Design of the Radiation Cooled Packaging of the Helix TWT

Helix travelling wave tubes are most commonly used as power amplifier for satellite communication. The main objective of packaging of the helix TWT is to protect the integrated TWT from environmental loads. These environment loads are either mechanical vibrations or thermal loads. In this paper author has presented the design of the radiation-cooled packaging of the helix TWT for its space application. The key challenging aspects in the design of the base plate for packaging are axial & radial alignment of the tube, different size of the TWT sub components, high voltage potting at gun and collector side etc.