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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.

DOI:10.1109/ted.2023.3312230
PMID:39130611
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11315457/
Abstract

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.

摘要

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。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/463cd5449d4d/nihms-1939939-f0014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/f98ebbda6d94/nihms-1939939-f0001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/42d39dec4e19/nihms-1939939-f0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/81c879f8091a/nihms-1939939-f0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/63026dd1611d/nihms-1939939-f0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/b1d6973ae597/nihms-1939939-f0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/9fe299222448/nihms-1939939-f0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/b48984716279/nihms-1939939-f0012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/39ce0209a324/nihms-1939939-f0013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/463cd5449d4d/nihms-1939939-f0014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/f98ebbda6d94/nihms-1939939-f0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/18e6a49e48d0/nihms-1939939-f0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/b296939670d4/nihms-1939939-f0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/1d1f805b962e/nihms-1939939-f0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/ea7ef4fc840c/nihms-1939939-f0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/ee49324e85ad/nihms-1939939-f0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/42d39dec4e19/nihms-1939939-f0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/81c879f8091a/nihms-1939939-f0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/63026dd1611d/nihms-1939939-f0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/b1d6973ae597/nihms-1939939-f0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/9fe299222448/nihms-1939939-f0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/b48984716279/nihms-1939939-f0012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/39ce0209a324/nihms-1939939-f0013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/169c/11315457/463cd5449d4d/nihms-1939939-f0014.jpg

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本文引用的文献

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THz Dynamic Nuclear Polarization NMR.太赫兹动态核极化核磁共振。
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Solid-state dynamic nuclear polarization at 263 GHz: spectrometer design and experimental results.263GHz 固态动态核极化：光谱仪设计与实验结果。
Phys Chem Chem Phys. 2010 Jun 14;12(22):5850-60. doi: 10.1039/c003685b. Epub 2010 May 7.
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