| Autor: |
Tkachova, Tetiana I., Shcherbinin, Vitalii I., Tkachenko, Viktor I. |
| Předmět: |
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| Zdroj: |
Journal of Infrared, Millimeter & Terahertz Waves; Oct2019, Vol. 40 Issue 10, p1021-1034, 14p |
| Abstrakt: |
Spatial harmonic method is applied to investigate selectivity properties of longitudinally corrugated waveguides for potential application in second-harmonic gyrotrons. The effect of corrugations on frequencies, ohmic losses, and mode conversion of guiding TE modes is studied in details. Numerical results are presented for operating second-harmonic and competing first-harmonic modes of a 0.4-THz gyrotron with corrugated RF structure. It is shown that longitudinal wall corrugations of proper dimensions can ensure increase in ohmic losses and decrease in beam-wave coupling strength for the first-harmonic modes, while their effect on the operating mode is only slight. This demonstrates improved selectivity properties of corrugated waveguides for second-harmonic gyrotrons. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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