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为了精准快速地计算微波器件中微放电效应的阈值,在传统蒙特卡罗方法的基础上,提出了三种不同的蒙特卡罗方法,分别对二次电子的初始能量、出射角度和初始相位等参数进行随机,结合四阶龙格-库塔法和Furman模型计算电子的运动轨迹和单次碰撞产生的二次电子发射系数,然后应用不同的方法计算有效二次电子发射系数作为微放电效应的判据.以平板传输线TEM模式为研究对象,采用四种不同的蒙特卡罗方法计算微放电阈值,并与统计模型结果进行对比.结果表明单电子-多碰撞蒙特卡罗方法误差最小,而且稳定性最好.
In order to accurately and quickly calculate the threshold value of micro-discharge in microwave devices, three different Monte Carlo methods are proposed based on the traditional Monte Carlo method. The initial energies, exiting angles and initial phases of the secondary electrons Parameters were randomly combined with the fourth-order Runge-Kutta method and Furman model to calculate the trajectory of electrons and the secondary electron emission coefficient generated by a single collision. Then, different methods were used to calculate the effective secondary electron emission coefficient as the micro-discharge effect Criterion.Taking the transmission mode TEM as the research object, four different Monte Carlo methods are used to calculate the micro-discharge threshold and compared with the statistical model results.The results show that the single-electron-multiple collision Monte Carlo method has the smallest error and is stable The best sex.