“…The magnicon tube developed for this application is a frequency doubler, or second harmonic amplifier, operating at a frequency of 7 GHz [5,6]. This magnicon has demonstrated experimentally an output power of 55 MW, an efficiency of 56%, and a gain of ~70 dB in a 1 µsec pulses, in very good agreement with simulation results [7,8]. Another frequency-doubling magnicon amplifier at the NLC frequency of 11.424 GHz has been designed and built in a collaboration between Omega-P, Inc and Naval Research Laboratory (NRL).…”