Design of Undepressed Collector for Ka-band Gyro-TWT Amplifier
Abstract
Mukesh Kumar Alaria and SK Ghosh
The design and analysis of an undepressed collector for Ka-band Gyro-TWT have been described in this paper. Initially, trajectory analysis has been carried out after preliminary design of the un-depressed collector. EGUN code and ANSYS software are used for trajectory and mechanical analysis respectively. Thermal design has also been carried out for finalization of collector geometry such as collector thickness, collector length and the estimations and optimizations of temperatures on the both inner and outer collector surfaces with the reasonable flow of coolant around the collector. The uniform electron beam spread of 300 mm has been achieved for wall loss of 0.43 kW/ cm2 for the collector diameter and length equal to 70 mm and 500 mm respectively. The maximum temperature has been obtained on the collector is 220oC.