A reflector antenna thin film electrode surface positioning connection and adjustable tensioning device

Abstract

The present invention discloses a device for positioning, connecting, and adjusting the thin-film electrode surface of a reflector antenna. The device comprises an electrode surface uniform tensioning device, disposed on the thin-film electrode surface. The device connects the thin-film electrode surface, ribs, and ribs via an arched movable assembly, thereby achieving a positional connection between the thin-film electrode surface and the cable net, thereby tensioning the thin-film electrode surface into a parabola. A cable-membrane connection device, which uses male and female buckles to clamp the reflector surface's limiting cable segments, vertical cable segments, and transverse cable segments into a single unit, is used to position the thin-film electrode surface with the ribs and to adjustably and evenly tension the thin-film electrode surface to form an ideal parabola. The present invention enables reliable positioning, connection, and adjustable uniform tensioning of the thin-film electrode surface of a radially ribbed thin-film reflector antenna, ensuring the flatness of the thin-film electrode surface and improving the precision of electrostatic force control on the thin-film reflector surface.

Description

Technical Field

[0001] The invention belongs to the technical field of electrostatically formed film antennas and their applications, and in particular relates to a film electrode surface positioning connection and an adjustable uniform tensioning device for a satellite-borne radial rib film reflector antenna. Background Art

[0002] With the rapid development of my country's aerospace technology, the demand for large-aperture, high-precision satellite antennas in fields such as space communications, deep space exploration, and military reconnaissance is constantly increasing. Thin-film reflector antennas are an important development trend for future satellite-borne antennas and a research hotspot in various countries because they more easily meet the requirements of large aperture, high precision, and light weight. The radial rib electrostatically formed thin-film reflector antenna is a type of high-precision reflector antenna. Its basic electrode structure is formed by laying several thin-film electrode sheets on the basic cable net surface. The thin-film reflector is made into the required parabolic shape using one-piece molding technology and is installed and suspended a certain distance above the electrode structure. The deformation of the reflector is controlled by controlling the electrostatic force generated by the voltage between the electrode film and the reflector film, thereby achieving a high-precision reflective surface.

[0003] The key to high-precision assembly of radial-rib thin-film reflector antennas lies in the precise positioning and connection of the thin-film electrode surfaces, including the positioning and connection between the thin-film electrode surface and the cable mesh, and the positioning and connection between the thin-film electrode surface and the ribs. Traditionally, the basic thin-film electrode surface is fabricated by cutting and pasting triangular electrode membranes of a designed size onto the basic cable mesh. This pasting is done by laying the electrode membranes in mid-air after the basic cable mesh is constructed. This makes it difficult to evenly adhere the adjacent edges of the two electrode membranes, ensuring a smooth surface and causing stress concentration. Furthermore, pasting the thin-film electrode surfaces together can lead to adhesive failure due to excessive internal stress in the membrane.

[0004] Therefore, how to solve the problem that the thin film electrode surface in the radial rib electrostatically formed thin film reflective antenna has no positioning points during installation, resulting in the thin film electrode surface being unable to be effectively positioned and connected with the cable net and rib strips, and improper connection boundary treatment will cause the film to be subjected to concentrated force or local relaxation, and unable to be uniformly tensioned to form a smooth electrode surface shape has become a technical problem that needs to be urgently solved in this field. Summary of the Invention

[0005] In order to solve the above-mentioned defects existing in the prior art, the purpose of the present invention is to provide a positioning connection and adjustable tensioning device for the thin film electrode surface of the reflective surface antenna. By adopting an I-shaped cable net configuration as a support for the thin film electrode surface, the thin film electrode surface between the two ribs directly uses a preformed whole film with an ideal parabolic shape with a certain stiffness, and on this basis, through a cable-membrane connection device and an electrode surface uniform tensioning device, the reliable positioning connection and adjustable uniform tensioning of the thin film electrode surface of the radial rib thin film reflective surface antenna are achieved, thereby ensuring the flatness of the thin film electrode surface and improving the electrostatic force control accuracy of the thin film reflective surface.

[0006] The present invention is achieved through the following technical solutions.

[0007] The present invention provides a reflector antenna thin film electrode surface positioning connection and adjustable tensioning device, comprising:

[0008] The electrode surface uniform tensioning device is arranged on the membrane electrode surface, and is connected to the membrane electrode surface, rib strips and ribs through a movable component with an arched structure, so as to realize the positioning connection between the membrane electrode surface and the cable net;

[0009] The cable-membrane connection device clamps the reflective surface limiting cable segment, vertical cable segment and transverse cable segment through male and female buckles, and is used to position the thin film electrode surface and the rib strips and to adjustably and evenly tension the thin film electrode surface to form an ideal parabola.

[0010] Preferably, radial ribs and ribs are arranged on the electrode surface of the antenna film, and the electrode surface uniform tensioning device, the ribs, the film electrode surface and the ribs are connected by adjusting columns.

[0011] Preferably, the electrode surface uniform tensioning device includes a pair of movable components with a bow-shaped structure, and the openings of the pair of movable components with a bow-shaped structure are connected to each other; the movable components are concave arc-shaped, and the ribs and ribs are connected by adjusting columns to form a concave arc shape, thereby tensioning the thin film electrode surface into a parabola.

[0012] Preferably, the movable component of the bow-shaped structure includes an upper groove, a lower groove and a film strip, a rib strip is inserted into the bottom surface of the upper groove, the film electrode surface is pasted above the lower groove, and a film strip is laid on the bonding boundary of the film electrode surface. The middle part of the movable component is connected to the rib strip through an adjusting column, and the end of the movable component is pressed and connected with the rib strip by screws, and the movable component is pressed and connected with the film electrode surface and the film strip by a set screw.

[0013] Preferably, the depth of the upper groove is slightly greater than the sum of the thickness of the nut and the thickness of the rib strip, the width of the upper groove is slightly less than half the width of the rib strip, and the width of the lower groove is 3 / 4 of the width of the moving component.

[0014] Preferably, a plurality of positioning openings are provided in the middle of the moving component, which are arranged at intervals along the length direction of the slot above the moving component. The positioning openings are rectangular strip-shaped holes, and the adjusting column can move along the positioning openings.

[0015] Preferably, the cable-membrane connection device includes a sub-buckle, a female buckle and a copper tube pressing nose. The sub-buckle is placed above the thin film electrode surface, and the female buckle is placed below the thin film electrode surface. The reflecting surface limiting cable segment passes through the sub-buckle and is connected to the thin film reflecting surface; the vertical cable segment passes through the female buckle, and the transverse cable segment passes through the female buckle to sew the vertical cable segment and the transverse cable segment at the designed node, and the sutured part is placed inside the female buckle; the copper tube pressing nose clamps the reflecting surface limiting cable segment and the vertical cable segment into a whole.

[0016] Preferably, the female buckle is provided with a horizontal female buckle cable hole, a longitudinal female buckle through hole and a female buckle step hole. The transverse cable segment passes through the female buckle cable hole and sews the vertical cable segment and the transverse cable segment at the designed node. The copper tube pressing nose is embedded in the female buckle step hole, and the depth of the female buckle step hole is half of the copper tube pressing nose.

[0017] Preferably, a transverse cable tightening cone groove is provided on the sub-buckle, and a transverse cable tightening cone is provided on the mother buckle. The transverse cable tightening cone clamps the transverse cable segment in the slot hole of the transverse cable tightening cone groove which is smaller than the diameter of the cable segment.

[0018] Preferably, the gap between the transverse cable segment and the buckle boss is the thickness of the lower groove at the lower part of the upper groove in the moving component plus the lower groove wall.

[0019] The present invention adopts the above technical solution, which has the following beneficial effects:

[0020] 1. The design of the cable-membrane connection device can ensure that the cable net and the thin film electrode surface are stable and secure, and the connection with high installation positioning accuracy can form an ideal shape of the thin film electrode surface on the cable net.

[0021] 2. The design of the cable-membrane connection device unifies the positioning height of the thin film electrode surface. The upper end limit device is a boss set on the sub-buckle, and the lower end is limited by a transverse cable segment. By setting a transverse cable tightening cone, it can be ensured that the designed gap between the transverse cable segment and the thin film electrode surface is achieved. This is the same as the gap between the transverse cable segment and the thin film electrode surface at the rib, ensuring that the positioning height of the thin film electrode surface is consistent at the connection between the cable net and the rib strip. 3. The design of the electrode surface uniform tensioning device can evenly compress the electrode surface boundary. During installation, the thin film electrode surface can be evenly tensioned between the ribs according to the positioning point to make the thin film electrode surface reach the desired shape.

[0022] 4. The design of the electrode surface uniform tensioning device increases the adjustability of the film electrode surface. When the film electrode surface is deformed due to manufacturing errors or other conditions, it can be adjusted to offset the deformation.

[0023] 5. The design of the electrode surface uniform tensioning device is more reliable than the traditional method of pasting the thin film electrode surface, and can solve the problem of wrinkling of the thin film electrode surface caused by pasting failure during working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the positions of the radial rib thin film reflective surface antenna line film connection device and the electrode surface uniform tensioning device in the overall antenna structure of the present invention;

[0026] Figure 2 This is a structural schematic diagram of a uniform tensioning device of the present invention;

[0027] Figure 3 This is a schematic structural diagram of a moving component of a uniform tensioning device according to the present invention;

[0028] Figure 4 This is a structural schematic diagram of an antenna thread membrane connection device of the present invention;

[0029] Figure 5 This is a schematic diagram of the buckle and fixing cone structure of the antenna thread membrane connection device of the present invention;

[0030] Figure 6 This is a physical picture of a radial rib thin film reflector antenna thin film electrode surface positioning connection and adjustable uniform tensioning device produced according to the design plan;

[0031] Figure 7 It is the surface error distribution diagram of the thin film electrode surface after the physical object is adjusted;

[0032] In the figure: I. cable-membrane connecting device, II. electrode surface uniform tensioning device, 1. film reflecting surface, 2. reflecting surface limiting cable segment, 3. sub-buckle, 301. sub-buckle cable hole, 302. sub-buckle boss, 4. film electrode surface, 5. transverse cable segment, 6. female buckle, 601. female buckle cable hole, 602. female buckle through hole, 603. female buckle step hole, 7. copper tube pressure nose, 8. vertical cable segment, 9. moving component, 901. screw hole, 902. positioning port, 903. tightening screw hole, 904. lower groove, 905. upper groove, 10. screw, 11. nut, 12. rib strip, 13. tightening screw, 14. film pressure strip, 15. adjusting column, 16. rib, 36. transverse cable tightening cone. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0034] Please see the attached Figure 1 A radial rib thin film reflector antenna thin film electrode surface positioning connection and adjustable uniform tensioning device includes a plurality of radial electrode surface uniform tensioning devices II arranged on the thin film electrode surface 4, which are used to realize the positioning connection between the thin film electrode surface 4 and the cable net, and a plurality of evenly distributed cable-membrane connection devices I arranged on the edge of the thin film electrode surface 4, which are used to position the thin film electrode surface 4 and the rib strips and to adjustably and uniformly tension the thin film electrode surface to form an ideal parabola.

[0035] Radial ribs 12 and ribs 16 are arranged on the antenna film electrode surface 4. The electrode surface uniform tensioning device II, the ribs 12, the film electrode surface 4 and the ribs 16 are connected by adjusting the column 15 to achieve the preliminary positioning of the film electrode surface 4; the electrode surface uniform tensioning device II is a concave arc shape, and the ribs 12 and the ribs 16 are connected by adjusting the column 15 to form the ribs 12 into a concave arc shape, thereby tensioning the film electrode surface 4 into a parabola.

[0036] Please see the attached Figure 2 and attached Figure 3 The electrode surface uniform tensioning device II includes a pair of movable components 9 in an arched structure. The openings of the pair of movable components 9 in an arched structure are connected to each other. The movable components 9 in an arched structure include an upper slot 905, a lower slot 904, a film pressure strip 14, a screw 10, a nut 11, and a set screw 13. A positioning hole 902 that passes through the adjustment column 15 and a screw hole 901 that passes through the screw 10 are provided on the upper slot plate of the upper slot 905; a set screw hole 903 that passes through the set screw 13 is provided on the upper slot plate of the lower slot 904. A rib strip 12 is inserted into the bottom surface of the upper slot 905. The film electrode surface 4 is arranged above the lower slot 904. The film pressure strip 14 is padded on the film electrode surface 4. The middle part of the movable component 9 is connected to the rib strip 12 through the positioning hole 902 by the adjustment column 15, thereby achieving preliminary positioning of the film electrode surface 4; the end of the movable component 9 is connected to the rib strip 12 through the screw hole 901 by the screw 10. The screw 10 is placed in the screw hole 901. When the screw 10 is tightened, the nut 11 moves upward and is pressed and fixed with the upper end of the upper groove 905. At the same time, the screw 10 moves downward, and the bottom of the screw 10 and the lower end of the upper groove 905 clamp the rib strip 12 to achieve structural fixation.

[0037] When tightening the screw 10, the moving component 9 is pressed and connected to the thin film electrode surface 4 and the thin film strip 14 by the set screw 13 passing through the set screw hole 903, and the rib strip 12 presses the set screw 13. The set screw 13 applies pressure to the thin film strip 14 below. The thin film strip 14 and the lower end of the lower groove 904 clamp the boundary of the thin film electrode surface 4, and apply uniform pressure to the boundary of the thin film electrode surface 4.

[0038] The length of the set screw 13 should be slightly longer than the distance from the top of the membrane bead 14 to the bottom of the rib strip 12 before installation. The movable assembly 9 is clamped and fixed to the rib strip 12 through the upper groove 905; the rib strip 12, membrane electrode surface 4, and movable assembly 9 form a whole. By applying a uniform tensile force to the entire periphery of the membrane electrode surface 4, the membrane electrode surface 4 can be evenly tensioned.

[0039] The movable component 9 is in the shape of a concave arc and fits with the rib strip 12; the boundary of the thin film electrode surface 4 is bonded and pressed against the lower groove 904; a thin film strip 14 is laid above the bonding boundary of the thin film electrode surface 4 to apply uniform pressure to the boundary of the thin film electrode surface 4; the movable component 9 is clamped and fixed on the rib strip 12 through the upper groove 905; the rib strip 12, the thin film electrode surface 4 and the movable component 9 form a whole, and by applying uniform tension to the entire boundary of the thin film electrode surface 4, the thin film electrode surface 4 can be evenly tensioned.

[0040] The screw hole 901 and the set screw hole 903 are circular holes, and the positioning hole 902 is a rectangular strip hole. The adjustment column 15 can move flexibly within a certain range along the positioning hole 902. Several positioning holes 902 are arranged at intervals along the length direction of the slot 905 above the moving component 9.

[0041] The diameter of the screw 10 is the same as that of the screw hole 901, and the length of the screw 10 should be slightly longer than the distance from the top of the moving component 9 to the top of the rib strip 12 before installation.

[0042] The depth of upper groove 905 should be slightly greater than the combined thickness of nut 11 and rib 12. The width of upper groove 905 should be slightly less than half the width of rib 12 to ensure symmetrical installation and flexible movement of the membrane-moving assembly within a certain range. The width of lower groove 904 should be ¾ of the width of moving assembly 9 to ensure that a sufficient portion of the membrane electrode surface 4 is bonded and pressed tightly into lower groove 904, and to ensure the strength of the moving assembly.

[0043] The width of the film strip 14 should be equal to the width of the groove 904 below to ensure that enough of the boundary of the film electrode surface 4 is clamped. When the antenna is working, applying tension to the film-moving component as a whole can ensure that the entire boundary of the film electrode surface 4 is evenly applied with tension, so that the film electrode surface 4 can be evenly tensioned.

[0044] Please see the attached Figure 4 The cable-membrane connection device I includes a sub-buckle 3, a female buckle 6 and a copper tube pressing nose 7. The sub-buckle 3 is placed above the thin film electrode surface 4, and the reflecting surface limiting cable segment 2 passes through the sub-buckle 3 to connect the upper thin film reflecting surface 1; the female buckle 6 is placed below the thin film electrode surface 4, and the transverse cable segment 5 passes through the female buckle 6; the vertical cable segment 8 and the transverse cable segment 5 are sutured and fixed at the designed node to ensure that the vertical cable segment 8 does not slide along the transverse cable segment 5. After the suturing is completed, the sutured part is placed inside the female buckle 6; the copper tube pressing nose 7 clamps the reflecting surface limiting cable segment 2 and the vertical cable segment 8 into a whole, and the clamped copper tube pressing nose 7 is placed below the female buckle 6.

[0045] Please see the attached Figure 4 、 Figure 5As shown, the buckle 3 includes a buckle boss 302, which is placed above the thin film electrode surface 4 as an upper end limiting device. A buckle through hole 301 is provided on the buckle boss 302, which allows the reflecting surface limiting rope segment 2 to pass through the buckle through hole 301 and connect with the thin film reflecting surface 1 to achieve the limiting of the thin film reflecting surface 1. The buckle boss 302 ensures that the gap between the thin film reflecting surface 1 and the thin film electrode surface 4 does not exceed the maximum electrostatic force adsorption distance.

[0046] The female buckle 6 is placed below the thin-film electrode surface 4. It is provided with a horizontal female buckle cable hole 601, a longitudinal female buckle through-hole 602, and a female buckle stepped hole 603. The transverse cable segment 5 is passed through the female buckle cable hole 601. The vertical cable segment 8 and the transverse cable segment 5 are sewn together at the designed node. Once sewn, the sewn portion is placed inside the female buckle 6. The female buckle stepped hole 603 has the same diameter as the outer diameter of the copper tube nose 7 and a depth half that of the copper tube nose 7. The copper tube nose 7 fits into the female buckle stepped hole 603. The copper tube nose 7 sandwiches the reflective surface limiting cable segment 2 and the vertical cable segment 8 together, with the clamping length being half that of the copper tube nose 7 to ensure sufficient clamping length. The clamped copper tube nose 7 is then placed into the female buckle stepped hole 603 below the female buckle 6 to secure the reflective surface limiting cable segment 2 and prevent the female buckle from deflecting under cable tension.

[0047] The lower end of the buckle 3 is limited by the transverse cable segment 5. By setting the size of the transverse cable tightening cone 36, the thin film electrode surface 4 is limited up and down to ensure that the designed gap is reached between the transverse cable segment 5 and the thin film electrode surface 4.

[0048] A transverse cable tightening cone groove is provided on the sub-buckle 3, and a transverse cable tightening cone 36 is provided on the female buckle 6. When the sub-buckle 3 is installed to form a snap connection with the female buckle 6, the transverse cable tightening cone 36 can clamp the transverse cable segment 5 in the slot hole of the transverse cable tightening cone groove which is smaller than the diameter of the cable segment, thereby realizing the fixation of the transverse cable segment 5 and the sub-buckle and female buckle.

[0049] Please see the attached Figure 5 Combine Figure 1-3 As shown, the thin film electrode surface 4 is positioned at a uniform height at the cable net and the rib strip 12, the thin film electrode surface 4 is pasted to the lower end of the lower groove 904, the transverse cable segment 5 is located below the moving component 9, and the gap between the transverse cable segment 5 and the buckle boss 302 is the thickness of all materials in the lower part of the upper groove 905 in the moving component 9 (including the lower groove 904 and the lower groove wall).

[0050] The advantages of the present invention can be further illustrated by the following experiments:

[0051] 1. Experimental model parameters

[0052] The designed radial rib electrostatically formed thin film reflector antenna has 12 ribs, the parameter diameter of the thin film electrode surface is 1200mm, the internal solid surface diameter is 250mm, the focal length is 1500mm, the rib strip material is spring steel with a thickness of 0.5mm, the adjustment column material is titanium alloy with a diameter of 3mm, the moving component material is resin with a total thickness of 7.5mm, the cable net material is Kevlar with a diameter of 0.75mm, the thin film electrode surface material is 50μm aluminum-plated polyimide film, the fastening screw is a standard part of M1.6×2, and the screw is a standard part of M3×4.

[0053] The membrane electrode surface is flattened to the desired dimensions and then laser cut. The cut membrane electrode surface includes the designed holes for connecting the membrane electrode surface to the cable mesh and the ribs. The vertical cable segments at the cable-membrane connection are adjustable in length.

[0054] 2. Experimental results

[0055] According to the design parameters, the radial rib film reflector antenna film electrode surface positioning connection and adjustable uniform tensioning device are manufactured, such as Figure 6 As shown, the sample of the designed thin film electrode surface positioning connection and adjustable uniform tensioning device installed on the rib strips and cable net.

[0056] After the thin film electrode surface is preliminarily installed using the designed positioning points, the electrode surface uniform tensioning device can be used to further adjust the thin film electrode surface within a certain range to ensure that the thin film electrode surface is uniformly tensioned and wrinkle-free. Then, the shape of the thin film electrode surface is photographed and the vertical cable segments are adjusted based on the photogrammetry fitting results. The thin film electrode surface wrinkles under the action of the adjustment displacement, and then the electrode surface uniform tensioning device is adjusted to ensure that the thin film electrode surface is uniformly tensioned and wrinkle-free. Figure 7 The figure shows the error distribution of the thin film electrode surface after multiple adjustments. The length of the arrow represents the error value from the fitted parabola, and the direction of the arrow represents the error direction from the fitted parabola. The calculated fitting accuracy of the surface is 0.8527mm. Based on the fitting results, the designed radial rib thin film reflector antenna thin film electrode surface positioning connection and adjustable uniform tensioning device can effectively solve the problems of effective positioning, uniform tensioning, and adjustability of the thin film electrode surface, thereby solving the problems of stress concentration and wrinkling on the thin film electrode surface and ensuring the surface accuracy of the thin film electrode surface.

[0057] It should be noted that the installation of the cable-membrane connection device and the electrode surface uniform tensioning device should be carried out when the antenna main rib structure is fully unfolded.

[0058] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A reflector antenna thin film electrode surface positioning connection and adjustable tensioning device, characterized in that: include: The electrode surface uniform tensioning device is arranged on the membrane electrode surface, and is connected to the membrane electrode surface, rib strips and ribs through a movable component with an arched structure, so as to realize the positioning connection between the membrane electrode surface and the cable net; The electrode surface uniform tensioning device includes a pair of movable components in an arched structure, and the openings of the movable components in the pair of arched structures are connected to each other; The moving component is concave arc-shaped, and the ribs are connected by adjusting columns to form the ribs into a concave arc shape, thereby tensioning the film electrode surface into a parabola; The movable component of the arched structure includes an upper groove, a lower groove and a film bead, a rib strip is inserted into the bottom surface of the upper groove, a film electrode surface is pasted above the lower groove, and a film bead is laid on the bonding boundary of the film electrode surface; The cable-membrane connection device clamps the reflective surface limiting cable segment, vertical cable segment and transverse cable segment through male and female buckles, and is used to position the thin film electrode surface and the rib strips and to adjust and evenly tension the thin film electrode surface to form an ideal parabola; The cable-membrane connection device includes a sub-buckle, a female buckle, and a copper tube pressing nose. The sub-buckle is placed above the thin film electrode surface, and the female buckle is placed below the thin film electrode surface. The reflective surface limiting cable segment passes through the sub-buckle and is connected to the thin film reflective surface; the vertical cable segment passes through the female buckle, and the transverse cable segment passes through the female buckle. The vertical cable segment and the transverse cable segment are sewn together at the designed node, and the sewn part is placed inside the female buckle; the copper tube pressing nose clamps the reflective surface limiting cable segment and the vertical cable segment into a whole; The sub-buckle is provided with a transverse cable tightening cone groove, and the mother buckle is provided with a transverse cable tightening cone. The transverse cable tightening cone clamps the transverse cable segment in the slot hole of the transverse cable tightening cone groove which is smaller than the diameter of the cable segment.

2. The reflector antenna thin film electrode surface positioning connection and adjustable tensioning device according to claim 1, characterized in that: The antenna film electrode surface is provided with radial rib strips and ribs, and the electrode surface uniform tensioning device, the rib strips, the film electrode surface and the ribs are connected via an adjusting column.

3. The reflector antenna thin film electrode surface positioning connection and adjustable tensioning device according to claim 1, characterized in that: The middle part of the moving component is connected to the rib strips through an adjusting column, the end of the moving component is pressed and connected to the rib strips through screws, and the moving component is pressed and connected to the film electrode surface and the film strips through set screws.

4. The reflector antenna thin film electrode surface positioning connection and adjustable tensioning device according to claim 3, characterized in that: The depth of the upper groove is slightly greater than the sum of the thickness of the nut and the thickness of the rib strip, the width of the upper groove is slightly less than half the width of the rib strip, and the width of the lower groove is 3 / 4 of the width of the moving component.

5. The reflector antenna thin film electrode surface positioning connection and adjustable tensioning device according to claim 1, characterized in that: There are several positioning openings in the middle of the moving component, which are arranged at intervals along the length direction of the slot above the moving component. The positioning openings are rectangular strip holes, and the adjusting column can move along the positioning openings.

6. The reflector antenna thin film electrode surface positioning connection and adjustable tensioning device according to claim 1, characterized in that: The female buckle is provided with a horizontal female buckle cable hole, a longitudinal female buckle through hole and a female buckle step hole. The transverse cable segment passes through the female buckle cable hole and sews the vertical cable segment and the transverse cable segment at the designed node. The copper tube pressing nose is embedded in the female buckle step hole, and the depth of the female buckle step hole is half of the copper tube pressing nose.

7. The reflector antenna thin film electrode surface positioning connection and adjustable tensioning device according to claim 6, characterized in that: The gap between the transverse cable segment and the buckle boss is the thickness of the lower groove at the lower part of the upper groove in the moving component plus the lower groove wall.

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