Realization Method of Permanent Magnet Focusing System for Improving Electron Injection Flow Rate in High-Frequency Traveling-Wave Tube

This paper introduces and verifies an efficient implementation method of a high frequency traveling wave tube permanent magnet focusing system based on MFS software. According to the single-loop value of the magnetic field simulated by MFS, the method is used to magnetize and demagnetize each magnetic steel once and then splice it to obtain a magnetic system that meets the design requirements. The electronic focusing effect and circulation of the magnetic system processed by the method can better meet the design requirements.