Power division coupling assembly

Abstract

The utility model discloses a power division coupling assembly, comprising a plurality of input interfaces, a plurality of output interfaces and a printed circuit board, a first side of the printed circuit board is connected with the plurality of input interfaces, and a second side of the printed circuit board is connected with the plurality of output interfaces; the printed circuit board is provided with a plurality of straight-through channels; the input interfaces and the output interfaces are in one-to-one correspondence, and the input interfaces and the output interfaces which correspond to each other are connected through the straight-through channels; the printed circuit board is provided with a power division network and a coupling network, the power division network comprises an input end and a plurality of output ends, a multi-stage one-to-two power division structure is arranged between the input end and the plurality of output ends, and the plurality of output ends are the output ends of the last-stage power division structure. Shunt, coupling and composite output of signals are realized through a multi-layer structure on the printed circuit board, such as collaborative layout of a straight-through channel and a coupling network, so that the performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of microwave passive device technology, and in particular to a power splitting coupling component. Background Technology

[0002] Currently, with the continuous development of active phased array technology, miniaturized, highly integrated, and modular phased array architectures have become the next generation of mainstream designs. This places higher demands on RF microwave modules and radar involved in signal transmission, requiring continuous optimization to improve performance and size. Therefore, RF front-ends will develop towards miniaturization, integration, and high performance. However, RF coaxial connectors have high product positioning requirements, are difficult to align and mate during array use, are easily damaged, and their float cannot meet the requirements of practical applications. Utility Model Content

[0003] This invention provides a power splitting coupling component that achieves signal splitting, coupling, and composite output through a multi-layer structure on a printed circuit board, such as the coordinated layout of through channels and coupling networks to improve performance.

[0004] According to one aspect of the present invention, a power splitting coupling component is provided. The power splitting coupling component includes a plurality of input interfaces, a plurality of output interfaces, and a printed circuit board. A first side of the printed circuit board is connected to the plurality of input interfaces, and a second side of the printed circuit board is connected to the plurality of output interfaces. The printed circuit board is provided with a plurality of through channels; the input interfaces and output interfaces correspond one-to-one, and the corresponding input interfaces and output interfaces are connected through the through channels. The printed circuit board is also provided with a power splitting network and a coupling network; the power splitting network includes an input terminal and a plurality of output terminals, and a multi-stage one-to-two power splitting structure is provided between the input terminal and the plurality of output terminals. The power splitting structure is used to split the signal input to the power splitting structure into two signal outputs, and the plurality of output terminals are the output terminals of the last stage of the power splitting structure. The plurality of through channels includes a plurality of first through channels and a plurality of second through channels, and the coupling network includes a plurality of coupling modules; the input terminal is connected to the first through channel, each of the output terminals is connected to the coupling module, and the coupling module is also connected to the second through channel. The coupling module is used to couple the first input signal and the power-dividing output signal to obtain a power-dividing coupled signal; the first input signal is a signal input from outside the power-dividing coupling component to the second through channel, and the power-dividing output signal is a power-dividing output signal output from the output terminal. The output interface connected to the second through channel is a composite output interface, which is an interface used to transmit the first input signal and / or the power-dividing coupled signal, and the plurality of output interfaces includes a plurality of the composite output interfaces.

[0005] In a further technical solution, the printed circuit board includes a first circuit board and a second circuit board. The first circuit board is provided with the plurality of through channels and the coupling network; the second circuit board is provided with the power dividing network; the first circuit board and the second circuit board are connected by an electrical connector.

[0006] In a further technical solution, the first circuit board includes a through portion and a coupling portion, the coupling portion being provided with a second through channel and a coupling channel, and the coupling channel being signal-coupled to the second through channel.

[0007] In a further technical solution, the power splitting coupling component also includes a circuit board housing, the circuit board housing having a first cavity, and the printed circuit board disposed within the first cavity.

[0008] In a further technical solution, the circuit board housing includes a first wall and a second wall. The second circuit board includes a strip conductor and a dielectric substrate. The strip conductor is disposed on the surface of the dielectric substrate near the second wall. The second wall is provided with a strip cavity penetrating the second wall. The strip cavity is arranged along the path of the strip conductor. The strip conductor and the strip cavity are disposed opposite to each other. The dielectric substrate abuts against the strip cavity to form an air dielectric cavity corresponding to the strip conductor.

[0009] In a further technical solution, the first wall is provided with a plurality of first cavities and a plurality of second cavities penetrating the first wall. The first cavities are arranged opposite to the coupling modules one by one, and the second cavities are arranged opposite to a plurality of straight channels other than the coupling modules.

[0010] In a further technical solution, the power splitting coupling assembly further includes a flange, a first cover plate, and a second cover plate; the flange is connected to the top wall of the circuit board housing near the input interface, and the flange has through holes through which multiple input interfaces pass; the first cover plate covers the outside of the first wall, and the second cover plate covers the outside of the second wall.

[0011] In a further technical solution, the bottom wall of the circuit board housing near the plurality of output interfaces has a through hole for the plurality of output interfaces to pass through, and a sealing ring is provided on the outer periphery of the bottom wall.

[0012] In a further technical solution, the bottom wall is provided with a positioning post, and the portion of the first wall and / or the second wall near the bottom wall is provided with a guide groove.

[0013] In a further technical solution, the sidewall of the circuit board housing is provided with guide rails.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention combines the functions of a power divider and a coupler, achieving signal splitting, coupling, and composite output through a multi-layer structure on a printed circuit board. For example, the coordinated layout of through channels and coupling networks enhances performance. This invention enables floating interconnection with the printed circuit board, significantly increasing the floating range of the array-type inter-board floating RF interconnect module and greatly improving its reliability and ease of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the input interface structure of this utility model;

[0018] Figure 3 This is a side view of the overall structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the printed circuit board structure of this utility model;

[0020] Figure 5 This is a partial schematic diagram of the strip conductor structure of this utility model;

[0021] Figure 6 This is a partial top view of the strip conductor of this utility model;

[0022] Figure 7 This is a schematic diagram of the circuit board housing structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the circuit board housing structure of this utility model;

[0024] Figure 9 This is a schematic diagram of the positioning column structure of this utility model.

[0025] The components in the attached diagram are labeled as follows:

[0026] 1. Input interface;

[0027] 2. Output interface;

[0028] 3. Printed circuit board; 31. Through channel; 311. First through channel; 312. Second through channel; 32. First circuit board; 321. Coupling module; 3201. Through section; 3202. Coupling section; 33. Second circuit board; 333. Power divider structure; 334. Strip conductor; 335. Dielectric substrate; 34. Electrical connector;

[0029] 4. Circuit board housing; 41. First wall; 411. First cavity; 412. Second cavity; 42. Second wall; 421. Strip cavity; 43. Bottom wall; 431. Sealing ring; 44. Side wall; 441. Guide rail;

[0030] 5. Flange;

[0031] 6. First cover plate;

[0032] 7. Second cover plate. Detailed Implementation

[0033] To make the above-mentioned objects, 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. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0034] Please see Figure 1 , Figure 2 and Figure 4 This utility model embodiment proposes a power splitting coupling component, which includes a plurality of input interfaces 1, a plurality of output interfaces 2 and a printed circuit board 3. The first side of the printed circuit board 3 is connected to the plurality of input interfaces, and the second side of the printed circuit board 3 is connected to the plurality of output interfaces 2.

[0035] Optionally, both the first and second sides of the printed circuit board 3 have radio frequency (RF) structures, which can employ SMP(M)-JHD-L / S type RF connectors. The RF connectors can be glass-bonded structures. The RF connectors can be soldered to the circuit board housing 4, and the printed circuit board 3 and the RF connectors can be connected electrically. The first side of the printed circuit board 3 is connected to the output terminals of several RF connectors, and the input terminals of these connectors can serve as several input interfaces 1 on the first side. The second side of the printed circuit board 3 is connected to the input terminals of several other RF connectors, and the output terminals of these connectors can serve as several output interfaces 2 on the second side. This connection design achieves a hermetically sealed performance at the interfaces on the first and second sides.

[0036] like Figure 4As shown, the printed circuit board 3 is provided with several through channels 31. The aforementioned input interfaces 1 correspond one-to-one with several output interfaces 2, and the corresponding input interfaces 1 and output interfaces 2 are connected through the through channels 31. The through channel 31 can be a line directly connecting the input interface 1 and the output interface 2. The through channel 31 allows signals input from the input port to be directly output through the connected output interface 2, satisfying the direct output of through signals and improving transmission efficiency and accuracy.

[0037] In addition to transmitting direct signals, the printed circuit board 3 also needs to perform signal separation and coupling functions to meet complex signal transmission and processing requirements and adapt to more complex signal transmission and processing scenarios. Therefore, the printed circuit board 3 also includes a power splitting network and a coupling network; such as... Figure 5 As shown, the power divider network includes an input terminal and several output terminals. There is a multi-stage one-to-two power divider structure 333 between the input terminal and the several output terminals. The power divider structure 333 is used to divide the signal input to the power divider structure 333 into two signal outputs. The several output terminals are the output terminals of the last stage of the power divider structure 333.

[0038] The aforementioned power divider network is used to split the input signal into several signals, which are then output through the aforementioned output terminals. For each 1-to-2 power divider structure 333, the signal is input from the input terminal of the power divider structure 333 and split into two signals, which are output from the two output terminals of the power divider structure 333. Multiple 1-to-2 power divider structures 333 connected together can achieve multi-stage signal separation. Furthermore, in the multi-stage 1-to-2 power divider structures 333, there is a certain distance between each subsequent power divider structure 333, which can effectively reduce the number of branch lines in the same area. Compared to power dividers with more channels, such as 1-to-4, replacing these multi-channel power dividers with multi-stage 1-to-2 power divider structures 333 can achieve better signal isolation and reduce transmission loss.

[0039] Furthermore, the aforementioned one-to-two power divider structure 333 includes two stages of isolation resistors to improve the signal isolation of the power divider structure 333.

[0040] like Figure 5 As shown, the plurality of through channels 31 include a plurality of first through channels 311 and a plurality of second through channels 312, and the coupling network includes a plurality of coupling modules 321. The input terminal of the power divider network is connected to the first through channel 311, and the signal in the first through channel 311 can enter the power divider network through the input terminal of the power divider network and be divided into multiple signals by the power divider structure 333. Each output terminal of the power divider network is connected to the coupling module 321, and the coupling module 321 is also connected to the second through channel 312.

[0041] The first direct channel 311 mentioned above refers to the direct channel among several direct channels 31 that is connected to the input end of the power divider network, and the second direct channel 312 mentioned above refers to the direct channel among several direct channels 31 that is connected to the output end of the power divider network.

[0042] The coupling module 321 is used to couple the first input signal and the power divider output signal to obtain the power divider coupling signal. The first input signal is the signal input from outside the power divider coupling component into the second through channel 312, and the power divider output signal is the power divider output signal output from the output terminal of the power divider network.

[0043] like Figure 4 As shown, since the coupling module 321 can couple the input signal of the above-mentioned through channel 31 (the first input signal of the second through channel 312) with the signal output from the output terminal of the power divider network, the power-coupled signal can be output through the output interface 2 connected to the second through channel 312. Therefore, the output interface 2 connected to the second through channel 312 is a composite output interface. The composite output interface is used to transmit the first input signal and / or the power-coupled signal. Multiple output interfaces 2 include multiple composite output interfaces, and the remaining interfaces can be through-channel signal interfaces or other interfaces. The above-mentioned composite output interface can directly output the first input signal through the second through channel 312 in the through-channel working state, and can also output the power-coupled signal in the power-coupled working state, thus expanding the interface function.

[0044] In this exemplary embodiment, the external signal is mixed with the signal processed by the internal power divider, increasing the application flexibility of the component. The power divider coupling component in this embodiment combines the functions of a power divider and a coupler, realizing signal splitting, coupling, and composite output through a multi-layer structure on the PCB. It includes the design of a multi-stage power divider structure 333, a through-channel 31, and the integration of a coupling module 321. By designing the power divider coupling channel separately and feeding it through a back-side power supply, this embodiment enables a floating interconnection with the printed circuit board 3. This greatly increases the floating range of the array-type inter-board floating RF interconnect module and significantly improves its reliability and ease of use.

[0045] Optionally, such as Figure 6 As shown, the printed circuit board 3 includes a first circuit board 32 and a second circuit board 33. The first circuit board 32 is provided with a plurality of through channels 31 and a coupling network; the second circuit board 33 is provided with a power dividing network; the first circuit board 32 and the second circuit board 33 are connected by an electrical connector 34. Optionally, the first circuit board 32 includes a through portion 3201 and a coupling portion 3202. The coupling portion 3202 is provided with a second through channel 312 and a coupling channel, and the coupling channel and the second through channel 312 are signal coupled together.

[0046] For example, the first through channel 311 in the second circuit board 33 is connected to the input terminal of the power divider network in the first circuit board 32 via an electrical connector 34 to achieve signal transmission, thereby inputting the signal from the first through channel 311 into the power divider network. Alternatively, the output terminal of the power divider network in the second circuit board 33 is connected to the coupling channel in the coupling module 321 in the first circuit board 32, thereby inputting the power-divided output signal from the power divider network into the coupling channel in the coupling module 321. The power-divided output signal in the coupling channel can be coupled to the second through channel 312, thereby outputting a power-divided coupled signal.

[0047] The through channel 31 in the through portion 3201 of the first circuit board 32 is not connected to the coupling module 321, so the output interface 2 of this portion is a through channel output interface.

[0048] like Figure 1 , Figure 7 and Figure 8 As shown, the power splitter coupling assembly also includes a circuit board housing 4, which has a first cavity 411, and a printed circuit board 3 is disposed within the first cavity 411. The circuit board housing 4 also includes a first wall 41 and a second wall 42. The second circuit board 33 includes a strip conductor 334 and a dielectric substrate 335. The strip conductor 334 is disposed on the surface of the dielectric substrate 335 near the second wall 42. The second wall 42 has a strip cavity 421 penetrating the second wall 42. The strip cavity 421 is arranged along the path of the strip conductor 334, with the strip conductor 334 and the strip cavity 421 facing each other. The dielectric substrate 335 abuts against the strip cavity 421 to form an air dielectric cavity corresponding to the strip conductor 334. The power splitter network uses air stripline technology, reducing signal transmission loss.

[0049] Optionally, the first wall 41 is provided with a plurality of first cavities 411 and a plurality of second cavities 412 penetrating the first wall 41. The first cavities 411 are arranged opposite to the coupling modules 321 one by one, and the second cavities 412 are arranged opposite to a plurality of through channels 31 other than the coupling modules 321. The first cavities 411 form air dielectric cavities for the conductors in the coupling modules 321, and the second cavities 412 form air dielectric cavities for the through channels 31. The power divider network and the coupling network adopt a cavity coupling structure to ensure isolation, and overall shielding is used to reduce mutual interference between signals.

[0050] like Figure 1 and Figure 3As shown, the above-mentioned power splitting coupling assembly also includes a flange 5, a first cover plate 6, and a second cover plate 7; the flange 5 is connected to the top wall of the circuit board housing 4 near the input interface 1, such as by bolt connection, and the flange 5 has through holes through which multiple input interfaces 1 pass; the first cover plate 6 covers the outside of the first wall 41, and the second cover plate 7 covers the outside of the second wall 42.

[0051] Among them, such as Figure 3 As shown, the first cover plate 6 and the second cover plate 7 are respectively laser welded to the circuit board housing 4, thereby welding and fixing the cover plate to the circuit board housing 4 together and realizing the sealing function inside the power split coupling component.

[0052] Optionally, the bottom wall 43 of the circuit board housing 4 near the multiple output interfaces has through holes for the multiple output interfaces 2 to pass through, and a sealing ring 431 is provided on the outer periphery of the bottom wall 43. To prevent external moisture from entering the power splitting coupling assembly from the bottom wall 43 during operation and affecting the normal operation of the exposed adapter, a sealing ring 431 is designed around the bottom wall 43. After the power splitting coupling assembly is installed in the antenna module, it can press the sealing ring 431 against the antenna module and compress it, thereby achieving a sealing function.

[0053] Optionally, such as Figure 9 As shown, the bottom wall 43 is provided with positioning posts, and the portion of the first wall 41 and / or the second wall 42 near the bottom wall 43 is provided with guide grooves. After the power splitter coupling assembly is installed in the antenna module, it needs to withstand significant vibration and impact during use. To prevent the forces generated during vibration and impact from not directly acting on the connector on the second side, multiple guide grooves are provided on the portion of the first wall 41 and / or the second wall 42 near the bottom wall 43. Thus, when the power splitter coupling assembly is inserted into the corresponding docking module within the antenna module, the docking module can be inserted into the guide grooves, and the guide posts and the aforementioned positioning posts preferentially bear the external force during vibration and impact.

[0054] Optionally, such as Figure 1 and Figure 3 As shown, the sidewall 44 of the circuit board housing 4 is provided with guide rails 441. In this way, when installing and removing the power splitting coupling assembly, the guide rails 441 on both sidewalls provide a precise guiding function for the power splitting coupling assembly during assembly and use.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above 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 the 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 patent should be determined by the appended claims.

[0057] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only 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, and therefore should not be construed as a limitation of this utility model.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0061] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A power division coupling assembly, characterized by, The power division coupling assembly comprises a plurality of input interfaces (1), a plurality of output interfaces (2) and a printed circuit board (3), a first side of the printed circuit board (3) is connected with the plurality of input interfaces (1), and a second side of the printed circuit board is connected with the plurality of output interfaces (2); The printed circuit board (3) is provided with a plurality of straight-through channels (31); the input interface (1) corresponds to the output interface one by one, and the input interface and the output interface corresponding to each other are connected through the straight-through channel (31); The printed circuit board (3) is further provided with a power division network and a coupling network; the power division network comprises an input end (331) and a plurality of output ends (332), and the input end (331) and the plurality of output ends (332) have a multi-stage one-to-two power division structure (333) therebetween, the power division structure (333) is used for dividing the input signal of the power division structure into two-way signal output, and the plurality of output ends are output ends of the last stage of power division structure; The plurality of straight-through channels (31) comprise a plurality of first straight-through channels (311) and a plurality of second straight-through channels (312), and the coupling network comprises a plurality of coupling modules (321); the input end (331) is connected with the first straight-through channel (311), each output end (332) is connected with the coupling module (321), and the coupling module (321) is further connected with the second straight-through channel (312); The coupling module (321) is used for coupling a first input signal and a power division output signal to obtain a power division coupling signal; the first input signal is a signal input from the outside of the power division coupling assembly to the second straight-through channel (312), and the power division output signal is a power division output signal output from the output end (332); The output interface (2) connected with the second straight-through channel is a composite output interface, the composite output interface is an interface used for transmitting the first input signal and / or the power division coupling signal, and a plurality of the output interfaces comprise a plurality of the composite output interfaces.

2. The power division coupling assembly of claim 1, wherein, The printed circuit board (3) comprises a first circuit board (32) and a second circuit board (33), the first circuit board is provided with the plurality of straight-through channels and the coupling network; the second circuit board (33) is provided with the power division network; and the first circuit board (32) and the second circuit board (33) are connected through an electrical connector (34).

3. The power division coupling assembly of claim 2, wherein, The first circuit board (32) comprises a straight-through part (3201) and a coupling part (3202), the coupling part (3202) is provided with the second straight-through channel (312) and a coupling channel (32021), and the coupling channel is signal-coupled with the second straight-through channel (312).

4. The power division coupling assembly of claim 3, wherein, The power division coupling assembly further comprises a circuit board shell (4), the circuit board shell (4) is provided with a first cavity, and the printed circuit board (3) is arranged in the first cavity.

5. The power division coupling assembly of claim 4, wherein, The circuit board shell (4) comprises a first wall body (41) and a second wall body (42), the second circuit board comprises a strip-shaped conductor (334) and a dielectric substrate (335), the strip-shaped conductor (334) is arranged on the surface of the dielectric substrate (335) close to the second wall body (42); the second wall body is provided with a strip-shaped cavity (421) penetrating through the second wall body, the strip-shaped cavity (421) is arranged along the path of the strip-shaped conductor (334), the strip-shaped conductor (334) is arranged opposite to the strip-shaped cavity (421), and the dielectric substrate (335) abuts against the strip-shaped cavity (421) to form an air medium cavity corresponding to the strip-shaped conductor (334).

6. The power division coupling assembly of claim 5, wherein, The first wall body (41) is provided with a plurality of first cavities (411) and a plurality of second cavities (412) penetrating through the first wall body (41), the first cavities (411) are arranged opposite to the coupling modules (321) one by one, and the second cavities (412) are arranged opposite to a plurality of the straight-through channels except the coupling modules (321).

7. The power splitting assembly according to any of claims 5 or 6, characterized in that, The power division coupling assembly further comprises a flange plate (5), a first cover plate (6) and a second cover plate (7); the flange plate (5) is connected to the top wall of the circuit board shell (4) close to the input interfaces, and the flange plate (5) has penetrating holes for the plurality of input interfaces to pass through; The first cover plate is covered on the outer side of the first wall body, and the second cover plate is covered on the outer side of the second wall body.

8. The power splitting assembly according to any of claims 5 or 6, characterized in that, The circuit board shell (4) has penetrating holes for the plurality of output interfaces to pass through on the bottom wall (43) close to the plurality of output interfaces, and the outer periphery of the bottom wall is provided with a sealing ring (431).

9. The power division coupling assembly of claim 8, wherein, The bottom wall (43) is provided with a positioning column (432), and the part of the first wall body and / or the second wall body close to the bottom wall is provided with a guide groove.

10. The power splitting assembly according to any one of claims 5 or 6, wherein, The side wall (44) of the circuit board shell (4) is provided with a guide rail strip (441).

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