reflector antennas realised without dielectrics for reducing manufacturing cost and improving reflection coefficient
  • 2011
  • Ingår i: IET Microwaves, Antennas and Propagation. - : Institution of Engineering and Technology (IET). - 1751-8725 .- 1751-8733. ; 5:7, s. 837-843
  • Tidskriftsartikel (refereegranskat)abstract
    • This study presents a new hat feed that is made entirely of metal without using dielectric material. Compared to previous hat feeds where a piece of dielectric is used to support the hat on the waveguide, the new feed has lower manufacturing cost and higher reliability. In addition, the new hat feed has low radiation along the feeding waveguide, which makes the vertex plate unnecessary. Therefore the bandwidth over which the reflection coefficient magnitude is below -15 dB has increased. The feed has been optimised using a genetic algorithm. A prototype has been manufactured, and measured results are presented to verify the numerical simulations.
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2.
  • Yang, Jian, 1960, et al. (författare)
  • A new metal-rod-supported hat antenna for potentially combining with the eleven antenna as a dual-band feed for reflectors
  • 2011
  • Ingår i: Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011. Rome, 11-15 April 2011. - 9788882020743 ; , s. 763-767
  • Konferensbidrag (refereegranskat)abstract
    • A new hat feed entirely made of metal without using dielectric material has been developed. Compared to the previous hat feeds, it has lower manufacture cost, higher reliability, and wider bandwidth of reflection coefficient. The feed has been optimized using Genetic Algorithm. A prototype has been manufactured, and measured results are presented to verify the numerical simulations. In addition, the new design opens up the possibility to combine the new hat antenna with the Eleven antenna for a dual-band feed.
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3.
  • Borsato, M., et al. (författare)
  • Unleashing the full power of LHCb to probe stealth new physics
  • 2022
  • Ingår i: Reports on Progress in Physics. - : IOP Publishing. - 0034-4885 .- 1361-6633. ; 85:2
  • Tidskriftsartikel (refereegranskat)abstract
    • In this paper, we describe the potential of the LHCb experiment to detect stealth physics. This refers to dynamics beyond the standard model that would elude searches that focus on energetic objects or precision measurements of known processes. Stealth signatures include long-lived particles and light resonances that are produced very rarely or together with overwhelming backgrounds. We will discuss why LHCb is equipped to discover this kind of physics at the Large Hadron Collider and provide examples of well-motivated theoretical models that can be probed with great detail at the experiment.
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  • Resultat 1-3 av 3

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