STUDY OF MICROWAVE GENERATION BY MEANS OF INTERACTION WITH AN ANISOTROPIC MEDIA.

Abstract

The preparation and microwave measurements of two new pyrographite-like materials is described. One is a composite of PG and BN (2%); the other is a boron-doped PG periodically modulated with a few percent peak of BN. The use of the silver dot technique was still found necessary in order to overcome the contact problem. This permits fairly good agreement of most measured data for the rectangular waveguide case with a theory described in this report. The results with pyrographite-like materials still indicate a possible use for these materials as microwave attenuators in tubes. The successful experiment with a periodically modulated material (BPG-BN) supports the belief that a periodically modulated material of BN and either W or ZrB2 can be fabricated. If this is true, then a low-loss anisotropic material will be the result. Two such composite layered materials are planned for preparation in the next quarter, one to be made by synthetic techniques and the other by true codeposition techniques. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1966
Accession Number
AD0488563

Entities

People

  • J. Osepchuk
  • Jamesina Simpson

Organizations

  • RTX

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Advanced Materials
  • Agreements
  • Attenuators
  • Composite Materials
  • Demographic Cohorts
  • Engineered Materials
  • Materials
  • Measurement
  • Metamaterial Absorbers
  • Metamaterials
  • Microwaves
  • Waveguides

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.
  • Surface Engineering/Surface Coating Technology.