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Highly efficient compact gigawatt‐level microwave source using relativistic electrons: radial relativistic magnetron
- Source :
- Electronics Letters. 56:556-559
- Publication Year :
- 2020
- Publisher :
- Institution of Engineering and Technology (IET), 2020.
-
Abstract
- The relativistic magnetron is one of the most attractive high-power microwave sources, due to its compactness with high efficiency. It can generate hundreds of megawatts of microwave power in the L- and S-bands. However, the efficiency of the magnetron is often limited due to the mode stability. In this Letter, three-dimensional particle-in-cell simulation suggests even further increase of total efficiency of the magnetron can be realised via mode stabilisation using a self-excited extended interaction in a collector region. A six-vaned radial relativistic magnetron with a single radial output port powered by 400 kV, 900 MW with an efficiency of ∼48%. This improvement is attributed to the mode locking of operating π-mode by a power-boosted TE315 mode excited in the extended cavity.
- Subjects :
- Physics
020208 electrical & electronic engineering
Mode (statistics)
Port (circuit theory)
02 engineering and technology
Electron
Physics::Classical Physics
Computational physics
Mode-locking
Excited state
Cavity magnetron
0202 electrical engineering, electronic engineering, information engineering
Cathode ray
Electrical and Electronic Engineering
Microwave
Subjects
Details
- ISSN :
- 1350911X and 00135194
- Volume :
- 56
- Database :
- OpenAIRE
- Journal :
- Electronics Letters
- Accession number :
- edsair.doi...........f82f141443c6dc0196313f39a9588179