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)
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.
黄明光,朱丹,何俊,郝广凯,李海强,赵建东,李现霞. Ka波段宽频带高线性空间行波管研制[J]. 电子与信息学报, 2017, 39(11): 2777-2781.
HUANG Mingguang, ZHU Dan, HE Jun, HAO Guangkai, LI Haiqiang, ZHAO Jiandong, LI Xianxia. Development of Ka-band Broadband, High-linearity Space Traveling Wave Tube. JEIT, 2017, 39(11): 2777-2781.
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