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| Effects of Distributed Loss Loading and Guiding Center Radius Modifying on Stability of Gyro-traveling Wave Tube |
| Peng Shu-yuan①② Wang Qiu-shi①② Zhang Zhao-chuan① Luo Ji-run① |
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
②(University of Chinese Academy of Sciences, Beijing 100049, China) |
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Abstract In this paper, the effect of distributed loss loading and guiding center radius modifying on the stability of a TE11 mode Gyro-Traveling Wave Tube (Gyro-TWT) is studied by multimode steady-state method. The result shows that the output power of the backward oscillation mode keeps weaken till zero as the conductance of the lossy material reduces, while the output power of the working mode grows significantly. As guiding center radius increases, loss loading needed to suppress oscillation completely is weaker, which makes heat easier to dissipate. Besides, the increment of guiding center radius also makes the output characteristic less sensitive to conductance variation.
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Received: 03 February 2015
Published: 26 June 2015
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Corresponding Authors:
Peng Shu-yuan
E-mail: pengshuyuan@163.com
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