Analysis of Folded Waveguide TWT with Non-Central Double Beams

Abstract

In order to increase the output power of the folded waveguide (FW) Traveling wave tube (TWT), a novel Non-Central double beams (NCDB) FW-TWT is proposed in this paper. Compared with the traditional central beam (CB) FW-TWT, the NCDB-FW-TWT can double the output power without increasing the current of the single beam. A W-band NCDB-FW-TWT is designed in this paper. The PIC simulation results show that the maximal output power can reach 90 W and the 3-dB over 8.8%.