STUDY OF MICROWAVE GENERATION BY MEANS OF ELECTRON BEAM INTERACTION WITH ANISOTROPIC MEDIA.

Abstract

Results of experimental work on annular plasma columns are presented. The plasma density was determined by measuring the dipole resonance using a section of a stripline. Results of the stripline measurement were used to locate the passband of the backward surface wave. The theoretically predicted forward and backward surface waves were measured. Agreement between the theory and the experiment is excellent. Theoretical consideration is given to a possible spurious oscillation resulting from electron beam interaction with the plasma body wave and a criterion for the existence of backward wave in a plasma column. Experimental results are presented of the measurement of the conductivity of pyrolytic graphiteBN layered material. The real part of the effective conductivity measured for one sample was 0.006 mho/meter. This value of the conductivity represents a possible improvement of 100000 in the loss characteristics of microwave slow-wave circuits built with this material over the pyrolytic graphite structures previouly discussed.

Document Details

Document Type
Technical Report
Publication Date
Mar 31, 1964
Accession Number
AD0601158

Entities

People

  • R. J. Briggs
  • S. F. Paik

Organizations

  • RTX

Tags

DTIC Thesaurus Topics

  • Absorbers (Materials)
  • Advanced Materials
  • Agreements
  • Circuits
  • Conductivity
  • Demographic Cohorts
  • Electron Beams
  • Electrons
  • Engineered Materials
  • Graphitic Materials
  • Materials
  • Measurement
  • Microwaves
  • Slow Wave Circuits
  • Surface Waves
  • Waves

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Microwave Engineering.
  • Plasma Physics.

Technology Areas

  • Directed Energy
  • Microelectronics