Investigations on 0.2-THz Traveling-Wave Tubes with Staggered Grating Slow-Wave Structure

摘要

0.2-THz traveling-wave tubes (TWT) with a grating slow-wave structure (SWS) are studied. The results of design and simulation of sheet-beam and multiple-beam electron-optical systems are reported. Electromagnetic parameters of SWSs are calculated. The results of small-signal and large-signal gain analysis are presented. According the simulations, for 0.l-A 20-kV sheet beam, peak small-signal gain and saturated power are about 39 dB and 80 W, respectively.