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A radio frequency signal phase shifting method, device and power feeding system

A technology of radio frequency signals and intermediate frequency signals, which is applied in the field of signal processing, can solve the problems of expensive high-power phase shifters and slow phase shift change time, and achieve the effects of saving phase shifting costs, improving stability, and high phase shifting accuracy

Active Publication Date: 2021-09-03
国科中子医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the high-power phase shifter is expensive, and it mainly adjusts the phase shift by mechanically moving the regulator, and the phase shift change time is slow

Method used

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  • A radio frequency signal phase shifting method, device and power feeding system
  • A radio frequency signal phase shifting method, device and power feeding system
  • A radio frequency signal phase shifting method, device and power feeding system

Examples

Experimental program
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Effect test

Embodiment 1

[0061] Embodiment 1 of the present invention provides a radio frequency signal phase shifting method, referring to figure 1 , the method includes:

[0062] Step 101, receiving a first radio frequency signal to be phase-shifted and a shifted phase value of the first radio frequency signal;

[0063] Step 102, demodulating the first radio frequency signal to obtain the I value and Q value in the complex space; wherein, A is the amplitude value of the first radio frequency signal, is the initial phase value of the first radio frequency signal;

[0064] Such as figure 2 As shown, a sine wave It can be represented by a complex vector in an I, Q complex space, where the amplitude A of the sine wave is the modulus of the complex vector, and the phase of the sine wave It is the phase angle of the complex vector in the I, Q complex space. The projection of the complex vector on the I axis is the I component of the sine wave in the complex space, and the projection on the Q axi...

Embodiment 2

[0123] refer to Figure 5 , Embodiment 2 of the present invention provides a radio frequency signal phase shifting device, the device includes: a receiving module 51, a demodulation module 52, a phase shifting processing module 53 and a target signal generating module 54; wherein,

[0124] The receiving module 51 is configured to receive the first radio frequency signal to be phase-shifted and the shifted phase value of the first radio frequency signal;

[0125] The demodulation module 52 is used to demodulate the first radio frequency signal to obtain the I value and Q value in the complex space; wherein, A is the amplitude value of the first radio frequency signal, is the initial phase value of the first radio frequency signal;

[0126] The phase shifting processing module 53 is used to generate I' value and Q' value corresponding to the I value and Q value according to the moving phase value; wherein,

[0127] The target signal generating module 54 is configured to o...

Embodiment 3

[0155] Embodiment 3 of the present invention provides a power feeding system, including the radio frequency signal phase shifting device described in Embodiment 2.

[0156] Those skilled in the art can understand that all or part of the functions of the various methods in the foregoing implementation manners can be realized by means of hardware, or by means of computer programs. When all or part of the functions in the above embodiments are implemented by means of a computer program, the program can be stored in a computer-readable storage medium, and the storage medium can include: read-only memory, random access memory, magnetic disk, optical disk, hard disk, etc., through The computer executes the program to realize the above-mentioned functions. For example, the program is stored in the memory of the device, and when the processor executes the program in the memory, all or part of the above-mentioned functions can be realized. In addition, when all or part of the function...

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Abstract

An embodiment of the present invention provides a radio frequency signal phase shifting method, receiving the first radio frequency signal to be phase shifted and the shifted phase value of the first radio frequency signal; demodulating the first radio frequency signal to obtain the I in the complex space Value and Q value; Wherein, A is the amplitude value of the first radio frequency signal, is the initial phase value of the first radio frequency signal; Generate the I' value and Q corresponding to the I value and Q value according to the moving phase value 'value; where, according to the I'value and Q'value, the target radio frequency signal after phase shifting is obtained. Based on the technical solution provided by the embodiment of the present invention, the phase shift of each radio frequency signal in the power feeding system can be independently carried out by means of digital phase shift, and the phase shift at any angle from 0 to 360 degrees can be realized, and the operation is simple and fast. High precision and fast phase shift processing. The embodiment of the present invention also provides a radio frequency signal phase shifting device and a power feeding system.

Description

technical field [0001] The invention relates to the technical field of signal processing, in particular to a radio frequency signal phase shifting method, device and power feeding system. Background technique [0002] The acceleration cavity of the China Spallation Neutron Source Radio Frequency Quadrupole (RFQ) accelerator has two power feed ports, and two power feeds are required. In order to improve the synthesis efficiency of radio frequency signals in the accelerating cavity to obtain higher cavity pressure, and at the same time reduce the reflected power of each power feeding system, it is necessary to adjust the phase of each radio frequency signal entering the cavity through the power feeding system. [0003] At present, the power feeding of the accelerating chamber of the RFQ accelerator is mostly realized by installing a high-power power divider on the transmission line of the klystron power source. Part of the installation of high-power phase shifter to achieve p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/12H04B1/00H03H11/16
CPCH03H11/16H04B1/005H04L27/12
Inventor 荣林艳慕振成谢哲新周文中刘美飞万马良王博李健徐新安
Owner 国科中子医疗科技有限公司
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