INVESTIGATION OF NOISE GENERATION IN ELECTRICALLY TUNABLE MICROWAVE OSCILLATORS

Abstract

The self- and cross-spectra of the frequency modulation and beam current noise of two VA 161's and a QK 610 were measured. In both cases there are distinct indications of noise mechanisms peculiar to low frequencies present. The noise transformation properties of active beam transducers are compared with passive transducers for application in linear-beam microwave tubes. A nonlinear theory of traveling-wave tubes that includes both space and time harmonics is presented. A new series of noise measurements were made in a linear electron beam of moderate power. Since the particular gun used for this experiment is a shielded Pierce-type gun, emphasis is on the noise behavior of the beam near Brillouin flow conditions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1962
Accession Number
AD0284788

Entities

People

  • G.c. Dalman
  • L.a. Mackenzie
  • P.r. Mcisaac

Organizations

  • Cornell University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Electrical Equipment
  • Electron Beams
  • Frequency
  • Frequency Modulation
  • Microwave Oscillators
  • Microwave Tubes
  • Microwaves
  • Modulation
  • Oscillators
  • Transducers
  • Traveling Wave Tubes
  • Traveling Waves

Fields of Study

  • Physics

Readers

  • Electronics Engineering

Technology Areas

  • Directed Energy
  • Microelectronics
  • Space
  • Space - Hall-Effect Thruster