论文部分内容阅读
定义了光子带隙谐振腔(photonic-band-gap cavity,PBGC)的等效半径,论证了使用该半径将PBGC等效为具有模式选择性的金属圆柱谐振腔的有效性,揭示了其在PBGC设计过程中的指导性作用.基于等效半径的运用,建立起光子带隙谐振腔回旋管振荡器(PBG回旋管)的自洽非线性理论,并对工作于TE32模的PBG回旋管作了理论分析和数值计算.目前的研究表明:高频电磁场沿角向呈行波或驻波的不同极化形式对PBG回旋管的注-波互作用过程具有较大的影响;较之电子回旋基波,该器件中二次谐波与TE-32模式波的互作用效率更高,提示由于PBGC优秀的选模能力,可望实现回旋管中高阶横向电磁模与高次电子回旋谐波的有效耦合,为相关研究提供了新的线索.
The equivalent radius of photonic-band-gap cavity (PBGC) is defined, and the validity of PBGC equivalent to a mode-selective metal cylindrical resonator using this radius is demonstrated. Based on the application of equivalent radius, a self-consistent nonlinear theory of photonic bandgap resonator gyrotron oscillator (PBG gyro) was established, and the PBG gyro working on TE32 mode was made Theoretical analysis and numerical calculation.The current research shows that the different polarization forms of high frequency electromagnetic field with traveling wave or standing wave in the direction of angle have a great influence on the annihilation interaction of PBG gyrotron.Compared with the electron cyclotron Wave. The interaction between the second harmonic wave and the TE-32 mode wave in the device is more efficient, suggesting that due to the excellent selection ability of the PBGC, it is expected that the high order transverse electromagnetic mode and the high order electron cyclotron in the gyrotron will be effective Coupling provides new clues for related research.