0.65 THz Sheet Beam Traveling-wave Tube Based upon Truncated Sine Waveguide

A 0.65 THz traveling-wave tube was designed based upon truncated sine waveguide slow-wave structure. The high frequency characteristics and transmission characteristics are analyzed and calculated by Ansoft High frequency simulation software. We have also studied and simulated the beam-wave interaction of this truncated sine waveguide traveling-wave tube. The results show that the peak output power is 270 mW from 640 GHz to 660 GHz with synchronous voltage of 18.9 kV, operation current of 11 mA and input power of 1.25 mW.