Design of a 100-W V-band coupled-cavity traveling-wave tube

The V-band frequency range is a region of the millimeter-wave spectrum that has been developed for inter-satellite communications. A 100 W V-band coupled-cavity traveling-wave tube (CCTWT) is designed using High Frequency Structure Simulator (HFSS) and particle-in-cell (PIC) code in CST Particle Studio. Hot-test simulations show that the designed V-band CCTWT produces saturated output power over 100 W with a gain over 33 dB at the 58–62 GHz frequency range when the beam current is set to 100 mA and the beam voltage is tuned from 15.8 kV to 16.8 kV.