TETRAHEDRON FLOW BEAM GEOMETRY FOR MICROWAVE TUBES.

Abstract

The purpose of the program was to study and evaluate the tetrahedron beam geometry for application in microwave tubes. The advantages of a magnetic quadrupole focused klystron are all a result of the strong variation of the lateral beam dimensions. The magnetic beam defocusing and the high frequency lens effects, which are the result of phase focusing, are reduced to a low value and diverted into the lateral dimension, where the bunch definition is not required. The focusing in the other two dimensions, lateral magnetic focusing and longitudinal bunch focusing, becomes symmetrical, if the distance traveled by electrons per cycle equals the large transverse beam dimension. This well organized bunch formation becomes possible only with chromatic correction of the magnetic focusing by the use of curved gaps. The drift tube arrangement and the cavities for a three cavity klystron are shown. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1968
Accession Number
AD0838294

Entities

People

  • Oskar Heil

Tags

DTIC Thesaurus Topics

  • Electrical Equipment
  • Electron Tubes
  • Electronic Equipment
  • Electrons
  • Frequency
  • Frequency Bands
  • Geometry
  • Klystrons
  • Microwave Equipment
  • Microwave Tubes
  • Microwaves
  • Radio Frequency
  • Transverse

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Pulsed Power and Plasma Physics.
  • Structural Dynamics.

Technology Areas

  • Microelectronics