Embedded circulator cavity structure and circulator

Abstract

The utility model belongs to the technical field of circulators, and discloses an embedded circulator cavity structure and a circulator. The embedded circulator cavity structure comprises a cavity body and an anti-leakage structure, wherein the cavity body is provided with a placing cavity and a first port groove communicated with the placing cavity; the anti-leakage structure surrounds a notch, away from one side of the placing cavity, of the first port groove and is fixed to the cavity body, the anti-leakage structure is provided with a second port groove and a first connecting hole, the second port groove is communicated with the first port groove, and the fastener can sequentially penetrate through the first connecting hole and the test circuit board and is fixedly connected with an external seat body. Therefore, the anti-leakage structure is tightly attached to the grounding surface of the test circuit board. According to the utility model, the actual requirements of customers on spatial layout can be met. According to the embedded circulator, the anti-leakage structure is arranged at the notch of the first port groove, so that signal leakage is effectively avoided, and the transmission performance of the embedded circulator is ensured. The anti-leakage structure is tightly attached to the grounding surface of the test circuit board, so that the grounding effect is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of circulator technology, and in particular to an embedded circulator cavity structure and circulator. Background Technology

[0002] A circulator is a multi-port device that directs incident waves entering any port to the next port in a sequence determined by an electrostatic bias magnetic field. With societal advancements, circulators need to transmit signals with increasingly higher and wider frequencies, while requiring increasingly smaller spatial footprints. Traditional circulators, such as coaxial circulators or waveguide circulators, can meet customer requirements for transmitting high-frequency, wideband signals. Both types share the characteristic of connecting to external interfaces via test connectors for signal input and output, effectively preventing signal leakage. Furthermore, the connectors are secured to the sidewalls with screws, eliminating the risk of grounding issues. However, the test connectors occupy a significant amount of space, which may not meet customers' practical spatial requirements.

[0003] Embedded circulators occupy little space, meeting customers' practical needs for spatial layout. However, the ports of embedded circulators are slots, and the outer ends of these slots lack anti-leakage structures, failing to effectively prevent signal leakage. This, in turn, affects the transmission of high-frequency broadband signals, resulting in poor transmission performance. Furthermore, when grounding, embedded circulators rely solely on the bottom contact for grounding. If the bottom is not machined evenly, poor grounding can occur, also affecting transmission performance.

[0004] Therefore, there is an urgent need for an embedded circulator cavity structure and circulator to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an embedded circulator cavity structure and circulator that meets the customer's spatial layout requirements while effectively avoiding signal leakage, enhancing grounding effect, and ensuring the transmission performance of the embedded circulator when transmitting high-frequency broadband signals.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] On the one hand, an embedded circulator cavity structure is provided, comprising:

[0008] The cavity body has a placement cavity and a first port slot communicating with the placement cavity, the placement cavity being used to carry stacked components;

[0009] A leak-proof structure is provided around the opening of the first port slot on the side away from the placement cavity and fixed to the cavity body. The leak-proof structure is provided with a second port slot and a first connection hole. The second port slot communicates with the first port slot. Fasteners can pass through the first connection hole and the test circuit board in sequence and be fixedly connected to the external base to make the leak-proof structure fit tightly against the ground plane of the test circuit board.

[0010] In some possible implementations, the leak-proof structure is a connecting plate, which is horizontally fixed to the slot on the side of the first port slot away from the placement cavity. The connecting plate is provided with the second port slot through it, and the bottom surface of the connecting plate can be in contact with the ground plane of the test circuit board.

[0011] In some possible implementations, the width of the second port slot is W1, and the width of the first port slot is W2, where W1 ≤ W2.

[0012] In some possible implementations, the distance from the bottom surface of the connecting plate to the bottom surface of the cavity body is H1, and the distance from the bottom surface of the lead in the stacked assembly to the bottom surface of the cavity body is H2, where H1 = H2.

[0013] In some possible implementations, the thickness of the connecting plate is T, the width of the second port slot is W1, and T≥1 / 2W1.

[0014] In some possible implementations, the length of the connecting plate extending along the length of the second port slot is L1, and the length of the test circuit board is L2, where L1 ≤ L2.

[0015] In some possible implementations, the cavity wall is provided with internal threads for threaded connection with the locking cap.

[0016] In some possible implementations, the cavity body is provided with a second connection hole.

[0017] In some possible implementations, the cavity body and the leak-proof structure are integrated as a single unit.

[0018] On the other hand, an embedded circulator is provided, including a stacking assembly, a locking cover, and an embedded circulator cavity structure as described in any of the above embodiments, wherein the stacking assembly is disposed in the placement cavity, and the locking cover is fixed in the placement cavity and abuts against the stacking assembly.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides an embedded circulator cavity structure, including a cavity body and a leak-proof structure. The cavity body has a placement cavity and a first port slot communicating with the placement cavity. The leak-proof structure surrounds the opening of the first port slot away from the placement cavity and is fixed to the cavity body. The leak-proof structure has a second port slot and a first connection hole. This utility model eliminates the need to fix the test connector to the circulator, reducing the spatial layout size and meeting the actual needs of customers for spatial layout. By setting the leak-proof structure at the opening of the first port slot away from the placement cavity and surrounding the opening, signal leakage is effectively avoided, ensuring the transmission performance of the embedded circulator when transmitting high-frequency broadband signals. The second port slot on the leak-proof structure facilitates wiring. Fasteners pass through the first connection hole and the test circuit board in sequence and are fixedly connected to the external base, which can make the leak-proof structure fit tightly against the ground plane of the test circuit board, enhancing the grounding effect and improving transmission performance. Attached Figure Description

[0021] Figure 1 This is an isometric view of the embedded circulator cavity structure provided by this utility model;

[0022] Figure 2 This is a front view of the embedded circulator cavity structure provided by this utility model;

[0023] Figure 3 This is a top view of the embedded circulator cavity structure provided by this utility model.

[0024] In the picture:

[0025] 1. Cavity body; 11. Placement cavity; 12. First port groove; 13. Internal thread; 14. Second connecting hole;

[0026] 2. Leak-proof structure; 21. Second port groove; 22. First connection hole. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] like Figures 1 to 3 As shown, this utility model provides an embedded circulator cavity structure, including a cavity body 1 and a leak-proof structure 2. The cavity body 1 is configured to be fixed on an external base. The cavity body 1 has a placement cavity 11 and a first port groove 12 communicating with the placement cavity 11. The placement cavity 11 is used to support stacked components. The leak-proof structure 2 surrounds the opening of the first port groove 12 on the side away from the placement cavity 11 and is fixed to the cavity body 1. The leak-proof structure 2 has a second port groove 21 and a first connecting hole 22. The second port groove 21 communicates with the first port groove 12. The test circuit board is located below the leak-proof structure 2. Fasteners can pass through the first connecting hole 22 and the test circuit board in sequence and be fixedly connected to the external base to make the leak-proof structure 2 fit tightly against the ground plane of the test circuit board. Optionally, the cavity body 1 has a second connecting hole 14. Fasteners can pass through the second connecting hole 14 and be fixedly connected to the external base to facilitate the installation of the cavity body 1 and the external base and make the fixation more secure.

[0032] This invention eliminates the need to fix the test connector to the circulator, reducing the spatial layout size and meeting customers' practical needs for space arrangement. By setting an anti-leakage structure 2 in the slot opening on the side of the first port slot 12 away from the placement cavity 11, and surrounding the slot opening with the anti-leakage structure 2, signal leakage is effectively prevented, ensuring the transmission performance of the embedded circulator when transmitting high-frequency broadband signals. A second port slot 21 is provided on the anti-leakage structure 2 for convenient wiring. Fasteners pass sequentially through the first connecting hole 22 and the test circuit board and are fixedly connected to the external base, which can make the anti-leakage structure 2 fit tightly against the ground plane of the test circuit board, enhancing the grounding effect and improving transmission performance.

[0033] Optionally, in this embodiment, the leak-proof structure 2 is a connecting plate. The connecting plate is horizontally fixed at the slot of the first port slot 12 away from the placement cavity 11. The connecting plate is provided with a second port slot 21 through it, and the bottom surface of the connecting plate can fit against the ground plane of the test circuit board. This configuration is simple, easy to process, and saves space.

[0034] Optionally, the width of the second port slot 21 is W1, and the width of the first port slot 12 is W2, where W1 ≤ W2. When the width W1 of the second port slot 21 is equal to the width W2 of the first port slot 12, signal leakage can be effectively prevented, and wiring is convenient. When the width W1 of the second port slot 21 is less than the width W2 of the first port slot 12, the anti-leakage structure 2 can better surround the opening of the first port slot 12, resulting in better signal leakage prevention and ensuring good transmission performance. In this embodiment, as... Figure 3 As shown, both the first port slot 12 and the second port slot 21 are cuboid slots. The width of the first port slot 12 and the second port slot 21 remains constant from the side closest to the placement cavity 11 outwards. In other embodiments, the first port slot 12 and the second port slot 21 may also be slots whose width gradually changes from the side closest to the placement cavity 11 outwards, so that the maximum width of the second port slot 21 is less than or equal to the minimum width of the first port slot 12.

[0035] Optionally, such as Figure 2 As shown, the distance from the bottom surface of the connecting plate to the bottom surface of the cavity body 1 is H1, and the distance from the bottom surface of the lead wire in the stacked assembly to the bottom surface of the cavity body 1 is H2 (not shown in the figure). H1 = H2, that is, the bottom surface of the connecting plate is flush with the bottom surface of the lead wire. With this setting, the ground plane of the test circuit board is in contact with the bottom surface of the connecting plate, and the test transmission line on the test circuit board can accurately connect with the lead wire in the stacked assembly.

[0036] Optionally, the thickness of the connecting plate is T, and the width of the second port slot 21 is W1, where T ≥ 1 / 2W1. This configuration increases the enclosure range of the anti-leakage structure 2 around the opening of the first port slot 12, ensuring that the signal can be well shielded, minimizing signal leakage, and guaranteeing transmission performance.

[0037] Optionally, such as Figure 3 As shown, the length of the connecting plate extending along the length of the second port slot 21 is L1, and the length of the test circuit board is L2, where L1 ≤ L2. During testing, a test connector needs to be connected to the other end of the test circuit board. The length of the connecting plate extending along the length of the second port slot 21 is less than the length of the test circuit board. This avoids interference between the connecting plate and the test connector, does not affect the installation and fixation of the test connector, and ensures that the test transmission lines of the test circuit board can be placed within the second port slot 21 to the maximum extent.

[0038] Optionally, the cavity wall of the placement cavity 11 is provided with internal threads 13 for threaded connection with the locking cap. When assembling the embedded ring, the stacked assembly is placed inside the placement cavity 11, and then the locking cap is tightened inside the placement cavity 11, abutting against the stacked assembly to ensure a secure installation. Optionally, the cavity body 1 and the leak-proof structure 2 are integrally formed for easy machining and installation. In other embodiments, the cavity body 1 and the leak-proof structure 2 are detachably connected.

[0039] This utility model also provides an embedded circulator, including a stacking assembly, a locking cover, and an embedded circulator cavity structure. The stacking assembly is disposed in a placement cavity 11, and the locking cover is fixed inside the placement cavity 11 and abuts against the stacking assembly. This embedded circulator meets the customer's spatial layout requirements while effectively preventing signal leakage, enhancing grounding, and ensuring the transmission performance of the embedded circulator when transmitting high-frequency broadband signals.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An embedded circulator cavity structure, characterized in that, include: The cavity body (1) is provided with a placement cavity (11) and a first port slot (12) communicating with the placement cavity (11), wherein the placement cavity (11) is used to carry stacked components; The anti-leakage structure (2) is provided in the slot of the first port slot (12) away from the placement cavity (11) and fixed to the cavity body (1). The anti-leakage structure (2) is provided with a second port slot (21) and a first connection hole (22). The second port slot (21) communicates with the first port slot (12). Fasteners can pass through the first connection hole (22) and the test circuit board in sequence and be fixedly connected to the external base so as to press the anti-leakage structure (2) against the ground plane of the test circuit board.

2. The embedded circulator cavity structure according to claim 1, characterized in that, The anti-leakage structure (2) is a connecting plate. The connecting plate is horizontally fixed at the slot of the first port slot (12) on the side away from the placement cavity (11). The connecting plate is provided with the second port slot (21) through it. The bottom surface of the connecting plate can fit with the ground plane of the test circuit board.

3. The embedded circulator cavity structure according to claim 2, characterized in that, The width of the second port slot (21) is W1, and the width of the first port slot (12) is W2, where W1 ≤ W2.

4. The embedded circulator cavity structure according to claim 2, characterized in that, The distance from the bottom surface of the connecting plate to the bottom surface of the cavity body (1) is H1, and the distance from the bottom surface of the lead wire in the stacked assembly to the bottom surface of the cavity body (1) is H2, where H1 = H2.

5. The embedded circulator cavity structure according to claim 2, characterized in that, The thickness of the connecting plate is T, and the width of the second port slot (21) is W1, where T ≥ 1 / 2W1.

6. The embedded circulator cavity structure according to claim 2, characterized in that, The length of the connecting plate extending along the length of the second port slot (21) is L1, and the length of the test circuit board is L2, where L1≤L2.

7. The embedded circulator cavity structure according to claim 1, characterized in that, The cavity wall of the placement cavity (11) is provided with an internal thread (13), which is used for threaded connection with the lock cover.

8. The embedded circulator cavity structure according to claim 1, characterized in that, The cavity body (1) is provided with a second connection hole (14).

9. The embedded circulator cavity structure according to claim 1, characterized in that, The cavity body (1) and the leak-proof structure (2) are integrated into one unit.

10. An embedded circulator, characterized in that, The device includes a stacking assembly, a locking cap, and an embedded circulator cavity structure as described in any one of claims 1-9, wherein the stacking assembly is disposed in the placement cavity (11), and the locking cap is fixed within the placement cavity (11) and abuts against the stacking assembly.

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