Development of high power microwave compressors

Parameters of high power microwave compressors having a single storage cavity are presented for different frequency bands. Their resonant cavities operated with electrical field strength values close to critical ones which allowed par ex. to reach the output pulse power about 2 MW in Q- band and about 200 MW in S-band. Ways to go beyond these power values were considered. They were using asymmetrical TE-mode in a circular cavities, energy extraction through a multiport output element, the waveguide hybrid in this report, and series compression with resonant transfer of the energy stored in the first stage cavity.