A New Low-Impedance High Power Microwave Source

摘要

@@ We propose a new low-impedance high power microwave source based on the axial transit time effect, i.e. a low-impedance axial transit-time oscillator. The analysis and simulation are carried out to investigate the characteristics of this new configuration. In the numerical simulation, the microwave output peak power of 6 GW is obtained with an electron beam in the electron energy 580ke V and in the beam current 20kA. The diode impedance is 29 Ω. The power of the input electron beam is 11.6 G W. The beam-to-microwave power conversion efficiency is 51.7%. The frequency is 3.9 GHz by numerical simulation.