A high-efficiency tunable relativistic magnetron with diffraction output
Source abstract
Abstract
In this paper, a high-efficiency tunable relativistic magnetron with diffraction output (HTRMDO) is presented and studied numerically. To increase the tuning bandwidth and power efficiency, the outer radius of the resonant cavity and the magnetic field are simultaneously varied. The simulation results show that the HTRMDO has a tuning range between 1.280 and 2.430 GHz, corresponding to a tuning bandwidth of 62.0% with a center frequency of 1.855 GHz. In the tuning range, the maximum power efficiency is 71.9% and the minimum power efficiency is 36.0%, which complies with the 3 dB principle. Moreover, its output mode remains constant as TE31. This is a record tuning bandwidth and power efficiency for the continuously tunable relativistic magnetron.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Gyrotron and Vacuum Electronics Research · Pulsed Power Technology Applications · Microwave Engineering and Waveguides
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
References (12)
Show source-provided references
1. High power microwave sources and applications
2. Historical developments and recent advances in high-power magnetron: A review10.1080/02564602.2021.2017802 ↗
3. Compact relativistic magnetron with omnidirectional radiation through a slotted waveguide array antenna10.1109/TED.2021.3059385 ↗
4. Frequency-agile relativistic magnetrons10.1117/12.218536 ↗
5. Simulation investigation of the 2 mode operating tunable relativistic magnetron with axial radiation10.7498/aps.60.128403 ↗
6. A frequency-agile relativistic magnetron with axial tuning10.1109/LED.2020.2984096 ↗
7. A cross-band tunable relativistic magnetron with all cavity axial extraction10.1109/TED.2023.3238387 ↗
8. An L -band relativistic magnetron with cathode priming10.1109/TPS.2018.2881174 ↗
9. Rapid start of oscillations in a magnetron with a ‘transparent’ cathode10.1103/PhysRevLett.95.205101 ↗
10. 3D ICEPIC simulations of a pulsed relativistic magnetron with transparent cathode: A comparative study
11. Theoretical Investigation of the fundamental mode frequency of A6 magnetron10.1063/1.3116202 ↗
12. CHIPIC: An efficient code for electromagnetic PIC modeling and simulation10.1109/TPS.2009.2026477 ↗