Power division connector and communication device

Abstract

The present application relates to the technical field of wireless communications, and specifically to a power division connector and a communication device. The power division connector comprises: an outer conductor having a hollow accommodating cavity; and an inner conductor arranged in the accommodating cavity. The inner conductor and the outer conductor are spaced apart from each other, a gas being used as a medium between the inner conductor and the outer conductor. The inner conductor has an input port and one or more output ports, the input port and the one or more output ports all extending out of the accommodating cavity, and the multiple output ports being arranged at intervals. The present application can realize low-loss transmissions and a power division function.

Description

A power division connector and a communication device

[0001] The present application claims priority to the Chinese patent application No. 202411324584.8, filed on September 20, 2024, and entitled "A power division connector and a communication device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the field of wireless communication technology, in particular to a power division connector and a communication device. BACKGROUND

[0003] A base station usually includes devices such as a power divider, an antenna, and a circuit board. Among them, the power divider (Power divider, also known as power divider) has the function of power distribution and power combination for radio frequency or microwave signals.

[0004] The existing base station usually adopts a multiple input multiple output (Multiple Input Multiple Output, MIMO for short) scheme, connects an antenna and a hybrid beamforming (Hybrid Beamforming, HBF for short) system, and realizes the function of the power divider by using a microstrip line form of wiring design in the HBF system. Among them, the two important parameters of the power divider are loss and isolation.

[0005] However, on the one hand, the microstrip line form of wiring has a long length and has a large feeding network loss; on the other hand, the microstrip line form of the power divider is printed on a printed circuit board (Printed Circuit Board, PCB for short). Due to the wiring space limitation of the printed circuit board, there is a coupling effect between the microstrip lines, which makes it difficult to achieve the design requirement of isolation. SUMMARY

[0006] The present application provides a power division connector and a communication device, wherein the power division connector has an outer conductor and an inner conductor, and the outer conductor and the inner conductor jointly form an air-like coaxial structure, so that the power division connector of the present application can realize the power division function and has low feeding loss and high isolation when it is connected with the circuit board of the communication device. The present application is introduced from multiple aspects below, and the embodiments and advantages of the multiple aspects below can be referred to each other.

[0007] The first aspect of the present application provides a power division connector. Specifically, the power division connector includes: an outer conductor having a hollow accommodating cavity;

[0008] An inner conductor is arranged in the accommodating cavity, the inner conductor and the outer conductor are arranged at intervals, and a gas is used as a medium between the inner conductor and the outer conductor;

[0009] The inner conductor has an input port and one or more output ports, and the input port and the one or more output ports respectively extend out of the accommodating cavity.

[0010] With the above technical solution, the power division connector has an outer conductor and an inner conductor, and the inner conductor has an input port and one or more output ports. Therefore, when the power division connector is connected to a circuit board of a communication device (described later), the input port of the inner conductor can receive one input signal energy from the circuit board and output one output signal energy through one output port or multiple output signal energies through multiple output ports, to realize the power division function. Exemplarily, the power division connector of the embodiment of the present application is connected to the circuit board of the communication device (for example, a base station) through a tool (for example, an automatic chip mounter), to realize the power division function in the communication device (for example, a base station).

[0011] Further, the inner conductor of the power division connector is arranged in the hollow accommodating cavity formed by the outer conductor, and the inner conductor is independent of the outer conductor, forming a channel using gas (for example, air) as a medium. Exemplarily, the above-mentioned inner conductor independent of the outer conductor means that the inner conductor is not filled with a medium between the outer conductor, and is isolated by gas. Therefore, the inner conductor and the outer conductor use gas as a medium, and use the low dielectric loss of the gas to reduce the loss (for example, the feed network loss) of the power division connector in the process of transmitting signal energy, and improve the radiation efficiency.

[0012] In addition, compared with the power divider in the form of a microstrip line printed on a printed circuit board, the power division connector of the embodiment of the present application is connected to the circuit board through the outer conductor and the inner conductor, instead of being printed on the circuit board, and the layout space is not limited by the wiring space of the circuit board. Therefore, the power division connector of the embodiment of the present application has sufficient layout space, and can reduce the coupling effect between the wirings of the inner conductor, to improve the isolation.

[0013] In a possible implementation of the above first aspect, the gas includes air.

[0014] With the above technical solution, air is used as a medium between the inner conductor and the outer conductor, and since the dielectric constant of air is close to 1, it has the effect of reducing loss when transmitting signal energy.

[0015] Exemplarily, the embodiments of the present application do not limit the kind of the gas, as long as the gas satisfying the low dielectric loss requirement can be used as the medium between the inner conductor and the outer conductor of the embodiments of the present application. For example, in the closed accommodating cavity formed by the outer conductor, the embodiments of the present application can also use air, helium, argon, nitrogen and other gases as the medium between the inner conductor and the outer conductor. Among them, the closed accommodating cavity can also play the role of waterproof and dustproof, and can improve the stability of the power divider connector and prolong the service life of the power divider connector.

[0016] In a possible implementation of the first aspect, the outer conductor comprises:

[0017] a first side wall extending along a first direction;

[0018] a second side wall extending along the first direction, and spaced apart from the inner conductor on opposite sides thereof along a second direction, the first direction intersecting the second direction;

[0019] the inner conductor extending along the first direction, and the distance between the inner conductor and the first side wall along the second direction being equal to the distance between the inner conductor and the second side wall along the second direction.

[0020] By using the above technical solution, the first side wall and the second side wall of the outer conductor of the embodiments of the present application are arranged on opposite sides of the inner conductor, and the distance between the first side wall and the inner conductor is equal to the distance between the second side wall and the inner conductor, so that the inner conductor and the outer conductor form an air-like coaxial structure.

[0021] In a possible implementation of the first aspect, the outer conductor further comprises:

[0022] a first connecting wall extending along the first direction and connected to the first side wall and the second side wall respectively, and spaced apart from the inner conductor along a third direction, the first direction intersecting the third direction, and the second direction intersecting the third direction; wherein

[0023] the first side wall, the second side wall and the first connecting wall jointly define an accommodating cavity, and the input port and the one or more output ports all pass through the first side wall to extend out of the accommodating cavity; or

[0024] the input port and the one or more output ports all pass through the first connecting wall to extend out of the accommodating cavity.

[0025] With the technical scheme, the first side wall, the second side wall and the first connecting wall of the outer conductor jointly form a semi-enclosed electromagnetic shielding structure (for example, an electromagnetic shielding structure with an opening facing or away from the circuit board, or an electromagnetic shielding structure surrounding the inner conductor by 270 degrees), so that the inner conductor and the outer conductor form an air-like coaxial structure. In addition, the input port and the output port of the inner conductor can respectively extend out of the accommodating cavity through the first side wall and be electrically connected to the circuit board of the communication device; or the input port and the output port of the inner conductor can respectively extend out of the accommodating cavity through the first connecting wall and be electrically connected to the circuit board of the communication device.

[0026] In a possible implementation of the first aspect, the first side wall, the second side wall and the first connecting wall are integrally formed.

[0027] In a possible implementation of the first aspect, the outer conductor further comprises:

[0028] The second connecting wall extends in the first direction and is connected to the first side wall and the second side wall respectively, and the second connecting wall and the first connecting wall are spaced apart in the third direction;

[0029] The first side wall, the second side wall, the first connecting wall and the second connecting wall jointly define an accommodating cavity, and the input port and the one or more output ports extend out of the accommodating cavity through the second connecting wall;

[0030] The input port and the one or more output ports extend out of the accommodating cavity through the second connecting wall.

[0031] With the technical scheme, the first side wall, the second side wall, the first connecting wall and the second connecting wall of the outer conductor jointly form a semi-enclosed electromagnetic shielding structure (for example, an electromagnetic shielding structure with an opening facing or away from the circuit board, or an electromagnetic shielding structure surrounding the inner conductor by 270 degrees), so that the inner conductor and the outer conductor form an air-like coaxial structure. In addition, the input port and the output port of the inner conductor can respectively extend out of the accommodating cavity through the first side wall and be electrically connected to the circuit board of the communication device; or the input port and the output port of the inner conductor can respectively extend out of the accommodating cavity through the first connecting wall and be electrically connected to the circuit board of the communication device.

[0032] For example, the outer conductor can be a 360-degree closed electromagnetic shielding structure surrounding the inner conductor, or the outer conductor can also be a 270-degree semi-closed electromagnetic shielding structure surrounding the inner conductor, or the outer conductor can also be a 270-degree electromagnetic shielding structure surrounding the inner conductor and jointly forming a closed electromagnetic shielding structure with the circuit board, etc., as long as the outer conductor can form an air-like coaxial structure with the inner conductor.

[0033] In a possible implementation of the first aspect, the first connecting wall is integrally formed with the first side wall, and the second connecting wall is integrally formed with the second side wall.

[0034] In a possible implementation of the first aspect, the input port and the one or more output ports are made of elastic material.

[0035] According to the above technical solution, the input port and the output port of the inner conductor are made of elastic material and have elasticity. When the input port and the output port of the inner conductor are connected to the circuit board of the communication device (for example, in a wing-shaped welding and crimping manner), the inner conductor can be connected to the circuit board, and the elastic input port and the elastic output port can optimize the coplanarity of the wires between the power division connector and the circuit board, avoid the phenomenon of virtual welding caused by too large spacing between the input port and the output port and the circuit board, and ensure the reliability of welding between the inner conductor and the circuit board.

[0036] In a possible implementation of the first aspect, the power division connector further includes an inner conductor connecting piece, the inner conductor connecting piece being connected to the inner conductor and connected to the outer conductor.

[0037] In a possible implementation of the first aspect, the outer conductor further includes an outer conductor connecting piece, the outer conductor connecting piece being arranged on the first side wall and the second side wall respectively, and the outer conductor connecting piece having a recess;

[0038] The inner conductor connecting piece has a protrusion arranged opposite to the recess, and the protrusion and the recess are clamped in the third direction.

[0039] In a possible implementation of the first aspect, the inner conductor connecting piece is integrally injection molded with the inner conductor by using plastic material.

[0040] In a possible implementation of the first aspect, the outer conductor further includes a connecting pin, the connecting pin extending in the third direction and being used to connect to the circuit board of the external communication device, so that the outer conductor is connected to the circuit board.

[0041] According to the above technical solution, the connecting pin of the outer conductor can extend into the circuit board of the communication device and be connected to the circuit board in a welding manner, so that the outer conductor can be connected to the printed circuit board.

[0042] In a possible implementation of the first aspect, the number of the outer conductors includes a plurality of outer conductors, and the plurality of inner conductors correspond to the plurality of outer conductors one by one.

[0043] The power division connector further includes a conductive connecting piece, and adjacent two outer conductors are connected by the conductive connecting piece in the second direction.

[0044] It can be understood that the outer conductors of the embodiments of the present application have accommodating cavities, and the plurality of inner conductors are arranged in the accommodating cavities of the plurality of outer conductors, thereby forming a plurality of channels.

[0045] By using the above technical solution, the adjacent outer conductors of the power division connector are connected through the conductive connecting piece, so that the connection between the plurality of channels formed by the plurality of outer conductors and the plurality of inner conductors is more compact, the high-density integration is realized, and the plurality of channels are electrically connected to the network in terms of electrical performance, so that the power division connector has the functions of reflow resistance (can support reflow soldering process), low passive intermodulation (PIM) and low resonance.

[0046] In a possible implementation of the above first aspect, the power division connector further comprises an adsorption connecting piece having a plane, and the adsorption connecting piece simultaneously connects the first connecting walls of the plurality of outer conductors.

[0047] By using the above technical solution, in order to make the power division connector of the embodiments of the present application more convenient to assemble with the circuit board, the adsorption connecting piece is arranged on the outer conductor, and the adsorption connecting piece is arranged on the side of the outer conductor away from the circuit board (for example, the first connecting wall of the outer conductor), so that the plane of the adsorption connecting piece serves as an adsorption surface. When the power division connector is assembled with the circuit board by a tool (for example, welded by an automatic placement machine), the plane of the adsorption connecting piece of the embodiments of the present application can serve as a welding adsorption surface of the automatic placement machine, and plays a role of supporting the adsorption and grabbing of the automatic placement machine.

[0048] In addition, when the power division connector of the embodiments of the present application has a plurality of outer conductors, the adsorption connecting piece can simultaneously connect the first connecting walls of the plurality of outer conductors, so as to simultaneously grab the plurality of outer conductors of the power division connector by the adsorption connecting piece, and assemble the plurality of outer conductors on the circuit board together.

[0049] The second aspect of the present application provides a communication device. Specifically, the communication device comprises: any one of the power division connectors in the possible implementations of the first aspect;

[0050] The circuit board is connected with the outer conductors of the power division connector, and the output port and the input port of the inner conductors of the power division connector are respectively electrically connected with the circuit board.

[0051] The antenna is connected with the circuit board, and is electrically connected with the output port of the inner conductors through the circuit board.

[0052] With the technical scheme, the power division connector of the embodiment is mounted on the circuit board, the outer conductor has a hollow accommodating cavity, the inner conductor is located in the hollow accommodating cavity and is electrically connected with the circuit board and the antenna through the output port and the input port extending out of the accommodating cavity. Compared with the microstrip line design printed on the circuit board, the microstrip line is limited to the plane of the circuit board and has a long length, while the inner conductor of the power division connector of the embodiment runs in the accommodating cavity, which can effectively utilize the height space in the accommodating cavity, save the layout space of the microstrip line on the circuit board, reduce the length of the microstrip line, reduce the loss (such as the feed network loss), improve the radiation efficiency, and thus improve the stability and reliability of the communication device (such as a base station) of the embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0053] FIG. 1 is a structural schematic diagram of a communication device according to an embodiment of the present application;

[0054] FIG. 2A is a structural schematic diagram of a communication device according to some embodiments;

[0055] FIG. 2B is a partial enlarged schematic diagram of the communication device in FIG. 2A;

[0056] FIG. 3 is a schematic diagram of a communication device according to an embodiment of the present application;

[0057] FIG. 4A is a structural schematic diagram of a power division connector according to an embodiment of the present application;

[0058] FIG. 4B is a side view of the power division connector according to an embodiment of the present application;

[0059] FIG. 5 is a schematic diagram of an outer conductor and a conductive connecting piece of a power division connector according to an embodiment of the present application;

[0060] FIG. 6A is an exploded schematic diagram of a power division connector according to an embodiment of the present application;

[0061] FIG. 6B is a schematic diagram of the connection relationship between a power division connector and an antenna according to an embodiment of the present application;

[0062] FIG. 6C is a front view of a power division connector according to an embodiment of the present application;

[0063] FIG. 7A is a structural schematic diagram of a power division connector according to an embodiment of the present application;

[0064] FIG. 7B is a side view of the power division connector according to an embodiment of the present application;

[0065] FIG. 7C is a side exploded schematic diagram of a power division connector according to an embodiment of the present application;

[0066] Fig. 8A is an exploded view of a power divider connector according to an embodiment of the present application;

[0067] Fig. 8B is a front view of the power divider connector according to an embodiment of the present application;

[0068] Fig. 8C is a perspective view of an inner conductor connector of the power divider connector according to an embodiment of the present application;

[0069] Fig. 9A is a structural view of a power divider connector according to another embodiment of the present application;

[0070] Fig. 9B is a side view of the power divider connector according to another embodiment of the present application;

[0071] Fig. 9C is a side view of the power divider connector according to another embodiment of the present application;

[0072] Fig. 10A is an exploded view of a power divider connector according to another embodiment of the present application;

[0073] Fig. 10B is a front view of the power divider connector according to another embodiment of the present application. DETAILED DESCRIPTION

[0074] The power divider connector and the communication device according to the embodiments of the present application have an outer conductor and an inner conductor, which together form an air-like coaxial structure, so that the power divider connector can realize power dividing function and has low feeding loss and high isolation when connected with a circuit board of a communication device.

[0075] To facilitate the description of the technical solutions of the present application, some concepts related to the present application are described before the power divider connector and the communication device according to the embodiments of the present application are described in detail.

[0076] Power divider: also known as power divider, is a device that divides the energy of one input signal into two or more output signals with equal or unequal energy, or combines multiple input signals into one output signal, also known as combiner.

[0077] Multiple Input Multiple Output (MIMO): is a wireless communication technology that uses multiple antennas at the transmitting end and the receiving end to improve the performance and data transmission rate of communication.

[0078] Hybrid Beamforming (HBF): Hybrid beamforming technology is a technology that sends signals to wireless terminals in a way that energy is concentrated and directional, which can comprehensively improve the signal quality received by wireless terminals and improve throughput.

[0079] Feed network loss: The feed network is an important part of the base station antenna, which is composed of transmission lines and power dividers and other devices. The feed network is a link between the antenna port and the array unit, which forms a path for radio frequency signal transmission, and realizes the functions of impedance matching, amplitude and phase distribution, etc. The insertion loss in the transmission process is the feed network loss.

[0080] Passive Intermodulation Distortion (PIM): In a passive communication system, due to the nonlinear characteristics of materials and structures, when two or more frequency signals pass through the system at the same time, intermodulation distortion is generated.

[0081] Grounding: The conductive object is connected, and the whole formed is electrically connected as GND (ground or 0 line).

[0082] The power division connector provided by the embodiments of the present application is applied to a communication device. The communication device related by the embodiments of the present application may be, for example: an active antenna unit (AAU), a base station using a massive multiple-input multiple-output (Massive MIMO) technology, and the like, as well as a smart car, various internet of things (IOT) devices, including various smart home devices (such as smart meters and smart home appliances) and smart city devices (such as security or monitoring devices, smart road traffic facilities), and the like. Terminal with wireless access capability.

[0083] The embodiments of the present application do not specially limit the specific form of the above-mentioned communication device, and the following is described by taking the communication device as a base station using a massive multiple-input multiple-output (Massive MIMO) technology for convenience.

[0084] FIG. 1 shows a structural schematic diagram of a base station provided by the embodiments of the present application.

[0085] Referring to FIG. 1, the above-mentioned base station 1 mainly includes: a circuit board (PCB) 10, a power division connector 20, an antenna 30, and a surrounding frame 40.

[0086] Specifically, as shown in FIG. 1, the circuit board 10, the power division connector 20 and the antenna 30 can be respectively arranged at different layers in the thickness direction of the base station 1, the layers can be parallel to each other, the plane where each layer is located can be referred to as the X-Y plane, and the direction perpendicular to the X-Y plane can be referred to as the Z direction (i.e., the thickness direction). In other words, the circuit board 10, the antenna 30 and the power division connector 20 can be distributed in layers in the Z direction.

[0087] The circuit board 10 is located between the antenna 30 and the power division connector 20. It can be understood that the circuit board 10 can be electrically connected to the antenna 30 and the power division connector 20 through a hybrid beamforming (HBF) technology, and the power division connector 20 can divide the input signal energy from the circuit board 10 into one or more output signal energies and transmit the output signal energy to the antenna 30 to realize the power division function.

[0088] Exemplarily, as shown in FIG. 1, along the thickness direction (as shown by the Z direction in FIG. 1), the frame 40 is arranged on the upper side of the circuit board 10, the frame 40 is provided with an opening 41, and the two antenna elements 31 of the two antennas 30 are respectively connected to the circuit board 10 through the opening 41, and the power division connector 20 is connected to the lower side of the circuit board 10. That is, the two antennas 30 and the power division connector 20 are respectively connected to the opposite sides of the circuit board 10.

[0089] The number of the antennas 30 is not limited in the embodiments of the present application, and the above-mentioned embodiment shows that two antennas 30 are connected to the power division connector 20 through the circuit board 10. For example, the number of the antennas 30 can also be one, and the power division connector 20 will transmit one output signal energy to the one antenna 30; or the number of the antennas 30 can also be three, four, five, six, seven or more, and the power division connector 20 will transmit multiple output signal energies to the multiple antennas 30. In other words, the number of the multiple output signal energies output by the power division connector 20 in the embodiments of the present application corresponds to the number of the antennas 30.

[0090] It can be understood that the structure shown in the embodiments of the present application does not constitute a specific limitation on the base station 1. In other embodiments of the present application, the base station 1 can include more or fewer components than shown, or combine certain components, or split certain components, or different component arrangements. For example, the base station 1 can also include a shielding cover, a filter, a transceiver (TRx) board and the like (not shown in the figure).

[0091] With the development of science and technology, base stations with power division function are widely used, and the base station generally uses a power divider in the form of a microstrip line to realize the power division function of the base station.

[0092] The above-mentioned embodiments of the power divider in the form of microstrip line will be further described in detail below with reference to the accompanying drawings.

[0093] Fig. 2A shows a schematic diagram of a base station with a power divider in the form of microstrip line, and Fig. 2B shows a partial enlarged schematic diagram of the microstrip line structure in Fig. 2A.

[0094] As shown in Fig. 2A, the base station 100 adopts a design of arranging a microstrip line on a circuit board 101, i.e., a microstrip line 102 is printed on the circuit board 101, and a dipole 1031 of an antenna 103 is connected to the circuit board 101, so that the dipole 1031 of the antenna 103 can be connected to the microstrip line 102 arranged on the circuit board 101 through the circuit board 101. As shown in Fig. 2B, the microstrip line 102 has a plurality of traces 1021, which are curved due to the limitation of the trace space of the circuit board. Thus, the microstrip line 102 printed on the circuit board 101 can achieve the power dividing function for the antenna 103.

[0095] It is understood by those skilled in the art that the power dividing performance of the power divider is mainly determined by two important parameters (loss and isolation). However, in the above-mentioned power divider in the form of microstrip line, on the one hand, the traces 1021 of the microstrip line 102 printed on the circuit board 101 have a long trace length and a large loss; on the other hand, due to the limitation of the trace space of the circuit board 101, the trace space of the microstrip line 102 on the circuit board 101 is compact, the distance between the adjacent traces 1021 of the microstrip line 102 is short, and there is a coupling effect, which makes it difficult to achieve the design requirement of the isolation.

[0096] In order to achieve low-loss transmission of electrical signals and power dividing function, the embodiments of the present application provide a power dividing connector, which forms an air-like coaxial structure through an outer conductor and an inner conductor of the power dividing connector, and is connected to a circuit board of a base station to achieve the power dividing function, while ensuring low power feeding loss and high isolation of the power dividing connector.

[0097] The specific structure of the power dividing connector will be described in detail below with reference to the accompanying drawings. In the embodiments, the power dividing connector of the base station adopts an outer conductor in the form of inverted U-shaped cross section to form a closed electromagnetic shielding structure with the circuit board of the base station (Embodiment 1), specifically, the opening of the semi-closed electromagnetic shielding structure formed by the outer conductor in Embodiment 1 faces the circuit board. The power dividing connector of the base station adopts an outer conductor in the form of quadrilateral cross section to form a closed electromagnetic shielding structure (Embodiment 2). The power dividing connector of the base station adopts an outer conductor in the form of U-shaped cross section to form a semi-closed electromagnetic shielding structure (Embodiment 3), specifically, the opening of the semi-closed electromagnetic shielding structure formed by the outer conductor in Embodiment 3 faces away from the circuit board of the base station.

[0098] Next, the power divider connector of the base station is described for Embodiment One, Embodiment Two and Embodiment Three respectively.

[0099] Embodiment One

[0100] Fig. 3 shows a connection diagram of the power divider connector and the base station according to the present application.

[0101] In the present application, referring to Fig. 3, the power divider connector 20 is connected to the circuit board 10.

[0102] Specifically, as shown in Fig. 3, the outer conductor 21 is connected to the circuit board 10 and forms a closed electromagnetic shielding structure together with the circuit board 10 to accommodate the inner conductor 22. The output port and the input port (not shown in the figure) of the inner conductor 22 are electrically connected to the circuit board 10, so that the vibrator 31 of the antenna 30 can be electrically connected to the output port of the inner conductor 22 through the circuit board 10. Exemplarily, the power divider connector 20 of the present application is connected to the circuit board 10 by a tool (for example, an automatic patch machine). The circuit board 10 transmits the input signal energy to the input port of the inner conductor 22 and transmits one of the output signal energies to the antenna 30 through the circuit board 10.

[0103] Fig. 4A shows a perspective view of the power divider connector according to the present application, and Fig. 4B shows a side view of the power divider connector according to the present application.

[0104] In the present application, referring to Figs. 4A and 4B, the power divider connector 20 includes two outer conductors 21 and two inner conductors 22 corresponding to the two outer conductors 21 respectively, and the two outer conductors 21 form two channels using air as the medium respectively with the corresponding one of the inner conductors 22.

[0105] Specifically, as shown in Figs. 4A and 4B, each outer conductor 21 includes a first side wall 211 (also called left side wall), a second side wall 212 (also called right side wall) and a first connecting wall 213 (also called top wall) extending along a first direction (i.e. the length direction of the power divider connector 20, as shown by the X direction in Figs. 4A and 4B), which together define a hollow rectangular cross-section accommodating cavity 214 extending along the first direction X and having both ends of the first direction X penetrating through. However, the present application does not limit the specific structure of the accommodating cavity 214, and the shape and volume of the accommodating cavity 214 are limited by the shape and height of the outer conductor 21. For example, the outer conductor 21 can also be a structure with a triangular, circular or other polygonal cross-section, and the accommodating cavity 214 correspondingly has a triangular, circular or other polygonal cross-section.

[0106] It can be understood that the accommodating cavity 214 formed by the outer conductor 21 can be the non-hermetic accommodating cavity 214 or the hermetic accommodating cavity (not shown in the figure) described above. Moreover, the embodiments of the present application do not limit the type of gas as the medium, and any gas meeting the requirement of low dielectric loss can be used as the medium between the inner conductor 22 and the outer conductor 21 of the embodiments of the present application.

[0107] In the above-described embodiments, air is used as the medium between the inner conductor 22 and the outer conductor 21 in the non-hermetic accommodating cavity formed by the outer conductor 21 at both ends; however, the embodiments of the present application can also use air, helium, argon, nitrogen and the like as the medium between the inner conductor 22 and the outer conductor 21 in the hermetic accommodating cavity 214 formed by the outer conductor 21. The hermetic accommodating cavity 214 can also play the role of waterproofing and dustproofing, and can improve the stability of the power dividing connector 20 and prolong the service life of the power dividing connector 20.

[0108] For the convenience of description, the use of air as the medium between the inner conductor 22 and the outer conductor 21 in the non-hermetic accommodating cavity 214 formed by the outer conductor 21 is taken as an example for description below.

[0109] Exemplarily, as shown in FIG. 4B, the two outer conductors 21 are symmetrically arranged along the second direction (i.e., the width direction of the power dividing connector, as shown by the Y direction in FIG. 4B). The first side wall 211 and the second side wall 212 of each outer conductor 21 are spaced apart from the opposite sides of the corresponding inner conductor 22, and the first connecting wall 213 of the outer conductor 21 is spaced apart from the corresponding inner conductor 22 along the third direction (i.e., the height direction of the power dividing connector, as shown by the Z direction in FIG. 4B), and is connected with the first side wall 211 and the second side wall 212, respectively, to form a hollow inverted U-shaped structure. The semi-closed inverted U-shaped structure 270° surrounds the inner conductor 22, and the opening is arranged to face the circuit board 10. Moreover, the first side wall 211 of the two outer conductors 21 is connected with the circuit board 10, so that the two outer conductors 21 together form a closed electromagnetic shielding structure that 360° surrounds the corresponding inner conductor 22 with the circuit board 10. Furthermore, each inner conductor 22 is isolated from the first side wall 211, the second side wall 212 and the first connecting wall 213 of the corresponding outer conductor 21 by air. The first direction X (i.e., the length direction of the power dividing connector 20) is perpendicular to the second direction Y (i.e., the width direction of the power dividing connector 20), and the second direction Y is perpendicular to the third direction Z (i.e., the height direction of the power dividing connector 20).

[0110] It can be understood that when the power division connector 20 of the embodiment of the present application only includes one outer conductor 21 and the corresponding inner conductor 22, the first side wall 211 and the second side wall 212 of the outer conductor 21 are both connected with the circuit board 10, so that the first side wall 211, the second side wall 212 and the first connecting wall 213 of the outer conductor 21 together form a closed electromagnetic shielding structure surrounding the inner conductor 22 by 360°.

[0111] Exemplarily, the first side wall 211, the second side wall 212 and the first connecting wall 213 of the outer conductor 21 of the embodiment of the present application are integrally formed, and the first side wall 211, the second side wall 212 and the first connecting wall 213 of the outer conductor 21 are made by mechanical bending. However, the embodiment of the present application does not limit the preparation method and the manufacturing material of the outer conductor 21, as long as the electromagnetic shielding structure can be formed outside the inner conductor 22. For example, the outer conductor 21 of the embodiment of the present application can also be made by profile forming or sheet metal stamping, and the outer conductor 21 of the embodiment of the present application is made of a metal conductive material.

[0112] As shown in FIGS. 4A and 4B, the power division connector 20 of the embodiment of the present application further includes an adsorption connecting piece 23. The adsorption connecting piece 23 is connected with the first connecting wall 213 of the outer conductor 21 and has a plane 231 extending along the first direction X. The plane 231 of the adsorption connecting piece 23 can serve as an adsorption surface, and when the power division connector 20 is assembled with the circuit board 10 by a tool (for example, welding by an automatic placement machine), the plane 231 of the adsorption connecting piece 23 of the embodiment of the present application serves as a welding adsorption surface of the automatic placement machine, and plays a role of supporting the adsorption and grabbing of the automatic placement machine. Exemplarily, the adsorption connecting piece 23 of the embodiment of the present application is made of a Mylar material.

[0113] Exemplarily, along the second direction (as shown by the Y direction in FIGS. 4A and 6A), the adsorption connecting piece 23 is arranged on the side of the outer conductor 21 away from the circuit board 10, and simultaneously connects the first connecting walls 213 of the two outer conductors 21, so as to facilitate the automatic placement machine to grab the two outer conductors 21 of the power division connector 20 at the same time, thereby assembling the two outer conductors 21 on the circuit board 10 together. However, the embodiment of the present application does not limit the number of outer conductors 21 connected by the adsorption connecting piece 23, for example, it can also be connected with only the first connecting wall 213 of one outer conductor 21.

[0114] Referring to FIG. 5 and combining FIGS. 4B and 6A, the power division connector 20 of the embodiment of the present application further includes a conductive connecting piece 24.

[0115] Specifically, as shown in FIG. 5, along the second direction (as shown by the Y direction in FIG. 5), the conductive connecting piece 24 is arranged between the two outer conductors 21, so as to connect the two adjacent outer conductors 21 through the conductive connecting piece 24.

[0116] Exemplarily, the conductive connecting member 24 is conductive glue, and the two adjacent outer conductors 21 are assembled by the conductive glue through the adhesion process to connect the multiple channels formed by the multiple outer conductors 21 and the multiple inner conductors 22 in the power division connector 20 more compactly, realize the high-density integration, and realize the same network ground of the multiple channels (i.e. the multiple outer conductors 21 and the corresponding multiple inner conductors 22) in the electrical performance, so that the power division connector 20 has the functions of reflow resistance (can support the reflow soldering process), low PIM (passive intermodulation) and low resonance. However, the material and structure of the conductive connecting member 24 are not limited in the embodiment of the application, as long as the two adjacent outer conductors 21 can be fixed together and conductively connected.

[0117] Continuing to refer to FIG. 4B, the two inner conductors 22 are arranged in the hollow accommodating cavities 214 of the two outer conductors 21. The two inner conductors 22 extend along the first direction X, each inner conductor 22 is arranged at intervals with the corresponding outer conductor 21, and the distance D1 between each inner conductor 22 and the first side wall 211 is equal to the distance D2 between the inner conductor 22 and the second side wall 212, so that each inner conductor 22 forms a quasi-air coaxial structure with the corresponding outer conductor 21. In addition, air is used as the medium between each inner conductor 22 and the corresponding outer conductor 21, so that each inner conductor 22 and the corresponding outer conductor 21 are isolated by air. That is, there is no medium filling between each inner conductor 22 and the corresponding outer conductor 21.

[0118] Exemplarily, the inner conductor 22 is a sheet-shaped metal part, but the shape and material of the inner conductor 22 are not limited in the embodiment of the application, as long as air is used as the medium between the inner conductor 22 and the outer conductor 21, and a quasi-air coaxial structure can be formed to transmit signal energy. For example, the inner conductor 22 can also be in other shapes such as a column shape, and the inner conductor 22 is made of a metal conductive material.

[0119] Therefore, the first side wall 211, the second side wall 212 and the first connecting wall 213 of the outer conductor 21 and the circuit board 10 together form a closed electromagnetic shielding structure outside the inner conductor 22, and the inner conductor 22 is independent of the outer conductor 21 and is accommodated in the hollow accommodating cavity 214 of the outer conductor 21, so that the outer conductor 21 and the inner conductor 22 form a semi-closed quasi-air coaxial structure. It can be understood that, since the dielectric constant of air is close to 1, the quasi-air coaxial structure formed by the outer conductor 21 and the inner conductor 22 has the effect of reducing the loss when transmitting signal energy.

[0120] It can be understood that the number of the outer conductors 21 and the inner conductors 22 is not limited in the embodiments of the present application, as long as the number of the outer conductors 21 and the inner conductors 22 can correspond to each other. For example, the number of the outer conductors 21 can be one, two, three, four, five, six, seven, eight or more, and the number of the inner conductors 22 can be one, two, three, four, five, six, seven, eight or more.

[0121] For the convenience of description, one outer conductor 21 and one corresponding inner conductor 22 (i.e. one channel of the two channels) are taken as an example for description below.

[0122] Referring to FIG. 6A and combining with FIG. 4B, the inner conductor 22 has an input port 221 and a plurality of output ports 222 in the embodiments of the present application.

[0123] Exemplarily, as shown in FIG. 6A, the inner conductor 22 has seven pins which are arranged at intervals along a first direction (as shown by the X direction in FIG. 6A). Among them, one pin serves as an input port 221 of the inner conductor 22, and the other six pins respectively serve as six output ports 222 of the inner conductor 22. In other words, the inner conductor 22 includes one input port 221 and six output ports 222, and the one input port 221 and the six output ports 222 are arranged at intervals along the first direction X. As shown in FIG. 4B and FIG. 6A, after each pin serving as the input port 221 and the output port 222 of the inner conductor 22 extends out of the corresponding accommodating cavity 214 along a third direction (as shown by the Z direction in FIG. 4B and FIG. 6A), it is bent towards a second direction (as shown by the Y direction in FIG. 4B and FIG. 6A) to be electrically connected with the circuit board 10.

[0124] Therefore, as shown in FIG. 6B, in the working process of the inner conductor 22 (for example, after the power division connector 20 is connected with the circuit board 10), the inner conductor 22 can divide the input signal energy from one input port 221 into six output signal energies corresponding to the six output ports 222, and output the six output signal energies to the six antennas 30 through the six output ports 222, so as to realize the power division function of the power division connector 20 of the base station 1 in the embodiments of the present application.

[0125] Each inner conductor 22 has one input port 221 and six output ports 222 in the above-mentioned embodiments. However, the number of the output ports 222 of the inner conductor 22 is not limited in the embodiments of the present application. For example, the number of the output ports 222 of each inner conductor 22 can also be one, two, three, four, five, seven, eight or more.

[0126] Exemplarily, continuing to refer to FIG. 4B, the input port 221 and the output port 222 of the inner conductor 22 are made of elastic material, in other words, the input port 221 and the output port 222 (i.e. the pin) of the inner conductor 22 are elastic. Thus, the input port 221 and the output port 222 with elasticity can optimize the coplanarity of the wire between the power division connector 20 and the circuit board 10.

[0127] For example, as shown in FIG. 4B, when the input port 221 and the output port 222 of the inner conductor 22 are welded with the circuit board 10 of the base station 1, the circuit board 10 is provided with the solder 11 corresponding to the input port 221 and the output port 222, and if it is assumed that there is a deviation between the circuit board 10 and the power division connector 20 in the third direction Z, there is a gap H between the pin (i.e. the input port 221) of the left inner conductor 22 and the solder 11. Since the pin of the embodiment of the present application is elastic, the pin of the left inner conductor 22 can be pressed down by means of welding pressure connection (for example, wing-shaped welding pressure connection) to connect the pin with the solder 11, so as to make the inner conductor 22 connected with the circuit board 10, thereby avoiding the phenomenon of virtual welding caused by too large gap (for example, the gap H between the pin and the solder 11) between the input port 221 and the output port 222 and the circuit board 10, and ensuring the reliability of the welding between the inner conductor 22 and the circuit board 10.

[0128] In summary, on the one hand, the power division connector 20 of the embodiment of the present application has the outer conductor 21 and the inner conductor 22, wherein the inner conductor 22 has the input port 221 and the plurality of output ports 222 (or one output port 222). Thus, when the power division connector 20 is connected with the circuit board 10 of the base station 1, the input port 221 of the inner conductor 22 can receive one input signal energy from the circuit board 10, and can output a plurality of output signal energies (or one output signal energy) through one or more output ports, so as to realize the power division function.

[0129] Further, the inner conductor 22 of the power division connector 20 is arranged in the hollow accommodating cavity 214 formed by the outer conductor 21, and the inner conductor 22 is independent of the outer conductor 21, so that the air is used as the medium between the inner conductor 22 and the outer conductor 21, and the low dielectric loss of the air is used to reduce the loss (for example, the feed network loss) of the power division connector 20 in the process of transmitting signal energy, and to improve the radiation efficiency.

[0130] In addition, compared with the power divider in the form of microstrip line printed on the printed circuit board, the power divider 20 of the embodiment of the application is connected with the circuit board 10 through the outer conductor 21 and the inner conductor 22 instead of being printed on the circuit board 10, and the layout space is not limited by the wiring space of the circuit board 10. Therefore, the power divider 20 of the application has sufficient layout space, and can reduce the coupling effect between the wirings of the inner conductor 22 to improve the isolation, thereby improving the stability and reliability of the base station 1 of the embodiment of the application.

[0131] Referring to FIG. 6C in combination with FIG. 6A, the power divider 20 of the embodiment of the application further comprises an inner conductor connecting piece 223, and the outer conductor 21 further comprises an outer conductor connecting piece 215. The inner conductor connecting piece 223 is connected to the inner conductor 22.

[0132] Specifically, as shown in FIG. 6A and FIG. 6C, each outer conductor 21 has five pairs of outer conductor connecting pieces 215, and each inner conductor 22 has five corresponding inner conductor connecting pieces 223. Each pair of outer conductor connecting pieces 215 is arranged on the first side wall 211 and the second side wall 212 (not shown in the figure) of the outer conductor 21, and the two outer conductor connecting pieces 215 correspond to each other along the second direction Y. Each pair of outer conductor connecting pieces 215 includes two corresponding recesses 2151 (one recess 2151 on the first side wall 211 is shown in the figure), and each inner conductor connecting piece 223 has a pair of corresponding protrusions 2231. Along the second direction Y, each pair of protrusions 2231 is arranged on opposite sides of the corresponding inner conductor connecting piece 223. Along the third direction Z, each pair of protrusions 2231 is arranged opposite to the two recesses 2151 of each pair of outer conductor connecting pieces 215, i.e. ten protrusions 2231 of the five inner conductor connecting pieces 223 are respectively clamped with the corresponding recesses 2151. Each protrusion 2231 is inserted into and clamped with the corresponding recess 2151 along the third direction Z, so that the outer conductor 21 and the inner conductor 22 are connected through the outer conductor connecting piece 215 and the inner conductor connecting piece 223.

[0133] In addition, as shown in FIG. 6A, the conductive connecting piece 24 between the two adjacent outer conductors 21 is arranged away from the inner conductor connecting piece 223 and the outer conductor connecting piece 215 to avoid interfering with the connection of the inner conductor connecting piece 223 and the corresponding outer conductor connecting piece 215, and adversely affecting the connection between the inner conductor 22 and the outer conductor 21.

[0134] Exemplarily, as shown in FIG. 6C, the inner conductor connector 223 of the embodiment of the present application is integrally injection molded with the inner conductor 22 by using plastic material, so as to insulate and connect the outer conductor 21 and the inner conductor 22. However, the embodiment of the present application does not limit the connecting manner of the inner conductor connector 223 and the inner conductor 22, as long as the inner conductor connector 223 and the inner conductor 22 can be connected. For example, the inner conductor connector 223 can also be installed on the inner conductor 22 by using clamping manner.

[0135] In addition, the embodiment of the present application does not limit the number of the inner conductor connector 223 and the outer conductor connector 215, as long as the number of the inner conductor connector 223 and the outer conductor connector 215 can correspond to each other, and the outer conductor 21 and the inner conductor 22 can be connected. For example, the number of the outer conductor connector 215 of each outer conductor 21 of the embodiment of the present application can also be 2, 3, 4, 6, 7, 8 or more, and the number of the inner conductor connector 223 on each inner conductor 22 can also be 2, 3, 4, 6, 7, 8 or more.

[0136] Continuing to refer to FIG. 6C and combining with FIG. 4B, the outer conductor 21 of the embodiment of the present application further comprises a connecting pin 216.

[0137] Specifically, as shown in FIG. 6C, the connecting pin 216 extends along the third direction (as shown by the Z direction in FIG. 6C), and each first side wall 211 of each outer conductor 21 has four connecting pins 216, and the four connecting pins 216 are spaced apart along the first direction (as shown by the X direction in FIG. 6C) on each first side wall 211 of each outer conductor 21. As shown in FIG. 4B, when the outer conductor 21 of the power divider connector 20 of the embodiment of the present application is mounted on the circuit board 10, the connecting pin 216 of each outer conductor 21 is inserted on the circuit board 10 and connected with the circuit board 10 by welding, so that the two outer conductors 21 are connected with the circuit board 10 through the first side walls 211 on both sides of the second direction Y, so that the two outer conductors 21 can be mounted on the circuit board 10 and jointly form a closed electromagnetic shielding structure surrounding the corresponding inner conductor 22. However, the embodiment of the present application does not limit the connecting manner of the connecting pin 216 and the circuit board 10, as long as the connecting pin 216 and the circuit board 10 can be connected, so that the outer conductor 21 can be mounted on the circuit board 10. For example, the connecting pin 216 can also be connected with the circuit board 10 by riveting.

[0138] In addition, the number and arrangement of the connecting pins 216 of each outer conductor 21 are not limited in the embodiments of the present application. As shown in FIG. 6C, the first sidewall 211 of the outer conductor 21 is provided with four connecting pins 216; but the present application is not limited thereto. It can be understood that when the power dividing connector 20 of the embodiments of the present application includes only one outer conductor 21 and the corresponding inner conductor 22, the first sidewall 211 and the second sidewall 212 of the outer conductor 21 are both connected to the circuit board 10, and the connecting pins 216 can also be arranged on the second sidewall 212 of the outer conductor 21, and the number of the connecting pins 216 on the first sidewall 211 and the second sidewall 212 of the outer conductor 21 can be one, two, three, five, six, seven, eight or more, respectively.

[0139] In summary, the outer conductor 21 in the power dividing connector 20 of the first embodiment of the present application is a semi-closed electromagnetic shielding structure, and the opening is arranged towards the circuit board 10, so that when the outer conductor 21 is connected to the circuit board 10, the two together form a closed electromagnetic shielding structure surrounding the inner conductor 22, replacing the microstrip line type power divider printed on the printed circuit board, and achieving low-loss transmission and power dividing function of the electrical signal in the base station 1.

[0140] Embodiment Two

[0141] In the embodiments of the present application, the difference from the first embodiment is that the outer conductor 51 of the embodiments of the present application forms a quadrilateral closed electromagnetic shielding structure around the inner conductor 52. In addition, the remaining structures of the power dividing connector 50 of the embodiments of the present application are the same as those of the first embodiment, such as the adsorptive connecting piece 23, the conductive connecting piece 24, the connecting pin 216 of the outer conductor 21, and the input port 221 and the output port 222 of the inner conductor 22 of the power dividing connector 20, which will not be described here.

[0142] It can be understood that the number of the outer conductors 51 and the inner conductors 52 of the power dividing connector 50 of the embodiments of the present application can include one or more, and the outer conductor 51 can form a non-closed or closed containing cavity.

[0143] In order to facilitate the description, one outer conductor 51 and one corresponding inner conductor 52 (i.e. one channel) are taken as an example, and air is taken as the medium between the inner conductor 52 and the outer conductor 51 in the non-closed containing cavity formed by the outer conductor 51 for description.

[0144] FIG. 7A shows a perspective view of the power dividing connector provided by the second embodiment of the present application, and FIG. 7B shows a side view of the power dividing connector provided by the second embodiment of the present application.

[0145] In the embodiments of the present application, referring to FIGS. 7A and 7B, the power dividing connector 50 includes an outer conductor 51 and an inner conductor 52.

[0146] Specifically, as shown in FIGS. 7A and 7B, the outer conductor 51 includes a first side wall 511 (also referred to as a left side wall), a second side wall 512 (also referred to as a right side wall), a first connecting wall 513 (also referred to as a top wall), and a second connecting wall 514 (also referred to as a bottom wall) extending along a first direction (as shown by the X direction in FIGS. 7A and 7B). The first side wall 511, the second side wall 512, the first connecting wall 513, and the second connecting wall 514 together define a hollow rectangular cross-section accommodating cavity 515 extending along the first direction X and having both ends of the first direction X passing through. However, the specific structure of the accommodating cavity 515 is not limited in the embodiments of the present application, and the shape and volume of the accommodating cavity 515 are limited by the shape and height of the outer conductor 51. For example, the outer conductor 51 can also be a structure with a triangular, circular, or other polygonal cross-section, and the accommodating cavity 515 correspondingly has a triangular, circular, or other polygonal cross-section.

[0147] For example, as shown in FIG. 7B, along a second direction (as shown by the Y direction in FIG. 7B), the first side wall 511 and the second side wall 512 of the outer conductor 51 are spaced apart on opposite sides of the inner conductor 52, and along a third direction (as shown by the Z direction in FIG. 7B), the first connecting wall 513 and the second connecting wall 514 of the outer conductor 51 are spaced apart on opposite sides of the inner conductor 52. Moreover, the first connecting wall 513 is connected to the first side wall 511 and the second side wall 512, respectively, and the second connecting wall 514 is connected to the first side wall 511 and the second side wall 512, respectively, to form a hollow frame-shaped structure, which constitutes a closed electromagnetic shielding structure surrounding the inner conductor 52 by 360°, so that the inner conductor 52 is isolated from the first side wall 511, the second side wall 512, the first connecting wall 513, and the second connecting wall 514 of the outer conductor 51 by air.

[0148] For example, as shown in FIG. 7C, the first connecting wall 513 of the outer conductor 51 of the embodiments of the present application is integrally formed with the first side wall 511, and the second connecting wall 514 is integrally formed with the second side wall 512. That is, the first connecting wall 513 and the first side wall 511 together form an outer wall of the accommodating cavity 515 with an inverted L-shaped cross-section, and the second connecting wall 514 and the second side wall 512 together form an outer wall of the accommodating cavity 515 with an L-shaped cross-section. Moreover, the first connecting wall 513 and the first side wall 511 and the second connecting wall 514 and the second side wall 512 of the outer conductor 51 of the embodiments of the present application are both made by mechanical bending. However, the preparation method and the material of the outer conductor 51 are not limited in the embodiments of the present application, as long as a closed electromagnetic shielding structure can be formed outside the inner conductor 52. For example, the outer conductor 51 of the embodiments of the present application can also be made by profile forming or sheet metal stamping, and the outer conductor 51 of the embodiments of the present application is made of a metal conductive material.

[0149] Continuing to refer to FIG. 7B, the inner conductor 52 is disposed in the hollow accommodating cavity 515 of the outer conductor 51. The inner conductor 52 extends along the first direction X, and the inner conductor 52 is spaced apart from the outer conductor 51, and the distance D1 between the inner conductor 52 and the first side wall 511 is equal to the distance D2 between the inner conductor 52 and the second side wall 512. Moreover, air is used as the medium between the inner conductor 52 and the outer conductor 51. Thus, the inner conductor 52 is independent of the outer conductor 51 and is accommodated in the hollow accommodating cavity 515 of the outer conductor 51, so that the outer conductor 51 and the inner conductor 52 together form a fully-enclosed air-like coaxial structure.

[0150] Exemplarily, the inner conductor 52 is a sheet-shaped metal piece, but the embodiments of the present application do not limit the shape and material of the inner conductor 52, as long as air is used as the medium between the inner conductor 52 and the outer conductor 51, and an air-like coaxial structure can be formed to transmit signal energy. For example, the inner conductor 52 can also be in other shapes such as a column shape, and the inner conductor 52 is made of a metal conductive material.

[0151] Referring to FIG. 8A in combination with FIGS. 7A and 7B, the inner conductor 52 has an input port 521 and a plurality of output ports 522. The second connecting wall 514 of the outer conductor 51 has a plurality of openings 516 corresponding to the input port 521 and the plurality of output ports 522 of the inner conductor 52.

[0152] Exemplarily, as shown in FIG. 8A, the inner conductor 52 has seven pins spaced apart along the first direction (as shown by the X direction in FIG. 8A). Among them, one pin serves as an input port 521 of the inner conductor 52, and the other six pins respectively serve as six output ports 522 of the inner conductor 52. In other words, the inner conductor 52 includes one input port 521 and six output ports 522, and the input port 521 and the six output ports 522 are spaced apart along the first direction X. The second connecting wall 514 of the outer conductor 51 has seven openings 516 corresponding to the seven pins (i.e., the input port 521 and the output ports 522) of the inner conductor 52. As shown in FIGS. 7A and 7B, the seven pins serving as the input port 521 and the output ports 522 of the inner conductor 52 respectively pass through the corresponding openings 516 along the third direction (as shown by the Z direction in FIGS. 7A and 7B) to protrude into the accommodating cavity 515 and electrically connect with the circuit board 10, so that the inner conductor 52 can be connected to the circuit board 10 of the base station 1.

[0153] The number of the openings 516 is not limited in the embodiments of the present application, and can be selected according to the number of the pins of the inner conductor 52. For example, the number of the pins of the inner conductor 52 can also be 1, 2, 3, 4, 5, 6, 8 or more, and the number of the openings 516 can also be 1, 2, 3, 4, 5, 6, 8 or more.

[0154] Referring to FIGS. 7C-8C, the inner conductor 52 further includes a plurality of inner conductor connectors 523, and the outer conductor 51 further includes a plurality of outer conductor connectors 517.

[0155] Specifically, as shown in FIGS. 7C and 8A, the inner conductor 52 has five inner conductor connectors 523, and the outer conductor 51 has five pairs of corresponding outer conductor connectors 517. Each pair of outer conductor connectors 517 is arranged on the first side wall 511 and the second side wall 512 (not shown in the figures) of the outer conductor 51, and the two outer conductor connectors 517 correspond to each other along the second direction Y. Each inner conductor connector 523 has a pair of corresponding protrusions 5231, and each pair of protrusions 5231 is arranged on opposite sides of the corresponding inner conductor connector 523 along the second direction (indicated by the Y direction in FIG. 7C). Each pair of outer conductor connectors 517 includes two corresponding recesses 5171, and the two recesses 5171 are arranged on the first side wall 511 and the second side wall 512, respectively. Each pair of protrusions 5231 is arranged opposite to each pair of recesses 5171 along the third direction Z.

[0156] In addition, the first connecting wall 513 of the outer conductor 51 of the embodiments of the present application forms a reverse L-shaped outer wall of the cross section of the accommodating cavity 515 together with the first side wall 511, and the second connecting wall 514 forms an L-shaped outer wall of the cross section of the accommodating cavity 515 together with the second side wall 512. As shown in FIGS. 8B and 8C, the two protrusions 5231 in each pair of protrusions 5231 are spaced apart along the third direction Z and respectively downwardly face the recesses 5171 of the second side wall 512 and upwardly face the recesses 5171 of the first side wall 511, so that when the first connecting wall 513 and the second connecting wall 514 are spliced along the third direction Z to form the outer conductor 51 with a frame-shaped cross section, each pair of protrusions 5231 is inserted into the corresponding pair of recesses 5171 arranged on the first side wall 511 and the second side wall 512 along the third direction Z and is clamped with the corresponding pair of recesses 5171, so that the first connecting wall 513 of the outer conductor 51 is connected with the second side wall 512, the second connecting wall 514 is connected with the first side wall 511, and the outer walls of the accommodating cavity 515 are jointly formed.

[0157] The application does not limit the connection mode between the first side wall 511, the second side wall 512, the first connecting wall 513 and the second connecting wall 514. For example, the first side wall 511 and the first connecting wall 513 and the second side wall 512 and the second connecting wall 514 can be connected by welding.

[0158] In summary, the outer conductor 51 itself (i.e. the first side wall 511, the second side wall 512, the first connecting wall 513 and the second connecting wall 514 of the outer conductor 51) in the power division connector 50 of the second embodiment of the application forms a closed electromagnetic shielding structure surrounding the inner conductor 52 by 360°, thereby being able to replace the power divider in the form of a microstrip line printed on a printed circuit board to realize low-loss transmission of electrical signals and power division function in the base station 1.

[0159] Embodiment three

[0160] In the embodiment of the application, the difference from the first embodiment is that the outer conductor 61 of the embodiment of the application forms a U-shaped semi-closed electromagnetic shielding structure around the inner conductor 62, and the opening of the semi-closed electromagnetic shielding structure faces away from the circuit board 10. In addition, the rest of the structure of the power division connector 60 of the embodiment of the application is the same as that of the first embodiment, for example, the adsorbing connector 23 and the conductive connector 24 of the power division connector 20, the connecting pin 216 and the outer conductor connector 217 of the outer conductor 21, and the input port 221 and the output port 222 of the inner conductor 22, and the like, which will not be described here.

[0161] It can be understood that the number of the outer conductor 61 and the inner conductor 62 of the power division connector 60 of the embodiment of the application can include one or more, and the outer conductor 61 can form a non-closed or closed containing cavity.

[0162] The following is described by taking one outer conductor 61 and one corresponding inner conductor 62 (i.e. one channel) and air as the medium between the inner conductor 62 and the outer conductor 61 in the non-closed containing cavity formed by the outer conductor 61 as an example for convenience of description.

[0163] FIG. 9A shows a perspective view of the power division connector provided by the third embodiment of the application, and FIG. 9B shows a side view of the power division connector provided by the third embodiment of the application.

[0164] In the embodiment of the application, referring to FIGS. 9A and 9B, the power division connector 60 includes an outer conductor 61 and an inner conductor 62.

[0165] Specifically, as shown in FIGS. 9A and 9B, the outer conductor 61 comprises a first side wall 611 (also referred to as a left side wall), a second side wall 612 (also referred to as a right side wall), and a first connecting wall 613 (also referred to as a bottom wall) extending along a first direction (as shown by the X direction in FIGS. 9A and 9B). The first side wall 611, the second side wall 612, and the first connecting wall 613 jointly define a hollow rectangular cross-section accommodating cavity 614 extending along the first direction X and having both ends of the first direction X penetrating through. However, the specific structure of the accommodating cavity 614 is not limited in the embodiments of the present application, and the shape and volume of the accommodating cavity 614 are limited by the shape and height of the outer conductor 61. For example, the outer conductor 61 can also be a structure with a triangular, circular, or other polygonal cross-section, and the accommodating cavity 614 correspondingly has a triangular, circular, or other polygonal cross-section.

[0166] Exemplarily, as shown in FIG. 9B, along a second direction (as shown by the Y direction in FIG. 9B), the first side wall 611 and the second side wall 612 of the outer conductor 61 are spaced apart on opposite sides of the inner conductor 62, and along a third direction (as shown by the Z direction in FIG. 9B), the first connecting wall 613 of the outer conductor 61 is spaced apart from the inner conductor 62 and connected with the first side wall 611 and the second side wall 612 respectively, to form a hollow U-shaped structure. The semi-closed inverted U-shaped structure surrounds the inner conductor 62 by 270° and has an opening facing away from the circuit board 10, so that the inner conductor 62 is isolated from the first side wall 611, the second side wall 612, and the first connecting wall 613 of the outer conductor 61 by air, forming a semi-closed electromagnetic shielding structure.

[0167] Exemplarily, as shown in FIG. 9C, the first side wall 611, the second side wall 612, and the first connecting wall 613 of the outer conductor 61 of the embodiments of the present application are integrally formed. Moreover, the first side wall 611, the second side wall 612, and the first connecting wall 613 of the outer conductor 61 of the embodiments of the present application are made by mechanical bending. However, the preparation method of the outer conductor 61 is not limited in the embodiments of the present application, as long as it can form an electromagnetic shielding structure outside the inner conductor 62. For example, the outer conductor 61 of the embodiments of the present application can also be made by profile forming or sheet metal stamping, and the outer conductor 61 of the embodiments of the present application is made of a metal conductive material.

[0168] Continuing to refer to FIG. 9B, the inner conductor 62 is disposed in the hollow accommodating cavity 614 of the outer conductor 61. The inner conductor 62 extends along the first direction X, and the inner conductor 62 is spaced apart from the outer conductor 61, and the distance D1 between the inner conductor 62 and the first side wall 611 is equal to the distance D2 between the inner conductor 62 and the second side wall 612. Moreover, air is used as the medium between the inner conductor 62 and the outer conductor 61. Thus, the inner conductor 62 is independent of the outer conductor 61 and is accommodated in the hollow accommodating cavity 614 of the outer conductor 61, so that the outer conductor 61 and the inner conductor 62 together form a semi-enclosed air-like coaxial structure.

[0169] Exemplarily, the inner conductor 62 is a sheet-shaped metal piece, but the embodiments of the present application do not limit the shape and material of the inner conductor 62, as long as air is used as the medium between the inner conductor 62 and the outer conductor 61, and an air-like coaxial structure can be formed to transmit signal energy. For example, the inner conductor 62 can also be in other shapes such as a column, and the inner conductor 62 is made of a metal conductive material.

[0170] Referring to FIG. 10A in combination with FIGS. 9A and 9B, the inner conductor 62 has an input port 621 and a plurality of output ports 622. The first connecting wall 613 of the outer conductor 61 has a plurality of openings 615 corresponding to the input port 621 and the plurality of output ports 622 of the inner conductor 62.

[0171] Exemplarily, as shown in FIG. 10A, the inner conductor 62 has seven pins spaced apart along the first direction (as shown by the X direction in FIG. 10A). Among them, one pin serves as an input port 621 of the inner conductor 62, and the other six pins respectively serve as six output ports 622 of the inner conductor 62. In other words, the inner conductor 62 includes one input port 621 and six output ports 622, and the input port 621 and the six output ports 622 are spaced apart along the first direction X. The first connecting wall 613 of the outer conductor 61 has seven openings 615 corresponding to the seven pins (i.e., the input port 621 and the output ports 622) of the inner conductor 62. As shown in FIGS. 9A and 9B, the seven pins serving as the input port 621 and the output ports 622 of the inner conductor 62 respectively pass through the corresponding openings 615 along the third direction (as shown by the Z direction in FIGS. 9A and 9B) to protrude into the accommodating cavity 614 and electrically connect with the circuit board 10, so that the inner conductor 62 can be connected to the circuit board 10 of the base station 1.

[0172] The number of the openings 615 is not limited in the embodiments of the present application, and can be selected according to the number of the pins of the inner conductor 62. For example, the number of the pins of the inner conductor 62 can also be 1, 2, 3, 4, 5, 6, 8 or more, and the number of the openings 615 can also be 1, 2, 3, 4, 5, 6, 8 or more.

[0173] Referring to FIG. 10B in combination with FIG. 9C and FIG. 10A, the inner conductor 62 of the embodiments of the present application further comprises a plurality of inner conductor connecting pieces 623, and the outer conductor 61 further comprises a plurality of outer conductor connecting pieces 616.

[0174] Specifically, as shown in FIG. 9C and FIG. 10A, the inner conductor 62 has five inner conductor connecting pieces 623, and the outer conductor 61 has five pairs of corresponding outer conductor connecting pieces 616. Each pair of outer conductor connecting pieces 616 is arranged on the first side wall 611 and the second side wall 612 (not shown in the figure) of the outer conductor 61, and the two outer conductor connecting pieces 616 correspond to each other along the second direction Y. For example, each inner conductor connecting piece 623 has a pair of corresponding convex portions 6231, and each pair of convex portions 6231 is arranged on the opposite sides of the corresponding inner conductor connecting piece 623 along the second direction (indicated by the Y direction in FIG. 9C). Each pair of outer conductor connecting pieces 616 comprises two corresponding concave portions 6161, and the two concave portions 6161 are arranged on the first side wall 611 and the second side wall 612, respectively. Each pair of convex portions 6231 is arranged opposite to each pair of concave portions 6161 along the third direction Z.

[0175] In addition, the first connecting wall 613 of the embodiments of the present application is connected with the first side wall 611 and the second side wall 612 to form the outer conductor 61 with a U-shaped cross section. For example, each pair of convex portions 6231 is arranged spaced apart along the third direction Z and downwardly towards the corresponding pair of concave portions 6161, so that when the outer conductor 61 and the inner conductor 62 are connected along the third direction Z, the pair of convex portions 6231 of each inner conductor connecting piece 623 is inserted into the corresponding pair of concave portions 6161 along the third direction Z and is clamped with the corresponding pair of concave portions 6161, so that the outer conductor 61 and the inner conductor 62 are connected through the outer conductor connecting pieces 616 and the inner conductor connecting pieces 623.

[0176] In summary, the outer conductor of the power division connector of the embodiments of the present application surrounds the inner conductor and the circuit board to form a closed electromagnetic shielding structure (or a semi-closed electromagnetic shielding structure), and the inner conductor is arranged in the hollow accommodating cavity formed by the outer conductor, and the inner conductor is independent of the outer conductor, so that the inner conductor and the outer conductor use air as the medium to form an air-like coaxial structure, thereby enabling the power division connector of the embodiments of the present application to realize the power division function and have low feed loss and high isolation when connected with the circuit board of the communication device.

Claims

1. A power splitter connector, characterized by, The power divider connector comprises: an outer conductor having a hollow accommodating cavity; an inner conductor arranged in the accommodating cavity, the inner conductor and the outer conductor are spaced apart, and a gas is used as a medium between the inner conductor and the outer conductor; the inner conductor has an input port and one or more output ports, and the input port and the one or more output ports all extend out of the accommodating cavity, wherein the plurality of output ports are spaced apart.

2. The power splitter connector of claim 1, wherein, The gas comprises air.

3. The power splitter connector of claim 2, wherein, The outer conductor comprises: a first side wall extending along a first direction; a second side wall extending along the first direction, and the first side wall and the second side wall are spaced apart on opposite sides of the inner conductor along a second direction, and the first direction intersects the second direction; the inner conductor extends along the first direction, and the distance between the inner conductor and the first side wall along the second direction is equal to the distance between the inner conductor and the second side wall along the second direction.

4. The power splitter of claim 3, wherein, The outer conductor further comprises: a first connecting wall extending along the first direction and connected with the first side wall and the second side wall respectively, and the first connecting wall is spaced apart from the inner conductor along a third direction, and the first direction intersects the third direction, and the second direction intersects the third direction; wherein the first side wall, the second side wall and the first connecting wall jointly define the accommodating cavity, and the input port and the one or more output ports all pass through the first side wall to extend out of the accommodating cavity; or the input port and the one or more output ports all pass through the first connecting wall to extend out of the accommodating cavity.

5. The power splitter of claim 4, wherein, The first side wall, the second side wall and the first connecting wall are integrally formed.

6. The power splitter of claim 4, wherein, The outer conductor further comprises: a second connecting wall extending along the first direction and connected with the first side wall and the second side wall respectively, and the second connecting wall and the first connecting wall are spaced apart along the third direction; the first side wall, the second side wall, the first connecting wall and the second connecting wall jointly define the accommodating cavity, and the input port and the one or more output ports all pass through the second connecting wall to extend out of the accommodating cavity.

7. The power splitter of claim 6, wherein, The first connecting wall is integrally formed with the first side wall, and the second connecting wall is integrally formed with the second side wall.

8. The power splitter of any one of claims 1 to 7, wherein, The input port and the one or more output ports are all made of elastic material.

9. The power splitter of any one of claims 1 to 8, wherein, The power divider connector further comprises an inner conductor connecting piece connected with the inner conductor and connected with the outer conductor.

10. The power splitter of claim 9, wherein, The outer conductor further comprises an outer conductor connecting piece arranged on the first side wall and the second side wall respectively, and the outer conductor connecting piece has a recess; the inner conductor connecting piece has a protrusion arranged opposite to the recess, and the protrusion and the recess are clamped along a third direction.

11. The power splitter of claim 9 or 10, wherein, The inner conductor connecting piece is integrally injection molded with the inner conductor by using plastic material.

12. The power splitter of any one of claims 1 to 11, wherein, The outer conductor further comprises a connecting pin extending along a third direction, which is used for connecting with an external circuit board, so that the outer conductor is connected to the circuit board.

13. The power splitter of any one of claims 1 to 12, wherein, The number of the outer conductors comprises a plurality, and the plurality of inner conductors correspond to the plurality of outer conductors one by one. The power division connector further comprises a conductive connecting piece, which connects two adjacent outer conductors in the second direction.

14. The power splitter of claim 13, wherein, The power division connector further comprises an adsorptive connecting piece with a flat surface, which simultaneously connects the first connecting walls of a plurality of outer conductors.

15. A communication device, characterized by The power division connector comprises: The power division connector according to any one of claims 1 to 14; A circuit board, to which the outer conductors of the power division connector are connected, and to which the output port and the input port of the inner conductors of the power division connector are respectively electrically connected; An antenna, which is connected to the circuit board and is electrically connected to the output port of the inner conductors through the circuit board.

Images