A method for designing a variable-channel high-power cavity combiner

Yong-Tao Liu; Gui-Rong Huang; Lei Shang; Hong-Xiang Lin; Bai-Ting Du

doi:10.1088/1674-1137/40/8/087002

Chinese Physics C> 2016, Vol. 40> Issue(8) : 087002 DOI: 10.1088/1674-1137/40/8/087002

A method for designing a variable-channel high-power cavity combiner

1.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

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Abstract：
Cavity combiners have been put forward for high power combining due to their advantages of larger combining ability, variable input channels and less power loss. For a high power cavity combiner, it is better to keep the power loss ratio in a reasonable range, because large power loss would lead to strict requirements on the cooling system. A combiner with variable input channels is convenient for outputting different power levels according to practical demands. In this paper, a method for designing a variable-channel high-power cavity combiner is proposed, based on the relation between input and output coupling coefficients obtained by analyzing the equivalent circuit of the cavity combiner. This method can put the designed cavity combiner in a matching state and keep its power loss rate in a reasonable range as the number of input channels changes. As an example, a cavity combiner with 500 MHz and variable input channels from 16 to 64 is designed, and the simulation results show that our proposed method is feasible.
- cavity combiner ,
- variable channels ,
- equivalent circuit ,
- coupling coefficient

References

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Yong-Tao Liu, Gui-Rong Huang, Lei Shang, Hong-Xiang Lin and Bai-Ting Du. A method for designing a variable-channel high-power cavity combiner[J]. Chinese Physics C, 2016, 40(8): 087002. doi: 10.1088/1674-1137/40/8/087002

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Received: 2016-01-23
Revised: 2016-03-01

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Supported by National Natural Science Foundation of China (11079034)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

A method for designing a variable-channel high-power cavity combiner

Corresponding author: Yong-Tao Liu,

1. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China

Received Date: 2016-01-23

Accepted Date: 2016-03-01

Available Online: 2016-08-05

Fund Project: Supported by National Natural Science Foundation of China (11079034)

Abstract: Cavity combiners have been put forward for high power combining due to their advantages of larger combining ability, variable input channels and less power loss. For a high power cavity combiner, it is better to keep the power loss ratio in a reasonable range, because large power loss would lead to strict requirements on the cooling system. A combiner with variable input channels is convenient for outputting different power levels according to practical demands. In this paper, a method for designing a variable-channel high-power cavity combiner is proposed, based on the relation between input and output coupling coefficients obtained by analyzing the equivalent circuit of the cavity combiner. This method can put the designed cavity combiner in a matching state and keep its power loss rate in a reasonable range as the number of input channels changes. As an example, a cavity combiner with 500 MHz and variable input channels from 16 to 64 is designed, and the simulation results show that our proposed method is feasible.

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A method for designing a variable-channel high-power cavity combiner

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