2021
DOI: 10.26565/2312-4334-2021-2-05
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Mode-Converting Corrugations for Cavities of Second-Harmonic Gyrotrons with Improved Performance

Abstract: Mode-converting longitudinal corrugations are used as a means of improving the selectivity properties of cavities for second-harmonic gyrotrons. As an example, 100-kW 0.3-THz second-harmonic gyrotron is considered. For the operating second-harmonic mode and most dangerous first-harmonic competing modes, the eigenvalues, ohmic losses and beam-wave coupling coefficients are investigated with respect to dimensions of a corrugated cavity. The most optimal parameters are found for a gyrotron cavity with mode-conver… Show more

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“…This concept was proposed in [18], where it was used in a coaxial gyrotron cavity for enhancing the operation of a first-harmonic gyrotron and was adopted in [19]. It was also used in [20], albeit without a coaxial insert, for low-power second-harmonic operation at 300 GHz.…”
Section: Introductionmentioning
confidence: 99%
“…This concept was proposed in [18], where it was used in a coaxial gyrotron cavity for enhancing the operation of a first-harmonic gyrotron and was adopted in [19]. It was also used in [20], albeit without a coaxial insert, for low-power second-harmonic operation at 300 GHz.…”
Section: Introductionmentioning
confidence: 99%