A high power C-band DC operated crossed-field amplifier

A C-band, dc operated, forward wave crossed-field amplifier has been developed for phased array applications. This tube, designated the SFD-237, is a circular format, emitting sole, reentrant electron stream crossed-field amplifier utilizing a helix derived slow wave circuit. Designed specifically for phased array applications, the magnetically shielded package has a maximum transverse dimension of 10 inches and is 32 inches long. Design and construction details of the amplifier will be discussed.