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Simulation of nonstationary processes in backward-wave tube with the self-modulation of emission (Carcinotrode)

  • Microwave Electronics
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Abstract

The equations that describe nonlinear nonstationary processes in carcinotrode (backward-wave tube with the emission modulation in the presence of the field of the output signal fed to the cathode via a feedback loop) are derived. An algorithm and the corresponding code are developed to solve the equations with allowance for the modulation of emission using nonuniform (with respect to time) large particles (electrons of equal charge) ejected from the cathode. The effect of the feedback parameter on the intensity and shape of the carcinotrode oscillations is analyzed. It is demonstrated that the carcinotrode efficiency can be increased to about 50% upon the generation of harmonic oscillations. A more significant increase in the efficiency to 70% is possible in the regime of the weak self-modulation of oscillations upon an increase in the feedback coefficient in the feedback loop involving the slow-wave structure and the cathode and a decrease in the cathode-grid static field.

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Authors
  1. V. O. Melikhov
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  2. M. V. Nazarov
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  3. V. A. Solntsev
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Additional information

Original Russian Text © V.O. Melikhov, M.V. Nazarov, V.A. Solntsev, 2009, published in Radiotekhnika i Elektronika, 2009, Vol. 54, No. 12, pp. 1481–1490.

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Melikhov, V.O., Nazarov, M.V. & Solntsev, V.A. Simulation of nonstationary processes in backward-wave tube with the self-modulation of emission (Carcinotrode). J. Commun. Technol. Electron. 54, 1403–1412 (2009). https://doi.org/10.1134/S1064226909120109

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  • DOI: https://doi.org/10.1134/S1064226909120109

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