用于电子顺磁共振光谱的263吉赫兹行波管的演示。
Demonstration of a 263-GHz Traveling Wave Tube for Electron Paramagnetic Resonance Spectroscopy.
作者信息
Pan Pan, Zheng Yuan, Li Ying, Song Xubo, Feng Zhihong, Feng Jinjun, Britt R David, Luhmann N C
机构信息
National Key Laboratory of Science and Technology on Vacuum Electronics (NKLST-VE), Beijing Vacuum Electronics Research Institute (BVERI), Beijing 100015, China.
National Key Laboratory of Science and Technology on Vacuum Electronics (NKLST-VE), University of Electronic Science and Technology of China (UESTC), Chengdu, China.
出版信息
IEEE Trans Electron Devices. 2023 Nov;70(11):5897-5902. doi: 10.1109/ted.2023.3312230. Epub 2023 Sep 20.
In this letter, a 263 GHz traveling wave tube for electron paramagnetic resonance spectroscopy is designed, fabricated and tested. A periodic permanent magnet focused pencil beam electron optical system is adopted. A folded waveguide slow-wave structure with modified serpentine bends is optimized to provide high-power wideband performance and stable operation. An experiment has been performed to verify the analysis results and confirm the amplifier stability. The device provides a maximum 11.9 W saturation output power and 25.5 dB saturation gain. Although the available solid-state signal source is unable to drive the amplifier to saturation beyond 260 - 264 GHz, 10 W output power over 5.6 GHz bandwidth has been measured.
在这封信中，设计、制造并测试了一种用于电子顺磁共振光谱的263GHz行波管。采用了周期性永磁聚焦笔形束电子光学系统。对带有改进型蛇形弯曲的折叠波导慢波结构进行了优化，以提供高功率宽带性能和稳定运行。进行了一项实验以验证分析结果并确认放大器的稳定性。该器件提供最大11.9W的饱和输出功率和25.5dB的饱和增益。尽管现有的固态信号源无法将放大器驱动到260 - 264GHz以上的饱和状态，但已测得在5.6GHz带宽上的输出功率为10W。
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