{"title":"Optimal Oscillation Region for A6 Magnetron via Mode Competition Analysis of Cross-Sectional Vector Electric Fields","authors":"Dong-Hyun Oh;Young-Wook Kim;Jung-Hoon Han","doi":"10.1109/TPS.2026.3729983","DOIUrl":null,"url":null,"abstract":"Relativistic magnetrons (RMs), a class of high-power microwave (HPM) sources, have attracted significant attention across various industrial applications. Under specific operating conditions, RMs experience mode competition, which leads to variations in critical performance metrics such as oscillation efficiency and rise time. While optimal operating conditions have been previously proposed for strapped magnetrons, applying these formulations to unstrapped magnetrons is challenging due to inherent differences in their operational characteristics. Accordingly, this article proposes a novel optimal operating condition applicable to the A6 magnetron—a representative unstrapped RM—based on the analysis of mode competition. The proposed mathematical formulation is designed by utilizing the frequencies and electric field components, including both magnitudes and phases, of the operating mode and the adjacent competing mode. Simulation results demonstrate that the proposed formulation yields a significantly higher oscillation efficiency and a shorter 90% rise time compared to the conventional formulation.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":"54 10","pages":"5086-5092"},"PeriodicalIF":1.6000,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Plasma Science","FirstCategoryId":"101","ListUrlMain":"https://ieeexplore.ieee.org/document/11705628/","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/9/23 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
引用次数: 0
Abstract
Relativistic magnetrons (RMs), a class of high-power microwave (HPM) sources, have attracted significant attention across various industrial applications. Under specific operating conditions, RMs experience mode competition, which leads to variations in critical performance metrics such as oscillation efficiency and rise time. While optimal operating conditions have been previously proposed for strapped magnetrons, applying these formulations to unstrapped magnetrons is challenging due to inherent differences in their operational characteristics. Accordingly, this article proposes a novel optimal operating condition applicable to the A6 magnetron—a representative unstrapped RM—based on the analysis of mode competition. The proposed mathematical formulation is designed by utilizing the frequencies and electric field components, including both magnitudes and phases, of the operating mode and the adjacent competing mode. Simulation results demonstrate that the proposed formulation yields a significantly higher oscillation efficiency and a shorter 90% rise time compared to the conventional formulation.
期刊介绍:
The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.