Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (6): 146 doi: 10.1007/s41365-016-0144-0

• SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS • Previous Articles     Next Articles

An S-band solid-state radio frequency power amplifier used at Shanghai soft X-ray FEL facility

Hong-Li Ding 1,2, Ming-Hua Zhao 1, Cheng-Cheng Xiao1, Shao-Peng Zhong1, Jun-Qiang Zhang1   

  1. 1 Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Zhangjiang, Shanghai 201800, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
  • Contact: Ming-Hua Zhao E-mail:zhaomh@sinap.ac.cn
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Hong-Li Ding, Ming-Hua Zhao, Cheng-Cheng Xiao, Shao-Peng Zhong, Jun-Qiang Zhang. An S-band solid-state radio frequency power amplifier used at Shanghai soft X-ray FEL facility.Nuclear Science and Techniques, 2016, 27(6): 146     doi: 10.1007/s41365-016-0144-0
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Abstract:

In this paper, we present the general design methods and parameter measurements of a 1-kW solid-state radio frequency (RF) power amplifier at 2856 MHz, for the soft X-ray free electron laser facility. Three-stage amplification with a 4-way combination is used. An RF switch module is integrated with the solid-state RF power amplifier to convert the continuous wave (CW) signal into pulse signal, with adjustable pulse width. The power gain is measured at 57.7 dB at 60 dBm output. The RF phase noise, which is measured by the low-level RF system, is <0.015 degree (RMS), while the pulse frontier jitter is <5 ns.

Key words: S-band, Solid-state power amplifier, Phase stability