Simulation of Non-Periodic Folded Waveguide Slow Wave Structure

This paper proposed a novel slow wave structure (SWS) named non -periodic folded waveguide (NPFW) SWS. The novel NPFW has the ability to suppress the backward wave oscillation and can achieve a high-gain one-stage traveling wave tube (TWT). A W-band NPFW-TWT was built and simulated in this paper to verify the performance of the novel NPFW-SWS. The simulation results show that the maximal output power and gain are 105W and 27.6dB in the designed one-stage NPFW-TWT.