Simulation Research On Hybrid Dual-frequency High-power Microwave Devices

A high power microwave(HPM)refers to an electromagnetic wave having an output power exceeding 0.1 GW and a frequency of 1 to 300 GH.High-power microwave sources,as the core components,have been widely used in recent years because of their wide application in military,civilian,scientific research and other fields.A magnetically insulated linear oscillator(MILO)has attracted continuous attention as one of the world's highest single-pulse-energy HPM devices.Its biggest advantage is that due to its self-insulating mechanism using its own current,it does not require the addition of a focused magnetic field,making it compact,small size and light weight.It is suitable for miniaturization and practicality.It belongs to a high efficiency and excellent overall performance.Class sources;deficiencies are due to the fact that their current consumption accounts for about 2/3 of the load current for magnetic insulation,which reduces the beam-wave conversion efficiency of the device.This part of the magnetic insulation current does not participate in beam-wave interaction and is basically generated for high-frequency generation.No contribution.With further research,dual-band high-power microwave devices capable of producing stable output have become an emerging research direction,and will have important academic value and potential practical application value.Therefore,studies on dual-frequency MILO and MILO with dummy cathode load are also exploring ways to improve their performance from different perspectives.In order to improve the work performance of HPM devices,this paper presents a MILO magnetic isolation current-driven separation cavity based on the comprehensive analysis of the MILO and the characteristics of the split cavity oscillator(SCO)An oscillator(SCO)replaces the collector to form a dual-band hybrid HPM device with higher output performance.Particle simulation results show that the L-band MILO-SCO hybrid HPM devices can operate at 1.54 GHz and 0.74 GHz dual frequencies,with conversion efficiencies in excess of 20%.The results show that:L-band MILO-SCO hybrid HPM devices to achieve the design purpose.On the basis of this,we explored and researched the high-power microwave devices instead of collectors.Combined with the characteristics of Vircator,we designed a dual-frequency hybrid HPM device with multi-gap virtual cathode oscillator as the load,Through theoretical analysis,particle simulation based on the whole electromagnetic particle simulation technology,take the preliminary research results.In this paper,the simulation research of hybrid dual-frequency high power microwave devices based on all-electromagnetic particle simulation technology is to explore ways to improve the working performance of high-power microwave devices and provide reference for the research and development of high-power microwave sources.