The delay line for manufacturing process and the tube a propagation of waves comprising such a line

摘要

P the invention relates to a line of the helical type for a tube to the propagation of waves. / p & & p & the line 4 is carried by a frustoconical surface including flats 41, 42, 43 are parallel to the axis zz of the cone, at a distance from this axis which is equal to the small radius of the truncated cone, so that the bars 44, 45, 46 isolates the line 4 of the tube 48 which propagate the electrons have a rectangular longitudinal section. / p