80 to 100 Watts TWT in Q-band for Space Downlink Communication

The first breadboard results for the development of a new TWT in Q-band with 80 to 100W of saturated power are presented. Two technologies for the delay have been tested at TWT level. They have successfully reached the targetted performances in terms of power, efficiency and oscillation margins. More than 100W of saturated power has been reached with both technologies in broadband operation covering the full band of 5 GHz allocated around 40 GHz. These results give strong confidence on the feasibility of this commercial product.