Design of 95 GHz, 100 kW gyrotron for Active Denial System application

•Complete design of 95 GHz, 100 kW gyrotron is performed for Active Denial System application.•The simulated results of interaction cavity by using PIC code are compared with the results of non-linear theory.•The overall efficiency of the device is found around 50%.

The design work of 95 GHz, 100 kW gyrotron for Active Denial System (ADS) application is reported in this manuscript. The mode selection is performed considering the various technical constraints. Particle-in-Cell code and indigenously developed code based on the generalized non-linear formalism are used in the beam–wave interaction computation and cavity design. Both the codes show good similarity in results. In addition, the design of electron beam source of 364 kW beam power, beam tunnel, depressed collector and RF window are also discussed. The design results confirm the RF power >100 kW with ≈50% tube efficiency.