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The design of a V-band helix-folded waveguide (H-FWG) cascaded traveling wave tube (TWT) is presented. In this cascaded structure, a high-gain helix TWT is carefully designed as a first stage amplifier followed by a FWG TWT to obtain high power. Simulations predict that a peak power of 800W with saturated gain of 55 dB from 55GHz to 60 GHz can be achieved.
Recent advances of TWTCAD Integrated Framework, a 2D modeling and simulation code suite for traveling wave tube, will be presented. The use of the suite is more convenience, and the simulation result is more accurate. All modules of TWTCAD are improved. TWTCAD is applying and validating in microwave industry broadly.
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