Patent ID: 6812895
Filing Date: 2004-11-02
Classification: H01P,H01Q,H05H

Abstract:
A phase shifting plasma electromagnetic waveguide, comprising:a) an elongated non-conductive enclosure defining a propagation path therein for directional electromagnetic wave propagation, wherein a metal sleeve does not surround the enclosure: b) a composition contained within the enclosure capable of forming a plasma, said plasma when formed having a skin depth along a surface within the enclosure such that the electromagnetic waves penetrate the skin depth and are primarily propagated directionally along the path; c) an energy source for energizing the composition to form the plasma; d) an energy modifying medium to modify the density of the plasma such that electromagnetic waves of various speeds may be propagated directionally along the path; and e) a discontinuity in the waveguide such that said electromagnetic waves may be radiated.