• DocumentCode
    937499
  • Title

    Broadband Microwave Frequency Meter

  • Author

    Vartanian, P.H. ; Melchor, J.L.

  • Author_Institution
    Electronic Defense Laboratory of Sylvania Electric Products Inc. Mountain View, Calif.
  • Volume
    44
  • Issue
    2
  • fYear
    1956
  • Firstpage
    175
  • Lastpage
    178
  • Abstract
    An electronically tunable frequency meter is described for rapidly determining frequency over a wide range. The device depends on paramagnetic resonance in ¿, ¿-diphenyl ß-picryl hydrazyl. It consists of a two-inch section of coaxial transmission line filled with hydrazyl and placed in a longitudinal magnetic field. Frequencies from 600 mc through X band have been displayed on an oscilloscope by sweeping the magnetic field to 4 kilogauss. Two frequencies 8 mc apart at S band have been resolved and the accuracy for a single frequency is ± 1 mc. The complete system is described and performance in L and S bands discussed.
  • Keywords
    Absorption; Coaxial components; Magnetic fields; Magnetic materials; Magnetic resonance; Microwave frequencies; Paramagnetic materials; Paramagnetic resonance; Testing; Transmission lines;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IRE
  • Publisher
    ieee
  • ISSN
    0096-8390
  • Type

    jour

  • DOI
    10.1109/JRPROC.1956.274902
  • Filename
    4051989
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=937499