The Characteristics of the Second and Third Virtual Cathodes in an Axial Vircator for the Generation of High-Power Microwaves

A virtual cathode oscillator or vircator is a vacuum tube for producing high-power microwaves (HPM). The efficiency of the has been difficult task decades. main reasons low are intense relativistic electron beam (IREB) loss and few no interactions between IREB HPM. In this case, forming multiple cathodes may be beneficial in overcoming these constraints. By reusing axially propagating leaked electrons (LE), we could confine them form (VCs). This article discussed characteristics newly formed VCs based on simulation results. formation time new was discovered to highly dependent reflector position density LE approaching their surfaces. Furthermore, VC waveguide region does not affect conventional VCs’ time. emission mode generated HPM TM01 with single remained unaffected. positively influenced axial radial electric fields. When compared VC, field increased 25.5 18 times VCs. findings suggested that future hope achieving high efficiency.