1results about "Tubes with velocity/density modulated electron stream" patented technology

In order to solve the application problem of the traditional extended interaction device in the high frequency terahertz frequency band, the characteristic impedance of the resonant cavity and the interaction efficiency need to be improved, and the most effective method to improve the impedance is to introduce a new extended interaction resonant cavity operating mode. The application discloses an extended interaction oscillator based on staggered double grids, on the basis of the existing extended interaction oscillator, two groups of gratings are staggered along the z direction to form a staggered double grid structure, and the coupling input and output structure is moved to the electron beam injection end outside the y direction resonant cavity, so that a new operating mode, i.e. close to 2pi mode, is generated, stronger interaction effect is generated, the coupled energy is output to the rectangular waveguide through the coupling input and output structure, so that the purpose of reducing the interaction circuit length of the extended interaction oscillator is achieved.