Design of a 0.13THz folded-waveguide TWTA

摘要

We present a preliminary design of a 0.13THz folded-waveguide (FW) traveling-wave-tube amplifier (TWTA). The beam-wave interaction is simulated using a 1-D large signal code, BWISFW-1D, which uses a three-port network representation of the unit cell of the slow wave structures. The simulated output power is in excess of 55W from 128-138GHz, and the maximum efficiency is 4%.