Pulsed repeater amplifier

摘要

1. A pulsed repeater amplifier circuit comprising three traveling wave tubes, each said tube having a helical coil disposed therewithin; an input antenna; an output antenna; means connecting the said antennas and the said tubes in cascade so that a wave received on the input antenna is conducted successively through the said three tubes to the output antenna; means for establishing a predetermined electrostatic field about the helical coil in each tube; and means responsive to an individual modulating signal on the control grid of each tube for amplifying the wave during perdetermined intervals as it travels through each tube.