
486 Microwave Engineering
the applied voltage. The high perveance of the interaction geometry results
in a high current and high power capability at relatively low voltage. In the
injected-beam tube, the electron beam is generated in a separate gun assem-
bly and then injected into the interaction region. The beam–circuit interac-
tion features in emitting sole and injected beam tubes are similar. In both,
the favorably phased electrons travelling towards the positively polarised
anode are collected and unfavorably phased electrons are directed towards
the negatively polarised electrode. The conguration comprising different
components of FWCF ...