Scholarlink

Abstract <p>The problem of microwave generation in axial vircators has been studied using two different formulations: one that takes cathode–anode gap processes into account and one that does not. A comparison is also offered between the two main configurations: injecting a high-current electron beam into a drift tube versus into the resonator. It is shown that the mechanisms of generation differ significantly between these two formulations, leading to a stark contrast in the generation frequencies. The relationships between generation efficiency and factors like beam current, the distance between the cathode and anode, and the transparency of the anode mesh have been assessed. Notably, for each resonator geometry, there is an optimal level of anode mesh transparency that maximizes both generation efficiency and output power.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

The Effect of Processes in the Cathode–Anode Gap on the Generation Mechanism in Resonant and Non-Resonant Axial Vircators

  • 期刊论文

  • 发表日期：

    2025年7月9日

查看全文
  • E. A. Gurnevich,
  • P. V. Molchanov

摘要

Abstract

The problem of microwave generation in axial vircators has been studied using two different formulations: one that takes cathode–anode gap processes into account and one that does not. A comparison is also offered between the two main configurations: injecting a high-current electron beam into a drift tube versus into the resonator. It is shown that the mechanisms of generation differ significantly between these two formulations, leading to a stark contrast in the generation frequencies. The relationships between generation efficiency and factors like beam current, the distance between the cathode and anode, and the transparency of the anode mesh have been assessed. Notably, for each resonator geometry, there is an optimal level of anode mesh transparency that maximizes both generation efficiency and output power.