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In this paper, a high-power Ka-band traveling-wave tube (TWT) driven by a sheet electron beam is proposed and demonstrated by means of the simulation and experimental methods. The single grating rectangular waveguide with large width-to-height ratio is used as the slow-wave structure (SWS). An $E$ -plane bend energy coupler is put forward to feed this wide SWS. An irregular transition structure between...
This paper mainly introduces the study for 140 GHz folded waveguide (FWG) traveling wave tube (TWT) with big electron tunnel. Through the high frequency simulation software and 3-D particle in cell (PIC) simulation, we get the structural parameters. By using these parameters, we fabricate the whole vacuum electron device (VED), including the slow wave structure, magnetic focusing system, input and...
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