A Model of Two-Stage Active Compressor of Microwave-Pulses with Open Two-Mirror Storage Resonator in the First Stage
А model of a two-stage microwave pulse compressor was proposed. For energy storage in the first stage, an open two-mirror resonator with a diffraction grating consisting of four metal bars of rectangular cross-section is used. This grating made it possible to significantly thin out the spectrum of eigen oscillations of the open resonator and to increase the quality factor of the selected operating oscillation. The numerical experiments have allowed strictly simulate all the transient processes in the compressor: the accumulation of energy in the first stage of its resonant pumping of the second stage, evacuation into the outgoing waveguide. The 20.9 dB of the peak power amplification of the pump pulse was obtained in the numerical model.