Dispersion Characteristics of a Beam-Driven Cylindrical Waveguide with Dielectric Liner.

Abstract

The dispersion relation for a dielectric-lined, cylindrical waveguide filled with an electron beam is derived by using Maxwell's equations and the Lorentz force law. By using a no-beam approximation, the fundamental (TM01) mode is calculated with parameters resembling those expected in the Harry Diamond Laboratories Cerenkov device. Each of these parameters (waveguide size, dielectric thickness, and dielectric constant) is then varied to illustrate their effects on the dispersion curve. Higher TM0n modes (through TM06) are calculated to show how it is possible to couple to higher modes by using appropriate dielectric thicknesses. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1982
Accession Number
ADA116507

Entities

People

  • G. Daniel Dockery

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cerenkov Radiation
  • Classification
  • Dielectric Permittivity
  • Dispersion Relations
  • Dispersions
  • Electron Beams
  • Electron Density
  • Electrons
  • Frequency
  • Geometry
  • Magnetic Fields
  • Mathematics
  • Military Research
  • Radiation
  • Security
  • Thickness
  • Warfare

Fields of Study

  • Physics

Readers

  • Plasma Physics / Magnetohydrodynamics
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Microelectronics