Frequency-Tunable Second Harmonic Gyrotron With Selective Cavity: Design and Simulations

We show numerically that the gyrotron cavity with specially designed rectangular grooves provides a selective gyrotron excitation at the second cyclotron harmonic and allows frequency tuning. Simulations predict that the output power higher than 10 W can be obtained in the 0.3% band near the frequen...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2022-03, Vol.69 (3), p.1402-1408
Main Authors: Bandurkin, Ilya V., Glyavin, Mikhail Y., Fedotov, Alexey E., Fokin, Andrey P., Fukunari, Masafumi, Osharin, Ivan V., Savilov, Andrey V., Shchegolkov, Dmitry Y., Tatematsu, Yoshinori
Format: Article
Language:English
Subjects:
Cutoff frequency
Cyclotron resonance devices
Cyclotrons
Electron beams
Frequency tuning
Grooves
gyrotron
Gyrotrons
Harmonic analysis
high cyclotron harmonics
Particle in cell technique
Q-factor
Scattering
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Summary:We show numerically that the gyrotron cavity with specially designed rectangular grooves provides a selective gyrotron excitation at the second cyclotron harmonic and allows frequency tuning. Simulations predict that the output power higher than 10 W can be obtained in the 0.3% band near the frequency of 400 GHz for a 15-kV, 0.5-A electron beam. Results obtained by analytical model calculations and particle-in-cell (PIC)-code are in good agreement.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2022.3142657