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The current status of the various theoretical approaches to the description of turbulence in the electron flow and electronic devices of ultrahigh frequencies (UHF) is shown. A three types of turbulence in nonlaminar electron flow were considered. The first type of turbulence is caused by the intersection of the electron trajectories (eg, due to thermal velocities) and it is common to all the electron...
The multispeed electron beams with periodically varying diameter can be used to create a broadband amplifier and generator tubes. The experimental results showed the possibility of transition from generation to gain due to the formation a number of local droops of capacity in pulsating electron beams.
The results of theoretical and experimental study of multispeed electron beams are considered. Efficient methods for the formation of such electron beams are proposed. An overview of the using of multispeed electron beams to generate and amplify microwave signals of different complexity is provided.
This paper presents the results of experimental studies of the main modes of the generators of microwave chaotic oscillations with internal electronic and external feedback. We consider pulse and continuous modes. It is experimentally established that the considered generators of noise-like oscillations have ultra-wide band of generation. Statistical properties of generated signals have been illustrated...
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