• DocumentCode
    1521665
  • Title

    Diffraction of millimetre waves in polycrystalline ferrite partially magnetised by standing ultrasonic wave

  • Author

    Brugidou, V. ; Rolland, P.A.

  • Author_Institution
    Dept. Hyperfrequences et Semicond., CNRS, Villeneuve D´´Ascq, France
  • Volume
    35
  • Issue
    8
  • fYear
    1999
  • fDate
    4/15/1999 12:00:00 AM
  • Firstpage
    643
  • Lastpage
    645
  • Abstract
    The authors predict and calculate the diffraction of millimetre waves by an elastic wave in partially magnetised magnetoelastic ferrites. This diffraction at 94 GHz in a nickel-zinc ceramic plate with a standing elastic wave is experimentally demonstrated. Based on this effect, acoustic deflectors can now be developed for beam steering antennas at millimetre frequencies
  • Keywords
    ceramics; elastic waves; electromagnetic wave diffraction; ferrites; magnetic millimetre wave devices; magnetoacoustic effects; magnetoelastic waves; nickel compounds; ultrasonic effects; zinc compounds; 94 GHz; NiZnFe2O4; acoustic deflector; beam steering antenna; elastic wave; millimetre wave diffraction; nickel-zinc ceramic plate; partially magnetised magnetoelastic polycrystalline ferrite; standing ultrasonic wave;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19990436
  • Filename
    771007