Patent ID: 6559742
Filing Date: 2003-05-06
Classification: H01P

Abstract:
A flexible waveguide comprising:a wall enclosing an elongated passage for transmission of an electromagnetic wave along the passage, the wall being constructed of a flexible material allowing for displacement of a first end of the passage relative to a second end of the passage; a succession of corrugations disposed along an interior surface of the wall facing said passage; wherein successive ones of said corrugations are spaced apart by a distance less than approximately 0.2 wavelength of the electromagnetic wave, each of the corrugations having a height greater than said distance but less than approximately 0.5 wavelength of the electromagnetic wave, and each corrugation of the succession of corrugations having a curved surface to inhibit loss of power from the electromagnetic wave; and wherein the wall has a generally rectangular cross section in a plane normal to a central axis of the waveguide, and a thickness of a rib of the corrugation is less than a width of a trough between adjacent ribs of the corrugation.