A Q-band high efficiency 40W space traveling wave tube (TWT) is being developed for low earth orbit (LEO) satellite communication system. The dimension of the Q-band space TWT is 210mm × 40mm × 44mm ...

A X-band solid-state power amplifier (SSPA) for future payloads has been implemented using GaN Technology in this paper. The main performance of the GaN SSPA is superior to the GaAs SSPA. This paper ...