【摘要】 从麦克斯韦方程出发,采用时域有限差分的方法,对X波段五腔渡越管振荡器的谐振腔进行了高频特性研究,给出了该谐振腔中的TM01模的非π模式的本征频率、Q值以及对应的场分布,并用实验冷测法测出了谐振腔的谐振频率与Q值。数值计算与实验结果比较一致,说明了该高频特性研究结果的可靠性。更多还原

【Abstract】 In order to investigate the highfrequency characteristics of the Xband fiveunit transittime tube oscillator (TTTO), the method of finiteunit differential of time domain (FDTD) is involved, then the Maxwell Equations are solved. And the frequency of the eigenmodes (belonging to nonpi mode of TM01 mode) and its distribution of electric field together with the Qvalue in the cavity are presented. Additionally, the experimental results are also put out. The experimental results are in accordance with the results of the numerical solution, which proves the reliability of the results.更多还原