Switching device and testing method of phased array antenna testing system

Abstract

The application discloses a switching device of a phased array antenna testing system and a testing method, relates to the field of phased array antenna testing of satellite communication, and discloses the switching device, which comprises a communication interface, a signal processing assembly and a darkroom testing system. The communication interface is configured with a communication protocol, the darkroom testing system and the phased array antenna follow the communication protocol, and the communication connection between the darkroom testing system and the phased array antenna system is realized through the communication interface. The signal processing assembly stores a testing file for testing the phased array antenna, controls the operation state of the darkroom testing system and switches the working state of the phased array antenna according to the testing file. Meanwhile, the probe of the darkroom testing system is controlled to collect the radio frequency signals of the phased array antenna under different working states according to the switched working state of the phased array antenna, the radio frequency signals are analyzed, and testing data are obtained. The application does not need to stop the work of the two-part system, reduces the testing waiting time, and further improves the testing efficiency.

Description

Technical Field

[0001] This invention relates to the field of phased array antenna testing for satellite communication, and more specifically, to a switching device and testing method for a phased array antenna testing system. Background Technology

[0002] Phased array antennas are an important component of satellite communication terminal products. In the research and development and production of phased array antennas, the near-field and far-field anechoic chamber testing system is the main means of laboratory testing of phased array antennas.

[0003] The anechoic chamber testing system mainly consists of a shielded anechoic chamber, a turntable subsystem, an RF subsystem, a system controller, and a signal acquisition and analysis subsystem. The general process for testing phased array antennas in both near and far fields using the anechoic chamber is as follows: According to the test instructions, the phased array antenna under test is installed on a mounting rack inside the shielded anechoic chamber. The antenna under test is equipped with a dedicated host computer for setting its operating status. The system controller of the anechoic chamber testing system configures the turntable subsystem to operate at a specific rate, driving the probe of the RF subsystem to acquire RF signals. These signals are then input to the signal acquisition and analysis subsystem via a transmission line for analysis, and the test results are recorded and saved.

[0004] In existing phased array antenna anechoic chamber testing systems, the phased array antenna system under test is independent of each other. When switching test items, both systems need to be stopped. Operators must change the installation position of the phased array antenna and configure the parameters of the two systems separately before the test can be restarted. This makes it impossible to automatically adjust the scanning speed of the turntable subsystem of the anechoic chamber testing system, adjust the installation direction of the phased array antenna, and automatically switch the working status of the anechoic chamber testing system and the phased array antenna under test, resulting in low testing efficiency. Summary of the Invention

[0005] To address the problem of low testing efficiency caused by the independent operation of existing anechoic chamber testing systems and the phased array antenna under test, this invention provides a switching device and testing method for phased array antenna testing systems. This switching device connects the anechoic chamber testing system and the phased array antenna system under test, enabling the two systems to operate in tandem. When switching test items, the device automatically controls the operating status and working status of either the anechoic chamber testing system or the phased array antenna based on the test files and communication protocols configured in its signal processing components and communication interface. This eliminates the need for both systems to stop operating, reducing testing waiting time and thus improving testing efficiency.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A first aspect of this application provides a switching device for a phased array antenna testing system, applied to the phased array antenna testing system, which includes an anechoic chamber testing system and a phased array antenna under test, wherein the anechoic chamber testing system, the switching device, and the phased array antenna are sequentially communicatively connected; the switching device includes:

[0008] A communication interface is provided, which is configured with a communication protocol. The anechoic chamber test system and the phased array antenna follow the communication protocol, and the communication connection between the anechoic chamber test system and the phased array antenna system is realized through the communication interface.

[0009] The signal processing component stores test files for testing the phased array antenna, and controls the operation of the anechoic chamber test system and switches the working state of the phased array antenna according to the test files.

[0010] Meanwhile, the probe of the anechoic chamber test system is controlled to collect radio frequency signals of the phased array antenna under different working states according to the switching working state of the phased array antenna, and the radio frequency signals are analyzed to obtain test data containing test results.

[0011] The signal processing component is also used to perform level conversion and protocol conversion on the signals received by the communication interface.

[0012] In one implementation, the communication interface includes a real-time interface, an RJ45 interface, an RS422 interface, an RS232 interface, and an I / O interface, wherein the I / O interface is a custom interface used to configure corresponding interface functions according to the testing requirements of the phased array antenna.

[0013] The anechoic chamber test system and the phased array antenna have interfaces adapted to the communication interface, and the anechoic chamber test system and the phased array antenna are connected to the communication interface of the adapter through corresponding interfaces to realize the communication connection between the anechoic chamber test system, the adapter and the phased array antenna; wherein the RS232 interface is also used to connect to the host computer to write the test file into the signal processing component.

[0014] In one embodiment, the adapter further includes a power adapter interface for converting AC voltage to DC voltage to provide power to the signal processing components.

[0015] In one embodiment, the anechoic chamber testing system modifies the test files in the signal processing component through the communication interface to expand the testing capabilities of the anechoic chamber testing system.

[0016] The phased array antenna modifies the test files in the signal processing component through the communication interface to expand the test items of the phased array antenna.

[0017] In one implementation, the signal processing component adjusts the frame format of the communication protocol according to the communication protocol frame format of different types of anechoic chamber test systems and phased array antennas.

[0018] In one implementation, the frame format of the communication protocol consists of, in sequence, a frame header, a frame length, a test command type, multiple test parameter information, a checksum, and a frame trailer.

[0019] In one implementation, the basic format of the test file includes a test number, a test item, and test parameters, wherein each test number corresponds to a test item, and a test item corresponds to one or more test parameters.

[0020] The anechoic chamber testing system queries the test sequence number through the communication interface and sequentially completes the tests and test parameters corresponding to the test sequence number.

[0021] A second aspect of this application provides a phased array antenna testing method, applied to a switching device of the phased array antenna testing system as described in the first aspect of this application, the method comprising:

[0022] The anechoic chamber testing system generates a test configuration table based on the basic format of the test files stored in the adapter.

[0023] The anechoic chamber testing system generates corresponding test parameters according to the test configuration table, and at the same time, the anechoic chamber testing system controls its own operating status according to the test configuration table.

[0024] The anechoic chamber testing system sends test commands for the current test parameters to the switching device, which then converts the test commands into the control protocol for the phased array antenna.

[0025] The phased array antenna switches its own working state according to the control protocol and generates a signal indicating that the working state has been switched, which is then sent to the switching device. After receiving the signal, the switching device sends a reply signal indicating that the working state has been switched to the correct state to the anechoic chamber test system.

[0026] Based on the received response signal, the anechoic chamber testing system controls the probe in the microwave anechoic chamber to acquire the radio frequency signal of the phased array antenna, and sends a real-time trigger signal to the vector network analyzer in the anechoic chamber testing system. The vector network analyzer then performs real-time analysis on the acquired radio frequency signal to obtain test data containing the test results.

[0027] In one implementation, after completing the test of a test item corresponding to a test number, the anechoic chamber testing system queries the address of the next test number in the test configuration table through the address bit of the communication interface, thereby enabling the testing of all test items in the test configuration table.

[0028] In one embodiment, the anechoic chamber testing system and the adapter configure the test parameters via commands or real-time pulse signals.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. This invention provides a switching device for a phased array antenna testing system. The switching device connects the anechoic chamber testing system and the phased array antenna system under test, enabling the two systems to work together. When switching test items, the device automatically controls the operating status and working status of the anechoic chamber testing system or the phased array antenna based on the test files and communication protocols configured in the signal processing components and communication interface of the switching device. This eliminates the need for both systems to stop working, reduces test waiting time, and thus improves test efficiency.

[0031] 2. The required test files only need to be configured once in the signal processing component of the adapter, which reduces the operational complexity of the anechoic chamber test system during testing and improves the test accuracy. After changing to different types of phased array antennas under test, there is no need to modify the test files again, which is beneficial for large-scale antenna testing. Furthermore, the anechoic chamber test system and the phased array antenna under test can expand the test files through the communication interface of the adapter to expand the test functions and test items and accommodate more test requirements. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0033] Figure 1 A schematic diagram of the structure of a switching device for a phased array antenna testing system provided in this application embodiment;

[0034] Figure 2 This is a schematic diagram of the connection between the anechoic chamber testing system, the adapter, and the phased array antenna under test provided in the embodiments of this application.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] 1. Signal processing board; 2. Rear panel; 3. Cover plate; 4. Left bracket; 5. Right bracket; 6. Front panel; 7. Base plate; 8. Mounting screw holes; 9. Power switch; 10. Communication interface. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0038] As described in the background section, an anechoic chamber testing system mainly consists of a shielded anechoic chamber, a turntable subsystem, an RF subsystem, a system controller, and a signal acquisition and analysis subsystem. The general process for testing phased array antennas in both near and far fields using an anechoic chamber is as follows: According to the test instructions, the phased array antenna under test is installed on a mounting rack inside the shielded anechoic chamber. The antenna under test is equipped with a dedicated host computer for setting its operating status. The system controller of the anechoic chamber testing system configures the turntable subsystem to operate at a specific rate, driving the probe of the RF subsystem to acquire RF signals. These signals are then input to the signal acquisition and analysis subsystem via a transmission line for analysis, and the test results are recorded and saved.

[0039] In existing phased array antenna anechoic chamber testing systems, the phased array antenna system under test is independent of each other. When switching test items, both systems need to be stopped. Operators must change the installation position of the phased array antenna and configure the parameters of the two systems separately before the test can be restarted. This makes it impossible to automatically adjust the scanning speed of the turntable subsystem of the anechoic chamber testing system, adjust the installation direction of the phased array antenna, and automatically switch the working status of the anechoic chamber testing system and the phased array antenna under test, resulting in low testing efficiency.

[0040] To address the shortcomings of the existing technology, this application provides a switching device for a phased array antenna testing system. This device is applied to the phased array antenna testing system, which includes an anechoic chamber testing system and the phased array antenna under test. Please refer to [reference needed]. Figure 1 , Figure 1 A schematic diagram of the structure of a switching device for a phased array antenna testing system provided in this application embodiment is shown below. Figure 1 As shown, the anechoic chamber testing system, the switching device, and the phased array antenna are sequentially connected in communication; the switching device includes:

[0041] A communication interface is provided, which is configured with a communication protocol. The anechoic chamber test system and the phased array antenna follow the communication protocol, and the communication connection between the anechoic chamber test system and the phased array antenna system is realized through the communication interface.

[0042] The signal processing component stores test files for testing the phased array antenna, and controls the operation of the anechoic chamber test system and switches the working state of the phased array antenna according to the test files.

[0043] Meanwhile, the probe of the anechoic chamber test system is controlled to collect the radio frequency signals of the phased array antenna under different working states according to the switching working state of the phased array antenna, and the radio frequency signals are analyzed to obtain test data containing test results.

[0044] The signal processing component is also used to perform level conversion and protocol conversion on the signals received by the communication interface.

[0045] It should be noted that, since the adapter is used to connect the anechoic chamber test system and the phased array antenna under test, it needs to be mounted on the rack of the anechoic chamber test system to facilitate the subsequent connection of communication cables and interfaces between the anechoic chamber test system and the phased array antenna. Furthermore, as... Figure 1 As shown, the adapter also includes a base plate, a cover plate, a signal processing board, a front panel, a rear panel, left and right brackets, and a power switch. The base plate, cover plate, front panel, rear panel, and left and right brackets together form the housing of the adapter, which is used to protect the electronic components inside the adapter and to mount the adapter to the test system rack through the mounting screw holes on the left and right brackets. The cover plate is connected to the left and right brackets by screws, which can provide a sealed cavity for the signal processing board and provide a heat dissipation surface for the signal processing board. The signal processing board is equipped with signal processing components and corresponding communication interfaces, including a central processing unit, a storage unit, and a level conversion unit. The central processing unit mainly consists of an STM32H743 microprocessor and related peripheral circuits, used to control and manage the operating status of each component of the adapter, performing protocol conversion and logic processing. The storage unit mainly consists of a W25Q256 Flash chip and related peripheral circuits, used to store the adapter's operating parameters, communication protocol files, and test configuration files. The level conversion unit mainly consists of a LAN8720A PHY chip, four AM26LV chips, two MAX3488 chips, two MAX3232 chips, and two SN74LVC chips, used to convert the interface levels of the adapter board's input or output to levels that the central processing unit can process. Furthermore, a power switch is used to turn the power on and off to start or stop the adapter; this is common knowledge and will not be described further.

[0046] The signal processing component is also used to perform level conversion and protocol conversion on the signals received by the communication interface. Teacher Zhang, could you please describe in detail how the level conversion and protocol conversion are implemented?

[0047] Since the central processing unit (CPU) operates at 3.3V, a level conversion chip is needed to convert the voltages of external communication interfaces to the CPU's operating voltage for external communication, and to convert the differential levels of the external communication interfaces to the CPU's TTL levels. Based on a pre-stored communication protocol, the CPU performs protocol matching on the signals received from the communication interfaces, extracts test items and parameters, converts the extracted information into control information for the antenna under test, frames it according to the antenna protocol configuration file, and sends it to the antenna under test through the communication interface connected to the antenna, thus completing the protocol conversion.

[0048] Furthermore, since there are various types of anechoic chamber testing systems and phased array antennas, such as planar testing, near-field testing, cylindrical testing, and compact field testing for anechoic chamber testing systems, and phased array antennas including testing of circular and rectangular aperture antennas, the adapter device has various universal communication interfaces to enable interconnection between these systems and the adapter. Specifically, in one embodiment, the communication interfaces include a real-time interface, an RJ45 interface, an RS422 interface, an RS232 interface, and an I / O interface. The I / O interface is a custom interface used to configure corresponding interface functions according to the testing requirements of the phased array antenna. The anechoic chamber testing system and the phased array antenna have interfaces adapted to the communication interfaces, and they are connected to the communication interface of the adapter device through corresponding interfaces to achieve communication connection between the anechoic chamber testing system, the adapter device, and the phased array antenna. The RS232 interface is also used to connect to a host computer to write the test file into the signal processing component.

[0049] In this embodiment, the real-time interface includes 24 address lines, 1 status switching line, 1 status response line, and 3 reserved I / O lines; the RJ45 interface supports a communication rate of 1000Mbps and supports UDP and TCP protocols; the RS422 interface includes RS422 interface 1 and RS422 interface 2, both of which have configurable baud rates and are used to connect to the anechoic chamber test system and the phased array antenna system under test, respectively; specifically, the adapter also includes a DC power interface and a power adapter interface. The power adapter interface is used to convert AC voltage to DC voltage to provide power to the signal processing components. For example, it can convert AC voltage to DC voltage to match the required range of the DC power interface, such as converting AC 220V voltage to DC 12V voltage, while the required voltage range of the DC power interface is 11.5V to 12.5V, and its current is not less than 1A; the RS232 interface has a configurable baud rate and is used to connect to the debugging computer; the custom I / O interface allows users to customize the pin functions according to their testing needs.

[0050] Furthermore, based on the interfaces described in the above embodiments, a single adapter only needs to provide one compatible interface for different anechoic chamber test systems or phased array antennas under test. For example, both the anechoic chamber test system and the antenna under test can be connected to an RJ45 interface for transmission using TCP or UDP, or an RS422 or RS232 interface can be used.

[0051] Specifically, the effects and built-in communication protocols of the aforementioned real-time interface, RJ45 interface, RS422 interface, RS232 interface, and I / O interface are common knowledge, so they will not be described in detail here.

[0052] It should be noted that, for some communication interfaces in the prior art described in the above embodiments, this adapter device defines a universal communication protocol. The anechoic chamber test system and the antenna under test can be interconnected and automated testing can be completed by following the communication protocol of the adapter device. The test system and the antenna under test can also be extended based on the communication protocol of the adapter device to be compatible with more test types and test items.

[0053] In actual testing, anechoic chamber testing systems are highly complex, involving parameter settings for turntable speed control, RF modulation, signal acquisition, and signal analysis. This complexity makes operating such systems inconvenient for large-scale testing. Therefore, in this embodiment, to simplify the operation of the anechoic chamber testing system, the adapter is equipped with a test file storage function. The operator only needs to inject the test file once using the host computer. The adapter stores the test file using the storage component in its signal processing unit. The adapter can automatically read the previously injected test file upon power-up. Using the test file also simplifies the control logic of the anechoic chamber testing system. The system only needs to poll the test file through the address lines in the real-time interface of the adapter to automatically switch the operating state of the antenna under test.

[0054] In summary, this embodiment provides an adapter for a phased array antenna testing system. This adapter connects the anechoic chamber testing system and the phased array antenna system under test, enabling the two systems to work together. When switching test items, based on the test files and communication protocols configured in the adapter's signal processing components and communication interface, the operating status and working status of the anechoic chamber testing system or the phased array antenna are automatically controlled without requiring both systems to stop operating, reducing test waiting time and thus improving test efficiency.

[0055] In one embodiment, the anechoic chamber testing system modifies the test files in the signal processing component through the communication interface to expand the testing functions of the anechoic chamber testing system; the phased array antenna modifies the test files in the signal processing component through the communication interface to expand the test items of the phased array antenna.

[0056] Specifically, the anechoic chamber testing system and the phased array antenna under test can add test items and test parameters to the test files through the communication interface according to their own testing needs, so as to expand the testing functions and test items and be compatible with more testing requirements.

[0057] In one embodiment, the signal processing component adjusts the frame format of the communication protocol according to the communication protocol frame format of different types of anechoic chamber test systems and phased array antennas.

[0058] Since the built-in communication protocols of phased array antennas produced by different companies or manufacturers are different, and the communication protocols of different types of anechoic chamber test systems are also different, in order to ensure the communication connection between the anechoic chamber test system, the adapter equipment and the phased array antenna, the signal processing component can adjust the frame format of the communication protocol according to the frame format of the communication protocol of different types of anechoic chamber test systems and phased array antennas, so as to be compatible with the test types and test items of different types of anechoic chamber test systems and phased array antennas.

[0059] Furthermore, the frame format of the communication protocol consists of, in sequence, a frame header, a frame length, a test command type, multiple test parameter information, a checksum, and a frame trailer.

[0060] The frame header and frame trailer consist of several bytes and are used to identify the start and end of a valid frame. The frame length indicates the number of bytes in a valid frame; this field can be used by the receiver to check whether the length of the received data is correct. The test command type identifies a specific command type, a specific test item, and the receiver's processing logic. The receiver responds differently to different command types, adjusts operating parameters for specific test items, and executes specific processing logic according to the command type. Multiple test parameter information is used to set the specific operating status of the device under test, including operating frequency, polarization, beam direction, and transmit / receive status. The checksum is used by the receiver to check whether the received data is correct.

[0061] Furthermore, the basic format of the test file includes a test number, a test item, and test parameters. Each test number corresponds to a test item, and each test item corresponds to one or more test parameters. The anechoic chamber testing system queries the test number through the communication interface and sequentially completes the tests of the test items and test parameters corresponding to the test number.

[0062] In this embodiment, common phased array antenna test items can be divided into reception test and transmission test. Test parameters are often used to control the working state of the phased array antenna under test. Common test parameters include reception / transmission frequency range, reception / transmission polarization, reception / transmission beam angle (including azimuth and elevation angle), reception / transmission attenuation, etc.

[0063] This application also provides a phased array antenna testing method, applied to the adapter of the phased array antenna testing system as described in the above embodiments, the method comprising:

[0064] The anechoic chamber testing system generates a test configuration table based on the basic format of the test files stored in the adapter.

[0065] The anechoic chamber testing system generates corresponding test parameters according to the test configuration table, and at the same time, the anechoic chamber testing system controls its own operating status according to the test configuration table.

[0066] The anechoic chamber testing system sends test commands for the current test parameters to the switching device, which then converts the test commands into the control protocol for the phased array antenna.

[0067] The phased array antenna switches its own working state according to the control protocol and generates a signal indicating that the working state has been switched, which is then sent to the switching device. After receiving the signal, the switching device sends a reply signal indicating that the working state has been switched to the correct state to the anechoic chamber test system.

[0068] Based on the received response signal, the anechoic chamber testing system controls the probe in the microwave anechoic chamber to acquire the radio frequency signal of the phased array antenna, and sends a real-time trigger signal to the vector network analyzer in the anechoic chamber testing system. The vector network analyzer then performs real-time analysis on the acquired radio frequency signal to obtain test data containing the test results.

[0069] Specifically, step 1, such as Figure 2 As shown, the operator follows Figure 2 The adapter is shown to connect the anechoic chamber test system and the phased array antenna system under test. The connection interface between the anechoic chamber test system and the adapter can be selected from one of the following: real-time interface, RJ45 interface, or RS422 interface. The connection interface between the phased array antenna system under test and the adapter uses an RS422 interface or an RS232 interface.

[0070] Step 2: The operator creates a test configuration table according to the test items listed in the test instructions and the format of the test file, and uses the anechoic chamber test system to control the host computer to inject the test configuration table into the device.

[0071] Step 3: The host computer controls the anechoic chamber test system, sets the test parameters according to the test configuration table, and sends the current test control command to this device. This device receives the signaling, converts it into the control protocol of the antenna under test, sends it to the antenna under test, and receives the switch-in signal of the antenna under test. It also sends a status reply signal to the anechoic chamber test system. Upon receiving the signal, the anechoic chamber test system controls the near and far field probes to acquire signals and sends a trigger signal to the vector network analyzer in the anechoic chamber test system. The vector network analyzer analyzes the acquired radio frequency signals to obtain test data containing the test results.

[0072] Step 4: After completing one test, the anechoic chamber testing system's host computer will automatically send the address of the next test in the test configuration table. Step 3 is repeated until all tests are completed. During the testing process, the host computer of the anechoic chamber testing system and the switching equipment set the test parameters via commands or real-time pulse signals, requiring no human intervention. Once one test is completed, the next test begins immediately without waiting time. When changing the antenna under test, there is no need to modify the test configuration table, which is beneficial for large-scale testing.

[0073] Step 5: After the test is completed, the anechoic chamber testing system will give a test completion prompt. The operator will then power off the device under test, the adapter, and the anechoic chamber testing system in sequence, organize the test data, and complete the test.

[0074] Furthermore, after completing the test of a test item corresponding to a test number, the anechoic chamber testing system queries the address of the next test number in the test configuration table through the address bit of the communication interface, thereby enabling the testing of all test items in the test configuration table.

[0075] Furthermore, the anechoic chamber testing system and the adapter configure the test parameters via commands or real-time pulse signals.

[0076] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A switching device for a phased array antenna testing system, applied to a phased array antenna testing system comprising an anechoic chamber testing system and a phased array antenna under test, characterized in that, The anechoic chamber testing system, the switching equipment, and the phased array antenna are sequentially connected in communication; the switching equipment includes: A communication interface is provided, which is configured with a communication protocol. The anechoic chamber test system and the phased array antenna follow the communication protocol, and the communication connection between the anechoic chamber test system and the phased array antenna system is realized through the communication interface. The signal processing component stores test files for testing the phased array antenna, and controls the operation of the anechoic chamber test system and switches the working state of the phased array antenna according to the test files. Meanwhile, the probe of the anechoic chamber test system is controlled to collect radio frequency signals of the phased array antenna under different working states according to the switching working state of the phased array antenna, and the radio frequency signals are analyzed to obtain test data containing test results. The signal processing component is also used to perform level conversion and protocol conversion on the signals received by the communication interface.

2. The adapter device for the phased array antenna testing system according to claim 1, characterized in that, The communication interface includes a real-time interface, an RJ45 interface, an RS422 interface, an RS232 interface, and an I / O interface. The I / O interface is a custom interface used to configure the corresponding interface functions according to the testing requirements of the phased array antenna. The anechoic chamber test system and the phased array antenna have interfaces adapted to the communication interface, and the anechoic chamber test system and the phased array antenna are connected to the communication interface of the adapter through corresponding interfaces to realize the communication connection between the anechoic chamber test system, the adapter and the phased array antenna; wherein the RS232 interface is also used to connect to the host computer to write the test file into the signal processing component.

3. The adapter device for the phased array antenna testing system according to claim 2, characterized in that, The adapter also includes a power adapter interface for converting AC voltage to DC voltage to provide power to the signal processing components.

4. The adapter device for the phased array antenna testing system according to claim 1, characterized in that, The anechoic chamber testing system modifies the test files in the signal processing component through the communication interface to expand the testing functions of the anechoic chamber testing system. The phased array antenna modifies the test files in the signal processing component through the communication interface to expand the test items of the phased array antenna.

5. The adapter device for the phased array antenna testing system according to claim 1, characterized in that, The signal processing component adjusts the frame format of the communication protocol according to the communication protocol frame format of different types of anechoic chamber test systems and phased array antennas.

6. The adapter device for the phased array antenna testing system according to claim 5, characterized in that, The frame format of the communication protocol consists of, in order: frame header, frame length, test command type, multiple test parameter information, checksum, and frame trailer.

7. The adapter device for the phased array antenna testing system according to claim 1, characterized in that, The basic format of the test file includes test number, test item and test parameter, wherein each test number corresponds to a test item and a test item corresponds to one or more test parameters; The anechoic chamber testing system queries the test sequence number through the communication interface and sequentially completes the tests and test parameters corresponding to the test sequence number.

8. A phased array antenna testing method, applied to a switching device including a phased array antenna testing system as described in any one of claims 1 to 7, characterized in that, The methods include: The anechoic chamber testing system generates a test configuration table based on the basic format of the test files stored in the adapter. The anechoic chamber testing system generates corresponding test parameters according to the test configuration table, and at the same time, the anechoic chamber testing system controls its own operating status according to the test configuration table. The anechoic chamber testing system sends test commands for the current test parameters to the switching device, which then converts the test commands into the control protocol for the phased array antenna. The phased array antenna switches its own working state according to the control protocol and generates a signal indicating that the working state has been switched, which is then sent to the switching device. After receiving the signal, the switching device sends a reply signal indicating that the working state has been switched to the correct state to the anechoic chamber test system. Based on the received response signal, the anechoic chamber testing system controls the probe in the microwave anechoic chamber to acquire the radio frequency signal of the phased array antenna, and sends a real-time trigger signal to the vector network analyzer in the anechoic chamber testing system. The vector network analyzer then performs real-time analysis on the acquired radio frequency signal to obtain test data containing the test results.

9. The phased array antenna testing method according to claim 8, characterized in that, After completing the test for a test item corresponding to a test number, the anechoic chamber testing system queries the address of the next test number in the test configuration table through the address bit of the communication interface, thereby enabling the testing of all test items in the test configuration table.

10. The phased array antenna testing method according to claim 9, characterized in that, The anechoic chamber testing system and the adapter device configure the test parameters via commands or real-time pulse signals.

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