High-order mode interaction structure for a W-band CW sheet beam extended interaction klystron
Source abstract
Abstract
To solve the problem of mode competition in high-order working modes, this paper presents a fast design method based on the TM31-2π mode for the dumbbell shaped extended interaction cavity. Based on the equivalent circuit theory, the high-frequency characteristics of the structure are studied. In addition, we propose a W-band continuous wave sheet beam extended interaction klystron high-frequency circuit. The circuit was driven by a 20 kV and 0.85 A sheet electron beam, with a 3.2 × 0.3 mm2 section. The beam was focused by a 0.8 T permanent magnet system. The high-frequency system adopts five dumbbell shaped five-gap cavities, and the output system adopts a symmetrical output waveguide. The 3D particle-in-cell simulation shows that more than 1.5 kW power can be obtained at an input power of 0.12 W, and the electron efficiency and gain are 9.2% and 41.2 dB, respectively.
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
Key Laboratory of Science and Technology on High Power Microwave Sources and Technologies, Aerospace Information Research Institute, Chinese Academy of Sciences 1 , Beijing 100190, China
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences 2 , Beijing 100049, China
Funding
National Natural Science Foundation of China · National MCF Energy R&D Program
References (17)
Show source-provided references
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