Electromagnetic Modeling of a Complex-Cavity Resonator for the 0.4-THz Second-Harmonic Frequency-Tunable Gyrotron

Electromagnetic Modeling of a Complex-Cavity Resonator for the 0.4-THz Second-Harmonic Frequency-Tunable Gyrotron

Complex-cavity resonator with mode conversion is a promising way of improving mode selection properties of a terahertz gyrotron. In this paper, enhancement of the frequency tunability of the second-harmonic 0.4-THz gyrotron by using the complex-cavity resonator is considered. Results of detailed num...

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Veröffentlicht in:IEEE transactions on electron devices 2017-12, Vol.64 (12), p.5141-5146
Hauptverfasser: Melnikova, Maria M., Rozhnev, Andrey G., Ryskin, Nikita M., Tatematsu, Yoshinori, Fukunari, Masafumi, Yamaguchi, Yuusuke, Saito, Teruo
Format: Artikel
Sprache:eng
Schlagworte:
Cavity resonators
Complex-cavity resonator
Couplings
Frequency conversion
frequency tunability
Gyrotrons
high-order axial modes (HOAM)
Oscillators
Q-factor
Resonant frequency
second harmonic
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Beschreibung
Zusammenfassung:Complex-cavity resonator with mode conversion is a promising way of improving mode selection properties of a terahertz gyrotron. In this paper, enhancement of the frequency tunability of the second-harmonic 0.4-THz gyrotron by using the complex-cavity resonator is considered. Results of detailed numerical study of the cold-cavity electromagnetic parameters are presented. Using the results of cold-cavity simulations, start-oscillation currents for different modes are calculated.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2017.2764874