Chinese Physics C > 2016, Vol. 40 > Issue(7): 077004 DOI: 10.1088/1674-1137/40/7/077004

Design and evaluation of a downconverter based on MicroTCA.4

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Abstract：
Modern low-level RF (LLRF) control systems of particle accelerators are designed to achieve extremely precise field amplitude and phase regulation inside the accelerating cavities. The RF field signal is usually converted to an intermediate frequency (IF) before being sampled by ADC. As the down-conversion is an important procedure of digital signal processing in LLRF system, designing a high performance and broad band downconverter compatible with various accelerators is important. In this paper, the design of a downconverter based on MicroTCA and its performance evaluation on different frequency points are presented. The major design objective of this module is a wider operating frequency range and more flexibility in application.
- LLRF,
- downconverter,
- broad band,
- MicroTCA.4,
- RTM

References

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[4]	https://www.picmg.org/openstandards/microtca, retrieved 22th August 2011
[5]	U. Mavric, K. Czuba, F. Ludwig et al, Multi-channel down-conversion for MicroTCA.4 based control systems, in Proceedings of the 19th Real Time Conference, 2014 IEEE-NPSS
[6]	M. Hoffmann, F. Ludwig, H. Schlarb et al, Multichannel Downconverter for the Next Generation RF Field Control for VUV- and X-ray Free Electron Lasers, in Proceedings of the 22nd Particle Accelerator Conference, edited by C. Petit-Jean-Genaz (USA:JACow, 2007), p. 2071
[7]	U. Mavric, J. Branlard, B. Chase et al, A 96 channel receiver for the ILCTA LLRF system at fermilab, in Proceedings of the 22nd Particle Accelerator Conference, edited by C. Petit-Jean-Genaz (USA:JACow, 2007), p. 2271
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Nan Gan, Rong Liu, Xin-Peng Ma and Yun-Long Chi. Design and evaluation of a downconverter based on MicroTCA.4[J]. Chinese Physics C, 2016, 40(7): 077004. doi: 10.1088/1674-1137/40/7/077004

Nan Gan, Rong Liu, Xin-Peng Ma and Yun-Long Chi. Design and evaluation of a downconverter based on MicroTCA.4[J]. Chinese Physics C, 2016, 40(7): 077004. doi:10.1088/1674-1137/40/7/077004 shu

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Received: 2015-12-07
Revised: 2016-02-23

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Design and evaluation of a downconverter based on MicroTCA.4

Corresponding author:Nan Gan,

Received Date:2015-12-07

Accepted Date:2016-02-23

Available Online:2016-07-05

Abstract:Modern low-level RF (LLRF) control systems of particle accelerators are designed to achieve extremely precise field amplitude and phase regulation inside the accelerating cavities. The RF field signal is usually converted to an intermediate frequency (IF) before being sampled by ADC. As the down-conversion is an important procedure of digital signal processing in LLRF system, designing a high performance and broad band downconverter compatible with various accelerators is important. In this paper, the design of a downconverter based on MicroTCA and its performance evaluation on different frequency points are presented. The major design objective of this module is a wider operating frequency range and more flexibility in application.

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Design and evaluation of a downconverter based on MicroTCA.4

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通讯作者:陈斌, bchen63@163.com

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