Features of electron dynamics in a vircator with a magnetic mirror

Computer simulation of a vircator with a magnetic mirror is carried out, th e features of electron dynamics in it are investigated, and the generation characteristics of this vircator are compared with those of a vircator with out a magnetic mirror. It is found that the vircator with a magnetic mirror allows one to obtain considerably higher levels of generation of microwave power as compared with a conventional vircator. However, in the former typ e of vircator, there may arise specific instabilities of counterpropagating beams of transmitted electrons, which result in a "squeezed" state and fai lure of oscillations.