Antenna dielectric constant modulation device and reconstruction method based on 3D printing technology

Abstract

The present invention discloses an antenna dielectric constant modulation device and reconstruction method based on 3D printing technology, including a hinge mechanism and a hinge suspension base, the hinge suspension base is used to support the antenna, the hinge mechanism is fixed on the hinge suspension base, the hinge mechanism includes a hinge assembly, a sliding track and a sliding track end, the hinge assembly is slidably connected in the sliding track, the hinge assembly is hinged by a plurality of hinge plates, the hinge assembly can be folded or unfolded along the sliding track, the sliding track end is fixed at both ends of the sliding track, the hinge suspension base includes an antenna base and a support rod, the antenna base clamps the antenna, the hinge mechanism is fixed to the top of the support rod through the sliding track end, so that the hinge assembly is located directly above the antenna. The present invention realizes modulation of different dielectric constants of the antenna by adding a hinge mechanism and changing the degree of blocking of the antenna's outward radiation energy space without changing the antenna design structure, so that the antenna can be applied to more complex electromagnetic scenes.

Description

Technical Field

[0001] The present invention belongs to the technical field of antenna dielectric constant modulation, and specifically relates to an antenna dielectric constant modulation device and a reconstruction method based on 3D printing technology, which is particularly suitable for the design field of microwave antennas and variable dielectric constant antennas. Background Art

[0002] The design technology of variable dielectric constant antenna is an important technical process in communication and electronic information engineering. The dielectric constant of the antenna is of great significance in matching the antenna resonant frequency, improving the antenna gain and improving the transmission efficiency. When designing industrial antennas, designers need to consider the antenna's operating frequency, gain, radiation pattern and other parameters. Usually, antennas suitable for different frequency bands often have different dielectric constants, and the adaptation of the dielectric constant is one of the important indicators that affect the antenna's radiation performance.

[0003] The traditional method of changing the dielectric constant of an antenna requires changing the antenna medium. When designing the antenna, the dielectric layer is designed as a liquid layer, and liquids with different conductivity are injected to achieve the change of the dielectric constant. However, it has certain limitations: first, there are many steps to replace the liquid medium, which is difficult to use; second, the liquid medium has the risk of leakage, which further damages the antenna. Therefore, a more practical and safer method of modulating the dielectric constant of the antenna is proposed, which has important application value. Summary of the invention

[0004] In order to solve the problem that the dielectric constant of the antenna after processing is not easy to change, the present invention provides an antenna dielectric constant modulation device and reconstruction method based on 3D printing technology. The telescopic hinge mechanism is prepared by 3D printing technology. On the basis of not changing the antenna design structure, the telescopic hinge mechanism with a mask-like function is added to change the degree of blocking of the antenna's outward radiation energy space to achieve modulation of different dielectric constants of the antenna, which can make the antenna suitable for more complex electromagnetic scenarios and expand the working capacity of the antenna.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] As a first aspect of the present invention, there is provided an antenna dielectric constant modulation device based on 3D printing technology, comprising a hinge mechanism and a hinge suspension base, the hinge suspension base being used to support the antenna, the hinge mechanism being fixed on the hinge suspension base and being located directly above the antenna; the hinge mechanism comprising a hinge assembly, a sliding rail and a sliding rail end, the hinge assembly being slidably connected in the sliding rail, the hinge assembly being hinged by a plurality of hinge plates, the hinge assembly being foldable or unfoldable along the sliding rail, the sliding rail end being fixed at both ends of the sliding rail; the hinge suspension base comprising an antenna base and a support rod, the antenna base being a double-layer structure, the antenna being clamped between the double-layer structure, the support rod being fixed at both ends of the antenna base, the hinge mechanism being fixed to the top of the support rod through the sliding rail end, so that the hinge assembly is located directly above the antenna.

[0007] Furthermore, in the hinge assembly, every two hinge plates are connected by a hinge shaft, and the hinge plate and the hinge shaft are connected by a hinge pin. The hinge pin connected to each hinge shaft is placed in a sliding track to achieve free sliding, so that the hinge assembly can be folded or unfolded along the sliding track.

[0008] Furthermore, the antenna base includes four long antenna base rods and two short antenna base rods, and every two long antenna base rods are fixed up and down to form a double-layer long rod structure. The two short antenna base rods are fixed between the two groups of double-layer long rod structures. The antenna is clamped between the double-layer long rod structures and limited by the two short antenna base rods.

[0009] As a second aspect of the present invention, a method for reconstructing the dielectric constant of an antenna based on 3D printing technology is also provided, comprising the following steps:

[0010] Step 1: Obtain the antenna outline and establish the antenna structure model in the modeling software;

[0011] Step 2: Select the 3D printing material and measure the dielectric constant of the 3D printing material at different thicknesses;

[0012] Step 3: Design the antenna dielectric constant modulation device according to the antenna shape obtained in step 1:

[0013] S31. Design of the basic structure of antenna dielectric constant modulation device:

[0014] The antenna dielectric constant modulation device comprises a hinge mechanism and a hinge suspension base, the hinge suspension base is used to support the antenna, the hinge mechanism is fixed on the hinge suspension base and is located directly above the antenna, the hinge mechanism comprises a hinge assembly and a sliding track, the hinge assembly is slidably connected in the sliding track and can be folded or unfolded along the sliding track;

[0015] The design requirement of the antenna dielectric constant modulation device is that when the hinge mechanism is in a fully closed state, the hinge mechanism can still cover the antenna surface;

[0016] S32. According to the upper and lower limits of the dielectric constant to be adjusted, select the corresponding adjustment method to adjust the design of the hinge mechanism;

[0017] Step 4: 3D print the antenna dielectric constant modulation device designed and adjusted in step 3, and assemble the antenna on the antenna dielectric constant modulation device to complete the reconstruction of the antenna dielectric constant.

[0018] Furthermore, the step 2 comprises:

[0019] S21. Select 3D printing materials according to the dielectric constant;

[0020] S22. In the 3D structure design software, rectangular sheet models with thicknesses of 1 mm and 2 mm are established respectively, the 3D printing layer thickness is set to 0.1 mm, and the rectangular sheet structure is printed using the selected 3D printing material;

[0021] S23. Within the antenna operating frequency range, use a dielectric constant tester to measure the dielectric constants of a 1 mm rectangular piece, a 2 mm rectangular piece, and a 1 mm rectangular piece superimposed on a 1 mm rectangular piece, as a basis for determining the dielectric constant of the 3D printing material.

[0022] Furthermore, the step S32 includes:

[0023] S321. Adjust the lower limit of the dielectric constant by adjusting the thickness of each hinge plate of the hinge mechanism;

[0024] S322. The upper limit of the dielectric constant is adjusted by adjusting the length of each hinge plate of the hinge mechanism;

[0025] S323. When the dielectric constant of the selected 3D printing material is less than the dielectric constant required to be generated, the dielectric constant is adjusted by improving the hinge plate structure;

[0026] S324. When the dielectric constant of the selected 3D printing material A is greater than the dielectric constant required to be generated, the dielectric constant is adjusted by improving the hinge plate structure or replacing the material.

[0027] Furthermore, in step S321, if the thickness of the hinge plate is reduced, the minimum dielectric constant of the hinge mechanism will be reduced; if the thickness of the hinge plate is increased, the minimum dielectric constant of the hinge mechanism will be increased.

[0028] Furthermore, in step S322, if the length of the hinge plate is reduced, the maximum dielectric constant of the hinge mechanism is reduced; if the length of the hinge plate is increased, the maximum dielectric constant of the hinge mechanism is increased.

[0029] Furthermore, in step S323, any one of the following methods is selected to adjust the dielectric constant:

[0030] The first solution is to stick a metal patch on the upper layer of the hinge plate structure to increase the dielectric constant of the structure;

[0031] The second solution is to pre-make a groove in the hinge plate structure, attach the metal patch in the groove structure, and inlay the metal patch on the surface of the hinge plate structure;

[0032] The third solution is to make a splint structure, 3D print the upper and lower layers of the splint, add a metal patch structure in the middle, and finally knead it into an integrated structure.

[0033] Furthermore, in step S324, any one of the following methods is selected to adjust the dielectric constant:

[0034] The first solution is to add multiple air holes to the hinged plate structure to reduce the dielectric constant of the structure;

[0035] The second solution is to find a 3D printing material B that can produce a dielectric constant lower than the required value, and use the 3D printing material selected in step 2 and 3D printing material B to print the upper and lower layers of the hinge plate respectively, and knead them into an integrated structure.

[0036] The present invention has the following beneficial effects:

[0037] The antenna dielectric constant modulation device provided by the present invention is prepared by 3D printing technology, has simple design, convenient production, and controllable cost, improves the limitation that the antenna can only emit a single radiation pattern, and can achieve the purpose of dynamically adjusting the antenna radiation pattern through the device, and has wide practicality.

[0038] The antenna dielectric constant reconstruction method provided by the present invention, without changing the antenna design structure, changes the degree of blocking of the antenna's outward radiation energy space by adding a telescopic hinge mechanism with a mask function to achieve modulation of the antenna's different dielectric constants, so that the antenna that has been processed and used still has the ability to adjust the dielectric constant, thereby expanding the antenna's working capacity. The method is simple to manufacture, low in price, and has no risk of damaging the antenna structure, and can meet the needs of daily use and current industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings used in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0040] Figure 1 This is a schematic diagram of the overall structure of the antenna dielectric constant modulation device according to Embodiment 1 of the present invention;

[0041] Figure 2 This is a schematic diagram of the hinge mechanism described in Example 1 of the present invention;

[0042] Figure 3 This is a schematic diagram of an exploded view of the hinge suspension base described in Example 1 of the present invention;

[0043] FIG4( a ) is a schematic diagram of the hinge mechanism in the stretched state according to Embodiment 1 of the present invention;

[0044] FIG4( b ) is a schematic diagram of the closed state of the hinge mechanism described in Example 1 of the present invention;

[0045] Figure 5 This is a schematic diagram of the dimensions of the hinge mechanism described in Example 2 of the present invention;

[0046] Figure 6 This is a schematic diagram of the hinge plate groove structure in Example 2 of the present invention;

[0047] Figure 7 This is a flow chart of the antenna dielectric constant reconstruction method described in Example 2 of the present invention;

[0048] In the figure:

[0049] 11-hinge plate; 12-hinge shaft; 13-hinge pin; 14-sliding track; 15-sliding track end; 21-long rod of antenna base; 22-short rod of antenna base; 23-support rod; 24-support foot; 3-antenna. DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0051] Example 1

[0052] like Figures 1 to 3 As shown, this embodiment is an antenna dielectric constant modulation device based on 3D printing technology, including a hinge mechanism and a hinge suspension base, the hinge suspension base is used to support the antenna, and the hinge mechanism is fixed on the hinge suspension base and is located directly above the antenna;

[0053] like Figure 2As shown, the hinge mechanism includes a hinge assembly, a sliding rail 14 and a sliding rail end 15. The hinge assembly is slidably connected in the sliding rail 14 so that the hinge assembly can be folded or unfolded along the sliding rail 14. The sliding rail end 15 is fixed at both ends of the sliding rail 14. The hinge mechanism is fixed to the hinge suspension base through the sliding rail end 15 so that the hinge assembly is located directly above the antenna.

[0054] The hinge assembly is formed by hingedly connecting a plurality of hinge plates 11, and the hinge plate 11 is the basic moving unit of the hinge; the two hinge plates 11 are connected by a hinge shaft 12 so that the hinge can be folded freely, and the hinge shaft 12 is the joint of the hinge; the hinge plates 11 and the hinge shaft 12 are connected by a hinge pin 13 to prevent the hinge assembly from separating, and at the same time, the hinge pin 13 connected to each hinge shaft 12 is placed in a sliding track 14 to achieve free sliding, so that the hinge assembly can be folded or unfolded along the sliding track 14.

[0055] There are through-hole structures at both ends of the hinge plate 11 and the hinge shaft 12, and the through-hole structure of the hinge shaft 12 can be embedded in the through-hole structure of the hinge plate 11, and then the hinge pin 13 is inserted into the through-hole structure to connect the hinge plate 11 and the hinge shaft 12 to complete the assembly.

[0056] The length of the hinge pin 13 is longer than the width of the hinge plate 11, and both ends of the hinge pin 13 are embedded in the sliding track 14 to complete the assembly of the hinge assembly and the sliding track 14; both ends of the sliding track 14 are embedded in the end of the sliding rail to fix the two sliding rails into one body to complete the assembly.

[0057] When the two ends of the hinge assembly are stretched outward by force, the extendable sliding tracks 14 are fully extended; when the two ends of the hinge assembly are moved inward by force, the extendable sliding tracks 14 are all brought together to form a closed state.

[0058] The sliding rail 14 is used to limit the range of free movement of the hinge assembly. The two sliding rails 14 are respectively placed on the left and right outer sides of the hinge assembly, and the hinge plate 11, hinge shaft 12, hinge pin 13 and other structures are clamped between the two sliding rails.

[0059] The slide rail end 15 is fixed to the hinge suspension base while locking the slide rail 14 to prevent the hinge mechanism from being separated from the slide rail.

[0060] like Figure 3 As shown, the hinge suspension base includes an antenna base and a support rod 23. The antenna base is a double-layer structure, and the antenna 3 is clamped between the double-layer structure. The support rod 23 is fixed at both ends of the antenna base, and the hinge mechanism is fixed on the top of the support rod 23 so that the hinge mechanism is located directly above the antenna.

[0061] The antenna base includes four antenna base long rods 21, two antenna base short rods 22 and supporting feet 24. The length of the antenna base long rods 21 is the same as the length of the sliding track, and the length of the short rods is the same as the hinge width. Every two antenna base long rods 21 are fixed up and down to form a group of double-layer long rod structures. Two antenna base short rods 22 are fixed between the two groups of double-layer long rod structures. The antenna 3 is clamped between the double-layer long rod structures and limited by the two antenna base short rods 22.

[0062] The two antenna base long poles 21 constituting the double-layer long pole structure are assembled together through a mortise and tenon structure and fixed to the bottom of the support pole 23, and the two antenna base short poles 22 are overlapped between the two groups of long poles.

[0063] The supporting foot 24 is a truncated cone structure, which is inserted into the bottom of the antenna base long rod 21 of the antenna base to complete the assembly.

[0064] The upper end of the support rod 23 is inserted into the sliding track, and the lower end is inserted into the long rod of the antenna base, so that the hinge mechanism and the hinge suspension base are assembled together.

[0065] Example 2

[0066] like Figure 7 As shown, this embodiment is a method for reconstructing the dielectric constant of an antenna based on 3D printing technology, comprising the following steps:

[0067] Step 1: Measure the dimensions of the antenna, obtain the accurate outline of the antenna, and build a structural model of the antenna in the open source modeling software FreeCAD.

[0068] Step 2: Select the 3D printing material and measure the dielectric constant of the 3D printing material at different thicknesses:

[0069] S21. Select the material for 3D printing according to factors such as the size of the dielectric constant and the difficulty of obtaining the material. In this embodiment, the PLA material commonly used in 3D printing is selected;

[0070] S22. In the 3D structural design software, rectangular square models with thicknesses of 1 mm and 2 mm are respectively established, the 3D printing layer thickness is set to 0.1 mm, and the above structures are 3D printed using PLA material, wherein the 1 mm rectangular square structure is printed twice and the 2 mm rectangular square structure is printed once. In this embodiment, the 3D design software FreeCAD is used.

[0071] S23. Within the antenna operating frequency range, use a dielectric constant tester to measure the dielectric constants of a 1 mm rectangular piece, a 2 mm rectangular piece, and a 1 mm rectangular piece superimposed on a 1 mm rectangular piece, as a basis for determining the dielectric constant of the PLA material.

[0072] Step 3: Design an antenna dielectric constant modulation device based on the antenna shape profile obtained in step 1.

[0073] S31. Basic structure design of antenna dielectric constant modulation device: The antenna dielectric constant modulation device includes a hinge mechanism and a hinge suspension base. The hinge suspension base is used to support the antenna. The hinge mechanism is fixed on the hinge suspension base and is located directly above the antenna. The design requirement of the antenna dielectric constant modulation device is that when the hinge mechanism is in a fully closed state, the hinge mechanism can still cover the surface of the antenna.

[0074] S32. According to the upper and lower limits of the dielectric constant to be adjusted, select the corresponding adjustment method to adjust the design of the hinge mechanism:

[0075] S321. The lower limit of the dielectric constant is adjusted by adjusting the thickness of each hinge plate of the hinge mechanism: the thickness of each hinge plate is changed, thereby adjusting the ability of the hinge mechanism to change the dielectric constant when the hinge mechanism is in a fully extended state; when the hinge is fully extended, only a single layer of hinge plate shields the surface of the antenna, and reducing the thickness of the hinge plate can reduce the minimum dielectric constant of the hinge mechanism, and increasing the thickness of the hinge plate can increase the minimum dielectric constant of the hinge mechanism, such as Figure 5 shown.

[0076] S322. The upper limit of the dielectric constant is adjusted by adjusting the length of each hinge plate of the hinge mechanism: the length of each hinge plate is changed, and the ability of the hinge mechanism to change the dielectric constant when it is in a fully closed state is adjusted; when the hinge is fully closed, the length of the hinge plate is the thickness of the surface of the shielding antenna, and reducing the length of the hinge plate can reduce the maximum dielectric constant of the structure, and increasing the length of the hinge plate can increase the maximum dielectric constant of the structure, such as Figure 5 shown.

[0077] S323. When the dielectric constant of the selected 3D printing material is less than the dielectric constant to be generated, the dielectric constant is adjusted by improving the hinge plate structure: the first solution is to paste a metal patch on the upper layer of the hinge plate structure to increase the dielectric constant of the structure; the second solution is to pre-make a groove in the hinge plate structure, such as Figure 6 As shown, the metal patch is attached to the groove structure and the metal patch is inlaid on the surface of the hinge plate structure; the third solution is to make a splint structure, 3D print the upper and lower layers of the splint, add a metal patch structure in the middle, and finally knead them into an integrated structure.

[0078] S324. When the dielectric constant of the selected 3D printing material A is greater than the dielectric constant required, the dielectric constant is adjusted by improving the hinge plate structure or replacing the material: the first solution is to add multiple air holes to the hinge plate structure to reduce the dielectric constant of the structure; the second solution is to find a 3D printing material B that can produce a dielectric constant lower than the required one, and use 3D printing material A and 3D printing material B to print the upper and lower layers of the hinge plate respectively, and combine them into an integrated structure.

[0079] Step 4: 3D print the antenna dielectric constant modulation device designed and adjusted in step 3, and assemble the antenna on the antenna dielectric constant modulation device to complete the reconstruction of the antenna dielectric constant.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An antenna dielectric constant modulation device based on 3D printing technology, characterized in that: It includes a hinge mechanism and a hinge suspension base, the hinge suspension base is used to support the antenna, the hinge mechanism is fixed on the hinge suspension base and is located directly above the antenna; the hinge mechanism includes a hinge assembly, a sliding track and a sliding track end, the hinge assembly is slidably connected in the sliding track, the hinge assembly is hinged by a plurality of hinge plates, the hinge assembly can be folded or unfolded along the sliding track, and the sliding track end is fixed at both ends of the sliding track; the hinge suspension base includes an antenna base and a support rod, the antenna base is a double-layer structure, the antenna is clamped between the double-layer structure, the support rod is fixed at both ends of the antenna base, the hinge mechanism is fixed to the top of the support rod through the sliding track end, so that the hinge assembly is located directly above the antenna; In the hinge assembly, every two hinge plates are connected by a hinge shaft, and the hinge plates and the hinge shaft are connected by a hinge pin, and the hinge pins connected to every other hinge shaft are placed in the sliding track to achieve free sliding, so that the hinge assembly can be folded or unfolded along the sliding track; The antenna base includes four antenna base long rods and two antenna base short rods. Every two antenna base long rods are fixed up and down to form a group of double-layer long rod structures. The two antenna base short rods are fixed between the two groups of double-layer long rod structures. The antenna is clamped between the double-layer long rod structures and limited by the two antenna base short rods.

2. A method for reconstructing the dielectric constant of an antenna based on 3D printing technology, used in the antenna dielectric constant modulation device based on 3D printing technology as claimed in claim 1, characterized in that: The following steps are involved: Step 1: Obtain the antenna outline and establish the antenna structure model in the modeling software; Step 2: Select the 3D printing material and measure the dielectric constant of the 3D printing material at different thicknesses; Step 3: Design the antenna dielectric constant modulation device according to the antenna shape obtained in step 1: S31. Design of the basic structure of antenna dielectric constant modulation device: The antenna dielectric constant modulation device comprises a hinge mechanism and a hinge suspension base, the hinge suspension base is used to support the antenna, the hinge mechanism is fixed on the hinge suspension base and is located directly above the antenna, the hinge mechanism comprises a hinge assembly and a sliding track, the hinge assembly is slidably connected in the sliding track and can be folded or unfolded along the sliding track; The design requirement of the antenna dielectric constant modulation device is that when the hinge mechanism is in a fully closed state, the hinge mechanism can still cover the antenna surface; S32. According to the upper and lower limits of the dielectric constant to be adjusted, select the corresponding adjustment method to adjust the design of the hinge mechanism; Step 4: 3D print the antenna dielectric constant modulation device designed and adjusted in step 3, and assemble the antenna on the antenna dielectric constant modulation device to complete the reconstruction of the antenna dielectric constant.

3. The antenna dielectric constant reconstruction method based on 3D printing technology as claimed in claim 2, characterized in that: The second step comprises: S21. Select 3D printing materials according to the dielectric constant; S22. In the 3D structure design software, rectangular sheet models with thicknesses of 1 mm and 2 mm are established respectively, the 3D printing layer thickness is set to 0.1 mm, and the rectangular sheet structure is printed using the selected 3D printing material; S23. Within the antenna operating frequency range, use a dielectric constant tester to measure the dielectric constants of a 1 mm rectangular piece, a 2 mm rectangular piece, and a 1 mm rectangular piece superimposed on a 1 mm rectangular piece, as a basis for determining the dielectric constant of the 3D printing material.

4. The antenna dielectric constant reconstruction method based on 3D printing technology as claimed in claim 2, characterized in that: The step S32 comprises: S321 by adjusting the thickness of each hinge plate of the hinge mechanism to adjust the lower limit of the dielectric constant; S322. The upper limit of the dielectric constant is adjusted by adjusting the length of each hinge plate of the hinge mechanism; S323. When the dielectric constant of the selected 3D printing material is less than the dielectric constant required to be generated, the dielectric constant is adjusted by improving the hinge plate structure; S324. When the dielectric constant of the selected 3D printing material A is greater than the dielectric constant required to be generated, the dielectric constant is adjusted by improving the hinge plate structure or replacing the material.

5. The antenna dielectric constant reconstruction method based on 3D printing technology as claimed in claim 4, characterized in that: In the step S321, if the thickness of the hinge plate is reduced, the minimum dielectric constant of the hinge mechanism will be reduced; if the thickness of the hinge plate is increased, the minimum dielectric constant of the hinge mechanism will be increased.

6. The antenna dielectric constant reconstruction method based on 3D printing technology according to claim 4, characterized in that: In the step S322, if the length of the hinge plate is reduced, the maximum dielectric constant of the hinge mechanism is reduced; if the length of the hinge plate is increased, the maximum dielectric constant of the hinge mechanism is increased.

7. The antenna dielectric constant reconstruction method based on 3D printing technology according to claim 4, characterized in that: In step S323, any of the following methods is selected to adjust the dielectric constant: The first solution is to stick a metal patch on the upper layer of the hinge plate structure to increase the dielectric constant of the structure; The second solution is to pre-make a groove in the hinge plate structure, attach the metal patch in the groove structure, and inlay the metal patch on the surface of the hinge plate structure; The third solution is to make a splint structure, 3D print the upper and lower layers of the splint, add a metal patch structure in the middle, and finally knead it into an integrated structure.

8. The antenna dielectric constant reconstruction method based on 3D printing technology according to claim 4, characterized in that: In step S324, any of the following methods is selected to adjust the dielectric constant: The first solution is to add multiple air holes to the hinged plate structure to reduce the dielectric constant of the structure; The second solution is to find a 3D printing material B that can produce a dielectric constant lower than the required value, and use the 3D printing material selected in step 2 and 3D printing material B to print the upper and lower layers of the hinge plate respectively, and knead them into an integrated structure.

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