论文部分内容阅读
分析了光子晶体谐振腔(PBGC)的模式选择功能,实现PBGC回旋管振荡器高阶电磁模与高次电子回旋模的有效耦合。通过对PBGC禁带特性的分析,定出了工作模式TE34模,并成功抑制了模式竞争。文中建立了PBGC回旋管的等效半径的概念,完成了自洽非线性理论和相关的计算机数值模拟程序。研究发现TE34模能有效地与电子的3次回旋谐波相互作用,其耦合频率为130.5GHz,并极大地降低了对工作磁场的要求。在考虑诸多物理因素影响的情况下,对该3次谐波PBGC回旋管振荡器进行了参数优化研究,得到了参数为:电压430kV、电流35A、磁场1.84T、输出功率1.75MW、互作用效率11.5%的3次谐波TE34模PBGC回旋管振荡器。
The mode selection function of PBGC is analyzed to realize the effective coupling between high order electromagnetic mode and high order electron cyclotron of PBGC gyrotron oscillator. By analyzing the characteristics of the forbidden band of PBGC, the working mode TE34 mode is determined and the mode competition is successfully suppressed. In this paper, the concept of equivalent radius of PBGC gyrotron has been established and a self-consistent nonlinear theory and related computer numerical simulation program have been completed. It is found that the TE34 mode effectively interacts with the third harmonic of electrons with a coupling frequency of 130.5GHz and greatly reduces the requirement for the working magnetic field. Taking into account the influence of many physical factors, the third harmonic PBGC gyrotron oscillator was optimized. The parameters were: voltage 430kV, current 35A, magnetic field 1.84T, output power 1.75MW, interaction efficiency 11.5% 3rd Harmonic TE34 Mode PBGC Gyro Tube Oscillator.