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周期永磁聚焦耦合腔行波管的电子轨迹绘于r-z和x-y两投视图中。这些曲线是在磁场值为1.0～1.9倍布里渊值和在小信号与饱和高频条件下绘出的。文中指出,合适编程的场能控制电子注入口问题以及使高频散焦达到最小,而且能大大地减小电子注的出口角。
The electron trajectories of the periodic PMF coupled TWTs are plotted in two projection views, r-z and x-y. These curves are plotted at a magnetic field value of 1.0 to 1.9 times the Brillouin value and under small signal and saturated high frequency conditions. It is pointed out that a suitably programmed field can control the electron injection port and minimize high frequency defocusing and can greatly reduce the exit angle of the electron injection.