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Journal Radioengineering №7 for 2017 г.
Article in number:
Modeling the interaction of multi-beam electron stream with the microwave field in the output quasi-fractal double-gap resonator of klystron
Type of article: scientific article
UDC: 621.385.69
Keywords: three-dimensional simulation multi-beam klystron quasi-fractal resonator the antiphase type of oscillations electronic efficiency output power.
Authors:

V.A. Tsarev – Dr. Sc. (Eng.), Professor, Department «Electronic Instruments and Devices», Yuri Gagarin State Technical University of Saratov

E-mail: tsarev_va@mail.ru

V.Yu. Muchkaev – Ph. D. (Eng.), Associate Professor, Department «Electronic Instruments and Devices», Yuri Gagarin State Technical University of Saratov

E-mail: muchkaev_vadim@mail.ru

D.A. Nesterov – Post-graduate Student, Department «Electronic Instruments and Devices», Yuri Gagarin State Technical University of Saratov

E-mail: enlucioro@gmail.com

Abstract:

The calculation results of the interaction of a density modulated electron beam with a microwave field of the π-type in the new type of oscillatory systems for multibeam klystrons - a spatially developed two-gap quasi-fractal resonator excited at 2.43 GHz are presented. For the eight-beam electron stream, the optimum parameters of this process was determined in the modes of high efficiency and maximum output power. It is shown that with the selected value of the accelerating voltage of 10 kV, the loaded Q-factor of 169, and the relative value of the first harmonic of the convection current I'1 = 1, the electron efficiency reaches a maximum value of about 68% with the micro-perveance of one beam рµ1 = 0.117 μA/V3/2, and the output power reaches values of 16.4 kW at рµ1 = 1 μA/V3/2.

Pages: 31-36
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Date of receipt: 28 июня 2017 г.