High Space Harmonic Perturbations in Travelling Wave Tubes,

Abstract

Stability properties of the free streaming mode in an electron beam propagating through a cylindrical waveguide loaded with a tape helix are investigated, including influence of high space harmonic perturbations. Closed algebraic dispersion relation of the free streaming mode are obtained. Properties of the high space harmonic perturbations are numerically investigated in connection with application on a high frequency microwave amplifier. One of the most important features in this analysis is that instability of high harmonic perturbations occurs at a very large value of microwave frequency. In this regard, millimeter microwave can be easily attainable by reducing the helix radius to a subcentimeter.

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Document Details

Document Type
Technical Report
Publication Date
Jan 07, 1983
Accession Number
ADA130204

Entities

People

  • Chung M. Kim
  • Han S. Uhm
  • Joon Y. Choe

Organizations

  • Naval Ordnance Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Dispersion Relations
  • Electrical Engineering
  • Electromagnetic Wave Propagation
  • Electron Beams
  • Electrons
  • Energy
  • Equations
  • Frequency
  • Linear Accelerators
  • Microwave Amplifiers
  • Microwave Frequency
  • Military Research
  • Numerical Analysis
  • Particle Physics
  • Physics
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Directed Energy
  • Microelectronics
  • Space