Accession Number:

AD0669804

Title:

AN EXPERIMENTAL STUDY OF SIMULATED PLASMA-COVERED SLOTS.

Descriptive Note:

Physical sciences research papers no. 355,

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

Report Date:

1968-03-01

Pagination or Media Count:

29.0

Abstract:

The effect of a lossless isotropic plasma on the admittance of a waveguide slot terminating in a ground plane has been studied by means of a plasma simulation technique. The relative dielectric constant between the plasma and freespace was maintained by using two contiguous real dielectric materials. Freespace was simulated by an alumina powder of high dielectric constant, and the plasma by a material of lower dielectric constant. The admittance of the slot radiator was measured by a a direct method, b Deschamps method, c a tuner method. All three gave similar results. Experimental values were determined for the normalized aperture admittance of a slot covered by a simulated plasma of thickness varying from asymptotically equal to 0.1 in. to infinity. The results showed good agreement with theory. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Plasma Physics and Magnetohydrodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE