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Kurkin S. A., Koronovskii A. A., Levin Y. I., Hramov A. E. Wideband chaotic generation and optimization of characteristics in microwave generator with electronic feedback and magnetic periodic focusing system. Izvestiya VUZ. Applied Nonlinear Dynamics, 2010, vol. 18, iss. 3, pp. 104-127. DOI: 10.18500/0869-6632-2010-18-3-104-127

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Wideband chaotic generation and optimization of characteristics in microwave generator with electronic feedback and magnetic periodic focusing system

Kurkin Semen Andreevich, Innopolis University
Koronovskii Aleksei Aleksandrovich, Saratov State University
Levin Yurij Ivanovich, Saratov State University
Hramov Aleksandr Evgenevich, Immanuel Kant Baltic Federal University

With the help of 2D numerical model it has been investigated the nonlinear dynamics and generation of wideband chaotic signals in the generator based on electron beam with the virtual cathode. It has been discovered the strong influence of the external non-uniform magnetic field on the nonlinear dynamics of the virtual cathode in the system. It has been analyzed the physical processes responsible for the discovered dependency of dynamics of the electron beam with the virtual cathode on the parameters of the external nonuniform magnetic field. The dependencies of the output generation power in the system with virtual cathode on the characteristics of the external non-uniform magnetic field were investigated. Optimization of the parameters of magnetic periodic focusing system of the generator for the maximum bandwidth and power of the chaotic generation was carried out.

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