A ferrite-based thin-film microwave coupling plate load

Abstract

The present invention relates to the field of microwave technology, and specifically to a ferrite-based thin film microwave coupling sheet load, comprising: a placement groove and a storage groove are provided on the surface of the ferrite, an output port and an input port are provided in the placement groove, a coupling port is provided in the storage groove, a coupling end resistor plate is placed in a positioning frame, a positioning groove is provided on the side of the positioning frame, and a traction plate is provided in the positioning groove; the beneficial effect is: the ferrite-based thin film microwave coupling sheet load proposed by the present invention greatly reduces the overall volume of the device by integrating the coupler with the load and using ferrite as a substrate when in use, and is easy to integrate; the transmission of power signals can be effectively distributed through the provision of an output port, an input port, a coupling port and a coupling end resistor plate, and greatly improves the product consistency stability, surface flatness, and coupling accuracy, and can perform microwave adjustment operations well.

Description

Technical Field

[0001] The present invention relates to the field of microwave technology, and specifically to a thin-film microwave coupling chip load based on ferrite. Background Technique

[0002] In a microwave system, it is often necessary to divide a path of microwave power proportionally into several paths, which is the problem of power distribution. The component that realizes this function is called a power distribution component, namely a coupler. With the development of optical fiber communication, mobile communication, satellite communication, etc. towards higher working frequencies, the coupler plays an indispensable role in the microwave system, and its performance will directly affect the performance and stability of the system. In a passive device isolator, the coupling end of the required coupler usually needs to be connected with a load.

[0003] Currently, in the industry, a chip resistor is usually welded inside the cavity as a load. When the frequency band reaches 8G, various indicators will decline due to the internal welded resistor, and the existing external loads on the market are too large in volume and too high in cost, and can no longer meet the requirements of the radar and communication systems for the miniaturization of isolators.

[0004] Therefore, the present invention proposes a thin-film microwave coupling chip load based on ferrite to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a thin-film microwave coupling chip load based on ferrite to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A thin-film microwave coupling chip load based on ferrite, the thin-film microwave coupling chip load based on ferrite includes: ferrite, a placement groove and a storage groove are formed on the surface of the ferrite, an output port and an input port are arranged in the placement groove, and a coupling port is arranged in the storage groove;

[0007] A positioning frame, a coupling end resistor plate is placed in the positioning frame, a positioning groove is formed on the side surface of the positioning frame, and a traction plate is arranged in the positioning groove.

[0008] Preferably, the output port and the input port are fixedly connected to the surface of the placement groove, the output port and the input port are connected to each other through a first wire, and the upper surfaces of the output port and the input port are flush with the surface of the ferrite.

[0009] Preferably, the positioning frame is fixedly connected to the storage groove, the coupling port is fixedly connected to the storage groove, the coupling port and the coupling end resistor plate are connected through a second wire, the second wire is fixedly connected to the inside of the storage groove, and the second wire is arranged in an overall "C" shape.

[0010] Preferably, heat dissipation openings are provided on the side surface of the positioning frame. There are multiple groups of heat dissipation openings, and the multiple groups of heat dissipation openings are respectively distributed on the four side surfaces of the positioning frame. The heat dissipation openings are located at the bottom of the positioning frame. A support plate is provided on the inner side surface of the positioning frame. The support plate is in the shape of a square plate. There are multiple groups of support plates, and the multiple groups of support plates are linearly arranged at equal intervals on the inner side surface of the positioning frame. A soft rubber pad is adhered to the surface of the support plate. The soft rubber pad is in the shape of a square plate as a whole, and the length of the long side of the soft rubber pad is less than the length of the long side of the support plate side surface.

[0011] Preferably, there are two groups of positioning grooves, and the two groups of positioning grooves are symmetrically distributed about the left and right of the positioning frame. The traction plate can be displaced in the positioning groove. The traction plate is in the shape of a "C"-shaped plate as a whole. A traction ring is provided on the outer side surface of the traction plate. The traction plate can cover the side surface of the positioning groove. When the traction plate is not in use in the positioning groove, it is flush with the side surface of the positioning frame.

[0012] Preferably, moving grooves are provided on the surface of the positioning frame. The side surface of the moving groove communicates with the positioning groove. The moving groove is in the shape of a square plate as a whole. There are multiple groups of moving grooves, and the multiple groups of moving grooves are respectively distributed on the surfaces of the four corners of the positioning frame. A positioning card slot is provided on the surface of the moving groove, and a limiting plate can be inserted into the positioning card slot. A baffle is provided at the end surface of the limiting plate, and the baffle can close the end surface of the moving groove. The limiting plate is in the shape of a square plate.

[0013] Preferably, a support rod is provided at the end surface of the moving groove. A limiting spring and a moving plate are sleeved on the surface of the support rod. The moving plate can be displaced on the support rod. The moving plate is in the shape of a square plate as a whole. One end of the limiting spring is fixedly connected to the end surface of the moving groove, and the other end of the limiting spring is fixedly connected to the side surface of the moving plate. The inner side surface of the baffle contacts the end surface of the support rod, and the side surface of the moving plate is connected to the side surface of the traction plate.

[0014] Preferably, a fixing plate is provided on the side surface of the moving plate. The fixing plate is in the shape of an "L"-shaped plate as a whole. A limiting groove is provided on the surface of the fixing plate, and a positioning screw is provided in the limiting groove. There are multiple groups of positioning screws, and the multiple groups of positioning screws are linearly arranged at equal intervals on the surface of the limiting groove.

[0015] Preferably, a mounting plate is sleeved on the surface of the positioning screw, and a limiting nut is screwed on the surface of the positioning screw. One end of the mounting plate is provided with a rubber plate. The rubber plate is in the shape of an "L"-shaped plate as a whole. A buffer cavity is provided on the surface of the rubber plate, and rubber sheets are provided in the buffer cavity. There are multiple groups of rubber sheets, and the multiple groups of rubber sheets are evenly fixed in the buffer cavity. A limiting card slot is provided on the side surface of the coupling end resistor plate, and the rubber plate and the fixing plate can be inserted into the limiting card slot. The side height of the rubber plate is higher than the side height of the moving plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The ferrite-based thin-film microwave coupling sheet load proposed in the present invention greatly reduces the overall volume of the device by integrating the coupler and the load and using ferrite as the substrate when in use, which is convenient for integration. The transmission of power signals can be effectively distributed through the arrangement of the output port, the input port, the coupling port and the coupling end resistor plate, and the consistency stability, surface flatness and coupling accuracy of the product are greatly improved, and microwave adjustment operations can be well performed. This avoids the current industry practice of welding chip resistors inside the cavity as loads. When the frequency band reaches 8G, various indicators will decrease due to the internal welding resistors, and the existing external loads on the market are too large in size and too costly to meet the demand for miniaturization of isolators in radar and communication systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a side view of the structure of the present invention;

[0020] Figure 3 It is a top view of the structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure after the structural positioning frame and the coupling end resistor plate of the present invention are installed;

[0022] Figure 5 This is a schematic diagram of the structural positioning frame of the present invention;

[0023] Figure 6 for Figure 5 Enlarged structural diagram of point A in the middle

[0024] Figure 7 It is a partial cross-sectional view of the structural positioning frame of the present invention;

[0025] Figure 8 for Figure 7 The enlarged structural diagram at B in the middle;

[0026] Fig. 9 This is a schematic diagram of the structure of the traction plate of the present invention;

[0027] Fig.10 for Fig. 9 The enlarged structural diagram at C in the middle;

[0028] Fig.11 This is a schematic diagram of the structure of the buffer pad of the present invention.

[0029] In the figure: 1. ferrite; 2. placement slot; 3. storage slot; 4. output port; 5. input port; 6. coupling port; 7. positioning frame; 8. coupling end resistor plate; 9. positioning slot; 10. traction plate; 11. first wire; 12. second wire; 13. heat dissipation port; 14. support frame plate; 15. traction ring; 16. moving slot; 17. positioning card slot; 18. limit plate; 19. baffle; 20. support rod; 21. limit spring; 22. moving plate; 23. fixed plate; 24. limit slot; 25. soft rubber pad; 26. positioning screw; 27. mounting plate; 28. limit nut; 29. ​​rubber plate; 30. buffer cavity; 31. rubber sheet; 32. limit card slot. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1-Figure 11 The present invention provides a technical solution: a ferrite-based thin film microwave coupling sheet load, the ferrite-based thin film microwave coupling sheet load comprising: a ferrite 1, a placement groove 2 and a receiving groove 3 are provided on the surface of the ferrite 1, an output port 4 and an input port 5 are provided in the placement groove 2, and a coupling port 6 is provided in the receiving groove 3;

[0032] A positioning frame 7, in which a coupling end resistor plate 8 is placed, a positioning groove 9 is provided on the side of the positioning frame 7, and a traction plate 10 is provided in the positioning groove 9;

[0033] When in use, the overall volume of the device is greatly reduced by integrating the coupler with the load and using ferrite 1 as the base material, which is convenient for integration. The output port 4, the input port 5, the coupling port 6 and the coupling end resistor plate 8 are set to effectively distribute the transmission of the power signal, and greatly improve the consistency and stability of the product, the surface flatness, and the coupling accuracy, and can perform microwave adjustment operations well. The input port 5, the output port 4, the coupling port 6, and the coupling end resistor plate 8 are formed by a vacuum sputtering process, and the coupling end resistor plate 8 is laser-trimmed, which greatly reduces the production time and improves the production efficiency.

[0034] Embodiment 2: On the basis of Embodiment 1, a positioning frame 7 is provided for the convenience of quickly installing the coupling-end resistor plate 8. There are two groups of positioning grooves 9, and the two groups of positioning grooves 9 are symmetrically distributed about the left and right of the positioning frame 7. The traction plate 10 can be displaced in the positioning groove 9. The traction plate 10 is integrally in an "L"-shaped plate structure. A traction ring 15 is arranged on the outer side surface of the traction plate 10. The traction plate 10 can cover the side surface of the positioning groove 9. When the traction plate 10 is not in use in the positioning groove 9, it is flush with the side surface of the positioning frame 7. A moving groove 16 is formed on the surface of the positioning frame 7, and the side surface of the moving groove 16 communicates with the positioning groove 9. The moving groove 16 is integrally in a square plate structure. There are multiple groups of moving grooves 16, and the multiple groups of moving grooves 16 are respectively distributed on the surfaces of the four corners of the positioning frame 7. A positioning card slot 17 is formed on the surface of the moving groove 16, and a limiting plate 18 can be inserted into the positioning card slot 17. A baffle 19 is arranged at the end surface of the limiting plate 18, and the baffle 19 can close the end surface of the moving groove 16. The limiting plate 18 is in a square plate structure. A support rod 20 is arranged at the end surface of the moving groove 16, and a limiting spring 21 and a moving plate 22 are sleeved on the surface of the support rod 20. The moving plate 22 can be displaced on the support rod 20. The moving plate 22 is integrally in a square plate structure. One end of the limiting spring 21 is fixedly connected to the end surface of the moving groove 16, and the other end of the limiting spring 21 is fixedly connected to the side surface of the moving plate 22. The inner side surface of the baffle 19 contacts the end surface of the support rod 20, and the side surface of the moving plate 22 is connected to the side surface of the traction plate 10;

[0035] During use, first, pull the two traction plates 10 outwards through the traction ring 15 so that the traction plates 10 drive the fixing plate 23 to move backward. Then, the coupling-end resistor plate 8 can be placed in the positioning frame 7. Release the traction ring 15 so that the moving plate 22 is reset under the elastic force of the limiting spring 21. Thus, the fixing plate 23 can be inserted into the limiting card slot 32 in cooperation with the rubber plate 29, and the coupling-end resistor plate 8 can be fixedly installed in the positioning frame 7, which is convenient for installing and removing the coupling-end resistor plate 8 and avoids the problem that it is inconvenient to disassemble when welded in the ferrite 1. The setting of the limiting spring 21 can conveniently limit the fixing plate 23 to prevent the fixing plate 23 from disengaging from the limiting card slot 32, and it is also convenient for the moving plate 22 to automatically reset after pulling the moving plate 22, which is convenient for use.

[0036] By inserting the limiting plate 18 into the positioning card slot 17, it is convenient to use the baffle 19 to limit the end surface of the support rod 20 to prevent the moving plate 22 from disengaging from the support rod 20. The baffle 19 can also cooperate with the traction plate 10 to close the side surfaces of the positioning groove 9 and the moving groove 16, playing a role of filling and beautifying.

[0037] The integrated ferrite 1 is convenient for integration. The output port 4 and the input port 5 are fixedly connected to the surface of the placement groove 2. The output port 4 and the input port 5 are connected to each other through the first wire 11. The upper surfaces of the output port 4 and the input port 5 are flush with the surface of the ferrite 1. The positioning frame 7 is fixedly connected to the storage groove 3. The coupling port 6 is fixedly connected to the storage groove 3. The coupling port 6 and the coupling end resistor plate 8 are connected through the second wire 12. The second wire 12 is fixedly connected to the inside of the storage groove 3. The second wire 12 is arranged in an overall "C"-shaped structure.

[0038] During use, the ferrite 1 is polished. By integrating the coupling port 6 with each port and using the ferrite 1 as the base material, the volume of the device is greatly reduced, which is convenient for integration.

[0039] Embodiment 3: On the basis of Embodiment 2, in order to improve safety, a support plate 14 and a rubber plate 29 are provided. The positioning frame 7 is provided with heat dissipation openings 13 on the side. There are multiple groups of heat dissipation openings 13, and multiple groups of heat dissipation openings 13 are respectively distributed on the four sides of the positioning frame 7. The heat dissipation openings 13 are located at the bottom of the positioning frame 7. A support plate 14 is arranged on the inner side of the positioning frame 7. The support plate 14 is in the shape of a square plate. There are multiple groups of support plates 14, and multiple groups of support plates 14 are linearly arranged at equal intervals on the inner side of the positioning frame 7. A soft rubber pad 25 is glued to the surface of the support plate 14. The soft rubber pad 25 is in the shape of a square plate as a whole. The length of the long side of the side of the soft rubber pad 25 is less than the length of the long side of the side of the support plate 14. An installation plate 27 is sleeved on the surface of the positioning screw 26, and a limit nut 28 is screwed on the surface of the positioning screw 26. One end of the installation plate 27 is provided with a rubber plate 29. The rubber plate 29 is in the shape of an "L"-shaped plate as a whole. A buffer cavity 30 is provided on the surface of the rubber plate 29. Multiple rubber sheets 31 are arranged in the buffer cavity 30. Multiple groups of rubber sheets 31 are evenly fixed in the buffer cavity 30. A limit card slot 32 is provided on the side of the coupling end resistor plate 8. The rubber plate 29 and the fixed plate 23 can be inserted into the limit card slot 32. The side height of the rubber plate 29 is higher than the side height of the moving plate 22.

[0040] When in use, firstly, a heat dissipation port 13 opened at the bottom of the positioning frame 7 can be used to facilitate heat dissipation of the bottom of the coupling-end resistor plate 8 when working. The setting of the support frame plate 14 can facilitate the coupling-end resistor plate 8 to use the heat dissipation port 13 to dissipate heat. Then, after the coupling-end resistor plate 8 is fixed by using the fixing plate 23 and the rubber plate 29, the rubber plate 29 and the soft rubber pad 25 can be used to buffer the coupling-end resistor plate 8 to avoid the problem that the shaking impact force caused when the device is taken and shaken may cause damage to the inside of the coupling-end resistor plate 8. The buffer cavity 30 opened on the surface of the rubber plate 29 can improve the buffering effect of the rubber plate 29 on the coupling-end resistor plate 8. The setting of the rubber sheet 31 can support the inside of the rubber plate 29 on the one hand, and on the other hand, it is convenient to quickly reset the compressed rubber plate 29. The side height of the rubber plate 29 is higher than the side height of the moving plate 22, which can facilitate buffering the coupling-end resistor plate 8 so that the rubber plate 29 can withstand the impact of the coupling-end resistor plate 8.

[0041] A fixed plate 23 is disposed on the side of the movable plate 22. The fixed plate 23 is an "L"-shaped plate structure as a whole. A limiting groove 24 is provided on the surface of the fixed plate 23. A positioning screw 26 is disposed in the limiting groove 24. The positioning screw 26 is provided in multiple groups. The multiple groups of positioning screws 26 are linearly arranged equidistantly on the surface of the limiting groove 24.

[0042] When in use, the mounting plate 27 can be conveniently fixed on the positioning screw 26 by cooperating with the limiting nut 28. When the rubber plate 29 needs to be taken out, the limiting nut 28 can be directly rotated to disengage the limiting nut 28 from the positioning screw 26, which is more convenient.

[0043] In actual use, the overall volume of the device is greatly reduced by integrating the coupler with the load and using ferrite 1 as the substrate, which is convenient for integration. The output port 4, the input port 5, the coupling port 6 and the coupling end resistor plate 8 are set to effectively distribute the transmission of the power signal, and greatly improve the consistency and stability of the product, the surface flatness, and the coupling accuracy, so that microwave adjustment operations can be performed well. The input port 5, the output port 4, the coupling port 6, and the coupling end resistor plate 8 are formed by a vacuum sputtering process, and the coupling end resistor plate 8 is laser-trimmed, which greatly reduces the production time and improves the production efficiency. This avoids the current industry practice of welding chip resistors inside the cavity as loads. When the frequency band reaches 8G, various indicators will decrease due to the internal welding resistance, and the existing external loads on the market are too large in size and too expensive to meet the demand for miniaturization of isolators in radar and communication systems.

[0044] 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. A ferrite-based thin film microwave coupling sheet load, characterized in that: The ferrite-based thin-film microwave coupling chip load includes: a ferrite (1), a placement groove (2) and a storage groove (3) are formed on the surface of the ferrite (1), an output port (4) and an input port (5) are arranged in the placement groove (2), and a coupling port (6) is arranged in the storage groove (3); A positioning frame (7), a coupling end resistor plate (8) is placed in the positioning frame (7), a positioning groove (9) is formed on the side surface of the positioning frame (7), a traction plate (10) is arranged in the positioning groove (9), a moving groove (16) is formed on the surface of the positioning frame (7), a support rod (20) is arranged at the end face of the moving groove (16), a limiting spring (21) and a moving plate (22) are sleeved on the surface of the support rod (20), a fixing plate (23) is arranged on the side surface of the moving plate (22), the fixing plate (23) is integrally in an "L"-shaped plate structure, a limiting groove (24) is formed on the surface of the fixing plate (23), and a positioning screw (26) is arranged in the limiting groove (24); An installation plate (27) is sleeved on the surface of the positioning screw (26), a limiting nut (28) is screwed on the surface of the positioning screw (26), one end of the installation plate (27) is provided with a rubber plate (29), the rubber plate (29) is integrally in an "L"-shaped plate structure, a buffer cavity (30) is formed on the surface of the rubber plate (29), a rubber sheet (31) is arranged in the buffer cavity (30), multiple groups of rubber sheets (31) are provided, the multiple groups of rubber sheets (31) are uniformly fixed in the buffer cavity (30), a limiting card slot (32) is formed on the side surface of the coupling end resistor plate (8), the rubber plate (29) and the fixing plate (23) are inserted into the limiting card slot (32), and the side surface height of the rubber plate (29) is higher than the side surface height of the moving plate (22).

2. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: The output port (4) and the input port (5) are fixedly connected to the surface of the placement groove (2), the output port (4) and the input port (5) are connected to each other through a first wire (11), and the upper surfaces of the output port (4) and the input port (5) are flush with the surface of the ferrite (1).

3. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: The positioning frame (7) is fixedly connected in the storage groove (3), the coupling port (6) is fixedly connected in the storage groove (3), the coupling port (6) and the coupling end resistor plate (8) are connected through a second wire (12), the second wire (12) is fixedly connected inside the storage groove (3), and the second wire (12) is arranged in an overall "C"-shaped structure.

4. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: The side surface of the positioning frame (7) is provided with heat dissipation openings (13), multiple groups of heat dissipation openings (13) are provided, the multiple groups of heat dissipation openings (13) are respectively distributed on the four side surfaces of the positioning frame (7), the heat dissipation openings (13) are located at the bottom of the positioning frame (7), a support frame plate (14) is arranged on the inner side surface of the positioning frame (7), the support frame plate (14) is in a square plate structure, multiple groups of support frame plates (14) are provided, the multiple groups of support frame plates (14) are linearly arranged at equal intervals with respect to the inner side surface of the positioning frame (7), a soft rubber pad (25) is glued on the surface of the support frame plate (14), the soft rubber pad (25) is integrally in a square plate structure, and the length of the long side of the side surface of the soft rubber pad (25) is less than the length of the long side of the side surface of the support frame plate (14).

5. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: There are two sets of the positioning grooves (9), and the two sets of positioning grooves (9) are symmetrically distributed about the positioning frame (7) left and right. The traction plate (10) displaces within the positioning groove (9). The traction plate (10) is integrally in an "L"-shaped plate structure. A traction ring (15) is arranged on the outer side surface of the traction plate (10). The traction plate (10) covers the side surface of the positioning groove (9). When the traction plate (10) is not in use within the positioning groove (9), it is flush with the side surface of the positioning frame (7).

6. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: The side surface of the moving groove (16) communicates with the positioning groove (9). The moving groove (16) is integrally in a square plate structure. There are multiple sets of moving grooves (16), and the multiple sets of moving grooves (16) are respectively distributed on the surfaces of the four corners of the positioning frame (7). A positioning card slot (17) is formed on the surface of the moving groove (16). A limiting plate (18) is inserted into the positioning card slot (17). A baffle (19) is arranged at the end surface of the limiting plate (18). The baffle (19) closes the end surface of the moving groove (16). The limiting plate (18) is in a square plate structure.

7. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: The moving plate (22) displaces on the support rod (20). The moving plate (22) is integrally in a square plate structure. One end of the limiting spring (21) is fixedly connected to the end surface of the moving groove (16), and the other end of the limiting spring (21) is fixedly connected to the side surface of the moving plate (22). The inner side surface of the baffle (19) contacts the end surface of the support rod (20). The side surface of the moving plate (22) is connected to the side surface of the traction plate (10).

8. The ferrite-based thin film microwave coupling sheet load according to claim 1, characterized in that: There are multiple sets of positioning screws (26), and the multiple sets of positioning screws (26) are arranged at equal intervals linearly on the surface of the limiting groove (24).

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