A high-power periodic nanosecond pulse source of coherent 8-cm electromagnetic radiation |
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Authors: | K. V. Afanas’ev N. M. Bykov V. P. Gubanov A. A. El’chaninov A. I. Klimov S. D. Korovin V. V. Rostov A. S. Stepchenko |
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Affiliation: | (1) Institute of High-Current Electronics, Siberian Division, Russian Academy of Sciences, Tomsk, Russia |
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Abstract: | The generation of short electromagnetic pulses excited in an extended slow-wave system (SWS) of a relativistic backward wave tube (BWT) operating in the so-called superradiance regime with a carrier frequency of 3.7 GHz has been simulated and experimentally studied. At a decreased magnetic field (about 0.2 T) in the SWS, the BWT generated 2.5-ns microwave pulses with a power of up to 800 MW. At a pulse repetition rate of 100 Hz, the working life of the system was limited by the lifetime of an explosive emission cathode (106 pulses). The possibility of phase synchronization of the high-frequency field of the relativistic microwave oscillator with respect to the voltage pulse front is demonstrated for the first time. |
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