Digital algorithm research on radio frequency feedback in field programmable gate array

zhao yu-bin; zhao zhen-tang; yin cheng-ke; zhang tong-xuan

Volume 20 Issue 12

Dec. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(12): 0-

zhang yizhao, fu yanbiao, dong chenzhong, et al. Theoretical study on dielectronic recombination rate coefficient of Rb-like W37+ ions[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

zhao yu-bin, zhao zhen-tang, yin cheng-ke, et al. Digital algorithm research on radio frequency feedback in field programmable gate array[J]. High Power Laser and Particle Beams, 2008, 20.

zhang yizhao, fu yanbiao, dong chenzhong, et al. Theoretical study on dielectronic recombination rate coefficient of Rb-like W37+ ions[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

zhao yu-bin, zhao zhen-tang, yin cheng-ke, et al. Digital algorithm research on radio frequency feedback in field programmable gate array[J]. High Power Laser and Particle Beams, 2008, 20.

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Digital algorithm research on radio frequency feedback in field programmable gate array

1.
Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800,China;
2.
Graduate University of Chinese Academy of Sciences,Beijing 100049,China

Publish Date: 2008-12-15

Abstract

Abstract

This paper describes the basic theory of radio frequency feedback, and then presents a digital algorithm which adopts the rotation matrix to adjust the gain and phase of the radio frequency feedback loop in the field programmable gate array. Experimental results show the loop delay is 1.2 μs, and the band width of the superconductivity cavity changes from 3.3 kHz to 4.8 kHz after adding the radio frequency feedback. And the quality factor of the superconductivity cavity changes from 150 550 to 104 130．
- radio frequency feedback,
- superconductivity cavity,
- impendence,
- digital feedback algorithm,
- field programmable,
- gate array

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