研究目的
Investigating the selectivity properties of longitudinally corrugated waveguides for potential application in second-harmonic gyrotrons.
研究成果
The investigation demonstrates 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 shows improved selectivity properties of corrugated waveguides for second-harmonic gyrotrons. The study provides a foundation for the design of corrugated cavities with improved mode selectivity for second-harmonic gyrotrons.
研究不足
The study is limited to the investigation of selectivity properties of longitudinally corrugated waveguides for second-harmonic gyrotrons, focusing on the effect of corrugations on frequencies, ohmic losses, and mode conversion of guiding TE modes. The practical fabrication tolerances and the comprehensive consideration of all competing first-harmonic and second-harmonic modes for actual design of gyrotrons are not fully addressed.
