一种用于双共焦结构太赫兹回旋行波管的准光模式变换器
By employing dual confocal waveguides and Gaussian beam transform theory, a reflective mirror structure was designed, which solved the problem of uneven mode density and field distribution in single confocal waveguides, and achieved the effect of converged output and energy concentration of Gaussian beams.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2023-12-20
- Publication Date
- 2026-07-17
AI Technical Summary
The mode density of a single confocal waveguide does not increase with the increase of mode order. The non-uniform distribution of the transverse field leads to weak coupling between the electron beam and the high-frequency field, which reduces the beam-wave interaction efficiency of the gyroscopic traveling wave tube.
A dual confocal waveguide structure is adopted, and the Gaussian beam transformation theory and ABCD law in geometric optics are combined to design a reflecting mirror to transform the HE06 mode into a Gaussian beam, which is then focused and converged through a quasi-parabolic reflecting mirror.
This improved the beam-wave interaction efficiency of the cyclotron traveling wave tube, reduced mode distortion and energy loss, and enabled the converged output of the Gaussian beam.
Smart Images
Figure CN117538987B_ABST