The PCM focused millimeter-wave sheet beam TWT

The research and development of period cusp magnet (PCM) focused millimeter-wave sheet beam traveling wave tubes based on the double staggered grating waveguide are presented both in Ku and Q band. In the hot test, the Ku band tube provides a beam transmission of 81% and more than 15kW peak output power, while the Q band design provides a beam transmission about 92% and more than 1.4kW peak output power. Specifications including the gun, PCM, RF and hot test are discussed.