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| Development of Ka-band Broadband, High-linearity Space Traveling Wave Tube |
| HUANG Mingguang① ZHU Dan② HE Jun① HAO Guangkai② LI Haiqiang① ZHAO Jiandong① LI Xianxia① |
①(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
②(Shanghai Academy of Spaceflight Technology 804, Shanghai 201109, China) |
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Abstract In this paper, the design of Ka-band broadband, high-linearity and high-efficiency slow-wave system is proposed for Space Traveling Wave Tube (TWT). The dynamic phase-shifting technique is used to achieve low phase distortion and high efficiency. Based on this design, the Ka-band TWT is developed to realize wideband (25~27 ), low nonlinear distortion (non-linear phase shift ≤40°, AM / PM≤2.86°/dB, third order intermodulation≥10.39 dBc), high efficiency (total efficiency ≥51.7%). By the digital transmission system test, the error code pe is better than 10-6 in the case of C/N0 2.4 dB margin, it meets the satellite data transmission system for multi-channel parallel transmission program work requirements.
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Received: 24 November 2016
Published: 13 September 2017
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| Fund:The National Natural Science Foundation of China (61401430) |
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Corresponding Authors:
HE Jun
E-mail: skyboyhj@163.com
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