Journal of Radio Electronics. eISSN 1684-1719. 2023. 11

Full text in Russian (pdf)

Russian page




Numerical simulation of operation of two gyrotrons with a common resonant reflector


Yu.V. Novozhilova, A.A. Bogdashov, A.V. Nazarovsky, A.P. Fokin, M.Yu. Glyavin, G.G. Denisov


Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, 603950, Nizhny Novgorod, Ul'yanov St., 46


The paper was received November 27, 2023


Abstract. The generation regimes of two gyrotrons with a common narrow-band resonant reflector were studied using numerical simulation in the approximation of a fixed field structure. The dependences of the output power and generation efficiency, frequency and phase of oscillations of each gyrotron on system parameters, such as the driving magnetic field, mutual detuning of the gyrotrons eigen frequencies and the phase delay of the reflected wave, have been calculated. Using the example of gyrotrons at a frequency of 28 GHz with an output power of up to 10 kW, the possibility of stabilizing the radiation frequency of two gyrotrons when part of their power is reflected from an external high-Q resonator was demonstrated. It is shown that even if the eigen frequencies of the gyrotron resonators and the delay phases of the reflected wave do not coincide, it is possible to obtain frequency-stable states in which the phase difference of the gyrotrons does not depend on time and on the initial conditions, while the radiation power of each gyrotron exceeds the power of autonomous generation.

Key words: gyrotron frequency locking, numerical simulation, reflection from a high-Q resonator.

Financing: The work was supported by the Russian Science Foundation, grant No. 19-79-30071,

Corresponding author: Novozhilova Yulia Vladimirovna,


1. Thumm M. K. A. et al. High-power gyrotrons for electron cyclotron heating and current drive // Nuclear Fusion. 2019. . 59. . 7. . 073001.

2. Othman M. A. K. et al. Experimental demonstration of externally driven millimeter-wave particle accelerator structure // Applied Physics Letters. 2020. . 117. . 7.

3. Mizojiri S. et al. Subterahertz wireless power transmission using 303-GHz rectenna and 300-kW-class gyrotron // IEEE Microwave and Wireless Components Letters. 2018. . 28. . 9. . 834-836.

4. Fukunari M. et al. Rocket propulsion powered using a gyrotron // Journal of Energy and Power Engineering. 2017. . 11. . 6. . 363-371.

5. Sintsov S. V. et al. Decomposition of carbon dioxide in a discharge maintained by continuous focused sub-terahetz radiation at atmospheric pressure // Technical Physics Letters. 2023. . 49. 1. . 44.

6. Bakunin V. L., Denisov G. G., Novozhilova Y. V. Frequency and phase stabilization of a multimode gyrotron with megawatt power by an external signal // Technical Physics Letters. 2014. . 40. . 382-385.

7. Kuftin A. N. et al. First demonstration of frequency-locked operation of a 170 GHz/1 MW gyrotron // IEEE Electron Device Letters. 2023.

8. Glyavin M. Y. et al. Stabilization of gyrotron frequency by reflection from nonresonant and resonant loads // Technical Physics Letters. 2015. . 41. . 628-631.

9. Zotova I. V. et al. Frequency locking and stabilization regimes in high-power gyrotrons with low-Q resonators // Radiophysics and Quantum Electronics. 2016. . 58. . 684-693.

10. Novozhilova Y. V., Ishenko A. S. Analytical theory of an RF generator phase-locked by the resonant load with delayed reflection // Journal of Infrared, Millimeter, and Terahertz Waves. 2011. . 32. . 1394-1406.

11. Fokin A. P. et al. Experimental demonstration of gyrotron frequency stabilization by resonant reflection // IEEE Electron Device Letters. 2021. . 42. . 7. . 1077-1080.

12. Nusinovich G. S. Introduction to the Physics of Gyrotrons. JHU Press, 2004.

13. Bogdashov A. A. et al. Resonant reflectors for experimental studies of the reflected-signal influence on the gyrotron operation regimes // Radiophysics and Quantum Electronics. 2020. . 63. . 371-380.

14. Novozhilova Yu.V., Bogdashov A.A., Glyavin M.Yu., Denisov G.G., Fokin A.P., Nazarovsky A.V., Rozental R.M. Studying the possibility of frequency stabilization of two gyrotrons under the influence of reflection from an external high-Q resonator // Journal of Radio Electronics. 2023. . 11. (In Russian)

For citation:

Novozhilova Yu.V., Bogdashov A.A., Nazarovsky A.V., Fokin A.P., Glyavin M.Yu., Denisov G.G. Numerical simulation of operation of two gyrotrons with a common resonant reflector // Journal of Radio Electronics. 2023. . 11. (In Russian)