Multi-channel broadband amplitude-phase control component based on ALC function and its control method

Abstract

The present invention discloses a multi-channel broadband amplitude-phase control component based on ALC function and its control method, which includes a multi-channel amplitude-phase unit installed on the front of the base frame and a multi-channel amplitude-phase control unit on the back. The multi-channel amplitude-phase unit includes a first power splitter board, an amplifier board, a second power splitter board, and a phase-shifting and amplitude-modulating board connected in series in sequence. The input end of the first power splitter board serves as the input end of the entire control component and is externally connected to a signal source to input signals. By splitting and amplifying 1 input signal into 8 output signals, with each output having a digital controlled attenuator and a digital controlled phase shifter, and using switch switching, a frequency coverage of 1 to 4 GHz can be achieved. Moreover, the control component is internally equipped with a detector and a phase discriminator, which can monitor the real-time power and phase of the final stage of the power amplifier and automatically perform amplitude-phase control according to the preset amplitude-phase values of the upper computer. At the same time, each internal board can be independently disassembled and individually tested, greatly facilitating the debugging and maintenance of the later-stage staff.

Description

Technical Field

[0001] The present invention relates to the technical field of multi-channel broadband amplitude-phase control applications, and particularly to a multi-channel broadband amplitude-phase control component based on an ALC function and a control method thereof. Background Art

[0002] As an important part of the beamforming network, the amplitude-phase control component can provide electrical scanning parameters for the phased array antenna. There are mainly two main ways to achieve amplitude-phase control: active and passive. The active amplitude-phase control consists of a power divider, a phase shifter, and an attenuator. The key advantage of this network is the ability to achieve continuous beam scanning, which is mainly realized by numerically controlled phase shifters and numerically controlled attenuators.

[0003] However, the existing active amplitude-phase control technology still has the following disadvantages: 1. The numerically controlled phase shifter is affected by wavelength and size, and has a relatively narrow relative bandwidth in the low-frequency band; 2. The numerically controlled phase shifter and the numerically controlled attenuator will respectively bring additional attenuation and additional phase shift, which may cause the phased array antenna to fail to reach the preset shaping value, and once the environment changes, the previously stored calibration data may not match, and a complex calibration process needs to be carried out again. Therefore, the present invention proposes a multi-channel broadband amplitude-phase control component based on an ALC function and a control method thereof. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-channel broadband amplitude-phase control component based on an ALC function and a control method thereof. By splitting and amplifying 1 input signal into 8 outputs, each output is equipped with a numerically controlled attenuator and a numerically controlled phase shifter. Using switch switching, a frequency coverage of 1 to 4 GHz can be achieved, and the control component is internally provided with a detector and a phase discriminator, which can monitor the real-time power and phase of the final stage of the power amplifier, and automatically perform amplitude-phase control according to the preset amplitude-phase value of the upper computer. At the same time, each board inside can be independently disassembled and individually tested, which greatly facilitates the debugging and maintenance of the later staff.

[0005] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a multi-channel broadband amplitude-phase control component based on an ALC function, including a multi-channel amplitude-phase unit installed on the front of the base frame and a multi-channel amplitude-phase control unit installed on the back;

[0006] The multi-channel amplitude-phase unit includes a first power splitter board, an amplifier board, a second power splitter board, and a phase shift and amplitude modulation board connected in series in sequence. The input end of the first power splitter board serves as the input end of the entire control component and is externally connected to a signal source to input a signal. The output end of the phase shift and amplitude modulation board serves as the signal output end of the entire control component, and realizes the output of multiple amplitude-phase signals regulated by the multi-channel amplitude-phase control unit.

[0007] The multi-channel amplitude-phase control unit includes a detection and phase discrimination board and an FPGA control board arranged in series. The coupled output of the external coupler is connected to the input end of the detection and phase discrimination board. The coupler is used to provide the final-stage signal of the whole machine system to the multi-channel amplitude-phase control unit on the back of the multi-channel broadband amplitude-phase control component for monitoring;

[0008] The output end of the FPGA control board is electrically connected to the phase-shifting and amplitude-modulating board as the output end of the multi-channel amplitude-phase control unit, and is used to realize the adjustment and control of the corresponding amplitude-phase signals of the phase-shifting and amplitude-modulating board.

[0009] The present invention is further configured as follows: the first power splitter board is a 2-way power splitter board, the amplifier boards are two and are arranged in parallel, the second power splitter boards are two 4-way power splitter boards and are arranged in parallel, and the phase-shifting and amplitude-modulating boards are 4-way phase-shifting and amplitude-modulating boards and are two and are arranged in parallel, and 8-way amplitude-phase signals after being regulated by the multi-channel amplitude-phase control unit are output.

[0010] Through the above technical solution, 1-way signal can be output as 8-way amplitude-phase signals after passing through the first power splitter board, the amplifier boards, the second power splitter boards and the phase-shifting and amplitude-modulating boards.

[0011] The present invention is further configured as follows: the wiring between multiple boards in the multi-channel amplitude-phase unit installed on the front of the base frame is all connected by copper foils with the same width as the microstrip line, and there are partitions above the copper foils and between each channel for signal isolation.

[0012] Through the above technical solution, it can effectively prevent crosstalk between channels and affect the channel isolation effect.

[0013] The present invention is further configured as follows: both of the two amplifier boards are soldered on the silver-plated aluminum blocks and are powered by the feed-through capacitors built in the FPGA control board. Both of the two amplifier boards include a 2-stage low-noise amplifier and an amplitude equalization circuit.

[0014] Through the above technical solution, good grounding and heat dissipation performance can be ensured, and the control signal and the RF signal can be isolated. At the same time, the 2-stage low-noise amplifier can ensure that the whole control component has good noise figure and reduce the background noise after being cascaded with the amplifier board, while the amplitude equalization circuit can ensure the flatness of the whole module.

[0015] The present invention is further configured as follows: both of the two phase-shifting and amplitude-modulating boards are arranged as 6-layer boards and are connected to the FPGA control board inside the multi-channel amplitude-phase control unit by FPC cables.

[0016] Through the above technical solution, the overall size of the whole component is greatly compressed, the overall structure is made compact, the connection lines between boards are reduced, and thus it is convenient for later disassembly and maintenance.

[0017] The present invention is further configured that: both of the two phase-shifting amplitude-modulating plates each include a first 1-4 GHz RF switch, a phase-shifting sub-unit, a second 1-4 GHz RF switch, and a 31.75 dB digital controlled attenuator for 1-4 GHz, which are connected in series in sequence;

[0018] Among them, the phase-shifting sub-unit includes a 360° digital controlled phase shifter for 1-2 GHz and a 360° digital controlled phase shifter for 2-4 GHz, which are connected in parallel, so as to regulate the phase signal for 1-4 GHz.

[0019] Through the above technical solution, by using the first 1-4 GHz RF switch and the second 1-4 GHz RF switch connected at both ends of the phase-shifting sub-unit, the 360° digital controlled phase shifter for 1-2 GHz and the 360° digital controlled phase shifter for 2-4 GHz inside can be phase-shifted and regulated, so that the first 1-4 GHz RF switch and the second 1-4 GHz RF switch perform phase-shifting adjustment under the phase control signal output by the FPGA control board, so as to output the correct phase signal. At the same time, under the amplitude control signal output by the FPGA control board, the 31.75 dB digital controlled attenuator for 1-4 GHz can adjust the signal by a certain amplitude and output it.

[0020] The present invention is further configured that: the detection and phase discrimination board includes a microstrip power divider, a detection and phase discrimination unit, and an operational amplifier circuit connected in series in sequence;

[0021] Among them, the detection and phase discrimination unit includes a 1-4 GHz logarithmic detector and a 1-4 GHz phase discriminator connected in parallel, which perform detection and phase discrimination on multiple coupled signals.

[0022] Through the above technical solution, the input coupled signal is divided into two paths by the microstrip power divider and respectively undergoes detection and phase discrimination to be converted into voltage signals, and the real-time amplitude and phase signals are read out, and then after being processed by the operational amplifier circuit, they are transmitted to the FPGA control board through a cable.

[0023] The present invention is further configured that: the FPGA control board includes a control circuit, a voltage stabilizing circuit, and an AD conversion circuit connected thereto;

[0024] The FPGA control board outputs an amplitude control signal and a phase control signal to the phase-shifting amplitude-modulating plate through its output terminals respectively.

[0025] Through the above technical solution, the FPGA control board quickly processes the amplitude-phase signals after FPGA detection and phase discrimination, and can perform nanosecond-level parallel control on the digital controlled attenuator and the digital controlled phase shifter chips, so as to transmit the processed amplitude control signal and phase control signal to the phase-shifting amplitude-modulating plate.

[0026] On the other hand, a control method for a multi-channel broadband amplitude-phase control component based on the ALC function is provided, including a manual mode and an automatic mode:

[0027] The manual mode includes the following steps:

[0028] A1. First, the staff selects the manual mode through the host computer;

[0029] A2. The staff connects the antenna probe through a vector network analyzer to perform near-field and far-field scans, and summarizes the initial amplitude and phase of each power amplifier into the database;

[0030] A3. Then the host computer receives the amplitude and phase information reported after the scan;

[0031] A4. Then the host computer determines whether the current amplitude-phase value meets the requirements;

[0032] If so, traverse each frequency point reported by the scan and end the calibration;

[0033] If not, the host computer issues a phase shift and amplitude modulation instruction, and the phase shift and amplitude modulation module converts the external instruction into a TTL control frequency through the internal control unit and sends it to the front-phase shifter and attenuator chips for control. Then, after the change, rescan and report, and judge the corrected amplitude-phase value again until the requirements of the amplitude-phase value are met. Finally, traverse each frequency point reported by the scan and end the calibration;

[0034] In the above step A2 of the manual mode, it is necessary to continuously perform manual fine-tuning to align the position of the receiving antenna probe, and it is necessary to use a vector network analyzer to test the data and report it to the host computer, which is time-consuming and the process is relatively cumbersome;

[0035] The automatic mode includes the following steps:

[0036] B1. First, the staff selects the automatic mode through the host computer;

[0037] B2. Then the host computer inputs the signal source to the first power splitter board, which passes through the amplifier board, the second power splitter board and the phase shift and amplitude modulation board in sequence. At the same time, the coupler connected to the end of the solid-state power amplifier inputs the coupled signal into the detector and phase discriminator board. After passing through the microstrip power splitter board, it is divided into 2 paths to perform detection and phase discrimination respectively, which are converted into voltage signals, and the real-time amplitude and phase signals are read out. Then, after being processed by the operational amplifier circuit, they are transmitted to the FPGA control board through the cable;

[0038] B3. Then the FPGA control board transmits the amplitude and phase control signals processed for each path to the phase shift and amplitude modulation board;

[0039] B4. Subsequently, after receiving the amplitude-phase control signal, the phase-shift amplitude modulation board performs phase-shift control on the 360° numerically controlled phase shifter from 1 to 2 GHz and the 360° numerically controlled phase shifter from 2 to 4 GHz through the internal first 1 - 4 GHz RF switch and the second 1 - 4 GHz RF switch, and then controls the amplitude through the attenuator and inputs it to the host computer;

[0040] B5. Subsequently, the host computer pre-selects one of the signals received from each channel as a reference, and determines whether the amplitude-phase values of the remaining channels meet the requirements compared with the amplitude-phase value of the reference channel:

[0041] If so, traverse each frequency point and end the calibration;

[0042] If not, the host computer issues a phase-shift amplitude modulation instruction, and feeds back the difference between the amplitude-phase values of the remaining channels and the amplitude-phase value of the reference channel to the phase-shift amplitude modulation board. The phase-shift amplitude modulation board then automatically adjusts the amplitude and phase signals according to the difference, and compares the adjusted amplitude-phase value with the pre-set reference amplitude-phase value until the requirements are met, traverse each frequency point, and end the calibration.

[0043] All of the above processes are automatically completed by the cooperation of the internal software and hardware of the phase-shift amplitude modulation module, eliminating the process of manually building a platform for manual scanning in the manual mode and the process of data interaction between the vector network analyzer and the host computer, greatly shortening the calibration time.

[0044] The beneficial effects of the present invention are as follows:

[0045] The multi-channel broadband amplitude-phase control component and its control method based on the ALC function proposed by the present invention divide the 1-way input signal into 8-way outputs through power splitting and amplification, and each output is equipped with a numerically controlled attenuator and a numerically controlled phase shifter. By using switch switching, a frequency coverage of 1 - 4 GHz can be achieved, and the control component is built-in with a detector and a phase discriminator, which can monitor the real-time power and phase of the final stage of the power amplifier, and automatically perform amplitude-phase control according to the amplitude-phase values preset by the host computer. At the same time, each internal board can be independently disassembled and individually tested, greatly facilitating the debugging and maintenance of the later staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is the front schematic diagram of the multi-channel broadband amplitude-phase control component and its control method based on the ALC function of the present invention;

[0047] Figure 2 is the back schematic diagram of the multi-channel broadband amplitude-phase control component and its control method based on the ALC function of the present invention;

[0048] Figure 3 is the front schematic view of the multi-channel broadband amplitude-phase control component and its control method based on the ALC function of the present invention;

[0049] Figure 4 It is a schematic diagram of the back side of a multi-channel broadband amplitude and phase control component based on the ALC function and a control method thereof of the present invention;

[0050] Figure 5 The present invention is a calibration flow chart of a multi-channel broadband amplitude and phase control component and a control method thereof based on the ALC function. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0052] like Figures 1 - 5 As shown, a multi-channel broadband amplitude and phase control component based on the ALC function includes a multi-channel amplitude and phase unit installed on the front of the base frame and a multi-channel amplitude and phase control unit on the back;

[0053] The multi-channel amplitude-phase unit comprises a first power division board, an amplifier board, a second power division board and a phase-shift amplitude modulation board which are sequentially arranged in series, wherein the first power division board is a 2-way power division board, the amplifier board is two and arranged in parallel, the second power division board is two 4-way power division boards which are arranged in parallel, the phase-shift amplitude modulation board is a 4-way phase-shift amplitude modulation board which is two and arranged in parallel, and outputs 8-way amplitude-phase signals after being regulated by the multi-channel amplitude-phase control unit, and can output 8-way amplitude-phase signals after passing 1-way signal through the first power division board, the amplifier board, the second power division board and the phase-shift amplitude modulation board. signal, the input end of the first power splitter board is used as the input end of the entire control component, and the external signal source inputs the signal, the output end of the phase shift amplitude modulation board is used as the signal output end of the entire control component, and the multi-channel amplitude phase signal after the multi-channel amplitude phase control unit is output, and the wiring between the multiple boards in the multi-channel amplitude phase unit installed on the front of the base frame is connected by copper foil with the same width as the microstrip line, and there are partitions above the copper foil and between each channel for signal isolation, which can effectively prevent crosstalk between each channel and affect the channel isolation effect;

[0054] The two amplifier boards are both burned on the silver-plated aluminum block and powered by the through-core capacitor built into the FPGA control board. The two amplifier boards include a two-level low-noise amplifier and an amplitude balancing circuit, which can ensure good grounding and heat dissipation performance, and isolate the control signal from the RF signal. At the same time, the two-level low-noise amplifier can ensure that the entire control component has a good noise coefficient and reduce the background noise after cascading with the amplifier board, while the amplitude balancing circuit can ensure the overall flatness of the module;

[0055] Both of the phase-shifting amplitude-modulating boards are arranged as 6-layer boards and are connected to the FPGA control board inside the multi-channel amplitude-phase control unit by FPC cables, greatly compressing the overall size of the entire component, making the overall structure compact, reducing the connecting lines between the boards, and thus facilitating disassembly and maintenance in the later stage. Both of the phase-shifting amplitude-modulating boards each include a first 1-4 GHz RF switch, a phase-shifting sub-unit, a second 1-4 GHz RF switch, and a 1-4 GHz 31.75 dB digital controlled attenuator that are connected in series in sequence for 4 paths;

[0056] The phase-shifting sub-unit includes a 360° digital controlled phase shifter for 1-2 GHz and a 360° digital controlled phase shifter for 2-4 GHz that are arranged in parallel to regulate the phase signal for 1-4 GHz. The first 1-4 GHz RF switch and the second 1-4 GHz RF switch connected to both ends of the phase-shifting sub-unit can perform phase-shifting regulation on the 360° digital controlled phase shifter for 1-2 GHz and the 360° digital controlled phase shifter for 2-4 GHz inside. When the host computer switches to the 1-2 GHz frequency band, the switch inside the module switches to the 1-2 GHz phase shifter under the control of the FPGA control board; when the host computer switches to the 2-4 GHz frequency band, the switch inside the module switches to the 2-4 GHz phase shifter under the control of the FPGA control board to output a phase signal with a 1-4 GHz broadband. At the same time, under the amplitude control signal output by the FPGA control board, the 1-4 GHz 31.75 dB digital controlled attenuator can adjust the signal by a certain amplitude and output it;

[0057] The multi-channel amplitude-phase control unit includes a detection and phase discrimination board and an FPGA control board that are connected in series. The coupled output of the external coupler is connected to the input end of the detection and phase discrimination board. The coupler is used to provide the final-stage signal of the whole machine system to the multi-channel amplitude-phase control unit on the back of the multi-channel broadband amplitude-phase control component for monitoring. The output end of the FPGA control board is electrically connected to the phase-shifting amplitude-modulating board as the output end of the multi-channel amplitude-phase control unit to realize the adjustment and control of the corresponding amplitude-phase signal of the phase-shifting amplitude-modulating board;

[0058] The detection and phase discrimination board includes a microstrip power divider, a detection and phase discrimination unit, and an operational amplifier circuit that are connected in series in sequence. The detection and phase discrimination unit includes a 1-4 GHz logarithmic detector and a 1-4 GHz phase discriminator that are arranged in parallel. It performs detection and phase discrimination on multiple coupled signals, so that the input coupled signal is divided into 2 paths by the microstrip power divider and respectively undergoes detection and phase discrimination to be converted into voltage signals, and the real-time amplitude and phase signals are read out, and then processed by the operational amplifier circuit and transmitted to the FPGA control board through a cable;

[0059] The FPGA control board includes a control circuit, a voltage stabilization circuit and an AD conversion circuit connected thereto. The FPGA control board outputs an amplitude control signal and a phase control signal to the phase-shifting amplitude modulation board through the output terminals, so that the FPGA control board can quickly process the amplitude-phase signal after FPGA detection and phase discrimination, and can perform nanosecond-level parallel control on the digital control attenuator and the digital control phase shifter chip, and then transmit the processed amplitude control signal and phase control signal to the phase-shifting amplitude modulation board.

[0060] As Figures 1 - 5 shown, the control method of the multi-channel broadband amplitude-phase control component based on the ALC function includes a manual mode and an automatic mode:

[0061] The manual mode includes the following steps:

[0062] A1. First, the staff selects the manual mode through the upper computer;

[0063] A2. The staff connects the antenna probe through the vector network analyzer to perform near-field and far-field scans, and summarizes the initial amplitude and phase of each power amplifier into the database;

[0064] A3. Then the upper computer receives the amplitude and phase information reported after the scan;

[0065] A4. Then the upper computer judges whether the current amplitude-phase value meets the requirements:

[0066] If so, traverse each frequency point reported by the scan and end the calibration;

[0067] If not, the upper computer issues a phase-shifting amplitude modulation instruction, and the phase-shifting amplitude modulation module converts the external instruction into a TTL control electrical frequency through the internal control unit and sends it to the front-phase shifter and attenuator chips for control. Then, after the change, rescan and report, and judge the corrected amplitude-phase value again until the amplitude-phase value requirements are met. Finally, traverse each frequency point reported by the scan and end the calibration.

[0068] In the above step A2 of the manual mode, it is necessary to continuously perform manual fine-tuning to align the position of the receiving antenna probe, and it is necessary to use the vector network analyzer to test the data and report it to the upper computer, which takes a long time and the process is relatively cumbersome.

[0069] The automatic mode includes the following steps:

[0070] B1. First, the staff selects the automatic mode through the upper computer;

[0071] B2. Next, the host computer inputs the signal source to the first power splitter board, which sequentially passes through the amplifier board, the second power splitter board, and the phase shift and amplitude modulation board. At the same time, the coupler externally connected to the end of the solid-state power amplifier inputs the coupled signal into the detection and phase discrimination board. After being divided into two paths by the microstrip power splitter board, detection and phase discrimination are respectively performed and converted into voltage signals, and the real-time amplitude and phase signals are read out. Then, after being processed by the operational amplifier circuit, they are transmitted to the FPGA control board through the cable.

[0072] B3. Next, the FPGA control board transmits the amplitude and phase control signals for each path to the phase shift and amplitude modulation board.

[0073] B4. Next, after receiving the amplitude and phase control signals, the phase shift and amplitude modulation board performs phase shift control on the 360° numerically controlled phase shifter from 1 to 2 GHz and the 360° numerically controlled phase shifter from 2 to 4 GHz through the internal first 1 - 4 GHz RF switch and the second 1 - 4 GHz RF switch. Then, after controlling the amplitude through the attenuator, it is input to the host computer.

[0074] B5. Next, the host computer pre-selects one of the signals received from each path as a reference, and determines whether the amplitude and phase values of the remaining channels meet the requirements compared with the amplitude and phase values of the reference channel:

[0075] If so, traverse each frequency point and end the calibration;

[0076] If not, the host computer issues a phase shift and amplitude modulation instruction, and feeds back the difference between the amplitude and phase values of the remaining channels and the amplitude and phase values of the reference channel to the phase shift and amplitude modulation board. The phase shift and amplitude modulation board then automatically adjusts the amplitude and phase signals according to the difference, and compares the adjusted amplitude and phase values with the pre-set reference amplitude and phase values until the requirements are met. Traverse each frequency point and end the calibration.

[0077] The above process is automatically completed by the cooperation of the internal software and hardware of the phase shift and amplitude modulation module, eliminating the process of manually building a platform for manual scanning in the manual mode and the process of data interaction between the vector network analyzer and the host computer, greatly shortening the calibration time.

[0078] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A multi-channel broadband amplitude and phase control component based on ALC function, characterized by: It includes a multi-channel amplitude and phase unit installed on the front of the base frame and a multi-channel amplitude and phase control unit on the back; The multi-channel amplitude-phase unit comprises a first power division board, an amplifier board, a second power division board and a phase-shift amplitude modulation board which are sequentially connected in series, the input end of the first power division board serves as the input end of the entire control component and is connected to an external signal source for inputting a signal, the output end of the phase-shift amplitude modulation board serves as the signal output end of the entire control component, and realizes outputting a multi-channel amplitude-phase signal after being regulated by the multi-channel amplitude-phase control unit; The first power splitter board is a 2-way power splitter board, the amplifier board is two and arranged in parallel, the second power splitter board is two 4-way power splitters and arranged in parallel, the phase shift amplitude modulation board is a 4-way phase shift amplitude modulation board and two are arranged in parallel, and outputs 8-way amplitude and phase signals after being regulated by the multi-channel amplitude and phase control unit; The multi-channel amplitude and phase control unit comprises a detection and phase discrimination board and an FPGA control board arranged in series, and the coupling output of the external coupler is connected as the input end of the detection and phase discrimination board, and the coupler is used to provide the final stage signal of the whole system to the multi-channel amplitude and phase control unit on the back of the multi-channel broadband amplitude and phase control component for monitoring; The output end of the FPGA control board is electrically connected to the phase-shift amplitude modulation board as the output end of the multi-channel amplitude-phase control unit, so as to realize the regulation and control of the amplitude-phase signal corresponding to the phase-shift amplitude modulation board.

2. The multi-channel broadband amplitude and phase control component based on the ALC function according to claim 1, characterized in that: The wiring between multiple boards in the multi-channel amplitude and phase unit installed on the front of the base frame is connected by copper foil with the same width as the microstrip line, and there are partitions above the copper foil and between each channel for signal isolation.

3. The multi-channel broadband amplitude and phase control component based on ALC function according to claim 1, characterized in that: The two amplifier boards are both burned on the silver-plated aluminum block and powered by the through-core capacitor built into the FPGA control board. The two amplifier boards include a two-stage low-noise amplifier and an amplitude balancing circuit.

4. The multi-channel broadband amplitude and phase control component based on ALC function according to claim 1, characterized in that: The two phase-shift amplitude modulation boards are both 6-layer boards, and are connected to the FPGA control board inside the multi-channel amplitude and phase control unit by FPC cables.

5. The multi-channel broadband amplitude and phase control component based on the ALC function according to claim 4, characterized in that: The two phase-shift amplitude modulation boards each include a first 1-4 GHz radio frequency switch, a phase-shift subunit, a second 1-4 GHz radio frequency switch, and a 1-4 GHz 31.75 dB digitally controlled attenuator, which are sequentially arranged in series. The phase shift subunit includes a 1-2 GHz 360° digitally controlled phase shifter and a 2-4 GHz 360° digitally controlled phase shifter arranged in parallel to control the phase shift of the phase signal of 1-4 GHz.

6. The multi-channel broadband amplitude and phase control component based on ALC function according to claim 1, characterized in that: The detection and phase discrimination board comprises a microstrip power divider, a detection and phase discrimination unit and an operational amplifier circuit which are connected in series in sequence; The detection and phase discrimination unit comprises a 1-4 GHz logarithmic detector and a 1-4 GHz phase discrimination device which are arranged in parallel, and performs detection and phase discrimination on multi-channel coupled signals.

7. The multi-channel broadband amplitude and phase control component based on ALC function according to claim 1, characterized in that: The FPGA control board includes a control circuit and a voltage stabilizing circuit and an AD conversion circuit connected thereto; The FPGA control board outputs an amplitude control signal and a phase control signal to the phase shift amplitude modulation board through an output terminal.

8. A control method for a multi-channel broadband amplitude and phase control component based on an ALC function according to any one of claims 1 to 7, characterized in that: Including manual mode and automatic mode: The manual mode includes the following steps: A1. First, the staff selects the manual mode through the host computer; A2. The staff uses a vector network analyzer to connect the antenna probe to perform near- and far-field scanning, and summarizes the initial amplitude and phase of each power amplifier into the database; A3. Then the host computer receives the amplitude and phase information reported after scanning; A4. Then the host computer determines whether the current amplitude and phase values ​​meet the requirements: If yes, scan each reported frequency point and end the calibration; If not, the host computer sends a phase-shift amplitude modulation instruction, and the phase-shift amplitude modulation module converts the external instruction into a TTL control frequency through the internal control unit and sends it to the front phase shifter and attenuator chip for control. Then, it rescans and reports after the change, and judges the corrected amplitude and phase value again until the amplitude and phase value requirements are met. Finally, it traverses each frequency point reported by the scan and ends the calibration. The above manual mode A2 step requires continuous manual fine-tuning of the receiving antenna probe position alignment, and the vector network analyzer is required to test the data and report it to the host computer; The automatic mode includes the following steps: B1. First, the staff selects the automatic mode through the host computer; B2. Then the host computer inputs the signal source to the first power splitter board, passes through the amplifier board, the second power splitter board and the phase shift modulation board in sequence, and at the same time inputs the coupled signal into the detection and phase discrimination board through the coupler externally connected to the end of the solid-state power amplifier. After the microstrip power splitter board, it is divided into two paths for detection and phase discrimination respectively, and converted into voltage signals, and the real-time amplitude and phase signals are read out, and then processed by the operational amplifier circuit and transmitted to the FPGA control board through the cable; B3, then the FPGA control board will process the amplitude and phase control signals of each channel and transmit them to the phase shift modulation board; B4. After receiving the amplitude phase control signal, the phase shift modulation board performs phase shift control on the 1~2GHz 360° digital controlled phase shifter and the 2~4GHz 360° digital controlled phase shifter through the internal first 1~4GHz RF switch and the second 1~4GHz RF switch, and then controls the amplitude through the attenuator and inputs it into the host computer; B5. The host computer then selects one of the received signals as a reference, and compares the amplitude and phase values ​​of the remaining channels with those of the reference channel to determine whether they meet the requirements: If yes, then traverse each frequency point and end the calibration; If not, the host computer will send a phase-shift amplitude modulation instruction, and feed back the difference between the amplitude and phase values ​​of the remaining channels and the amplitude and phase values ​​of the reference channel to the phase-shift amplitude modulation board. The phase-shift amplitude modulation board will then automatically adjust the amplitude and phase signals according to the difference, and compare the adjusted amplitude and phase values ​​with the preset reference amplitude and phase values ​​until the requirements are met, traverse each frequency point, and end the calibration.

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