REPETITIVE OPERATION OF AN S-BAND, 1 GW RELATIVISTIC KLYSTRON AMPLIFIER

摘要

This letter reports on the operation of a repetitively pulsed relativistic klystron amplifier at 100 pps. The electron beam was reproducibly modulated to > 74%. Using a 700 kV, 7 Ka, 25 ns electron beam and a 600 kW Magnetron as inputs, we extracted 1.3 GW radiated power in 20 ns FWHM pulses at 2.95 GHz. The average power is 2.4 kW. The efficiency is 24%, and the gain is about 33 dB.