• DocumentCode
    1974435
  • Title

    Frequency Tuning of TRAPATT Oscillators Using Ferrimagnetic Resonators

  • Author

    Longley, S.R. ; Booth, P.L.

  • Author_Institution
    Philips Research Laboratories, Redhill, Surrey RH1 5HA, UK.
  • fYear
    1978
  • fDate
    4-8 Sept. 1978
  • Firstpage
    790
  • Lastpage
    794
  • Abstract
    The fundamental frequency of a pulsed TRAPATT S-band oscillator on an alumina MIC has been tuned electronically by changing individually the loading of the second and third harmonic terminations. This was realised with modified YIG polycrystalline spheres, (to overcome limiting), semi-loop coupled in shunt with an Evans type, TDT, TRAPATT circuit via an open circuited quarter wave transmission line at the harmonic frequency. Pulsed output powers of 40 W with harmonic tuning of the fundamental frequency in excess of 125 MHz (5%) with a power variation of ±0.2 dB have been measured.
  • Keywords
    Coupling circuits; Distributed parameter circuits; Electron traps; Ferrimagnetic materials; Microwave integrated circuits; Oscillators; Power transmission lines; Pulse measurements; Resonant frequency; Tuning;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1978. 8th European
  • Conference_Location
    Paris, France
  • Type

    conf

  • DOI
    10.1109/EUMA.1978.332637
  • Filename
    4131303
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1974435