Abstract :
A C-band, backward wave, crossed field amplifier for use in a new multi-stage pulsed radar transmitter has recently been developed. This tube, the QKS1343, features high average power capability together with small size, light weight, and high efficiency. It is rated at 1.5 megawatts peak and 15 kilowatts average power output at 100 microseconds pulse duration. Nominal operating efficiency of 60% is achieved over the frequency band 5.4 to 5.9 GHz. Models have been built and delivered for field use and evaluation.
