RESEARCH ON DISTRIBUTED FERRITES FOR CROSSED-FIELD MICROWAVE DEVICES

Abstract

The objective of this program is to develop the knowledge and technology necessary to take full advantage of the unidirectional attenuative properties of ferrites in achieving improved gain and bandwidth in crossed-field microwave amplifiers and oscillators. During the third quarterly period, activities included cold testing of ferrite materials in conjunction with an L- band helix, and an investigation of narrow linewidth ferrites in an S-band Amplitron. Theoretical and Experimental studies have indicated that broadbanding of ferrites in a CFA can be accomplished by broader linewidths, porous ferrites, or by a combination of both methods. Measurements made on a porous magnesium ferrite support this conclusion. Bonding of ferrites to dielectric can be effected by the use of glass frit, and bonding to copper can be accomplished by sputtering nickel onto the ferrite in an argon atmosphere and subsequently brazing with silfos solder.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1967
Accession Number
AD0653638

Entities

People

  • Daniel Masse
  • John M. Osepchuk
  • Lawrence Tisdale
  • Robert Plumridge
  • William A. Smith

Organizations

  • RTX

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Amplifiers
  • Bandwidth
  • Ceramic Materials
  • Curie Temperature
  • Delay Lines
  • Frequency
  • Frequency Bands
  • Heat Transfer
  • L Band
  • Magnetic Fields
  • Magnetic Properties
  • Materials
  • Measurement
  • Metals
  • Microwave Amplifiers
  • Sputtering
  • Thermal Conductivity

Readers

  • Electronics Engineering
  • Microwave Engineering.
  • Surface Engineering/Surface Coating Technology.