Slow-wave structure with varying pitch for a travelling-wave tube, and travelling-wave tube using such a slow-wave structure

摘要

the invention relates to a variable delay line for traveling wave tube.;the cell (10) is constructed in sections (11) of the waveguide in which the propagation of the electromagnetic wave is set in the operation of the tube.all of the cells are formed of the same material, ceiling (1), a ring (3), (4) a ring rod material, courst circuit (2).the variable is obtained by expansion or contraction of the symbols within the portion of the guide.a significant improvement in the performance of the tube is obtained by the use of the three parties are not different, succedant along the beam path.the second and the third is no less than a was higher than that of the first.;application to the production of high levels of power, large bandwidth, centimetre wave.