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THz gyrotron RF System Research

Author: ZhouYong
Tutor: LuoYong
School: University of Electronic Science and Technology
Course: Physical Electronics
Keywords: Gyrotron Field matching Cascade matrix Orbital Theory Particle Simulation MAGIC
CLC: TN12
Type: Master's thesis
Year: 2008
Downloads: 119
Quote: 1
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Abstract


In recent years, international academic research on THz technology is gradually warming up, because THz range is between millimeter and infrared, THz radiation generated great difficulties, the current THz source for radar, remote detection, medicine, experiments have important applications that require high-power THz radiation, so the THz radiation is one focus of the study, while the gyrotron is promising THz radiation, that is, the purpose of this article gyrotron achieved using THz radiation for some useful attempt. The first part of the article I outlined the extensive application of THz technology, direction and development and other issues, and then again the basic principles of gyrotron with a brief introduction. In the second part of my cold gyrotron frequency method has been studied using field matching method for single-stage mutation analyzes the structure, combined with the cascade matrix method two, until the gradual multi-level structure is analyzed, the transport structure obtained S-parameter matrix, and the phase change in resonance conditions of the resonant frequency obtained calculation method also gives the Q value is calculated, while another study a more convenient f and Q The calculation method is based on theoretical research after using matlab calculate a specific pattern wave cavity resonance frequency and the Q value. In the third part of my swing administration were studied, including linear and nonlinear theory of non-self-consistent theory that orbit theory, the derivation of the equations of motion of the electron and simplify the process, with the Gaussian distribution to approximate market segment, the use of equations of motion for the electronic numerical study of the electronic and magnetic parameter optimization efficiency calculation. In the fourth part of the study design 200GHz cyclotron frequency oscillating tube structure to the first two chapters of the theoretical analysis based on analysis of the work mode selection, competition pattern analysis, selection and cavity structure issues such as electrical parameters, obtained particles the parameters needed to simulate the use of particle simulation software magic right 200GHz gyrotron was simulated, and the simulation results are analyzed, in particular, the cavity length, magnetic field parameters on the interaction efficiency. Finally, in order to 200GHz gyrotron design process based on 1THz gyrotron was attempted study, the same analysis of the work mode selection, competition pattern analysis, the cavity structure selection and other issues, the results of the design is also used magic software for the simulation.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Vacuum Electronics > Microwave tubes
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