Multi-frequency-point multi-polarization parallel sampling phased-array antenna automatic calibration platform

Abstract

The invention discloses a multi-frequency-point multi-polarization parallel sampling phased-array antenna automatic calibration platform, and relates to the technical field of antennas, and the platform comprises a control center which is used for parameter modeling and test task configuration, parallel sampling strategy generation, and data storage and tracing; the FPGA hardware controller is used for generating synchronous trigger pulses and synchronously triggering the radio frequency switch matrix, the multi-path signal source, the six-axis mechanical arm, the multi-probe array module, the double-axis rotary table and the vector network analyzer VNA array; the radio frequency switch matrix is used for quickly switching multi-frequency-point multi-polarization signals; the multi-path signal source, the six-axis mechanical arm, the multi-probe array module, the double-axis rotary table and the vector network analyzer VNA array are used for synchronously collecting test data; the data processing module is used for receiving the sampling data, calculating a test index and carrying out closed-loop compensation and result verification; the test efficiency, the equipment utilization rate and the measurement precision are remarkably improved, and full-process automatic calibration and multi-dimensional data tracing are achieved.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and in particular to an automated calibration platform for phased array antennas with multi-frequency, multi-polarization parallel sampling. Background Technology

[0002] Phased array antenna calibration is a crucial step in ensuring beam pointing accuracy, gain stability, and polarization purity.

[0003] In existing technologies, phased array antenna calibration mainly adopts a point-by-point serial testing method, which sequentially switches frequencies, polarizations, and spatial angles for measurement. First, the traditional method is inefficient. The traditional single-probe solution requires the robotic arm to move four times to measure four points, or to move once and rotate the probe four times. The point-by-point switching results in excessive time consumption. Second, the traditional equipment has insufficient resource utilization. Key equipment such as vector network analyzers, probes, and turntables are idle for a long time during the testing process. In addition, the traditional method is difficult to adapt to the requirements of modern communication and radar systems with multiple frequency bands, multiple polarizations, and multiple wave positions, such as 5G-NR and satellite communication multi-frequency point multi-polarization scenarios. Finally, the traditional method has limited automation, relies on manual operation, is prone to introducing errors, and is difficult to achieve full-process standardization and traceability.

[0004] Therefore, an automated calibration platform for phased array antennas with multi-frequency, multi-polarization parallel sampling is provided to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an automated calibration platform for phased array antennas with multi-frequency and multi-polarization parallel sampling, which significantly improves testing efficiency, accuracy and equipment utilization, and meets the rapid and accurate calibration requirements of modern multi-band and multi-polarization communication and radar systems.

[0006] To achieve the above objectives, the present invention provides an automated calibration platform for a phased array antenna with multi-frequency and multi-polarization parallel sampling, including a multi-probe array module and a six-axis robotic arm. The multi-probe array module is fixedly mounted on the end effector of the six-axis robotic arm. The multi-probe array module contains 2-4 microwave probes for simultaneously acquiring radio frequency signals with different polarization directions at a single docking position. The control center is used for parameter modeling and test task configuration, generating parallel sampling strategies, storing data, and tracing. The FPGA hardware controller is used to generate synchronous trigger pulses and synchronously trigger the RF switch matrix, multiple signal sources and multi-probe array module to perform synchronous acquisition of RF signals. The trigger accuracy is set to 10ns. The radio frequency switch matrix is ​​used for fast switching of multi-frequency and multi-polarization signals, and the switching channel is set to 8×8 channels. A multi-channel signal source, a dual-axis turntable, and a vector network analyzer (VNA) array are used to synchronously acquire test data. The multi-channel signal source supports frequency bands of 3.5GHz, 26GHz, and 40GHz. The dual-axis turntable has a rotation range of 0-360°, a pitch range of ±90°, and a positioning accuracy of ±0.01°. The data processing module is used to receive sampled data, calculate test indicators based on the sampled data, and perform closed-loop compensation and result verification on the test indicators.

[0007] Preferably, when the control center performs parameter modeling and test task configuration, it specifically includes the following steps: Step 1: Input the parameters of the phased array antenna under test. The parameters of the phased array antenna under test include the frequency point. Polarization mode and wave position grid division results, frequency points Including frequency points Frequency and frequency frequency Set to 3.5GHz, frequency point Set to 26GHz, frequency point Set to 40 GHz, the polarization modes include horizontal polarization H, vertical polarization V, ±45° oblique polarization, left-hand circular polarization LHCP, and right-hand circular polarization RHCP; Step 2: Generate a multidimensional test matrix The number of test combinations is set to One, of which Indicates the polarization mode of the test signal. Indicates the test azimuth angle. Indicates the test pitch angle. Indicates the number of frequency points. Indicates the number of polarizations. Indicates the number of azimuth angles tested. This indicates the number of pitch angles tested.

[0008] Preferably, the control center generates a parallel sampling strategy, specifically including the following parallel sampling strategies: Strategy 1: Frequency parallelism. If multiple signal sources support multi-frequency output, an RF switch matrix can be used in conjunction with the multiple signal sources to switch or output multiple frequency points within the same time window. ; Strategy 2: Parallel polarization. Multiple microwave probes are set on the multi-probe array module. The test signal components under different polarization modes are collected synchronously by multiple microwave probes. After the six-axis robotic arm moves to the target test position and stabilizes, the multiple microwave probes in the multi-probe array module simultaneously sense the spatial electromagnetic field and obtain the horizontal polarization component and the vertical polarization component respectively. Strategy 3: Change the test position by moving a six-axis robotic arm, and synchronously acquire the polarization mode and frequency response of the test position using a vector network analyzer (VNA) array; Strategy 4: Use greedy algorithms and dynamic programming for task scheduling, setting the test target as the total test time. Minimize the constraints on device switching time, probe obstacle avoidance, and signal source switching delay, and output the optimal test sequence and device coordination timing diagram.

[0009] Preferably, the FPGA hardware controller is used to generate synchronization trigger pulses for hardware-level synchronization triggering, specifically including the following steps: Step 1: Transmit the synchronization trigger pulse to a multi-channel signal source, and output multi-frequency signals through the multi-channel signal source; Step 2: Transmit the synchronous trigger pulse to the RF switch matrix, and switch the channel to the test target polarization channel through the RF switch matrix; Step 3: Transmit the synchronous trigger pulse to the six-axis robotic arm and the multi-probe array module respectively. Move the multi-probe array module to the test target using the six-axis robotic arm. Use the multi-probe array module to carry multiple microwave probes to detect the phased array antenna under test. Step 4: Transmit the synchronization trigger pulse to the Vector Network Analyzer (VNA) array. The VNA array then initiates multi-channel synchronous sampling and extracts the sampled data.

[0010] Preferably, in step 4, the sampled data includes horizontal excitation and horizontal reception HH, horizontal excitation leaked to vertical reception HV, vertical excitation leaked to horizontal reception VH, and vertical excitation and vertical reception VV, and the extracted information includes amplitude, phase, cross-polarization isolation, and polarization axis ratio.

[0011] Preferably, closed-loop compensation and result verification are performed on the test indicators, specifically including the following steps: Step 1: The control center judges the pointing error as exceeding the limit. If the pointing error is greater than 0.05°, the amplitude and phase compensation algorithm is called to perform closed-loop compensation for the test index. Step II: Calculate the compensation coefficients through the data processing module. The compensation coefficients include amplitude compensation values ​​and phase compensation values. Write the amplitude compensation values ​​and phase compensation values ​​into the receiving component R and transmitting component T of the phased array antenna under test, respectively. Step 3: The FPGA hardware controller regenerates the synchronization trigger pulse and performs regression testing on the corresponding test positions to verify the results of the closed-loop compensation. Step IV: Generate a calibration report through the control center. The calibration report includes the original data, a comparison before and after compensation, and the qualification determination results.

[0012] Preferably, the test metrics calculated by the data processing module include the principal polarization component. Cross-polarization components Polarization axial ratio Beam pointing error, gain and sidelobe level, main polarization component Cross-polarization components and polarization axis ratio Set them to: ; ; ; in, This represents the transmission response of the primary polarization from excitation to reception. This represents the transmission response of cross-polarization from excitation to reception. This indicates the measured amplitude of the maximum polarization component. This represents the measured amplitude of the minimum polarization component.

[0013] Preferably, when the control center stores and traces data, it specifically includes the following steps: S1: Save the raw data, compensation coefficients, and test logs to the encrypted database in the control center; S2: Perform multi-dimensional backtracking retrieval based on test batch, test time, test frequency, and polarization method.

[0014] Therefore, the automated calibration platform for phased array antennas with multi-frequency point and multi-polarization parallel sampling described above has the following beneficial effects: (1) This solution significantly improves testing efficiency. Through multi-frequency point and multi-polarization parallel sampling technology, multi-channel radio frequency signals are synchronously acquired in a single test pose. By integrating a multi-probe array at the end of the robotic arm, the robotic arm can sense the response of multiple polarization directions or multiple frequency points at the same time as it moves to a position, just like opening its palm. This significantly shortens the testing time and improves efficiency by 50%-70%, greatly optimizing the calibration process of phased array antennas. (2) This solution achieves efficient use of equipment, maximizes the utilization rate of key resources such as vector network analyzers, probes, turntables and signal sources, effectively avoids equipment idleness, and improves overall testing efficiency; (3) This solution has high precision characteristics and supports the synchronous and accurate extraction of multiple parameters such as phase, amplitude and polarization axis ratio, ensuring the accuracy and reliability of calibration data; (4) This solution demonstrates excellent compatibility and can be widely applied to various technical systems such as 5G communication, satellite communication and radar systems, meeting the testing needs of modern multi-frequency and multi-polarization scenarios; (5) This solution has good scalability, supporting not only multi-probe array configuration, but also MIMO testing and OTA calibration, adapting to future technological development.

[0015] The method of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a tree diagram of an automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to the present invention. Detailed Implementation

[0017] The method of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Unless otherwise defined, the methodological or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0019] The terms "comprising" or "including" as used in this invention mean that the element preceding the term encompasses the element listed after the term, and do not exclude the possibility of encompassing other elements. Terms such as "inner," "outer," "upper," and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. In this invention, unless otherwise explicitly specified and limited, the term "attached" and similar terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0020] Example like Figure 1 As shown, the present invention provides an automated calibration platform for phased array antennas with multi-frequency and multi-polarization parallel sampling, including a multi-probe array module and a six-axis robotic arm. The multi-probe array module is fixedly installed on the end effector of the six-axis robotic arm. The multi-probe array module contains 2-4 microwave probes, which are used to simultaneously collect radio frequency signals with different polarization directions at a single docking position to achieve polarization parallel sampling.

[0021] The control center is used for parameter modeling and test task configuration, generating parallel sampling strategies, storing data, and tracing. When the control center performs parameter modeling and test task configuration, the specific steps include: Step 1: Input the parameters of the phased array antenna under test. The parameters of the phased array antenna under test include the frequency point. Polarization mode and wave position grid division results, frequency points Including frequency points Frequency and frequency frequency Set to 3.5GHz, frequency point Set to 26GHz, frequency point The frequency is set to 40 GHz, and the polarization modes include horizontal polarization H, vertical polarization V, ±45° oblique polarization, left-hand circular polarization LHCP and right-hand circular polarization RHCP. In this embodiment, the number of wave position grids is set to 156. Step 2: Generate a multidimensional test matrix The number of test combinations is set to One, of which Indicates the polarization mode of the test signal. Indicates the test azimuth angle. Indicates the test pitch angle. Indicates the number of frequency points. Indicates the number of polarizations. Indicates the number of azimuth angles tested. This indicates the number of pitch angles tested.

[0022] The control center generates parallel sampling strategies, specifically including the following parallel sampling strategies: Strategy 1: Frequency parallelism. If multiple signal sources support multi-frequency output, an RF switch matrix can be used in conjunction with the multiple signal sources to switch or output multiple frequency points within the same time window. ; Strategy 2: Parallel polarization. Multiple microwave probes are set on the multi-probe array module. The test signal components under different polarization modes are collected synchronously by multiple microwave probes. After the six-axis robotic arm moves to the target test position and stabilizes, the multiple microwave probes in the multi-probe array module simultaneously sense the spatial electromagnetic field and obtain the horizontal polarization component and the vertical polarization component respectively. This realizes synchronous sampling of different polarization states in the same spatial position and the same time window. By increasing the number of sampling channels at a single stop point, the hardware idle time after the robotic arm moves is maximized to achieve quasi-parallel sampling. Compared with the traditional point-by-point scanning method, although this solution still requires traversal in space, it achieves double-speed acquisition in the radio frequency interaction dimension, which significantly reduces the timing jitter error caused by the frequent start and stop of the robotic arm.

[0023] Strategy 3: The test position is changed by moving a six-axis robotic arm, and the polarization mode and frequency response at the test position are synchronously collected by a vector network analyzer (VNA) array. In this embodiment, the six-axis robotic arm moves 156 times, and the VNA array collects 3 frequency points × 2 polarizations × 4 port parameters each time. The total test time is... The testing time is 43 minutes, which is a significant improvement in efficiency compared to the traditional method of 150 minutes. Strategy 4: Use greedy algorithms and dynamic programming for task scheduling, setting the test target as the total test time. To minimize constraints on device switching time, probe obstacle avoidance, and signal source switching delay, the optimal test sequence and device coordination timing diagram are output. In this embodiment, the test sequence is optimized from 24,336 times to 6,084 effective samples through task scheduling optimization.

[0024] By combining serial traversal of spatial locations with parallel acquisition of radio frequency signals through channels, calibration efficiency is improved.

[0025] When the control center stores and traces data, it specifically includes the following steps: S1: Save the raw data, compensation coefficients, and test logs to the encrypted database in the control center; S2: Perform multi-dimensional backtracking retrieval based on test batch, test time, test frequency, and polarization method.

[0026] The FPGA hardware controller is used to generate synchronous trigger pulses and synchronously trigger the RF switch matrix, multiple signal sources and multi-probe array module to synchronously acquire RF signals. The trigger accuracy is set to 10ns to ensure that the timing of multiple devices is consistent during operation. The FPGA hardware controller is used to generate synchronization trigger pulses and perform hardware-level synchronization triggering, specifically including the following steps: Step 1: Transmit the synchronization trigger pulse to a multi-channel signal source, and output multi-frequency signals through the multi-channel signal source; Step 2: Transmit the synchronous trigger pulse to the RF switch matrix, and switch the channel to the test target polarization channel through the RF switch matrix; Step 3: Transmit the synchronous trigger pulse to the six-axis robotic arm and the multi-probe array module respectively. Move the multi-probe array module to the test target using the six-axis robotic arm. Use the multi-probe array module to carry multiple microwave probes to detect the phased array antenna under test. Step 4: Transmit the synchronization trigger pulse to the Vector Network Analyzer (VNA) array. The VNA array then initiates multi-channel synchronous sampling and extracts the sampled data.

[0027] In step 4, the sampled data includes horizontal excitation and horizontal reception (HH), horizontal excitation leaked to vertical reception (HV), vertical excitation leaked to horizontal reception (VH), and vertical excitation and vertical reception (VV). The extracted information includes amplitude, phase, cross-polarization isolation, and polarization axis ratio. In this embodiment, the cross-polarization isolation is greater than 28 dB.

[0028] The radio frequency switch matrix is ​​used for fast switching of multi-frequency and multi-polarization signals, and the switching channel is set to 8×8 channels. A multi-channel signal source, a dual-axis turntable, and a vector network analyzer (VNA) array are used to synchronously acquire test data. The multi-channel signal source supports frequency bands of 3.5GHz, 26GHz, and 40GHz, and the excitation frequency and polarization can be set independently. The dual-axis turntable has a rotation range of 0-360°, a pitch range of ±90°, and a positioning accuracy of ±0.01°, and supports sampling at any angle in space. The data processing module is used to receive sampled data, calculate test indicators based on the sampled data, and perform closed-loop compensation and result verification on the test indicators.

[0029] The test metrics calculated by the data processing module include the principal polarization component. Cross-polarization components Polarization axial ratio Beam pointing error, gain and sidelobe level, main polarization component Cross-polarization components and polarization axis ratio Set them to: ; ; ; in, This represents the transmission response of the primary polarization from excitation to reception. This represents the transmission response of cross-polarization from excitation to reception. This indicates the measured amplitude of the maximum polarization component. This represents the measured amplitude of the minimum polarization component. In this embodiment, the beam pointing error is no greater than 0.04°. In circular polarization mode, the polarization axis ratio is... No more than 1.2dB.

[0030] The closed-loop compensation and result verification of the test indicators specifically include the following steps: Step 1: The control center judges the pointing error as exceeding the limit. If the pointing error is greater than 0.05°, the amplitude and phase compensation algorithm is called to perform closed-loop compensation for the test index. Step II: Calculate the compensation coefficients through the data processing module. The compensation coefficients include amplitude compensation values ​​and phase compensation values. Write the amplitude compensation values ​​and phase compensation values ​​into the receiving component R and transmitting component T of the phased array antenna under test, respectively. Step 3: The FPGA hardware controller regenerates the synchronization trigger pulse and performs regression testing on the corresponding test positions to verify the results of the closed-loop compensation. Step IV: Generate a calibration report through the control center. The calibration report includes the original data, a comparison before and after compensation, and the pass / fail determination results. In this embodiment, the gain fluctuation before compensation is ±1.2dB, and the gain fluctuation after compensation is ±0.3dB.

[0031] Therefore, the present invention adopts the above-mentioned automated calibration platform for phased array antennas with multi-frequency and multi-polarization parallel sampling, which significantly improves the calibration efficiency of phased array antennas and achieves a high degree of coordination of equipment resources. At the same time, it supports full-process automated closed-loop compensation and multi-dimensional data traceability, which significantly improves test accuracy and system compatibility.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the method of the present invention and not to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the method of the present invention, and these modifications or equivalent substitutions should not cause the modified method to deviate from the spirit and scope of the method of the present invention.

Claims

1. An automated calibration platform for a phased array antenna with multi-frequency, multi-polarization parallel sampling, characterized in that, It includes a multi-probe array module and a six-axis robotic arm. The multi-probe array module is fixedly mounted on the end effector of the six-axis robotic arm. The multi-probe array module contains 2-4 microwave probes, which are used to simultaneously acquire radio frequency signals with different polarization directions at a single docking position. The control center is used for parameter modeling and test task configuration, generating parallel sampling strategies, storing data, and tracing. The FPGA hardware controller is used to generate synchronous trigger pulses and synchronously trigger the RF switch matrix, multiple signal sources and multi-probe array module to perform synchronous acquisition of RF signals. The trigger accuracy is set to 10ns. The radio frequency switch matrix is ​​used for fast switching of multi-frequency and multi-polarization signals, and the switching channel is set to 8×8 channels. A multi-channel signal source, a dual-axis turntable, and a vector network analyzer (VNA) array are used to synchronously acquire test data. The multi-channel signal source supports frequency bands of 3.5GHz, 26GHz, and 40GHz. The dual-axis turntable has a rotation range of 0-360°, a pitch range of ±90°, and a positioning accuracy of ±0.01°. The data processing module is used to receive sampled data, calculate test indicators based on the sampled data, and perform closed-loop compensation and result verification on the test indicators.

2. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 1, characterized in that, When the control center performs parameter modeling and test task configuration, the specific steps include: Step 1: Input the parameters of the phased array antenna under test. The parameters of the phased array antenna under test include the frequency point. Polarization mode and wave position grid division results, frequency points Including frequency points Frequency and frequency frequency Set to 3.5GHz, frequency point Set to 26GHz, frequency point Set to 40 GHz, the polarization modes include horizontal polarization H, vertical polarization V, ±45° oblique polarization, left-hand circular polarization LHCP, and right-hand circular polarization RHCP; Step 2: Generate a multidimensional test matrix The number of test combinations is set to One, of which Indicates the polarization mode of the test signal. Indicates the test azimuth angle. Indicates the test pitch angle. Indicates the number of frequency points. Indicates the number of polarizations. Indicates the number of azimuth angles tested. This indicates the number of pitch angles tested.

3. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 1, characterized in that, The control center generates parallel sampling strategies, specifically including the following parallel sampling strategies: Strategy 1: Frequency parallelism. If multiple signal sources support multi-frequency output, an RF switch matrix can be used in conjunction with the multiple signal sources to switch or output multiple frequency points within the same time window. ; Strategy 2: Parallel polarization. Multiple microwave probes are set on the multi-probe array module. The test signal components under different polarization modes are collected synchronously by multiple microwave probes. After the six-axis robotic arm moves to the target test position and stabilizes, the multiple microwave probes in the multi-probe array module simultaneously sense the spatial electromagnetic field and obtain the horizontal polarization component and the vertical polarization component respectively. Strategy 3: Change the test position by moving a six-axis robotic arm, and synchronously acquire the polarization mode and frequency response of the test position using a vector network analyzer (VNA) array; Strategy 4: Use greedy algorithms and dynamic programming for task scheduling, setting the test target as the total test time. Minimize the constraints on device switching time, probe obstacle avoidance, and signal source switching delay, and output the optimal test sequence and device coordination timing diagram.

4. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 1, characterized in that, The FPGA hardware controller is used to generate synchronization trigger pulses and perform hardware-level synchronization triggering, specifically including the following steps: Step 1: Transmit the synchronization trigger pulse to a multi-channel signal source, and output multi-frequency signals through the multi-channel signal source; Step 2: Transmit the synchronous trigger pulse to the RF switch matrix, and switch the channel to the test target polarization channel through the RF switch matrix; Step 3: Transmit the synchronous trigger pulse to the six-axis robotic arm and the multi-probe array module respectively. Move the multi-probe array module to the test target using the six-axis robotic arm. Use the multi-probe array module to carry multiple microwave probes to detect the phased array antenna under test. Step 4: Transmit the synchronization trigger pulse to the Vector Network Analyzer (VNA) array. The VNA array then initiates multi-channel synchronous sampling and extracts the sampled data.

5. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 4, characterized in that, In step 4, the sampled data includes horizontal excitation and horizontal reception (HH), horizontal excitation leaked to vertical reception (HV), vertical excitation leaked to horizontal reception (VH), and vertical excitation and vertical reception (VV). The extracted information includes amplitude, phase, cross-polarization isolation, and polarization axis ratio.

6. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 1, characterized in that, The closed-loop compensation and result verification of the test indicators specifically include the following steps: Step 1: The control center judges the pointing error as exceeding the limit. If the pointing error is greater than 0.05°, the amplitude and phase compensation algorithm is called to perform closed-loop compensation for the test index. Step II: Calculate the compensation coefficients through the data processing module. The compensation coefficients include amplitude compensation values ​​and phase compensation values. Write the amplitude compensation values ​​and phase compensation values ​​into the receiving component R and transmitting component T of the phased array antenna under test, respectively. Step 3: The FPGA hardware controller regenerates the synchronization trigger pulse and performs regression testing on the corresponding test positions to verify the results of the closed-loop compensation. Step IV: Generate a calibration report through the control center. The calibration report includes the original data, a comparison before and after compensation, and the qualification determination results.

7. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 1, characterized in that, The test metrics calculated by the data processing module include the principal polarization component. Cross-polarization components Polarization axial ratio Beam pointing error, gain and sidelobe level, main polarization component Cross-polarization components and polarization axis ratio Set them to: ； ； ； in, This represents the transmission response of the primary polarization from excitation to reception. This represents the transmission response of cross-polarization from excitation to reception. This indicates the measured amplitude of the maximum polarization component. This represents the measured amplitude of the minimum polarization component.

8. The automated calibration platform for a multi-frequency, multi-polarization parallel sampling phased array antenna according to claim 1, characterized in that, When the control center stores and traces data, it specifically includes the following steps: S1: Save the raw data, compensation coefficients, and test logs to the encrypted database in the control center; S2: Perform multi-dimensional backtracking retrieval based on test batch, test time, test frequency, and polarization method.

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