A fully metalized electromagnetic bandgap structure reflector assembly and method of use

Abstract

The present application relates to the technical field of reflection plate, especially to a full-metal electromagnetic band gap structure reflection plate assembly and a use method thereof, which comprises a reflection plate, a metal resonance unit and a balun coupling circuit board, a bearing seat assembly is installed on the outside of the metal resonance unit, a resonance unit clamping assembly is embedded and installed on the inside of the bearing seat assembly, a tightening mechanism and a locking and pressing assembly are installed on the inside of the resonance unit clamping assembly, the bearing seat assembly comprises a bearing seat body, an accommodating groove is formed on the inside of the bearing seat body, a guide groove and a sink groove are formed on the inside of the bearing seat body, an anti-rotation hole and an assembly through hole are vertically formed on the bearing seat body, the resonance unit clamping assembly comprises a sleeve seat, and supporting legs are fixedly connected to the two sides of the sleeve seat, in the present application, the device adopts a split detachable supporting structure, solves the problem that the traditional balun circuit board is riveted in one piece and needs to be disassembled as a whole in case of failure, and the faulty circuit board can be replaced alone, thereby reducing the downtime maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of reflector technology, specifically to an all-metal electromagnetic bandgap structure reflector assembly and its usage method. Background Technology

[0002] The all-metal electromagnetic bandgap structure reflector abandons the traditional dielectric substrate and is assembled from a metal base plate and periodically arranged metal resonant units. Relying on the resonant effect of the metal units to form an electromagnetic bandgap and artificial magnetic conductor characteristics, it can realize the in-phase reflection of electromagnetic waves and suppress the propagation of surface waves. It can be used as a low-profile reflector carrier for antennas and has the characteristics of low loss, high temperature resistance and high power carrying capacity. It is suitable for antenna systems under high power and high temperature conditions.

[0003] The resonant unit is generally fixed to the metal base plate by welding, which makes disassembly and assembly difficult and maintenance and replacement inconvenient. Once a local unit is damaged, the whole unit needs to be disassembled. At the same time, it is not possible to quickly replace the resonant unit array of different specifications according to the usage requirements of different operating frequency bands, resulting in poor device versatility.

[0004] Existing technology uses balun coupling circuit boards and dielectric substrates to form an integrated, non-separable structure by riveting. If any balun circuit board fails or is damaged, the faulty board cannot be disassembled and replaced individually; the entire support assembly must be disassembled, resulting in high equipment maintenance time and costs. Therefore, to address the above problems, a fully metallized electromagnetic bandgap structure reflector assembly and its usage method are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an all-metal electromagnetic bandgap structure reflector assembly and its usage method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fully metallized electromagnetic bandgap structure reflector assembly includes a reflector, a metal resonant unit, and a balun coupling circuit board. A carrier assembly is mounted on the outside of the metal resonant unit, and a resonant unit clamping assembly is embedded inside the carrier assembly. A tightening mechanism and a locking and pressing assembly are mounted inside the resonant unit clamping assembly. The carrier assembly includes a carrier body with a receiving groove, a guide groove, and a recessed groove inside. The carrier body has a vertical anti-rotation hole and an assembly through hole. The resonant unit clamping assembly includes a sleeve with legs fixedly connected to both sides. The legs are slidably embedded into the recessed groove inside the guide groove. The sleeve is embedded into the receiving groove, and the upper end of the sleeve protrudes from the upper end of the carrier body.

[0008] As a further optimization of the present invention, the locking and pressing assembly includes a locking cap, a locking screw is rotatably connected to the inner side of the locking cap, a positioning pin is fixedly connected to the bottom end of the locking cap, the locking screw is inserted into the inner side of the assembly through hole, the positioning pin is inserted into the inner side of the anti-rotation hole, and the locking cap is pressed onto the top end of the sleeve.

[0009] The reflector includes a base, and a resonant unit mounting groove is formed on the inner side of the base. The metal resonant unit is inserted into the resonant unit mounting groove. A positioning hole and a threaded hole are formed on the inner side of the base. The bottom end of the support body is attached to the top end of the base. The positioning pin is inserted into the positioning hole. The locking screw is threaded into the threaded hole. The support body is pressed and fixed to the upper end of the reflector by a locking cap.

[0010] The guide groove and the sinking groove are connected, and the sinking groove extends to the lower end of the guide groove.

[0011] The inner side of the sleeve is provided with a sleeve groove, and the sleeve is sleeved on the outside of the metal resonator unit through the sleeve groove.

[0012] An adjustment cavity is provided on the inner side of the sleeve, and a clamping arm is fixedly connected to the inner side of the adjustment cavity. A clamping pad is fixedly connected to one side of the clamping arm. The upper end of the clamping pad is provided with stripes, and the clamping pad is in close contact with the outer side of the metal resonant unit.

[0013] The tightening mechanism includes an adjusting screw, a push block is threadedly connected to the outer side of the adjusting screw, a limit post is slidably connected to the inner side of the push block, and the push block is embedded in the inner side of the adjusting cavity.

[0014] The limiting post is fixedly connected to the inside of the adjusting cavity, the adjusting screw is rotatably connected to the inside of the sleeve, and two tightening mechanisms are provided on the inside of the sleeve.

[0015] The pusher has a second inclined surface at one end, and the clamping arm has a first inclined surface at one end. The second inclined surface is in contact with the side of the first inclined surface.

[0016] A method of using an all-metal electromagnetic bandgap structure reflector assembly

[0017] S1: When using, first assemble the resonant unit clamping assembly and the metal resonant unit: the sleeve is placed on the outside of the metal resonant unit through the sleeve groove, adjust the height of each set of sleeves, rotate the adjusting screw, the screw drives the push block to slide linearly along the limit post, the second inclined surface of the push block presses the first inclined surface of the clamping arm, the clamping arm deforms and retracts inward, and the two sets of tightening mechanisms drive the clamping pad to clamp the metal resonant unit.

[0018] S2: After assembly, slide the support legs into the guide groove until the bottom of the sink. Align the anti-rotation hole, assembly through hole and positioning hole of the base body with the threaded hole. Install the metal resonant unit into the resonant unit mounting groove. Insert the locking screw and positioning pin into the corresponding holes. Tighten the locking screw. Insert the positioning pin into the positioning hole to prevent torsion. Press the locking cap down on the sleeve to lock the support body and the sleeve.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, the device is equipped with an adjustable clamping structure through the set sleeve, push block and clamping pad, which can be adapted to clamp and fix metal resonator units of various specifications and sizes. One set of tooling can be compatible with the assembly requirements of multiple models of metal resonator units, which has strong versatility and reduces the procurement and storage costs of supporting tooling.

[0021] 2. In this invention, the resonant unit clamping assembly and the carrier assembly adopt a separate and detachable structure through the carrier body, anti-rotation hole and assembly through hole. When a single balun coupling circuit board fails, it is not necessary to disassemble the entire support assembly. The faulty circuit board can be disassembled and replaced separately, which simplifies the maintenance process, effectively shortens the equipment downtime and reduces maintenance costs.

[0022] 3. In this invention, the clamping arms, clamping pads, and tightening mechanism are used to achieve clamping and fixing by means of flexible clamping blocks with anti-slip stripes. The disassembly, assembly, and locking processes will not scratch or squeeze the metal resonant unit. During assembly, there is no need to perform secondary processing such as opening holes or bending on the metal resonant unit, and there is no need to modify the original structure of the metal resonant unit, thus reducing the processing steps and processing difficulty of the parts. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the balun-coupled circuit board structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the reflector structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the bearing assembly structure of the present invention;

[0027] Figure 5 This is a cross-sectional structural diagram of the locking and clamping assembly of the present invention;

[0028] Figure 6 This is a schematic diagram of the main structure of the bearing seat of the present invention;

[0029] Figure 7 This is a cross-sectional structural diagram of the resonant unit clamping assembly of the present invention;

[0030] Figure 8 This is a schematic diagram of the tightening mechanism of the present invention.

[0031] In the diagram: 1. Reflector; 11. Base; 12. Positioning hole; 13. Threaded hole; 14. Resonant unit mounting slot; 2. Metal resonant unit; 3. Balun coupling circuit board; 4. Bearing assembly; 41. Bearing body; 42. Receiving groove; 43. Guide groove; 44. Slot; 45. Anti-rotation hole; 46. Assembly through hole; 5. Resonant unit clamping assembly; 51. Sleeve; 52. Support leg; 53. Adjustment cavity; 54. Clamping arm; 55. First inclined surface; 56. Clamping pad; 57. Sleeve groove; 6. Tightening mechanism; 61. Adjusting screw; 62. Push block; 63. Second inclined surface; 64. Limiting post; 7. Locking and pressing assembly; 71. Locking cap; 72. Locking screw; 73. Positioning pin. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Please see Figures 1-8 The present invention provides a technical solution:

[0035] A fully metallized electromagnetic bandgap structure reflector assembly and its usage method are disclosed. The assembly includes a reflector 1, a metal resonant unit 2, and a balun coupling circuit board 3. A carrier assembly 4 is mounted on the outside of the metal resonant unit 2. A resonant unit clamping assembly 5 is embedded in the inside of the carrier assembly 4. An adjusting mechanism 6 and a locking and pressing assembly 7 are mounted inside the resonant unit clamping assembly 5. The carrier assembly 4 includes a carrier body 41. A receiving groove 42 is formed on the inside of the carrier body 41. A guide groove 43 and a recess 44 are formed on the inside of the carrier body 41. An anti-rotation hole 45 and an assembly through hole 46 are formed vertically on the carrier body 41. The resonant unit clamping assembly 5 includes a sleeve 51. Support legs 52 are fixedly connected to both sides of the sleeve 51. The support legs 52 are slidably embedded into the recess 44 inside the guide groove 43. The sleeve 51 is embedded into the receiving groove 42. The upper end of the sleeve 51 protrudes from the upper end of the carrier body 41.

[0036] As a further implementation of this solution, the locking and clamping assembly 7 includes a locking cap 71, a locking screw 72 rotatably connected to the inner side of the locking cap 71, a positioning pin 73 fixedly connected to the bottom end of the locking cap 71, the locking screw 72 inserted into the inner side of the assembly through hole 46, the positioning pin 73 inserted into the inner side of the anti-rotation hole 45, and the locking cap 71 clamped to the top of the sleeve 51. Through the above settings, the positioning pin 73, the anti-rotation hole 45, and the locking screw 72 can restrict the circumferential rotation of the bearing seat body. The detachable assembly is achieved by threaded locking without riveting. The balun coupling circuit board can be disassembled and replaced separately in the future, reducing the workload of maintenance and disassembly.

[0037] As a further implementation of this solution, the reflector 1 includes a base 11, with a resonant unit mounting groove 14 on the inner side of the base 11. A metal resonant unit 2 is inserted into the resonant unit mounting groove 14. A positioning hole 12 and a threaded hole 13 are provided on the inner side of the base 11. The bottom end of the support body 41 is attached to the top end of the base 11. A positioning pin 73 is inserted into the positioning hole 12. A locking screw 72 is threaded into the threaded hole 13. The support body 41 is pressed and fixed to the upper end of the reflector 1 by a locking cap 71. The guide groove 43 and the recess 44 are connected. The sink 44 extends to the lower end of the guide groove 43. Through the above settings, the resonant unit mounting groove 14 limits and stores the metal resonant unit 2, realizing the rapid positioning and pre-installation of the resonant unit, ensuring the array arrangement is neat, improving the overall assembly consistency, and providing stable radial support for the resonant unit. The positioning hole 12 and the positioning pin 73 cooperate to restrict the circumferential torsion of the bearing seat body 41. The threaded hole 13, together with the locking screw 72 and the locking cap 71, realizes detachable clamping and fixing without welding or riveting. The bearing seat assembly can be disassembled and installed separately in the later stage, reducing the difficulty of maintenance and disassembly.

[0038] As a further implementation of this solution, a groove 57 is provided on the inner side of the sleeve 51. The sleeve 51 is fitted onto the outer side of the metal resonant unit 2 through the groove 57. An adjustment cavity 53 is provided on the inner side of the sleeve 51. A clamping arm 54 is fixedly connected to the inner side of the adjustment cavity 53. A clamping pad 56 is fixedly connected to one side of the clamping arm 54. The upper end of the clamping pad 56 has stripes. The clamping pad 56 is in close contact with the outer side of the metal resonant unit 2. Through the above arrangement, the extended connecting structure can form a double-layer guide and downward limit for the support leg 52. During assembly, the support leg can slide in smoothly and completely. The entire assembly is inserted into the recess to prevent the clamping components from shifting vertically or laterally after assembly, thus improving the assembly firmness. The sleeve groove 57 completely wraps around the outer wall of the resonant unit, enabling the sleeve and the resonant unit to quickly and coaxially fit together without additional coaxiality calibration. It is suitable for the initial positioning of resonant units with different outer diameter specifications. Through the above settings, the elastic clamping arm 54, together with the clamping pad 56 with anti-slip stripes, achieves flexible clamping. The stripes increase the friction of the contact surface to prevent the resonant unit from loosening, while avoiding direct scratches of the resonant unit surface by hard metal, without modifying the original structure of the resonant unit.

[0039] As a further implementation of this solution, the tightening mechanism 6 includes an adjusting screw 61, with a push block 62 threadedly connected to the outer side of the adjusting screw 61. A limit post 64 is slidably connected to the inner side of the push block 62. The push block 62 is embedded in the inner side of the adjusting cavity 53. The screw thread drives the push block to achieve stepless clamping force adjustment. The limit post 64 restricts the push block to only make linear translation, preventing the push block from rotating synchronously with the screw, ensuring stable extrusion pressure and smooth adjustment without jamming.

[0040] As a further implementation of this solution, the limiting post 64 is fixedly connected to the inside of the adjusting cavity 53, and the adjusting screw 61 is rotatably connected to the inside of the sleeve 51. Two tightening mechanisms 6 are provided inside the sleeve 51. With the above arrangement, the tightening mechanisms arranged symmetrically on both sides can apply clamping force from both sides simultaneously, so that the metal resonant unit is subjected to uniform force and there will be no unilateral tilting or eccentricity, further expanding the range of resonant unit sizes that can be adapted.

[0041] As a further implementation of this solution, a second inclined surface 63 is provided at one end of the push block 62, and a first inclined surface 55 is provided at one end of the clamping arm 54. The second inclined surface 63 and the first inclined surface 55 are in contact with each other. Through the above arrangement, the double inclined surface contact structure converts the horizontal thrust of the screw into the radial clamping force of the clamping arm. The inclined surface transmission amplifies the clamping force. A small rotation of the screw can achieve a large stroke clamping of the clamping pad. The adjustment is labor-saving and the clamping force is controllable.

[0042] Workflow: In use, firstly, the resonant unit clamping assembly 5 is installed between the metal resonant unit 2 and the resonant unit 5. The slot 57 of the first sleeve 51 is fitted onto the outside of the metal resonant unit 2, so that the end of the metal resonant unit 2 fits against the inside of the sleeve 51. The height of the sleeve 51 relative to the metal resonant unit 2 is adjusted so that multiple sleeves 51 are at roughly the same height. Then, by operating the adjusting screw 61, the adjusting screw 61 rotates inside the sleeve 51, driving the push block 62, which is connected to the outer thread, to move. The push block 62 slides outside the limiting post 64, limiting its movement. The limiting post 64 is fixed inside the adjusting cavity 53. The push block 62, through the second inclined surface 63, presses against the first inclined surface 55 of the clamping arm 54. During the pressing process, the connection between the clamping arm 54 and the sleeve 51 deforms, and the clamping arm 54 moves closer to the metal resonant unit 2. By adjusting the two tightening mechanisms 6 in the sleeve 51, the two clamping pads 56 are clamped to the metal resonant unit 2. The clamping pads 56 have stripes on their sides. The clamping pads 56 can prevent scratching the outer surface of the metal resonant unit 2. At the same time, the stripes of the clamping pads 56 can increase the friction between the clamping pads 56 and the metal resonant unit 2, so that the metal resonant unit 2 and the clamping pads 56 will not easily come loose. This installation method can adapt to the fixing operation of metal resonant units 2 of various sizes, improve the convenience of use, and this fixing method does not require changing the structure of the metal resonant unit 2 itself, reducing the processing difficulty and improving the adaptability to various sizes.

[0043] Align the support leg 52 with the guide groove 43, and slide the support leg 52 inside the guide groove 43 until the support leg 52 is inside the recess 44 and fits against the bottom of the recess 44. The support leg 52 is an extended design. This extended design not only increases the contact area of ​​the bearing body 41 and disperses the pressure, but also makes it less likely for the support leg 52 to twist after it is inside the recess 44. After the multiple bearing bodies 41 and the sleeve 51 are assembled, align the anti-rotation hole 45 of the bearing body 41 with the positioning hole 12, and align the assembly through hole 46 with the threaded hole 13. The bearing body 41 fits against the upper end of the base 11. At this time, the metal resonant unit 2 is inserted into the resonant unit mounting groove 14, and then the locking screw 72 is inserted into the assembly through hole 46. Internally, the positioning pin 73 is inserted into the anti-rotation hole 45. The locking screw 72 is rotated, and the locking screw 72 is threadedly connected to the threaded hole 13 when the locking screw 72 is rotated. During this process, the locking cap 71 and the positioning pin 73 will move downward. The positioning pin 73 is inserted into the positioning hole 12, which can prevent the bearing body 41 from twisting until the bottom end of the locking cap 71 is tightly attached to the top end of the sleeve 51. The sleeve 51 is pressed by the locking cap 71, thereby fixing the bearing body 41 and the sleeve 51. This design changes the traditional integrated design of the balun coupling circuit board and the dielectric base plate. In the later maintenance, it is not necessary to disassemble the entire support assembly. The faulty board can be disassembled and replaced separately, reducing maintenance costs.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully metallized electromagnetic bandgap structure reflector assembly, comprising a reflector (1), a metal resonant unit (2), and a balun coupling circuit board (3), characterized in that: A support assembly (4) is mounted on the outside of the metal resonant unit (2). A resonant unit clamping assembly (5) is embedded inside the support assembly (4). An adjusting mechanism (6) and a locking and pressing assembly (7) are mounted inside the resonant unit clamping assembly (5). The support assembly (4) includes a support body (41). A receiving groove (42) is opened inside the support body (41). A guide groove (43) and a recess (44) are opened inside the support body (41). 4) The bearing seat body (41) is vertically provided with an anti-rotation hole (45) and an assembly through hole (46). The resonant unit clamping assembly (5) includes a sleeve (51). Both sides of the sleeve (51) are fixedly connected with support legs (52). The support legs (52) are slidably embedded into the sink (44) through the inner side of the guide groove (43). The sleeve (51) is embedded into the inner side of the receiving groove (42). The upper end of the sleeve (51) protrudes from the upper end of the bearing seat body (41).

2. The all-metallic electromagnetic bandgap structure reflector assembly according to claim 1, characterized in that: The locking and clamping assembly (7) includes a locking cap (71), a locking screw (72) is rotatably connected to the inner side of the locking cap (71), a positioning pin (73) is fixedly connected to the bottom end of the locking cap (71), the locking screw (72) is inserted into the inner side of the assembly through hole (46), the positioning pin (73) is inserted into the inner side of the anti-rotation hole (45), and the locking cap (71) is clamped on the top of the sleeve (51).

3. The all-metallic electromagnetic bandgap structure reflector assembly according to claim 2, characterized in that: The reflector (1) includes a base (11), and a resonant unit mounting groove (14) is provided on the inner side of the base (11). The metal resonant unit (2) is inserted into the inner side of the resonant unit mounting groove (14). A positioning hole (12) and a threaded hole (13) are provided on the inner side of the base (11). The bottom end of the bearing body (41) is attached to the top end of the base (11). The positioning pin (73) is inserted into the inner side of the positioning hole (12). The locking screw (72) is threaded into the inner side of the threaded hole (13). The bearing body (41) is pressed and fixed to the upper end of the reflector (1) by the locking cap (71).

4. The all-metallic electromagnetic bandgap structure reflector assembly according to claim 1, characterized in that: The guide groove (43) and the sinking groove (44) are connected, and the sinking groove (44) extends to the lower end of the guide groove (43).

5. The all-metallic electromagnetic bandgap structure reflector assembly according to claim 1, characterized in that: The inner side of the sleeve (51) is provided with a sleeve groove (57), and the sleeve (51) is sleeved on the outside of the metal resonant unit (2) through the sleeve groove (57).

6. The all-metallic electromagnetic bandgap structure reflector assembly according to claim 1, characterized in that: An adjustment cavity (53) is provided on the inner side of the sleeve (51). A clamping arm (54) is fixedly connected to the inner side of the adjustment cavity (53). A clamping pad (56) is fixedly connected to one side of the clamping arm (54). Stripes are provided on the upper end of the clamping pad (56). The clamping pad (56) is in close contact with the outer side of the metal resonant unit (2).

7. The all-metallic electromagnetic bandgap structure reflector assembly according to claim 6, characterized in that: The tightening mechanism (6) includes an adjusting screw (61), a push block (62) is threadedly connected to the outside of the adjusting screw (61), a limit post (64) is slidably connected to the inside of the push block (62), and the push block (62) is embedded in the inside of the adjusting cavity (53).

8. The all-metallized electromagnetic bandgap structure reflector assembly according to claim 7, characterized in that: The limiting post (64) is fixedly connected to the inside of the adjusting cavity (53), and the adjusting screw (61) is rotatably connected to the inside of the sleeve (51). Two tightening mechanisms (6) are provided inside the sleeve (51).

9. The all-metallized electromagnetic bandgap structure reflector assembly according to claim 8, characterized in that: The push block (62) has a second inclined surface (63) at one end, and the clamping arm (54) has a first inclined surface (55) at one end. The second inclined surface (63) is in contact with the side of the first inclined surface (55).

10. A method of using an all-metallic electromagnetic bandgap structure reflector assembly according to any one of claims 1-9, characterized in that: S1: When using, first assemble the resonant unit clamping assembly (5) and the metal resonant unit (2): the sleeve (51) is sleeved on the outside of the metal resonant unit (2) through the sleeve groove (57), adjust the height of each set of sleeves, rotate the adjusting screw (61), the screw drives the push block (62) to slide linearly along the limiting post (64), the second inclined surface (63) of the push block squeezes the first inclined surface (55) of the clamping arm (54), the clamping arm deforms and retracts inward, and the two sets of tightening mechanisms (6) drive the clamping pad (56) to clamp the metal resonant unit (2); S2: After assembly, slide the support leg (52) into the guide groove (43) until the bottom of the sink (44), align the anti-rotation hole (45) and assembly through hole (46) of the bearing body (41) with the positioning hole (12) and threaded hole (13) of the base (11), install the metal resonant unit (2) into the resonant unit mounting groove (14), insert the locking screw (72) and positioning pin (73) into the corresponding holes respectively, tighten the locking screw (72), insert the positioning pin (73) into the positioning hole (12) to prevent torsion, press the locking cap (71) down the sleeve (51) to lock the bearing body (41) and the sleeve (51).

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