All Cavity-Magnetron Axial Extraction Technique

Abstract

A compact axial pie-mode extraction scheme, which is based on a patent by Greenwood, is demonstrated in conjunction with the UM/L-3 relativistic magnetron using the particle-in-cell code ICEPIC. Cases utilizing Greenwood's extraction technique were compared with power extraction using traditional radial waveguides. Average extracted power values in all simulated axial cases were found to be within +/-6.5% of the radial cases. Cases utilizing 85 degree and 90 degree sector waveguides were found to have efficiencies up to ten percentage points higher than the radial case. The best performing case was found to use a set of three axially oriented 90 degree sector waveguides, shorted on the upstream side, with the short located 15 cm from the center of the magnetron apertures.

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Document Details

Document Type
Technical Report
Publication Date
Nov 11, 2012
Accession Number
ADA624912

Entities

People

  • Andrew D. Greenwood
  • Brad W. Hoff
  • Michael D. Haworth
  • Peter J. Mardahl

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Directed Energy Weapons
  • Electrical Engineering
  • Electromagnetic Scattering
  • Engineering
  • Extraction
  • Finite Element Analysis
  • High Power Microwaves
  • Magnetrons
  • Microwaves
  • Military Research
  • Nuclear Engineering
  • Universities
  • Virtual Prototyping
  • Waveguides

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Microwave Engineering.
  • Pulsed Power and Plasma Physics.