Study of Disk-Loaded Waveguide Filled with Plasma |
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Authors: | Yong Zhang Yuanlong Mo Xiaolan Zhou Jianqing Li |
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Affiliation: | 1. Institute of High Energy Electronics, College of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, 610054, China
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Abstract: | Recently disk-loaded waveguide has been widely used in high-power traveling wave tubes (HPTWT). It has been shown in many experiments that the interaction efficiency and output power can be increased greatly by injecting plasma into the vacuum microwave device. Using field analysis, the dispersion characteristics and the interaction impedance of the disk-loaded waveguide filled with plasma are analyzed in a strong longitudinal magnetic field. In conclusion, the frequency of the TM01 mode increases as the density of the plasma increases. It also can be found when the plasma density increases to a large scale, the TM01 mode of the disk-loaded waveguide overlaps the TG mode, these two modes couple each other and form the new hybrid modes. |
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