An improved high-efficiency relativistic magnetron with a novel cathode endcap
Source abstract
Abstract
The relativistic magnetron has a series of advantages, such as high efficiency, compact structure, and tunability. In this paper, an improved modified high-efficiency relativistic magnetron with a novel cathode endcap is presented and investigated numerically. In simulation, high-power microwave of the transverse electromagnetic mode is generated with an average power of 1.56 GW, frequency of 1.593 GHz, and power efficiency of 75.8% when the voltage is 586 kV and the current is 3.59 kA. Compared with a conventional cathode endcap, the novel cathode endcap has two advantages. First, the efficiency is increased from 56.4% to 75.8%. Second, the maximum electric field is reduced from 1.4 MV/cm to 1.0 MV/cm. The simulation results verify the validity of the novel cathode endcap.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Gyrotron and Vacuum Electronics Research · Microwave Engineering and Waveguides · Pulsed Power Technology Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Advanced Interdisciplinary Studies, National University of Defense Technology , Changsha 410073, China
Funding
Hunan Provincial Foundation for Postgraduate · National Natural Science Foundation of China
References (22)
Show source-provided references
1. 2016 · 231
2. 2001
3. Mode conversion in a magnetron with axial extraction of radiation10.1109/tps.2006.875770 ↗
4. Experimental demonstration of relativistic magnetron with modified output configuration10.1063/1.2930684 ↗
5. RF mode switching in a relativistic magnetron with diffraction output10.1063/1.3529463 ↗
6. Three-dimensional particle-in-cell simulation study of a frequency tunable relativistic magnetron10.1109/tdei.2007.4286546 ↗
7. 70% of efficient relativistic magnetron with axial extract ion of radiation through a horn antenna10.1109/TPS.2010.2042823 ↗
8. Experimental demonstration of a high-efficiency relativistic magnetron with diffraction output with spherical cathode endcap10.1109/TPS.2016.2644625 ↗
9. An L-band relativistic magnetron with cathode priming10.1109/tps.2018.2881174 ↗
10. An efficient mode conversion configuration in relativistic magnetron with axial diffraction output10.1063/1.3211323 ↗
11. Modified magnetic field distribution in relativistic magnetron with diffraction output for compact operation10.1063/1.3551759 ↗
12. All cavity-magnetron axial extraction technique10.1109/tps.2012.2217758 ↗
13. Theoretical and numerical investigations of the novel relativistic magnetron using all-cavity output and semi-transparent cathode10.7498/aps.65.248401 ↗
14. Theoretical investigation of the fundamental mode frequency of A6 magnetron10.1063/1.3116202 ↗
15. A high-efficiency relativistic magnetron with the filled dielectric10.1063/1.4956460 ↗
16. Modeling and simulations of high-power microwave devices using the CHIPIC code10.1017/s0022377812000724 ↗
17. Theoretical investigation of the dielectric-filled relativistic magnetron10.1063/1.4939705 ↗
18. Design and experiment of a cross-shaped mode converter for high-power microwave applications10.1063/1.4850656 ↗
19. Tunable circularly-polarized turnstile-junction mode converter for high-power microwave10.1088/1674-1056/27/6/068401 ↗
20. CHIPIC: An efficient code for electromagnetic PIC modeling and simulation10.1109/TPS.2009.2026477 ↗
21. A modified relativistic magnetron with TEM output mode10.1063/1.4975006 ↗
22. A high-efficiency relativistic magnetron with a novel all-cavity extraction structure10.1063/1.5102151 ↗