journal article·2020-04-01Open access

Operating characteristics of a clamp klystron oscillator with a sloping cavity at W-band

M. Liu, Y. Li, E. Schamiloglu, J. Feng, C. Liu, M. I. Fuks, W. Jiang, P. Zhang

AIP Advances· Volume 10· Issue 4

Abstract

We present the design of an oscillator that is an evolution of our previously proposed “clamp klystron.” In this new embodiment, we utilize sloping cavities and increase the operating frequency to 94 GHz and 100 GHz (W-band). In this study, we utilized the UNIPIC particle-in-cell code. Simulations confirmed that this new oscillator with one sloping “buncher” cavity and one sloping “catcher” cavity with an inclination angle of 5° and shaped like a “clamp” produces 700 kW output power with an efficiency of 7.1% at 94 GHz when powered using an applied voltage U = 90 kV and beam current 110 A. When one sloping “buncher” cavity and one sloping “catcher” cavity are utilized with an inclination angle of 15°, the oscillator produces 270 kW output power with 3.0% efficiency at 100 GHz when powered using the same electron beam parameters. If two oscillators with sloping cavities along the z-axis are combined serially, then the output power can be as high as 800 kW with 8.0% efficiency at 100 GHz. This new oscillator design can be a promising approach to high power millimeter wave source designs at W-band and higher frequencies.
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Research context

OpenAlex topics: Gyrotron and Vacuum Electronics Research · Microwave Engineering and Waveguides · Insects and Parasite Interactions

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Physical Electronics and Devices of the Ministry of Education, Xi’an Jiaotong University 1 , 710049 Xi’an, China

School of Electronic Science and Engineering, Xi’an Jiaotong University 2 , Xi’an, Shaanxi 710049, China

School of Information Science and Engineering, Xi’an Jiaotong University 3 , Xi’an, Shaanxi 710049, China

Department of Electrical and Computer Engineering, University of New Mexico 4 , Albuquerque, New Mexico 87131-0001, USA

Beijing Vacuum Electronics Research Institute 5 , Beijing 100015, China

Extreme Energy-Density Research Institute Nagaoka, University of Technology 6 , Nagaoka, 940-2188 Niigata, Japan

School of Electronics Science and Engineering, University of Electronic Science and Technology of China 7 , Chengdu 610054, China

Funding

CEMEE · Surface Project of Shannxi Province · Foundation for Innovative Research Groups of the National Natural Science Foundation of China · Darpa · National Key Laboratory of Science and Technology on vacuum Electronics

References (25)

Show source-provided references
1. Acta Phys. Sin. · 2013 · 15 · 158503
2. IEEE Trans. Electron Devices · 2014 · 61 · 163010.1109/ted.2013.2295771 ↗
3. IEEE Trans. Plasma Sci. · 2011 · 39 · 84710.1109/tps.2010.2100410 ↗
4. Phys. Plasmas · 2010 · 17 · 11330510.1063/1.3511773 ↗
5. IEEE Trans. Electron Devices · 2014 · 35 · 105810.1109/led.2014.2344672 ↗
6. Phys. Plasmas · 2003 · 10 · 255910.1063/1.1565337 ↗
7. IEEE Trans. Electron Devices · 2017 · 64 · 385710.1109/ted.2017.2724581 ↗
8. 2010 · 1
9. IEEE Trans. Electron Devices · 2014 · 61 · 179510.1109/ted.2014.2309397 ↗
10. 2013 · 1
11. 2015 · 330
12. 2011
13. 2007 · 1049
14. 2007 · 179
15. J. Commun. Technol. Electron. · 2009 · 54 · 95210.1134/s1064226909080117 ↗
16. IEEE Trans. Plasma Sci. · 2013 · 42 · 9110.1109/tps.2013.2293133 ↗
17. IEEE Trans. Electron Devices B · 2005 · 52 · 89510.1109/ted.2005.845799 ↗
18. Appl. Phys. Lett. · 1997 · 71 · 372410.1063/1.120494 ↗
19. Phys. Plasmas · 2016 · 23 · 07311310.1063/1.4958810 ↗
20. Phys. Plasmas · 2018 · 25 · 07330510.1063/1.5034452 ↗
21. IEEE Trans. Plasma Sci. · 2018 · 46 · 90010.1109/tps.2018.2810209 ↗
22. Scanning · 1995 · 27 · 27010.1002/sca.4950170501 ↗
23. IEEE Trans. Plasma Sci. · 2009 · 37 · 203110.1109/tps.2009.2028428 ↗
24. Phys. Plasmas · 2010 · 17 · 07310710.1063/1.3454766 ↗
25. 2018