Double-Corrugated Rectangular Waveguide Slow-Wave Structure for Terahertz Vacuum Devices
Double-Corrugated Rectangular Waveguide Slow-Wave Structure for Terahertz Vacuum Devices
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DOI：
10.1109/ted.2010.2071876
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发表时间：
2010-10
影响因子：
3.1
通讯作者：
M. Mineo;C. Paoloni
中科院分区：
文献类型：
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作者：
M. Mineo;C. Paoloni
提出了一种用于亚毫米和太赫兹真空器件的新型矩形波纹波导。两个平行的波纹被封装在矩形波导中，形成一个光束通道，支持与圆柱形电子束的相互作用。双波纹矩形波导慢波结构（SWS）的一个显著优点是将成熟的圆柱波束技术扩展到波纹波导慢波结构。该结构也可以用最新的微加工技术完全实现，并且易于组装。通过三维电磁仿真，详细地研究了该系统的电磁特性。利用三维粒子单元代码，设计并模拟了一个650 ghz的反向波振荡器和一个227 ghz的行波管，以突出双波纹矩形波导在亚毫米波频率真空器件中的巨大潜力。
A novel rectangular-corrugated waveguide is proposed for submillimeter and terahertz vacuum devices. Two parallel corrugations that are enclosed in a rectangular waveguide create a beam channel that supports an interaction with a cylindrical electron beam. A notable advantage of the double-corrugated rectangular waveguide slow-wave structure (SWS) is the extension of well-established cylindrical beam technology to corrugated waveguide SWSs. The structure is also fully realizable with the most recent microfabrication techniques and is easily assembled. A detailed study to describe the electromagnetic behavior of the presented SWS is performed by 3-D electromagnetic simulation. A 650-GHz backward-wave oscillator and a 227-GHz traveling-wave tube are designed and simulated, by 3-D particle-in-cell code, to highlight the great potential of the double-corrugated rectangular waveguide for submillimeter frequency vacuum devices.