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ISSN 2542-1905 (Online)

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Grishin S. V., Dmitriev B. S., Zharkov Y. D., Manyshev R. A., Skorokhodov V. N. Chaotic microwave pulse generation in wideband spin­wave and vacuum oscillators of chaos under external periodical influence. Izvestiya VUZ. Applied Nonlinear Dynamics, 2012, vol. 20, iss. 5, pp. 137-155. DOI: 10.18500/0869-6632-2012-20-5-137-155

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621.373.9, 621.318.124

Chaotic microwave pulse generation in wideband spin­wave and vacuum oscillators of chaos under external periodical influence

Grishin Sergej Valerevich, Saratov State University
Dmitriev Boris Savelevich, Saratov State University
Zharkov Yurij Dmitrievich, Saratov State University
Manyshev Roman Aleksandrovich, Saratov State University
Skorokhodov Valentin Nikolaevich, Saratov State University

The non-autonomous generation of chaotic microwave pulses in the wideband chaos oscillators is experimentally investigated. Nonlinearity of a spin-wave transmission line is a cause of chaotic dynamics of the spin-wave chaos oscillator and nonlinearity of a TWT amplifier is a cause of chaotic dynamics of the other chaos oscillator. It is shown, that in both cases, the generation of chaotic microwave pulses is observed when an external pulsemodulated microwave signal has a certain power level and its carrier is detuned from a central frequency of a chaotic signal. However, in non-autonomous regime, the increase of integral power of a chaotic microwave signal in comparison with the autonomous regime is only observed in the spin-wave chaos oscillator. This effect is demonstrated by the change of pulse ratio of external microwave pulses. The three-wave parametric interaction of spin waves in a ferromagnetic film leading to the increase of amplitude of a chaotic signal in a non-stationary range in comparison with the stationary range is a cause of the increase of integral power of a chaotic pulse signal.

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