Liquid crystal phased array antenna pressure coupling device, test system and method

Abstract

The application discloses a liquid crystal phased array antenna pressure coupling device, a test system and a method, a plurality of servo motor systems, a plurality of screw rod transmission systems, a plurality of torsion springback structures, a fixed plate and an antenna base are arranged in the second shell of the device, one end of the plurality of servo motor systems is fixedly arranged at the top of the second shell, and the other end is fixedly connected with the fixed plate; one end of the screw rod transmission system is in transmission connection with the output end of the servo motor system through the fixed plate, and the other end is fixedly arranged at the bottom of the second shell through the antenna base; one end of the torsion springback structure is fixedly connected with the built-in radio frequency connector through the fixed plate, the other end is close to the antenna base and is provided with a radio frequency probe and a plurality of pressure contacts; the lower surface of the antenna base is provided with the built-in radio frequency connector; and the two sides of the second shell are provided with the external radio frequency connector. The device provided by the application can accurately master the panel bonding pressure of the liquid crystal phased array antenna during mass production, and reduces the labor and time cost.

Description

Technical Field

[0001] This application relates to the field of pressure testing technology for liquid crystal phased array antennas, specifically to a pressure coupling device, testing system, and method for liquid crystal phased array antennas. Background Technology

[0002] With the rapid development of modern wireless communication, radar detection, and electronic warfare, the requirements for antenna systems in terms of beam scanning speed, flexibility, and reliability are increasing. Traditional mechanically scanned antennas, due to problems such as large inertia, slow response, and mechanical wear, are no longer able to meet the demands of high-speed and high-precision applications. Against this backdrop, phased array antenna technology has emerged and developed rapidly. It achieves rapid, inertia-free beam scanning by electronically controlling the phase of each array element, significantly improving the system's real-time performance and adaptability.

[0003] In recent years, liquid crystal materials, due to their ability to continuously tune their dielectric constant through an applied electric field, have been incorporated into phased array antenna design, forming the emerging technology of "liquid crystal phased array antennas." In liquid crystal phased array antennas, liquid crystal materials, as the primary material, offer advantages such as low power consumption, low cost, and ease of mass production. However, in actual production, the panel bonding process for liquid crystal phased array antennas presents a significant technical challenge, especially since the bonding pressure directly determines the overall performance of the antenna.

[0004] However, during the production process, due to variations in the grayscale technology of liquid crystals, different liquid crystal phased array antennas exhibit different performance curves under varying pressure conditions. Manual pressure testing is insufficient to accurately capture overall data and lacks a real-time positive feedback loop for pressure-data changes, resulting in inaccurate and incomplete data. This fails to provide effective data support for the antenna system, ultimately leading to poor consistency and difficulty in achieving performance targets for the liquid crystal phased array antenna system.

[0005] Furthermore, manual measurement can lead to complex performance and pressure function curves, increasing the labor and time costs of mass production of liquid crystal phased array antennas. This undoubtedly reduces their market competitiveness and weakens their cost advantage. Therefore, accurately determining the performance curve corresponding to the bonding pressure during mass production of liquid crystal phased array antennas has become a pressing problem for the industry. Summary of the Invention

[0006] Therefore, this application provides a pressure coupling device, testing system and method for liquid crystal phased array antennas to solve the problem that the existing technology cannot accurately control the panel bonding pressure when producing liquid crystal phased array antennas.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] In a first aspect, a liquid crystal phased array antenna pressure coupling device includes a first housing and a second housing. The first housing is fixedly disposed above the second housing. A control board is fixedly disposed inside the first housing. A display panel and a control panel are fixedly disposed on the front of the first housing. The display panel and the control panel are both electrically connected to the control board.

[0009] The second housing contains a plurality of servo motor systems, a plurality of lead screw drive systems, a plurality of torque rebound structures, a fixing plate, and an antenna base. The number of servo motor systems corresponds to the number of lead screw drive systems. The antenna base is fixedly located at the bottom of the second housing. One end of each of the servo motor systems is fixedly located at the top of the second housing and electrically connected to the control board, while the other end is fixedly connected to the fixing plate. One end of each lead screw drive system passes through the fixing plate and is connected to the output end of the servo motor systems, while the other end passes through the antenna base and is fixedly located at the bottom of the second housing. One end of each torque rebound structure passes through the fixing plate and is fixedly connected to a plurality of built-in RF connectors, while the other end of each torque rebound structure is close to the antenna base. Each torque rebound structure has an RF probe and a plurality of pressure contacts fixedly located at the end near the antenna base. The RF probe is electrically connected to the built-in RF connector at the other end of the torque rebound structure via a transmission cable inside the torque rebound structure.

[0010] The upper surface of the antenna base is used to place the liquid crystal phased array antenna, and a plurality of built-in RF connectors are fixedly installed on the lower surface of the antenna base; a plurality of external RF connectors are fixedly installed on the two sides of the second housing, and the plurality of external RF connectors are electrically connected to the plurality of built-in RF connectors through transmission cables; the front of the second housing can be opened or closed.

[0011] Preferably, four servo motor systems and four lead screw transmission systems are provided, and the four servo motor systems and four lead screw transmission systems are respectively fixedly installed at the four corners of the fixed plate.

[0012] Preferably, a plurality of the aforementioned torsion rebound structures are fixedly mounted on the mounting plate along the two diagonals of the liquid crystal phased array antenna.

[0013] Preferably, the torsional rebound structure has nine components.

[0014] Preferably, a pressure sensor is fixedly installed between the torsion rebound structure and the built-in radio frequency connector.

[0015] Preferably, the display panel is a liquid crystal display panel.

[0016] Preferably, both the built-in RF connector and the external RF connector are SMA connectors.

[0017] Secondly, a liquid crystal phased array antenna pressure testing system includes a vector network analyzer, multiple switch matrices, and a liquid crystal phased array antenna pressure coupling device. The liquid crystal phased array antenna pressure coupling device is communicatively connected to the input terminals of the multiple switch matrices via multiple external RF connectors. The output terminals of the multiple switch matrices are communicatively connected to the input terminals of the vector network analyzer. The output terminals of the vector network analyzer are communicatively connected to the control board of the liquid crystal phased array antenna pressure coupling device.

[0018] Thirdly, a pressure testing method for a liquid crystal phased array antenna, wherein the liquid crystal phased array antenna pressure testing method is applied to the liquid crystal phased array antenna pressure testing system, comprising:

[0019] Step 1: Place the liquid crystal phased array antenna on the antenna base of the liquid crystal phased array antenna pressure coupling device;

[0020] Step 2: The liquid crystal phased array antenna pressure coupling device controls multiple servo motor systems to transmit pressure to multiple lead screw drive systems through a control board;

[0021] Step 3: Multiple torsion spring structures begin to apply pressure to the liquid crystal phased array antenna under the pressure of multiple lead screw drive systems, and collect radio frequency signals through radio frequency probes;

[0022] Step 4: The acquired radio frequency signals are transmitted to multiple switch matrices through built-in and external radio frequency connectors;

[0023] Step 5: The multiple switch matrices transmit the acquired radio frequency signals to the vector network analyzer;

[0024] Step 6: The vector network analyzer determines whether the collected radio frequency signal is the optimal performance parameter; if yes, the process ends; if not, the determination result is returned to the liquid crystal phased array antenna pressure coupling device to re-determine the optimal performance parameter.

[0025] Compared with the prior art, this application has at least the following beneficial effects:

[0026] 1. This application provides a pressure coupling device for a liquid crystal phased array antenna, including a first housing and a second housing. The second housing contains multiple servo motor systems, multiple lead screw drive systems, multiple torque rebound structures, a fixing plate, and an antenna base. One end of each servo motor system is fixedly mounted on the top of the second housing, and the other end is fixedly connected to the fixing plate. One end of each lead screw drive system passes through the fixing plate and is connected to the output end of the servo motor systems, while the other end passes through the antenna base and is fixedly mounted on the bottom of the second housing. One end of each torque rebound structure passes through the fixing plate and is fixedly connected to multiple built-in RF connectors, while the other end of each torque rebound structure is close to the antenna base. Each torque rebound structure has an RF probe and multiple pressure contacts fixedly mounted at the end near the antenna base. Multiple built-in RF connectors are fixedly mounted on the lower surface of the antenna base. Multiple external RF connectors are fixedly mounted on both sides of the second housing, and these external RF connectors are electrically connected to the multiple built-in RF connectors via transmission cables. The liquid crystal phased array antenna pressure coupling device provided by this application can accurately control the panel bonding pressure during mass production of liquid crystal phased array antennas and can reduce the labor and time costs during mass production of liquid crystal phased array antennas.

[0027] 2. This application provides a pressure testing system for a liquid crystal phased array antenna, including a vector network analyzer, multiple switch matrices, and a pressure coupling device for the liquid crystal phased array antenna. The pressure coupling device is communicatively connected to the input terminals of the multiple switch matrices via multiple external RF connectors. The output terminals of the multiple switch matrices are communicatively connected to the input terminals of the vector network analyzer. The output terminal of the vector network analyzer is communicatively connected to the control board of the pressure coupling device. The liquid crystal phased array antenna pressure testing system provided by this application can form a positive feedback closed-loop testing system in real time based on pressure-data changes. This ensures that the panel bonding pressure data testing is both accurate and comprehensive, providing effective data support for the antenna system, resulting in better consistency and easier achievement of performance targets for the liquid crystal phased array antenna system. Attached Figure Description

[0028] To more intuitively illustrate the prior art and this application, exemplary drawings are provided below. It should be understood that the specific shapes and structures shown in the drawings should not generally be regarded as limiting conditions for implementing this application; for example, based on the technical concept disclosed in this application and the exemplary drawings, those skilled in the art are able to easily make conventional adjustments or further optimizations to the addition / reduction / classification, specific shapes, positional relationships, connection methods, size ratios, etc. of certain units (components).

[0029] Figure 1 This is a schematic diagram of the external structure of a liquid crystal phased array antenna pressure coupling device provided in Embodiment 1 of this application;

[0030] Figure 2This is a schematic diagram of the internal structure of a liquid crystal phased array antenna pressure coupling device provided in Embodiment 1 of this application;

[0031] Figure 3 This is a schematic diagram of the internal structure of a liquid crystal phased array antenna pressure coupling device after removing the housing, as provided in Embodiment 1 of this application;

[0032] Figure 4 This is a schematic diagram of the radio frequency probe and pressure contact structure at one end of the torsion rebound structure provided in Embodiment 1 of this application;

[0033] Figure 5 This is a schematic diagram of the connection between the radio frequency probe and the built-in radio frequency connector circuit provided in Embodiment 1 of this application;

[0034] Figure 6 A schematic diagram of the built-in radio frequency connector provided on the lower surface of the antenna base according to Embodiment 1 of this application;

[0035] Figure 7 This is a schematic diagram of the circuit connection between the built-in RF connector and the internal and external RF connectors provided in Embodiment 1 of this application;

[0036] Figure 8 A top view of a liquid crystal phased array antenna pressure coupling device provided in Embodiment 1 of this application;

[0037] Figure 9 This is a schematic diagram of the torsional rebound structure distribution provided in Embodiment 1 of this application;

[0038] Figure 10 This is a schematic diagram of a liquid crystal phased array antenna pressure testing system provided in Embodiment 2 of this application;

[0039] Figure 11 This is a flowchart of a pressure testing method for a liquid crystal phased array antenna provided in Embodiment 3 of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. First housing; 101. Display panel; 102. Control panel; 2. Second housing; 201. Servo motor system; 202. Screw drive system; 203. Torque rebound structure; 204. Fixing plate; 205. Antenna base; 206. Built-in RF connector; 207. RF probe; 208. Pressure contact; 209. External RF connector; 3. LCD phased array antenna; 4. Transmission cable. Detailed Implementation

[0042] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] In the description of this application: unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," etc., in this application are intended to distinguish the objects referred to and do not have any special meaning in terms of technical connotation (e.g., they should not be construed as an emphasis on importance or order). Expressions such as "including," "comprising," and "having" also mean "not limited to" (certain units, components, materials, steps, etc.).

[0044] The terms used in this application, such as "upper," "lower," "left," "right," and "middle," are generally used to indicate the general relative positional relationship for the purpose of intuitive understanding by referring to the accompanying drawings, and are not absolute limitations on the positional relationship in the actual product.

[0045] Example 1

[0046] Please see Figure 1 This embodiment provides a liquid crystal phased array antenna pressure coupling device, including a first housing 1 and a second housing 2. The first housing 1 is fixedly disposed above the second housing 2. A control board is fixedly disposed inside the first housing 1. A display panel 101 and a control panel 102 are fixedly disposed on the front of the first housing 1. The display panel 101 and the control panel 102 are both electrically connected to the control board. The display panel 101 is a liquid crystal display panel.

[0047] Please see Figure 2 and Figure 3 The second housing 2 contains a plurality of servo motor systems 201, a plurality of lead screw drive systems 202, a plurality of torque rebound structures 203, a fixing plate 204, and an antenna base 205. The number of servo motor systems 201 corresponds to the number of lead screw drive systems 202. The antenna base 205 is fixedly installed at the bottom of the second housing 2. One end of each servo motor system 201 is fixedly installed at the top of the second housing 2 and electrically connected to the control board, while the other end is fixedly connected to the fixing plate 204. One end of each lead screw drive system 202 passes through the fixing plate 204 and is connected to the output end of the servo motor system 201, while the other end passes through the antenna base 205 and is fixedly installed at the bottom of the second housing 2. One end of each torque rebound structure 203 passes through the fixing plate 204 and is fixedly connected to a plurality of built-in RF connectors 206, while the other end of each torque rebound structure 203 is close to the antenna base 205. At the end of the torque rebound structure 203 near the antenna base 205, an RF probe 207 and a plurality of pressure contacts 208 are fixedly installed (e.g., Figure 4 As shown), the RF probe 207 is electrically connected to the built-in RF connector 206 at the other end via the transmission cable 4 inside the torsion spring structure 203 (as shown). Figure 5 (As shown).

[0048] Please see Figure 6The upper surface of the antenna base 205 is used to place the liquid crystal phased array antenna 3, and multiple built-in RF connectors 206 are fixedly installed on the lower surface of the antenna base 205; multiple external RF connectors 209 are fixedly installed on the two sides of the second housing 2, and the multiple external RF connectors 209 are electrically connected to the multiple built-in RF connectors 206 through transmission cables 4 (e.g., Figure 7 As shown), preferably, both the built-in RF connector 206 and the external RF connector 209 are SMA connectors; the front of the second housing 2 can be opened or closed, so that the liquid crystal phased array antenna 3 can be placed into or removed from the liquid crystal phased array antenna pressure coupling device.

[0049] Please see Figure 8 In the liquid crystal phased array antenna pressure coupling device provided in this embodiment, four servo motor systems 201 and four lead screw drive systems 202 are provided. The four servo motor systems 201 and four lead screw drive systems 202 are respectively fixedly installed at the four corners of the fixed plate 204.

[0050] Please see Figure 9 In the liquid crystal phased array antenna pressure coupling device provided in this embodiment, multiple torsion rebound structures 203 are fixedly mounted on the fixing plate 204 along the two diagonals of the liquid crystal phased array antenna 3; specifically, nine torsion rebound structures 203 are provided. It should be noted that the number of torsion rebound structures 203 can be adjusted according to specific circumstances, as long as the surface of the liquid crystal phased array antenna 3 can be subjected to pressure.

[0051] In the liquid crystal phased array antenna pressure coupling device provided in this embodiment, a pressure sensor is fixedly installed between the torsion rebound structure 203 and the built-in radio frequency connector 206 for the initial initialization of the device. For example, the pressure sensor between the torsion rebound structure 203 and the built-in radio frequency connector 206 can ensure that the initial pressure of multiple torsion rebound structures 203 is consistent.

[0052] In this embodiment, a liquid crystal phased array antenna pressure coupling device is used. First, the liquid crystal phased array antenna 3 is placed inside the device and its positioning is completed. When the device is turned on, the four servo motor systems 201 built into the device will start to rotate. The four servo motor systems 201 are controlled independently to adjust the pressure in different directions and angles. Under the action of the lead screw transmission system 202, the motor will start to move slowly downward. At this time, due to the reverse force of the torque rebound structure 203, the liquid crystal phased array antenna panel will gradually be subjected to force. The radio frequency signal and pressure signal are collected through the radio frequency probe 207 and the pressure contact 208. Then, the pressure signal is transmitted to the control board, and the radio frequency signal is transmitted to the switch matrix through the built-in radio frequency connector 206 and the external radio frequency connector 209, and finally reaches the external vector network analyzer for display.

[0053] It should be noted that in this embodiment, both ends of the torsion rebound structure 203 are provided with built-in radio frequency connectors 206. The built-in radio frequency connector 206 at one end is used to input radio frequency signals. The input radio frequency signals are fed back to the built-in radio frequency connector 206 at the other end through the liquid crystal phased array antenna 3 and then output to the external vector network analyzer, thereby forming a complete loop.

[0054] This embodiment provides a pressure coupling device for liquid crystal phased array antennas. This device combines pressure and radio frequency signals at different locations in real time, clearly demonstrating the performance of different elements of the liquid crystal phased array antenna under different pressures during the manufacturing bonding process. It then selects the pressure value optimal for liquid crystal performance. Only after the bonding pressure is calibrated by this device will the liquid crystal performance of each element reach its maximum value, thus achieving precise beam control of the liquid crystal phased array antenna. Simultaneously, this device significantly optimizes the manufacturing process of liquid crystal phased array antennas and greatly reduces their production costs.

[0055] In summary, the liquid crystal phased array antenna pressure coupling device provided in this embodiment can accurately control the panel bonding pressure during the mass production of liquid crystal phased array antennas, and can reduce the manpower and time costs during the mass production of liquid crystal phased array antennas.

[0056] Example 2

[0057] Please see Figure 10This embodiment provides a liquid crystal phased array antenna pressure testing system, including a vector network analyzer, multiple switch matrices, and the liquid crystal phased array antenna pressure coupling device provided in Embodiment 1. The liquid crystal phased array antenna pressure coupling device is communicatively connected to the input terminals of multiple switch matrices through multiple external RF connectors. The output terminals of the multiple switch matrices are communicatively connected to the input terminals of the vector network analyzer. The output terminals of the vector network analyzer are communicatively connected to the control board of the liquid crystal phased array antenna pressure coupling device.

[0058] In the liquid crystal phased array antenna pressure testing system provided in this embodiment, when the radio frequency signal passes through the external switch matrix channel and transmits the signals of each unit to the vector network analyzer in real time, the optimal value is obtained through the real-time value obtained by the vector network analysis, and then the signal is transmitted to the liquid crystal phased array antenna pressure coupling device. The liquid crystal phased array antenna pressure coupling device receives the data from the vector network analyzer and starts to adjust the pressure values ​​of the four sets of servo motor systems respectively, and then transmits the signal to the vector network analyzer. This process is repeated until the liquid crystal phased array antenna obtains the optimal performance parameters, at which point the pressure coupling system stops.

[0059] The liquid crystal phased array antenna pressure testing system provided in this embodiment can form a positive feedback closed-loop testing system based on pressure-data changes in real time. This makes the panel bonding pressure data test both accurate and comprehensive, and provides effective data support for the antenna system, resulting in better consistency of the liquid crystal phased array antenna system and easier achievement of performance indicators.

[0060] For details on the specific implementation of a liquid crystal phased array antenna pressure coupling device, please refer to the limitations mentioned above, which will not be repeated here.

[0061] Example 3

[0062] Please see Figure 11 This embodiment provides a pressure testing method for a liquid crystal phased array antenna. This pressure testing method is applied to the liquid crystal phased array antenna pressure testing system of Embodiment 2, and includes:

[0063] Step 1: Place the liquid crystal phased array antenna on the antenna base of the liquid crystal phased array antenna pressure coupling device;

[0064] Step 2: The liquid crystal phased array antenna pressure coupling device controls multiple servo motor systems to transmit pressure to multiple lead screw drive systems through the control board;

[0065] Step 3: Multiple torsion spring structures begin to apply pressure to the liquid crystal phased array antenna under the pressure of multiple lead screw drive systems, and collect radio frequency signals through radio frequency probes;

[0066] Step 4: The acquired radio frequency signals are transmitted to multiple switch matrices through built-in and external radio frequency connectors;

[0067] Step 5: Multiple switch matrices transmit the acquired radio frequency signals to the vector network analyzer;

[0068] Step 6: The vector network analyzer determines whether the collected radio frequency signal represents the optimal performance parameters; if so, the process ends; otherwise, the result is returned to the liquid crystal phased array antenna pressure coupling device to re-determine the optimal performance parameters.

[0069] The specific implementation details of the liquid crystal phased array antenna pressure coupling device and the liquid crystal phased array antenna pressure testing system can be found in the above description and will not be repeated here.

[0070] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

Claims

1. A pressure coupling device for a liquid crystal phased array antenna, characterized in that, It includes a first housing and a second housing. The first housing is fixedly disposed above the second housing. A control board is fixedly disposed inside the first housing. A display panel and a control panel are fixedly disposed on the front of the first housing. The display panel and the control panel are both electrically connected to the control board. The second housing contains a plurality of servo motor systems, a plurality of lead screw drive systems, a plurality of torque rebound structures, a fixing plate, and an antenna base. The number of servo motor systems corresponds to the number of lead screw drive systems. The antenna base is fixedly installed at the bottom of the second housing. One end of each of the servo motor systems is fixedly installed at the top of the second housing and electrically connected to the control board, while the other end is fixedly connected to the fixing plate. One end of each of the lead screw drive systems passes through the fixing plate and is connected to the output end of the servo motor systems, while the other end passes through the antenna base and is fixedly installed at the bottom of the second housing. One end of each of the multiple torsion rebound structures passes through the fixing plate and is fixedly connected to multiple built-in radio frequency connectors, while the other end of each of the multiple torsion rebound structures is close to the antenna base. The torsion rebound structure has an RF probe and multiple pressure contacts fixedly installed at one end near the antenna base. The RF probe is electrically connected to the built-in RF connector at the other end through a transmission cable inside the torsion rebound structure. The upper surface of the antenna base is used to place the liquid crystal phased array antenna, and a plurality of built-in RF connectors are fixedly installed on the lower surface of the antenna base; a plurality of external RF connectors are fixedly installed on the two sides of the second housing, and the plurality of external RF connectors are electrically connected to the plurality of built-in RF connectors through transmission cables; the front of the second housing can be opened or closed.

2. The liquid crystal phased array antenna pressure coupling device according to claim 1, characterized in that, There are four servo motor systems and four lead screw transmission systems, which are respectively fixed at the four corners of the fixed plate.

3. The liquid crystal phased array antenna pressure coupling device according to claim 1, characterized in that, Multiple torsion rebound structures are fixedly mounted on the mounting plate along the two diagonals of the liquid crystal phased array antenna.

4. The liquid crystal phased array antenna pressure coupling device according to claim 3, characterized in that, The torsional rebound structure has nine components.

5. The liquid crystal phased array antenna pressure coupling device according to claim 1, characterized in that, A pressure sensor is fixedly installed between the torsion rebound structure and the built-in radio frequency connector.

6. The liquid crystal phased array antenna pressure coupling device according to claim 1, characterized in that, The display panel is a liquid crystal display panel.

7. The liquid crystal phased array antenna pressure coupling device according to claim 1, characterized in that, Both the built-in RF connector and the external RF connector use SMA connectors.

8. A pressure testing system for a liquid crystal phased array antenna, characterized in that, The device includes a vector network analyzer, multiple switch matrices, and a liquid crystal phased array antenna pressure coupling device as described in any one of claims 1-7. The liquid crystal phased array antenna pressure coupling device is communicatively connected to the input terminals of the multiple switch matrices via multiple external RF connectors. The output terminals of the multiple switch matrices are communicatively connected to the input terminals of the vector network analyzer. The output terminals of the vector network analyzer are communicatively connected to the control board of the liquid crystal phased array antenna pressure coupling device.

9. A method for testing the pressure of a liquid crystal phased array antenna, characterized in that, The liquid crystal phased array antenna pressure testing method is applied to the liquid crystal phased array antenna pressure testing system of claim 8, including: Step 1: Place the liquid crystal phased array antenna on the antenna base of the liquid crystal phased array antenna pressure coupling device; Step 2: The liquid crystal phased array antenna pressure coupling device controls multiple servo motor systems to transmit pressure to multiple lead screw drive systems through a control board; Step 3: Multiple torsion spring structures begin to apply pressure to the liquid crystal phased array antenna under the pressure of multiple lead screw drive systems, and collect radio frequency signals through radio frequency probes; Step 4: The acquired radio frequency signals are transmitted to multiple switch matrices through built-in and external radio frequency connectors; Step 5: The multiple switch matrices transmit the acquired radio frequency signals to the vector network analyzer; Step 6: The vector network analyzer determines whether the collected radio frequency signal is the optimal performance parameter; if yes, the process ends; if not, the determination result is returned to the liquid crystal phased array antenna pressure coupling device to re-determine the optimal performance parameter.

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