High power microwave system based on power combination and pulse compression of conventional klystrons

A high power microwave system based on power combination and pulse compression of conventional klystrons is introduced in this paper. This system mainly consists of pulse modulator, power combiner, driving source of klystrons and pulse compressor. A solid state induction modulator and pulse transformer were used to drive two 50MW S-band klystrons with pulse widths 4μs in parallel, after power combination and pulse compression, the tested peak power had reached about 210MW with pulse widths nearly 400 ns at 25Hz, while the experimental maximum output power was just limited by the power capacity of loads. This type of high power microwave system has widely application prospects in RF system of large scale particle accelerators, high power radar transmitters and high level electromagnetic environment generators.