Design, Simulation and Scale Model Cold Test of a Sever for the Los Alamos 94GHz TWT RF Structure

LANL has developed a new vane loaded waveguide RF structure for a sheet electron beam TWT. It is common for all high gain TWT amplifiers to require a circuit sever to prevent oscillations. We have developed a preliminary sever design in our vane loaded waveguide RF structure. A scale model of the RF structure was used at 10GHz to test several sever geometries. The structure and sever were simulated using HFSS