Flexible waveguides with 45amp;deg; corrugations to allow bending and twisting of waveguides

摘要

A flexible waveguide (1) has corrugated seamless walls (2) the corrugations of which are inclined to the transverse planes of the waveguide, that is, planes perpendicular to the longitudinal axis of the waveguide, at an angle of substantially 45°. The inclined corrugations, which may be annular or helical, permit both flexing and twisting of the waveguide.