Abstract: A traveling wave tube is coupled to an output waveguide by an output coupler. The output coupler includes a single integral hollow termination body having an inner surface and an outer surface. The slow-wave propagation structure of the traveling wave tube is joined to the inner surface of the hollow termination body such that the electron beam of the traveling wave tube passes through the interior of the single integral hollow termination body. The output waveguide contacts the outer surface of the opposite end of the single integral hollow termination body with an interference fit.

Abstract: A collector for collecting an electron beam in a traveling wave tube is disclosed. The collector includes at least one collector stage provided with two annularly arranged stage segments. The stage segments include overlapping end portions to prevent impingement of electrons of the electron beam against an isolator surrounding the collector stage. The stage segments facilitate the realization of transverse electric field distributions from one stage segment to the other stage segment within the collector by application of selected voltages to the stage segments.