POWERFUL WIDE-BAND AMPLIFIER BASED ON HYBRID PLASMA-CAVITY SLOW-WAVE STRUCTURE

A powerful beam plasma amplifier operating under continuous conditions is described. The amplifier is designed on new principles using hybri d plasma-cavity electrodynamic structures. The theory and foundation f or calculating slow-wave structures having a plasma filled propagation channel, and the interaction of an electron beam with a hybrid plasma -cavity system, are considered. Considerably increased power of microw ave radiation and expansion of the operating pass-band is shown to res ult when the propagation channel is filled with plasma. The use of new principles makes it possible to create an amplifier with an efficienc y and 3 dB operating band width higher than those attained in vacuum d evices.