The microstrip meander-line traveling wave tube (TWT) is a kind of small sized, low voltage, low cost, and easy to fabricate TWT. It is an attractive choice for many applications, such as communication systems, phased array radars, security detectors, and electronic counter measure (ECM) instruments. In this paper, a Ka band U-shape meander-line slow wave structure (SWS) supported by a diamond rod is presented. The dispersion characteristics of this meander-line SWS are analyzed using CST MW Studio. The S-parameter simulation results show that the reflection is below − 15 dB between 32 and 38 GHz, and the particle-in-cell (PIC) simulation reveals that this meander-line TWT can produce 57 W output power at 36 GHz, when it is driven by a 8.1 kV, 0.04 A sheet beam with rectangular cross-sectional area of 1.0 mm × 0.12 mm. This meander-line SWS is manufactured, assembled, and tested. The good agreement between the simulated and measured S₁₁ has been achieved and the mismatch between the simulated and measured S₂₁ has been discussed at the end.

微带曲折线行波管（TWT）是一种体积小，电压低，成本低，易于制造的TWT。对于许多应用而言，这是一个有吸引力的选择，例如通信系统，相控阵雷达，安全检测器和电子对抗措施（ECM）仪器。本文提出了一种由金刚石棒支撑的Ka波段U形曲折线慢波结构（SWS）。使用CST MW Studio分析该曲折线SWS的色散特性。S参数仿真结果表明，在32至38 GHz之间的反射低于− 15 dB，并且单​​元内粒子（PIC）仿真表明，这种曲折线TWT在36 GHz时可产生57 W的输出功率。它由8.1 kV，0.04 A薄板梁驱动，矩形横截面为1.0 mm×0.12 mm。该曲折线SWS已制造，组装和测试。模拟和测量之间的良好一致性已经实现了S ₁₁，并且最后讨论了模拟和测量的S ₂₁之间的不匹配。