A Novel Cold Characteristics Simulation for Wide-Band Helix TWTs

In this paper, cold circuit parameters of helix SWS like dispersion and impedance characteristics have been carried out using HFSS and CST microwave studio by varying of helix SWS parameters for X-Ku-band helix TWT. Analysis of helix SWS for APBN, Alumina, Diamond and Bariliya materials of dielectric support rods has been carried out for achieving broad bandwidth, high gain, high efficiency and high linearity of a space helix TWT. The present analytical results were also validated simulation with a good agreement.