Design and simulation of a C-band SLED with mode converter

XIAO Ou-Zheng

doi:10.1088/1674-1137/38/11/117009

Chinese Physics C> 2014, Vol. 38> Issue(11) : 117009 DOI: 10.1088/1674-1137/38/11/117009

Design and simulation of a C-band SLED with mode converter

XIAO Ou-Zheng

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

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Abstract：
The transient response analysis of the SLED based on the equivalent circuit is described. Then, a C-band SLED using TE_0,1,15 mode cylindrical cavity with TE₁₀-TE₀₁ mode converter has been designed. According to the main RF parameters of the accelerator, the coupling coefficient is optimized to obtain the maximum multiplication factor. The key components of the pulse compressor include a 3 dB directional coupler, a TE₁₀-TE₀₁mode converter, and a cylindrical cavity, which are simulated and optimized using 3D electromagnetic field simulation software. In addition, the function defining the relation between the coupling factor and aperture size is derived by a mathematical fitting method.

References

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Shintake T, Akasaka N, Matsumoto H. Development of C-band RF Pulse Compression System for e+e- Linear Collider. Proceedings of the 1997 Particle Accelerator Conference. Canada: Vancouver, 1997. 455-457[2] Farkas Z D, Hogg H A, Loew G A et al. SLED: A Method of Doubling SLAC' Energy. SLAC-PUB-1453. June 1974[3] Pozar D M. Microwave Engineering. Third Edition. Beijing: Publishing House of Electronics Industry, 2006. 162-166[4] GU Mao-Zhang, ZHANG Ke-Qian. Microwave Technology. Beijing: Institute of Technology Press, 1997. 230-240[5] Kazakov S. New Compact TE10-TE01 Mode Converter and TE01-TE02 Window, ISG-8. June 2002, SLAC, USA[6] YANG Jun, LIU Hui, ZHANG Di et al. Fire Control Radar Technology, 2009, 38(3): 64-67[7] PEI Shi-Lun, PEI Guo-Xi, ZHAO Feng-Li et al. High Power Laser and Particle Beams, 2012, 24(2): 449-452 (in Chinese)

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XIAO Ou-Zheng. Design and simulation of a C-band SLED with mode converter[J]. Chinese Physics C, 2014, 38(11): 117009. doi: 10.1088/1674-1137/38/11/117009

XIAO Ou-Zheng. Design and simulation of a C-band SLED with mode converter[J]. Chinese Physics C, 2014, 38(11): 117009. doi: 10.1088/1674-1137/38/11/117009 shu

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Received: 2013-12-26
Revised: 1900-01-01

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通讯作者: 陈斌, [email protected]

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沈阳化工大学材料科学与工程学院沈阳 110142

Design and simulation of a C-band SLED with mode converter

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

Received Date: 2013-12-26

Accepted Date: 1900-01-01

Available Online: 2014-11-05

Abstract: The transient response analysis of the SLED based on the equivalent circuit is described. Then, a C-band SLED using TE_0,1,15 mode cylindrical cavity with TE₁₀-TE₀₁ mode converter has been designed. According to the main RF parameters of the accelerator, the coupling coefficient is optimized to obtain the maximum multiplication factor. The key components of the pulse compressor include a 3 dB directional coupler, a TE₁₀-TE₀₁mode converter, and a cylindrical cavity, which are simulated and optimized using 3D electromagnetic field simulation software. In addition, the function defining the relation between the coupling factor and aperture size is derived by a mathematical fitting method.

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Design and simulation of a C-band SLED with mode converter

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