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Chinese Physics C> 2016, Vol. 40> Issue(1) : 017006 DOI: 10.1088/1674-1137/40/1/017006

Switching speed effect of phase shift keying in SLED for generating high power microwaves

  • 1.

     Department of Engineering Physics, Tsinghua University, Beijing 100084, China

  • 2.

     Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China

  • 3.

      Department of Engineering Physics, Tsinghua University, Beijing 100084, China

  • 4.

      Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China

  • SLAC energy doubler (SLED) type radio-frequency pulse compressors are widely used in large-scale particle accelerators for converting long-duration moderate-power input pulses into short-duration high-power output pulses. Phase shift keying (PSK) is one of the key components in SLED pulse compression systems. Performance of the PSK will influence the output characteristics of the SLED, such as the rise-time of the output pulse, maximal peak power gain, and energy efficiency. In this paper, a high power microwave source based on power combining and pulse compression of conventional klystrons is introduced. The effects of nonideal PSK with slow switching speed and PSK without power output during the switching process are investigated, and the experimental results with nonideal PSK agree well with the analytical results.
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  • References

    [1] Krile J, Kristiansen M, Energy Efficiency of High Power Microwave Systems, in Proc. of the 18th International Pulsed Power Conference (Chicago: IEEE, 2011), p.679
    [2] C. Chang, M. Shumail, S. Tantawi et al, Applied Physics Letters, 101(161102): 1611021-1611024 (2012)
    [3] T. Shintake, N. Akasaka, K. Kubo et al, C-band Main Linac RF System for e+e- Linear Collider of 0.5 to 1.0 TeV C.M. Energy, in Proceedings of EPAC'96, edited by C. Hill and M. vretenar (Geneva: IEEE, 1996), p.492
    [4] Nantista C D, Radio-Frequency Pulse Compression for Linear Accelerators, Ph.D. Thesis (Los Angeles: University of California, 1995)
    [5] Shi-lun Pei, Xiao-ping Li, Ou-zheng Xiao et al, CPC(HEP NP), 36(5): 456-463 (2012)
    [6] Ou-zheng Xiao, Feng-li Zhao, and Xiang He, CPC(HEP NP), 36(4): 376-379 (2012)
    [7] Z. D. Farkas and H. A. Hogg, SLED: a Method of Doubling SLAC's Energy, SLAC preprint, SLAC-PUB-1453, 1974

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Zheng-Feng Xiong, Cheng Cheng, Jian Yu, Huai-Bi Chen and Hui Ning. Switching speed effect of phase shift keying in SLED for generating high power microwaves[J]. Chinese Physics C, 2016, 40(1): 017006. doi: 10.1088/1674-1137/40/1/017006
Zheng-Feng Xiong, Cheng Cheng, Jian Yu, Huai-Bi Chen and Hui Ning. Switching speed effect of phase shift keying in SLED for generating high power microwaves[J]. Chinese Physics C, 2016, 40(1): 017006.  doi: 10.1088/1674-1137/40/1/017006 shu
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Received: 2015-04-09
Revised: 2015-06-19
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Switching speed effect of phase shift keying in SLED for generating high power microwaves

  • 1. Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • 2. Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China
  • 3.  Department of Engineering Physics, Tsinghua University, Beijing 100084, China
  • 4.  Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an 710024, China
  • Received Date: 2015-04-09
  • Accepted Date: 2015-06-19
  • Available Online: 2016-01-20

Abstract: SLAC energy doubler (SLED) type radio-frequency pulse compressors are widely used in large-scale particle accelerators for converting long-duration moderate-power input pulses into short-duration high-power output pulses. Phase shift keying (PSK) is one of the key components in SLED pulse compression systems. Performance of the PSK will influence the output characteristics of the SLED, such as the rise-time of the output pulse, maximal peak power gain, and energy efficiency. In this paper, a high power microwave source based on power combining and pulse compression of conventional klystrons is introduced. The effects of nonideal PSK with slow switching speed and PSK without power output during the switching process are investigated, and the experimental results with nonideal PSK agree well with the analytical results.

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