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引用次数: 1
摘要
本文重点研究了ka波段双槽交错耦合腔行波管的PIC仿真。仿真中使用的坐标系为直角坐标系(x, y, z)。本文给出了双槽交错CCTWT电路的MAGIC3D模型。在壁上开有连接槽以分离空腔。在同一面墙上有两个槽,绕梁轴旋转180度。槽的位置错开了90度,用于连续的墙壁。CCTWT采用可重入双槽交错射频腔结构。由于带宽宽,相互作用阻抗适中,选择了双交错槽。
Particle-in-cell simulations on a Ka-band, double-slot staggered coupled-cavity traveling-wave tube
This paper focuses on PIC simulations of Ka-band, double-slot staggered coupled-cavity TWT. The coordinate system used in the simulation is a rectangular coordinate system (x, y, z). The paper shows a MAGIC3D model of a double-slot staggered CCTWT circuit. Coupling slots are cut into the wall to separating the cavities. There are two slots rotated 180 degrees about the beam axis in the same wall. The slot location is staggered by 90 degrees for successive walls. The CCTWT employed a reentrant double-slot staggered RF cavity structure. The choice of double staggered slots was made because of the wide frequency bandwidth and the moderate interaction impedance.