A low distortion 3 kW TWT for satellite communication ground stations

A 3 kW CW TWT has been developed for the 7.9-8.4 GHz frequency band. For this application, a prime requirement was that gain and phase ripple be held to an exceptionally low value. Specified gain was ± 0.25 dB/40 MHz and ± 0.5 dB/125 MHz in the linear region and ± 0.1 dB/40 MHz and ± 0.25 dB/125 MHz near saturation.