1. Novel Folded Frame Slow-Wave Structure for Millimeter-Wave Traveling-Wave Tube.
- Author
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Guo, Wei, Yanyu, Zhang, Minghao, Travish, Gil, Yue, Lingna, Xu, Jin, Yin, Hairong, Huang, Minzhi, Gong, Yubin, and Wang, Wenxiang
- Subjects
- *
SLOW wave structures , *MILLIMETER waves , *TRAVELING-wave tubes , *LOW voltage systems , *SYSTEMS design , *ENERGY consumption , *ELECTRON beams - Abstract
A new type of folded frame slow-wave structure (SWS) is introduced and used in the design of a low-voltage, high-efficiency, and widebandwidth millimeter-wave traveling-wave tube (TWT). The high-frequency characteristics of the folded frame structure, including dispersion properties, coupling impedances, and reflection characteristics are investigated. The beam-wave interaction of the TWT with the folded frame SWS working at the millimeter-wave frequency range is also calculated using 3-D particle-in-cell algorithms. The simulation results reveal that with sheet electron beam parameters of 6000 V and 0.2 A, the average output power and electron efficiency can reach 196 W and 16.3%, respectively. Compared with the symmetric double V-shaped microstrip meander-line SWS, the folded frame SWS has larger coupling impedances and can generate higher output power. [ABSTRACT FROM PUBLISHER]
- Published
- 2013
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