Water-cooled P-waveband high-power waveguide circulator

Abstract

The utility model discloses a water-cooled P-waveband high-power waveguide circulator. The water-cooled P-waveband high-power waveguide circulator comprises a Y-shaped waveguide cavity, an upper microwave circulation assembly and a lower microwave circulation assembly, wherein the upper microwave circulation assembly and the lower microwave circulation assembly are fixedly assembled in the Y-shaped waveguide cavity. Each of the upper microwave annular assembly and the lower microwave annular assembly is provided with a Y-junction type matching step, a hollow cylindrical matching step with one sealed end, a water cooling assembly and a magnetic steel assembly. The water-cooling assembly is provided with a water inlet pipe, a water outlet pipe and a water-cooling main body with a concentric-square-shaped coiled waterway, the water-cooling main body is assembled at the bottom of the cavity of the hollow cylindrical matching step, the water outlet end of the water inlet pipe is connected with a water inlet of the concentric-square-shaped coiled waterway, and the water inlet end of the water outlet pipe is connected with a water outlet of the concentric-square-shaped coiled waterway. According to the utility model, when the circulator continuously works at high power, heat can be continuously dissipated in a water cooling manner, the use temperature of the waveguide circulator is reduced, and the working performance of the waveguide circulator can be effectively ensured.

Description

Technical Field

[0001] This utility model relates to the field of waveguide circulator technology, and in particular to a water-cooled P-band high-power waveguide circulator. Background Technology

[0002] A waveguide circulator is a non-reciprocal multiport device typically used in radio communication or radar systems to enable antenna sharing and isolation between receivers and transceivers.

[0003] The principle of a waveguide circulator is based on the anisotropic properties of a ferrite material biased by a magnetic field. By utilizing the gyromagnetic effect generated by the ferrite material under the action of an external DC magnetic field, the microwave incident on the circulator is deflected at a certain angle, so that the microwave signal can only be transmitted sequentially from one port to the next in one direction, and cannot be transmitted in the opposite direction, thus realizing the circular transmission of the signal.

[0004] P-band high-power waveguide circulators are used in high-power microwave applications and can withstand large microwave powers, typically 50–150 kW continuous waves. Under continuous high-power conditions, the temperature of the ferrite material inside the P-band high-power waveguide circulator will exceed its safe operating temperature, causing the ferrite material to lose its gyromagnetic effect or even crack, resulting in damage and loss of function of the P-band high-power waveguide circulator. Utility Model Content

[0005] Therefore, it is necessary to provide a water-cooled P-band high-power waveguide circulator to address the aforementioned technical problems. This circulator can continuously dissipate heat through water cooling when operating at high power, thereby reducing the operating temperature of the waveguide circulator and effectively ensuring its performance.

[0006] This utility model provides a water-cooled P-band high-power waveguide circulator, including a Y-shaped waveguide cavity and an upper microwave circulator assembly and a lower microwave circulator assembly fixedly assembled inside the Y-shaped waveguide cavity;

[0007] The upper microwave ring assembly and the lower microwave ring assembly are fixedly assembled at the top and bottom of the Y-shaped waveguide cavity, respectively, with their upper and lower parts being relatively fixed.

[0008] Both the upper microwave ring assembly and the lower microwave ring assembly are equipped with a Y-junction matching step, a hollow cylindrical matching step sealed at one end, a water-cooling assembly, and a magnet assembly.

[0009] The Y-junction matching step is fixedly connected to the Y-type waveguide cavity. The Y-junction matching step is provided with a first assembly hole. The open side of the hollow cylindrical matching step is matched and fixedly connected to the first assembly hole.

[0010] The water-cooling assembly is equipped with an inlet pipe, an outlet pipe, and a water-cooling body with a U-shaped coiled water path. The water-cooling body is assembled at the bottom of a hollow cylindrical cavity with matching steps. The outlet end of the inlet pipe is connected to the inlet of the U-shaped coiled water path, and the inlet end of the outlet pipe is connected to the outlet of the U-shaped coiled water path.

[0011] The magnet assembly is located in the middle of the Y-shaped matching step and the hollow cylindrical matching step, and abuts against the side of the water-cooled body near the opening of the hollow cylindrical matching step. Several ferrites arranged in a regular hexagon are fixedly connected to the bottom outer side of the hollow cylindrical matching step.

[0012] In one embodiment, the Y-shaped waveguide cavity includes an upper cover plate and a lower cover plate that are parallel to each other, and a vertical plate that is fixedly connected to the upper cover plate and the lower cover plate to form the waveguide cavity.

[0013] A second assembly hole and a pressure plate are provided in the middle of the upper cover plate and the lower cover plate, and the pressure plate is fixedly connected to the outside of the second assembly hole.

[0014] In one embodiment, the magnet assembly is provided with an outer magnet, an inner magnet, a support plate, and multiple support columns;

[0015] The support plate is fixedly connected to the inside of the second assembly hole, forming an assembly cavity with the pressure plate, and the external magnet is set in the assembly cavity;

[0016] The inner magnet abuts against the water-cooled main body, and the support column is vertically fixed between the support plate and the inner magnet.

[0017] The distance between the bottom of the support plate and the Y-shaped matching step is greater than or equal to the diameter of the inlet and / or outlet pipes.

[0018] In one embodiment, the Y-shaped matching step is provided with a weight-reducing groove, one side of the opening of the weight-reducing groove faces the upper cover plate or the lower cover plate, and a reinforcing rib is fixedly provided inside the weight-reducing groove.

[0019] The mounting surface of the Y-junction matching step is provided with a mounting groove, the inside of which is filled with indium foil, and the depth of the mounting groove is 0.04 to 0.06 mm.

[0020] In one embodiment, the edges of both the Y-junction matching step and the hollow cylindrical matching step facing the center of the Y-type waveguide cavity are rounded.

[0021] In one embodiment, the side of the water-cooled body that abuts against the bottom of the hollow cylindrical matching step is coated with thermally conductive silicone grease.

[0022] In one embodiment, both the upper cover plate and the lower cover plate are provided with two through holes. The two through holes of the upper cover plate are respectively connected to the water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe of the upper microwave ring component. The two through holes of the lower cover plate are respectively connected to the water inlet end of the water inlet pipe and the water outlet end of the water outlet pipe of the lower microwave ring component.

[0023] In one embodiment, all three openings of the Y-shaped waveguide cavity are fixedly fitted with support flanges.

[0024] The beneficial effects of this utility model are:

[0025] (1) By setting a water-cooling component inside the hollow cylindrical matching step, the present invention can absorb the heat generated by the ferrite by water cooling when the circulator is working, thereby reducing the operating temperature of the waveguide circulator.

[0026] (2) The water channel of the water-cooled body of this utility model is a U-shaped coiled water channel. The entire water channel is a water channel from the inlet to the outlet. This water channel arrangement can increase the cooling area while constraining the flow direction of the coolant. It can avoid the presence of excess air inside the water-cooled body due to different placement directions of the waveguide circulator, thus reducing the heat dissipation effect. Attached Figure Description

[0027] Figure 1 A schematic diagram of the overall structure of the water-cooled P-band high-power waveguide circulator provided in an embodiment of this utility model;

[0028] Figure 2 A top view of the water-cooled P-band high-power waveguide circulator provided in an embodiment of this utility model;

[0029] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along plane AA;

[0030] Figure 4 A cross-sectional view of a vertical plane along a vertical plate of a water-cooled P-band high-power waveguide circulator provided in an embodiment of this utility model.

[0031] Figure 5 This is a schematic diagram of the structure of the U-shaped coiled waterway provided in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic diagram of the structure of the Y-shaped waveguide cavity without the pressure plate provided in an embodiment of the present invention;

[0033] Figure 7 A schematic diagram of the structure of the Y-shaped matching step provided in an embodiment of this utility model;

[0034] Figure 8A schematic diagram showing the assembly relationship between the bracket and the Y-shaped waveguide cavity provided in an embodiment of this utility model.

[0035] Explanation of reference numerals in the attached drawings: 100, Y-shaped waveguide cavity; 110, upper cover plate; 120, lower cover plate; 130, vertical plate; 140, pressure plate; 150, second mounting hole; 200, upper microwave ring assembly; 300, lower microwave ring assembly; 400, Y-shaped matching step; 410, weight reduction groove; 420, reinforcing rib; 430, mounting groove; 440, first mounting hole; 500, hollow cylindrical matching step; 600, water-cooling assembly; 610, water inlet pipe; 620, water outlet pipe; 630, water-cooling main body; 700, magnet assembly; 710, outer magnet; 720, inner magnet; 730, support plate; 740, support column; 800, ferrite; 900, support flange; 910, bracket. Detailed Implementation

[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0037] It should be noted that in the description of this utility model, "upper," "lower," "top," "bottom," and orientation or positional relationship are based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In one embodiment, such as Figure 1 As shown, the water-cooled P-band high-power waveguide circulator of this embodiment includes a Y-shaped waveguide cavity 100 and an upper microwave circulator assembly 200 and a lower microwave circulator assembly 300 fixedly assembled inside the Y-shaped waveguide cavity 100; the upper microwave circulator assembly 200 and the lower microwave circulator assembly 300 are fixedly assembled at the top and bottom of the Y-shaped waveguide cavity 100, respectively.

[0039] In this embodiment, the upper microwave loop assembly 200 and the lower microwave loop assembly 300 have the same composition and connection relationship.

[0040] Specifically, such as Figure 2 and Figure 3 As shown, both the upper microwave ring assembly 200 and the lower microwave ring assembly 300 are provided with a Y-junction matching step 400, a hollow cylindrical matching step 500 sealed at one end, a water-cooling assembly 600, and a magnet assembly 700.

[0041] The Y-junction matching step 400 is fixedly connected to the Y-type waveguide cavity 100. The Y-junction matching step 400 is provided with a first assembly hole 440. The opening side of the hollow cylindrical matching step 500 is matched and fixedly connected to the first assembly hole 440.

[0042] In this embodiment, the Y-junction matching step 400 and the Y-type waveguide cavity 100, and the Y-junction matching platform and the hollow cylindrical matching step 500 are all fixedly connected by screws.

[0043] The water-cooling assembly 600 is provided with an inlet pipe 610, an outlet pipe 620, and a water-cooling body 630 with a U-shaped coiled water passage. The water-cooling body 630 is assembled at the bottom of the cavity of the hollow cylindrical matching step 500. The outlet end of the inlet pipe 610 is connected to the inlet of the U-shaped coiled water passage, and the inlet end of the outlet pipe 620 is connected to the outlet of the U-shaped coiled water passage.

[0044] like Figure 4 As shown in the diagram, the shaded area represents the water channel, with the inlet and outlet located on the same side. The U-shaped, coiled water channel forms a continuous path from the inlet to the outlet. This arrangement increases the cooling area while constraining the flow direction of the coolant, preventing excess air from accumulating inside the water-cooled unit 630 due to variations in the waveguide circulator's orientation, which would otherwise reduce heat dissipation.

[0045] The magnet assembly 700 is located in the middle of the Y-junction matching step 400 and the hollow cylindrical matching step 500, and abuts against the side of the water-cooled body 630 near the opening of the hollow cylindrical matching step 500. For example... Figure 5 As shown, a number of ferrites 800 arranged in a regular hexagon are fixedly connected to the bottom outer side of the hollow cylindrical matching step 500.

[0046] Specifically, in this embodiment, there are 37 ferrites 800, and each ferrite 800 is connected to the bottom of the hollow cylindrical matching step 500 by bonding.

[0047] Under the influence of the DC magnetic field generated by the magnet assembly 700, the ferrite 800 is magnetized, producing a gyromagnetic effect that deflects the microwaves incident on the waveguide circulator, enabling the circular transmission of the microwave signal. However, the ferrite 800 generates heat during operation. Under continuous high-power conditions, the excessive heat generated by the ferrite 800 can damage the entire waveguide circulator.

[0048] In this embodiment, the water-cooled P-band high-power waveguide circulator utilizes a water-cooling component 600 installed inside the hollow cylindrical matching steps 500 of the upper microwave circulator component 200 and the lower microwave circulator component 300. This allows for water cooling to absorb the heat generated by the ferrite 800 during operation, thereby reducing the operating temperature of the waveguide circulator. Furthermore, this invention allows for separate heat dissipation of the heat generated by the upper and lower ferrite 800, resulting in better heat dissipation performance.

[0049] In one embodiment, such as Figure 6 As shown, the Y-shaped waveguide cavity 100 includes an upper cover plate 110 and a lower cover plate 120 that are parallel to each other, and a vertical plate 130 that is vertically fixedly connected to the upper cover plate 110 and the lower cover plate 120 to form the waveguide cavity; a second mounting hole 150 and a pressure plate 140 are provided in the middle of the upper cover plate 110 and the lower cover plate 120, and the pressure plate 140 is fixedly connected to the outside of the second mounting hole 150.

[0050] To facilitate the installation of the magnet assembly 700 and the water-cooling assembly 600, a second mounting hole 150 is provided on the upper cover plate 110 and the lower cover plate 120 in this embodiment. In addition, support flanges 900 are fixedly mounted on all three openings of the Y-shaped waveguide cavity 100 to support and reinforce the entire Y-shaped waveguide cavity 100.

[0051] In one embodiment, the magnet assembly 700 includes an outer magnet 710, an inner magnet 720, a support plate 730, and multiple support columns 740. The support plate 730 is fixedly connected to the inside of the second assembly hole 150, forming an assembly cavity with the pressure plate 140, and the outer magnet 710 is disposed within the assembly cavity. The inner magnet 720 abuts against the water-cooled main body 630, and the support columns 740 are vertically fixedly connected between the support plate 730 and the inner magnet 720.

[0052] The support plate 730, the water-cooled main body 630, and the support column 740 serve to limit the movement of the inner magnet 720 and the outer magnet 710. The support plate 730 is connected to the pressure plate 140 by screws.

[0053] The distance between the bottom of the support plate 730 and the Y-shaped matching step 400 is greater than or equal to the diameter of the inlet pipe 610 and / or the outlet pipe 620, so that the inlet pipe 610 and the outlet pipe 620 can pass through the space between the bottom of the support plate 730 and the Y-shaped matching step 400.

[0054] In this embodiment, the inner magnet 720 and the water-cooled body 630 are bonded together with thermally conductive adhesive. The outer magnet 710 is placed outside the inner magnet 720. The inner magnet 720 and the outer magnet 710 are used to generate a magnetic field, and the outer magnet 710 is used to compensate for the magnetic field generated by the inner magnet 720.

[0055] like Figure 7As shown, the Y-shaped matching step 400 is provided with a weight reduction groove 410. The opening side of the weight reduction groove 410 faces the upper cover plate 110 or the lower cover plate 120. A reinforcing rib 420 is fixedly provided inside the weight reduction groove 410.

[0056] The weight-reducing groove 410 is used to reduce the weight of the entire circulator, and the reinforcing rib 420 is used to prevent the Y-shaped matching step 400 from deforming under the gravity of the water-cooling assembly 600, the magnet assembly 700 and the hollow cylindrical matching step 500.

[0057] To avoid gaps between the Y-junction matching step 400 and the mating surfaces of the upper cover plate 110 or lower cover plate 120, a mounting groove 430 is provided on the mounting surface of the Y-junction matching step 400. The mounting groove 430 is filled with indium foil, and the depth of the mounting groove 430 is 0.04 to 0.06 mm, preferably 0.05 mm.

[0058] In one embodiment, the edges of both the Y-junction matching step 400 and the hollow cylindrical matching step 500 facing the center of the Y-shaped waveguide cavity 100 are rounded. The purpose of the rounded edges is to prevent arcing from occurring in the waveguide circulator during high-power operation. Specifically, in this example, the rounded edge is R10.

[0059] In one embodiment, the side of the water-cooled body 630 that abuts against the bottom of the hollow cylindrical matching step 500 is coated with thermally conductive silicone grease. The thermally conductive silicone grease can increase the heat transfer efficiency between the ferrite 800 and the water-cooled body 630.

[0060] In one embodiment, both the upper cover plate 110 and the lower cover plate 120 are provided with two through holes. The two through holes of the upper cover plate 110 are respectively connected to the water inlet end of the water inlet pipe 610 of the upper microwave ring assembly 200 and the water outlet end of the water outlet pipe 620. The two through holes of the lower cover plate 120 are respectively connected to the water inlet end of the water inlet pipe 610 of the lower microwave ring assembly 300 and the water outlet end of the water outlet pipe 620.

[0061] Specifically, in this embodiment, the inlet pipe 610 and the outlet pipe 620 are fixed to the through holes of the upper and lower cover plates 120 through flanges, and fixed to the water-cooling body 630 through G1 / 2 pipe threads.

[0062] In addition, such as Figure 8 As shown, in this embodiment, the water-cooled P-band high-power waveguide circulator is designed to prevent deformation caused by weight during handling and use, thus avoiding product damage. It also facilitates the connection of the inlet and outlet water pipes 620. Three supports 910 are installed at the intersection of the Y-shaped waveguide cavity 100, both above and below. The bottom support 910 is equipped with pulleys for easy sliding transport on a flat surface. The top support 910 is equipped with lifting rings for easy disassembly, hoisting, and handling.

[0063] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A water-cooled P-band high-power waveguide circulator, characterized in that, It includes a Y-shaped waveguide cavity (100) and an upper microwave ring assembly (200) and a lower microwave ring assembly (300) fixedly assembled inside the Y-shaped waveguide cavity (100); The upper microwave ring assembly (200) and the lower microwave ring assembly (300) are fixedly assembled on the top and bottom of the Y-shaped waveguide cavity (100) with their upper and lower parts facing each other. Both the upper microwave ring assembly (200) and the lower microwave ring assembly (300) are provided with a Y-junction matching step (400), a hollow cylindrical matching step (500) sealed at one end, a water-cooling assembly (600) and a magnet assembly (700). The Y-junction matching step (400) is fixedly connected to the Y-type waveguide cavity (100). The Y-junction matching step (400) is provided with a first assembly hole (440). The opening side of the hollow cylindrical matching step (500) is matched and fixedly connected to the first assembly hole (440). The water-cooling assembly (600) is provided with an inlet pipe (610), an outlet pipe (620), and a water-cooling body (630) with a U-shaped coiled water passage. The water-cooling body (630) is assembled at the bottom of the cavity of the hollow cylindrical matching step (500). The outlet end of the inlet pipe (610) is connected to the inlet of the U-shaped coiled water passage, and the inlet end of the outlet pipe (620) is connected to the outlet of the U-shaped coiled water passage. The magnet assembly (700) is disposed in the middle of the Y-shaped matching step (400) and the hollow cylindrical matching step (500), and abuts against the side of the water-cooled body (630) near the opening of the hollow cylindrical matching step (500). A plurality of ferrites (800) arranged in a regular hexagon are fixedly connected to the bottom outer side of the hollow cylindrical matching step (500).

2. The water-cooled P-band high-power waveguide circulator according to claim 1, characterized in that, The Y-shaped waveguide cavity (100) includes an upper cover plate (110) and a lower cover plate (120) that are parallel to each other, and a vertical plate (130) that is vertically fixedly connected to the upper cover plate (110) and the lower cover plate (120) to form the waveguide cavity. The upper cover plate (110) and the lower cover plate (120) are each provided with a second assembly hole (150) and a pressure plate (140), and the pressure plate (140) is fixedly connected to the outside of the second assembly hole (150).

3. The water-cooled P-band high-power waveguide circulator according to claim 2, characterized in that, The magnet assembly (700) is provided with an outer magnet (710), an inner magnet (720), a support plate (730), and multiple support columns (740); The support plate (730) is fixedly connected to the inside of the second assembly hole (150), forming an assembly cavity with the pressure plate (140), and the outer magnet (710) is disposed in the assembly cavity; The inner magnet (720) abuts against the water-cooled body (630), and the support column (740) is vertically fixed between the support plate (730) and the inner magnet (720); The distance between the bottom of the support plate (730) and the Y-shaped matching step (400) is greater than or equal to the diameter of the inlet pipe (610) and / or the outlet pipe (620).

4. The water-cooled P-band high-power waveguide circulator according to claim 3, characterized in that, The Y-shaped matching step (400) is provided with a weight-reducing groove (410), and the opening side of the weight-reducing groove (410) faces the upper cover plate (110) or the lower cover plate (120). A reinforcing rib (420) is fixedly provided inside the weight-reducing groove (410). The mounting surface of the Y-junction matching step (400) is provided with a mounting groove (430), the mounting groove (430) is filled with indium foil, and the depth of the mounting groove (430) is 0.04 to 0.06 mm.

5. The water-cooled P-band high-power waveguide circulator according to claim 1, characterized in that, The edges of the Y-junction matching step (400) and the hollow cylindrical matching step (500) facing the center of the Y-type waveguide cavity (100) are rounded.

6. The water-cooled P-band high-power waveguide circulator according to claim 1, characterized in that, The side of the water-cooled body (630) that abuts against the bottom of the hollow cylindrical matching step (500) is coated with thermally conductive silicone grease.

7. The water-cooled P-band high-power waveguide circulator according to claim 4, characterized in that, Both the upper cover plate (110) and the lower cover plate (120) are provided with two through holes. The two through holes of the upper cover plate (110) are respectively connected to the water inlet end of the water inlet pipe (610) and the water outlet end of the water outlet pipe (620) of the upper microwave ring assembly (200). The two through holes of the lower cover plate (120) are respectively connected to the water inlet end of the water inlet pipe (610) and the water outlet end of the water outlet pipe (620) of the lower microwave ring assembly (300).

8. The water-cooled P-band high-power waveguide circulator according to claim 7, characterized in that, The three openings of the Y-shaped waveguide cavity (100) are all fixedly fitted with support flanges (900).

Images