CN116995411A

CN116995411A - Antenna, communication equipment and base station

Info

Publication number: CN116995411A
Application number: CN202210453768.9A
Authority: CN
Inventors: 覃雯斐; 罗兵; 谢二堂
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2023-11-03
Also published as: WO2023207343A1

Abstract

The application provides an antenna, communication equipment and a base station. The antenna includes a reflecting plate, a radiating member, and a feeding member. The radiation component comprises a first installation part and a first substrate, wherein the first installation part is arranged on the reflecting plate, the first substrate is arranged on the first installation part, and the first substrate is provided with a radiator. The feeding part is detachably connected with the radiating part. The feed member is provided with a feed coupling circuit. The feed coupling circuit is used for coupling feed to the radiating component. The detachable connection between the radiating member and the feeding member can simplify the structure of the antenna, thereby improving the assembly efficiency. And moreover, the radiating component and the feed component do not need to be electrically connected through welding, so that the radiating component can be made of more materials, and the manufacturing cost of the antenna is reduced.

Description

Antenna, communication equipment and base station

Technical Field

The present application relates to the field of communications technologies, and in particular, to an antenna, a communications device, and a base station.

Background

Dipole antennas are radiators evolved from parallel two-wire transmission lines and are widely used in base stations because of their good broadband radiation characteristics. Along with the increasing communication requirements of the base station, in order to meet the requirements of broadband, dual polarization and the like of the antennas and reduce interference between the antennas, the antenna unit of the base station can select dual polarized dipole antennas.

Generally, dual polarized dipole antennas include cables and circuit boards. Specifically, the circuit board is provided with two pairs of polarized radiation arms, and the two pairs of polarized radiation arms are staggered. The cable is provided with a feed circuit for feeding the polarized radiation arm. In manufacturing the antenna, it is necessary to connect a cable to a circuit board. However, since the connection of the cable to the circuit board directly affects the performance of the antenna, the accuracy of the connection process is required to be high, which results in high manufacturing cost and low assembly efficiency of the antenna.

Disclosure of Invention

The application provides an antenna, communication equipment and a base station, which are used for realizing detachable connection between a radiation component and a feed component, so that the structure of the antenna is simplified, the manufacturing cost is reduced, and the assembly efficiency is improved.

In a first aspect, the present application provides an antenna. The antenna includes a reflecting plate, a radiating member, and a feeding member. The radiation member includes a first mounting portion provided to the reflection plate, and a first substrate provided to the first mounting portion. The first substrate is provided with a radiator. The feed member is provided with a feed coupling circuit. The feed coupling circuit is used for coupling feed to the radiating component. The feeding part is detachably connected with the radiating part.

In the embodiment of the application, the radiating component and the feeding component are fed in a coupling feeding mode, and the radiating body and the feeding coupling circuit are not required to be directly connected, so that the radiating component and the feeding component can be completely separated, and the structure of the antenna is simplified. The radiation component can be an independent component due to the coupling feed mode and can be manufactured independently; in addition, when the antenna is assembled, the radiating component and the feed component are not required to be electrically connected through welding, so that high-temperature resistance, multilayer conductors, weldability and other high requirements are not required for manufacturing the radiating component, more materials can be adopted for manufacturing, and the manufacturing cost of the antenna can be reduced. In addition, the feeding member is only used for feeding the radiator, and has no radiation function in the operating frequency band, so that the size of the feeding member can be reduced.

The feed coupling circuit may be a transverse electromagnetic (Transverse Electromagnetic Wave, TEM) transmission mode circuit. The transverse electromagnetic wave transmission mode circuit comprises a signal terminal and a grounding terminal. The signal terminal and the ground terminal can be electrically connected with the radiation member, respectively, without being welded together, so that coupling feeding can be realized. Specifically, the transverse electromagnetic wave transmission mode circuit may be a coaxial cable, a microstrip line, a strip line, a coplanar waveguide, a balun, a parallel double wire, or the like, and is not particularly limited herein.

The detachable connection can comprise a threaded connection mode, a clamping connection mode or a riveting connection mode. For example, in a specific embodiment, the radiation member may be provided with a mounting hole penetrating the first mounting portion and the first substrate. The feeding member includes a second mounting portion. When the antenna is assembled, the second mounting part can pass through the mounting hole and is connected with the reflecting plate, so that the assembly step of the antenna can be simplified, and the assembly efficiency is improved.

For fixing the feeding part, the second mounting portion may be provided with a first clamping portion, and the first mounting portion may be provided with a first limiting portion. When the first clamping part is clamped with the first limiting part, the second mounting part can be limited in the mounting hole, so that the feeding component is limited in the mounting position of the radiating component.

When the coupling feed is specifically set, the first substrate may further be provided with a first coupling circuit, and the first coupling circuit is electrically connected with the radiator. The power feeding part further comprises a second substrate arranged on the second mounting part. The feed coupling circuit may include a feed circuit and a second coupling circuit. The second coupling circuit is arranged on the second substrate and corresponds to the first coupling circuit. The second coupling circuit couples the feed to the first coupling circuit. The feed circuit is arranged at the second mounting part and is connected with the second coupling circuit. Therefore, when the antenna is assembled, the second mounting portion can be directly inserted into the mounting hole of the radiation member while the second substrate is held on the side of the first substrate away from the reflection plate. In the direction perpendicular to the reflection plate, the first coupling circuit and the second coupling circuit may be disposed at a distance from each other, thereby realizing coupling feeding.

In the technical scheme of the application, the antenna can be a dipole antenna, a loop antenna or a slot antenna and the like. For example, in a specific embodiment, the antenna is a dipole antenna. The radiator may comprise at least one pair of dipole radiating arms. That is, the antenna may be a single dipole antenna or a double dipole antenna. Specifically, the first coupling circuit includes a radiation coupling region provided corresponding to each dipole radiation arm. The second coupling circuit comprises feed coupling areas which are arranged in one-to-one correspondence with the radiation coupling areas. The feed coupling region is electrically connected with the feed circuit.

In a specific technical scheme, the second coupling circuit and the feed circuit can be in an integrated structure, so that the second coupling circuit and the feed circuit can be manufactured together, and the manufacturing steps are simplified. Of course, the second coupling circuit and the feeding circuit may be electrically connected in other manners. For example, in another specific embodiment, each of the feed-coupling regions may be electrically connected to the feed circuit by a solder joint.

The antenna may be a polarized antenna. For example, the radiator may comprise two pairs of dipole radiating arms, the angle between the two pairs of dipole radiating arms being 90 degrees, i.e. the antenna is a dual polarized dipole antenna. The first coupling circuit comprises four radiation coupling areas which are arranged in one-to-one correspondence with each dipole radiation arm, namely a first radiation coupling area, a second radiation coupling area, a third radiation coupling area and a fourth radiation coupling area. The second coupling circuit includes four feed coupling regions, namely a first feed coupling region, a second feed coupling region, a third feed coupling region, and a fourth feed coupling region. The feed circuit includes a first feed circuit and a second feed circuit disposed at the second mounting portion. The first feed circuit comprises a first signal end and a first grounding end, and the second feed circuit comprises a second signal end and a second grounding end. Specifically, the first feed coupling region is disposed corresponding to the first radiation coupling region and is connected to the first signal terminal. The second feed coupling region is arranged corresponding to the second radiation coupling region and is connected with the first grounding end. The third feed coupling region is arranged corresponding to the third radiation coupling region and is connected with the second signal end. The fourth feed coupling region is arranged corresponding to the fourth radiation coupling region and is connected with the second grounding end. Thus, each feed coupling region is connected with a corresponding signal terminal or ground terminal, thereby forming a feed microstrip line.

Of course, the feed coupling circuit may be a feed balun in addition to the feed microstrip line. Specifically, the radiator may include two pairs of dipole radiating arms, and an included angle between the two pairs of dipole radiating arms is 90 degrees. The first coupling circuit comprises four radiation coupling areas which are arranged in one-to-one correspondence with each dipole radiation arm, namely a fifth radiation coupling area, a sixth radiation coupling area, a seventh radiation coupling area and an eighth radiation coupling area. The second coupling circuit includes four feed coupling regions, namely a fifth feed coupling region, a sixth feed coupling region, a seventh feed coupling region, and an eighth feed coupling region. The feed circuit includes a third feed circuit and a fourth feed circuit. The second mounting portion includes a first mounting substrate and a second mounting substrate that are vertically disposed. The third feed circuit is arranged on the first mounting substrate, and the fourth feed circuit is arranged on the second mounting substrate. The third feed circuit includes a third balun and a third ground, and the fourth feed circuit includes a fourth balun and a fourth ground. The fifth feed coupling region and the fifth radiation coupling region are correspondingly arranged, the sixth feed coupling region and the sixth radiation coupling region are correspondingly arranged, the fifth feed coupling region and the sixth feed coupling region are respectively connected with a third grounding end, and the third balun couples and feeds the fifth feed coupling region and the sixth feed coupling region. The seventh feed coupling region is arranged corresponding to the seventh radiation coupling region, the eighth feed coupling region is arranged corresponding to the eighth radiation coupling region, the seventh feed coupling region and the eighth feed coupling region are respectively connected with the fourth grounding end, and the fourth balun couples feed to the seventh feed coupling region and the eighth feed coupling region. Thus, each feed coupling region is connected to a corresponding ground terminal, and the balun couples the feed to the feed coupling region, thereby forming a feed balun.

In the application, the material of the first substrate can be selected more because the manufacture of the radiation component does not require high temperature resistance of the material, multi-layer conductors, solderability and the like. For example, in some embodiments, the first substrate may be a foam substrate, and the first coupling circuit may be a flexible circuit board. Alternatively, in other embodiments, the first substrate may be a plastic substrate, and the first coupling circuit may be an electroplating circuit. Alternatively, in other embodiments, the first substrate may be a rigid circuit board. That is, depending on the material of the first substrate, different processes may be selected to manufacture the first substrate, for example, a circuit board process, a sheet metal process, a die casting process, or a plastic plating process may be used. Further, the first mounting portion may be a foamed substrate or a plastic substrate. Thus, the first base plate and the second mounting part can be made of materials with lighter weight and lower cost, so that the manufacturing cost of the radiation component is reduced, and the weight of the radiation component can be reduced.

In the present application, the material of the feeding member is not particularly limited. For example, in some embodiments, the second substrate may be a foam substrate, and the second coupling circuit may be a flexible circuit board. Alternatively, in other technical solutions, the second substrate may be a plastic substrate, and the second coupling circuit may be an electroplating circuit, so that the second substrate and the second coupling circuit may be integrally formed by plastic electroplating. Alternatively, in other embodiments, the second substrate may be a rigid circuit board. Alternatively, in other embodiments, the second substrate may be a sheet metal part. Similarly, in some embodiments, the second mounting portion may be a foam substrate and the power supply circuit may be a flexible circuit board. Alternatively, in other embodiments, the second mounting portion may be a plastic substrate, and the power supply circuit may be an electroplating circuit. Alternatively, in other embodiments, the second mounting portion may be a rigid circuit board. Alternatively, in other embodiments, the second mounting portion may be a sheet metal part.

In the present application, the shape of the second coupling circuit is not particularly limited, and may be, for example, T-shaped, Y-shaped, linear, V-shaped, U-shaped, L-shaped, or the like.

The power feeding member may be fixed to the reflection plate. For example, the second mounting portion may be coupled to the reflection plate by welding, or the second mounting portion may be engaged with the reflection plate. In a specific technical solution, the second mounting portion may be provided with a second clamping portion. The reflection plate may be provided with a second limiting portion provided with an elastic contact. The second clamping part is clamped with the second limiting part, so that the feed circuit can be contacted with the elastic contact piece and electrically connected with the elastic contact piece. This both limits the feed element to the reflector plate and communicates the reflector plate with the feed coupling circuit. Of course, in the present application, the power feeding member may not be fixed to the reflection plate. For example, in another embodiment, a ground substrate is provided on a side of the reflecting plate facing away from the power feeding member. The reflection plate is provided with a through hole, and the second mounting portion of the feeding member may pass through the through hole and be connected with the ground substrate.

In the above embodiments, in other technical solutions, the antenna may include a plurality of feeding components and a plurality of radiating components, where the plurality of feeding components are disposed in one-to-one correspondence with the plurality of radiating components. Each feeding element and the corresponding radiating element may form an antenna element. That is, the antenna of the present application may include a plurality of antenna elements. The first mounting portions of the radiating members may be of unitary construction. In other words, the first mounting portions may be manufactured by an integral molding process, so that the manufacturing process of the antenna may be simplified.

When the radiation device is specifically arranged, the plurality of radiation components can be distributed in an array or can also be distributed in a round shape, a triangular shape or other irregular patterns, and the radiation device can be specifically designed according to an application scene and a circuit of the reflecting plate.

In the present application, the reflecting plate and the radiation member may be integrally formed. That is, the reflecting plate may be selected from the same material as the radiation member, such as a foaming material or plastic, and the reflecting plate and the radiation member are simultaneously manufactured through an integral molding process. In addition, the first substrate and the first mounting portion may be integrally formed by an integral molding process.

The antenna may be a polarized antenna, specifically, may be a monopole antenna, a dual polarized antenna, or a circularly polarized antenna, and the present application is not limited in particular.

When the second mounting portion of the power feeding member and the second substrate are made of different materials from the first substrate of the radiation member, the first substrate may be an elastic substrate in order to avoid deformation due to the difference in expansion coefficient. When the radiation component and the power feeding component are assembled, the power feeding component can apply certain pressure to the first substrate, so that the first substrate generates certain elastic compression deformation. Thus, even if the feeding part and the radiating part are deformed differently due to external temperature, the elastic compression deformation can ensure a set distance between the first coupling circuit and the second coupling circuit so as to avoid overlarge distance, thereby maintaining better coupling feeding.

In a second aspect, the present application provides a communication device. The communication device comprises an antenna of the first aspect. In the embodiment of the application, the radiating part and the feeding part of the antenna are fed in a coupling feeding mode, and the radiating body and the feeding coupling circuit are not required to be directly connected, so that the radiating part and the feeding part can be completely separated, the structure of the antenna is simplified, and the miniaturization of communication equipment is facilitated. In addition, when the antenna is assembled, the radiating component and the feed component are not required to be electrically connected through welding, so that high-temperature resistance, multilayer conductors, weldability and the like are not required to be required for manufacturing materials of the radiating component, more materials can be adopted for manufacturing, and the manufacturing cost is reduced.

In a third aspect, the present application provides a base station. The base station comprises a mounting frame and the communication device of the second aspect, the communication device being mounted to the mounting frame. The communication equipment of the base station can be miniaturized and is suitable for various application scenes. And the antenna of the communication equipment is low in manufacturing cost, so that the cost of the base station can be greatly reduced.

Drawings

FIG. 1 is a schematic diagram of an antenna according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an assembly of the radiating element and the feed element of FIG. 1;

FIG. 3 is a schematic view of the radiating element of FIG. 1;

FIG. 4 is a schematic diagram of the feed block of FIG. 1;

FIG. 5 is a schematic diagram of another structure of an antenna according to an embodiment of the present application;

FIG. 6 is a schematic diagram of another structure of an antenna according to an embodiment of the present application;

FIG. 7 is a schematic diagram of an assembly of the radiating element and the feed element of FIG. 6;

FIG. 8 is a schematic view of the radiating element of FIG. 6;

FIG. 9 is a schematic diagram of the feed block of FIG. 6;

FIG. 10 is a schematic view of a configuration of the feed block of FIG. 4;

FIG. 11 is a schematic view of another configuration of the feed block of FIG. 4;

FIG. 12 is a schematic diagram of another structure of an antenna according to an embodiment of the present application;

FIG. 13 is a schematic view of an assembly of the radiating element and the feed element of FIG. 12;

FIG. 14 is a schematic view of the radiating element of FIG. 12;

FIG. 15 is a schematic view of the structure of the feed block of FIG. 12;

FIG. 16 is a schematic view of another configuration of the feed block of FIG. 15;

FIG. 17 is a schematic view of another configuration of the feed block of FIG. 15;

FIG. 18 is a schematic diagram of another embodiment of an antenna;

FIG. 19 is a schematic view of the radiating element of FIG. 18;

FIG. 20 is a schematic view of the assembly of the solder joints of the feed element of the present application;

Fig. 21 is a schematic structural diagram of a base station according to an embodiment of the present application.

Reference numerals:

10-antennas; 11-reflecting plates;

12-a radiation member; 13-a feeding part;

121-a first mounting portion; 122-a first substrate;

123-a radiator; 124-mounting holes;

125-a first coupling circuit; 131-a second mounting portion;

132-a second substrate; 133-a feed circuit;

134-a second coupling circuit; 135-welding points;

200-assembling a tray; 210-base station;

211-mounting rack; 212-a communication device;

131 a-a first mounting substrate; 131 b-a second mounting substrate;

133 a-a first signal terminal; 133 b-a second signal terminal;

133 c-a first ground; 133 d-a second ground;

133 e-a third balun; 133 f-a third ground;

1211-a first stop; 1311-second clamping portion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in another embodiment," "in some embodiments," "in other embodiments," and the like in various places throughout this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include, for example, "one or more" such forms of expression, unless the context clearly indicates to the contrary.

Fig. 1 is a schematic structural view of an antenna according to an embodiment of the present application, and fig. 2 is an assembled schematic view of a radiating element and a feeding element in fig. 1. As shown in fig. 1 and 2, the antenna 10 includes a reflection plate 11, a radiation member 12, and a feeding member 13, wherein the radiation member 12 and the feeding member 13 are provided to the reflection plate 11. Fig. 3 is a schematic structural view of the radiation member of fig. 1. As shown in fig. 3, the radiation member 12 includes a first mounting portion 121 and a first substrate 122, and the first substrate 122 is provided to the first mounting portion 121. The first substrate 122 is provided with a radiator 123. Fig. 4 is a schematic diagram of the structure of the feed member in fig. 1. As shown in fig. 4, the feeding part 13 is detachably connected with the radiating part 12. The feeding section 13 is provided with a feeding coupling circuit. The feed coupling circuit is used to couple a feed to the radiating element 12.

In the embodiment of the present application, the radiating part 12 and the feeding part 13 are fed in a coupling feeding manner, and the radiator 123 and the feeding coupling circuit do not need to be directly connected, so that the radiating part 12 and the feeding part 13 can be completely separated, and the structure of the antenna 10 is simplified. The radiation element 12 can be a separate element and can be manufactured separately due to the coupling feeding; in addition, since the electrical connection between the radiation member 12 and the power feeding member 13 is not required to be performed by soldering when the antenna 10 is assembled, the material for manufacturing the radiation member 12 does not require high temperature resistance, a multilayer conductor, soldering, and the like, and thus, a larger number of materials can be used, and the manufacturing cost of the antenna 10 can be reduced. In addition, the power feeding part 13 is only used to feed the radiator 123, and there is no radiation function in the operating frequency band, so the size of the power feeding part 13 can be reduced.

In the present application, the feed coupling circuit may be a transverse electromagnetic (Transverse Electromagnetic Wave, TEM) transmission mode circuit. The transverse electromagnetic wave transmission mode circuit comprises a signal terminal and a grounding terminal. The signal terminal and the ground terminal can be electrically connected to the radiation member 12, respectively, without being soldered together, so that coupling feeding can be realized. Specifically, the transverse electromagnetic wave transmission mode circuit may be a coaxial cable, a microstrip line, a strip line, a coplanar waveguide, a balun, a parallel double wire, or the like, and is not particularly limited herein.

The term "detachable connection" refers to a connection mode such as threaded connection, clamping connection or riveting connection. In the embodiment of the present application, the detachable connection between the radiating part 12 and the feeding part 13 does not cause a circuit influence or a structural change to the radiator 123 or the feeding coupling circuit, and thus, the radiating part 12 and the feeding part 13 can be independent parts, respectively, after the antenna 10 is detached.

With continued reference to fig. 3, in some embodiments of the application, the radiating member 12 is provided with mounting holes 124. The mounting hole 124 penetrates the first mounting portion 121 and the first substrate 122. When the antenna 10 is assembled, the feeding member 13 includes the second mounting portion 131. The second mounting portion 131 may be received in the mounting hole 124 and pass through the mounting hole 124. The connection mode of clamping is selected, so that the assembly steps of the antenna 10 can be simplified, and the assembly efficiency of the antenna 10 can be improved. In this embodiment, the second mounting portion 131 may be connected to the reflection plate 11, for example, by welding, clamping, or caulking, so that the connection of the power feeding part 13 and the reflection plate 11 is achieved. Of course, in other embodiments, the second mounting portion 131 may not be fixedly connected to the reflective plate 11. For example, in one embodiment, the side of the reflecting plate 11 facing away from the feeding part 13 is provided with a ground substrate. The reflection plate 11 is provided with a through hole through which the second mounting portion 131 of the power feeding part 13 may pass and be connected with a ground substrate, wherein the power feeding circuit 133 is electrically connected with the ground substrate. In the present application, the connection relation and connection manner of the power feeding member 13 and the reflection plate 11 are not particularly limited.

In the above-described embodiment, in order to maintain the engagement of the radiation member 12 with the power feeding member 13, the second mounting portion 131 may be provided with a first engagement portion (not shown in the drawings), and the first mounting portion 121 may be provided with a first stopper portion 1211. When the first clamping portion is clamped with the first limiting portion 1211, the second mounting portion 131 may be limited to the mounting hole 124, thereby locking the mounting position of the feeding part 13 on the radiating part 12. In this embodiment, the first engaging portion may be a protrusion on the surface of the second mounting portion 131, and the first limiting portion 1211 may be a groove on the inner wall of the mounting hole 124. The groove can limit and lock the bulge in the groove, so that the limiting function is realized. Of course, in other embodiments, the first engaging portion may be a groove on the surface of the second mounting portion 131, and the first limiting portion 1211 may be a protrusion on the inner wall of the mounting hole 124, which may also implement a limiting function. Alternatively, in other embodiments, the first clamping portion and the first limiting portion 1211 may each be a protrusion. In this embodiment, when the second mounting portion 131 passes through the mounting hole 124, after the first clamping portion passes over the first limiting portion 1211, the second mounting portion 131 cannot be separated from the mounting hole 124 without a large external force, so that the limiting function can also be achieved. The protrusions may also be elastic protrusions in order to facilitate the detachment of the feeding part 13 from the radiating part 12. In addition, when the first clamping portion is convex, the first clamping portion and the second mounting portion 131 may be made of materials having similar or identical expansion coefficients, so that when the external temperature of the power feeding part 13 is changed, the first clamping portion may be similarly deformed with the second mounting portion 131, and thus, it is possible to avoid limit failure between the first clamping portion and the first limit portion 1211 due to a shape mutation of any one of the first clamping portion and the second mounting portion 131. In order to reduce the manufacturing cost, the first clamping portion may be integrally formed with the second mounting portion 131, that is, the first clamping portion may be a part of the second mounting portion 131. When the first limiting portion 1211 is a protrusion, it may be similarly disposed, and will not be described herein.

Please continue to refer to fig. 3 and 4. In a specific embodiment, the first substrate 122 may also be provided with a first coupling circuit 125. The radiator 123 is electrically connected to the first coupling circuit 125. The power feeding part 13 may further include a second substrate 132, and the second substrate 132 is mounted to the second mounting part 131. The feed coupling circuit includes a feed circuit 133 provided to the second mounting portion 131, and a second coupling circuit 134 provided to the second substrate 132. The feed circuit 133 is connected to the second coupling circuit 134. The second coupling circuit 134 is disposed corresponding to the first coupling circuit 125, and is configured to couple a feed to the first coupling circuit 125. In this embodiment, the reflection plate 11 is fed to the second coupling circuit 134 through the feeding circuit 133, and the second coupling circuit 134 is coupled to feed to the first coupling circuit 125 after being energized, thereby achieving feeding to the radiator 123 and further radiating electromagnetic waves to the space through the radiator 123. In this embodiment, after the feeding part 13 and the radiating part 12 are assembled, the second substrate 132 is positioned at a side of the first substrate 122 remote from the reflecting plate 11, as shown in fig. 1. The radiator 123 and the first coupling circuit 125 are disposed on a side surface of the first substrate 122 away from the reflecting plate 11, and the second coupling circuit 134 is disposed on a side surface of the second substrate 132 away from the reflecting plate 11, so that the first coupling circuit 125 and the second coupling circuit 134 are disposed at intervals in a direction perpendicular to the reflecting plate 11, without welding, thereby reducing the assembly requirement of the antenna 10.

In the case of providing the feeding coupling circuit specifically, the specific shape of the second coupling circuit 134 is not limited, and may be T-shaped, Y-shaped, V-shaped, U-shaped, L-shaped, or in-line.

Since the antenna 10 can be disassembled into two independent parts of the radiating part 12 and the feeding part 13, the radiating part 12 and the feeding part 13 can be manufactured by different manufacturing processes using different materials. When the first substrate 122 and the second substrate 132 are made of different materials, the coefficients of thermal expansion are different.

In the present application, the material of the first substrate 122 may be selected more because the manufacturing of the radiation member 12 does not require high temperature resistance of the material, multi-layered conductors, solderability, etc. For example, in some embodiments, the first substrate 122 may be a foam substrate, and the first coupling circuit 125 may be a flexible circuit board. Alternatively, in other embodiments, the first substrate 122 may be a plastic substrate, and the first coupling circuit 125 may be an electroplating circuit. Alternatively, in other embodiments, the first substrate 122 may be a rigid circuit board. That is, depending on the material of the first substrate 122, different processes may be selected to manufacture the first substrate 122, for example, a circuit board process, a sheet metal process, a die casting process, or a plastic plating process may be used. In this way, the first substrate 122 may be selected from a lighter weight and lower cost material, thereby reducing the cost of manufacturing the radiating member 12, while also reducing the weight of the radiating member 12.

In addition, the first mounting portion 121 is mainly used to support the radiation member 12 and is fixed to the reflection plate 11. Accordingly, the first mounting portion 121 may be selected from a foaming material, plastic, or the like. In other embodiments of the present application, the radiation member 12 may also be integrally formed with the reflection plate 11. That is, the reflecting plate 11, the first mounting part 121 and the first substrate 122 may be made of the same material, such as a foaming material or plastic, and manufactured through an integral molding process, which may simplify the manufacturing steps of the antenna 10 and reduce the manufacturing cost of the antenna 10. The first substrate 122 and the first mounting portion 121 may be integrally formed by an integral molding process.

In the present application, the material of the feeding member 13 is not particularly limited. For example, in some embodiments, the second substrate 132 may be a foam substrate and the second coupling circuit 134 may be a flexible circuit board. Alternatively, in other embodiments, the second substrate 132 may be a plastic substrate, and the second coupling circuit 134 may be an electroplating circuit, so that the second substrate 132 and the second coupling circuit 134 may be integrally formed by plastic electroplating. Alternatively, in other embodiments, the second substrate 132 may be a rigid circuit board. Alternatively, in other embodiments, the second substrate 132 may be a sheet metal part.

Of course, the second mounting portion 131 may be similarly provided. For example, in some embodiments, the second mounting portion 131 may be a foam substrate and the feed circuit 133 may be a flexible circuit board. Alternatively, in other embodiments, the second mounting portion 131 may be a plastic substrate and the feeding circuit 133 may be a plating circuit. Alternatively, in other embodiments, the second mounting portion 131 may be a rigid circuit board. Alternatively, in other embodiments, the second mounting portion 131 may also be a sheet metal part. In the present application, the second mounting portion 131 and the second substrate 132 may be made of the same material or may be made of different materials. In this way, the second substrate 132 and the second mounting portion 131 can be made of materials having a relatively light weight and a relatively low cost, respectively, so that the manufacturing cost of the power feeding member 13 can be reduced, and the weight of the power feeding member 13 can be reduced.

Fig. 5 is a schematic diagram of another structure of an antenna according to an embodiment of the application. As shown in fig. 5, the first substrate 122 may be an elastic substrate. In this embodiment, the elasticity of the elastic substrate is determined by the material of the elastic substrate and the connection structure with the first mounting portion 121. For example, when the first substrate 122 is made of a foaming material, the foaming material itself has a certain elasticity, so the first substrate 122 is an elastic substrate. Of course, when other materials are used for the first substrate 122, elasticity is also possible. When the radiation member 12 and the power feeding member 13 are assembled, the power feeding member 13 applies a certain pressure to the first substrate 122, so that the first substrate 122 is elastically deformed in a compression manner. In this way, when the temperature outside the antenna 10 changes, even though the first substrate 122 and the second substrate 132 are differently deformed, since the first substrate 122 has a certain elastic compression deformation, the elastic compression deformation can ensure a set distance between the first coupling circuit 125 and the second coupling circuit 134 during the temperature change, so that a better coupling feed is maintained.

Fig. 6 is a schematic structural diagram of another antenna according to an embodiment of the present application, fig. 7 is a schematic structural diagram of the radiating element and the feeding element in fig. 6, fig. 8 is a schematic structural diagram of the radiating element in fig. 6, and fig. 9 is a schematic structural diagram of the feeding element in fig. 6. As shown in fig. 6 to 9, in one embodiment of the present application, the first substrate 122 may be a plastic substrate. The first coupling circuit 125 is a plating circuit, and the radiator 123 is a plating radiator. The first coupling circuit 125 and the radiator 123 are fabricated on the first substrate 122 through an electroplating process. The first substrate 122 has a supporting function, and can be directly fixed on the reflecting plate 11 without additional support for fixing. The second substrate 132 is a plastic substrate, and the second mounting portion 131 is a plastic plate. The feed coupling circuit may be a printed circuit, and is fabricated on the second substrate 132 and the second mounting part 131 through an electroplating process.

In addition, in order to further improve the coupling feeding between the first coupling circuit 125 and the second coupling circuit 134, the projection of the second coupling circuit 134 on the first substrate 122 may be at least partially overlapped with the first coupling circuit 125 in a direction perpendicular to the first substrate 122, so that a distance between the first coupling circuit 125 and the second coupling circuit 134 may be maintained to improve the efficiency of the coupling feeding.

In the above embodiment, the feeding circuit 133 may be electrically connected to the reflection plate 11. For example, in some embodiments, the second mounting part 131 may be connected to the reflection plate 11 by welding, and not only the second mounting part 131 and the reflection plate 11 may be structurally connected, but also the power feeding circuit 133 may be electrically connected to the reflection plate 11.

Of course, the second mounting portion 131 may be connected to the reflection plate 11 by other connection methods. Specifically, as shown in fig. 6 and 9, the second mounting portion 131 may be provided with a second clamping portion 1311, and the reflection plate 11 is provided with a second stopper portion (not shown). The second engaging portion 1311 may engage with the second positioning portion, and may position the second mounting portion 131 on the reflection plate 11, thereby locking the mounting position of the power feeding member 13 on the reflection plate 11. In this embodiment, the second clamping portion 1311 may be a protrusion on the surface of the second mounting portion 131, and the second limiting portion may be a groove on the surface of the reflective plate 11. The groove can limit and lock the bulge in the groove, so that the limiting function is realized. Of course, in other embodiments, the second clamping portion 1311 may be a groove on the surface of the second mounting portion 131, and the second limiting portion may be a protrusion on the surface of the reflecting plate 11, which may also implement the limiting function. The above-described protrusions may also be elastic protrusions in order to facilitate the detachment of the power feeding part 13 from the reflection plate 11. In addition, when the second clamping portion 1311 is a protrusion, the second clamping portion 1311 and the second mounting portion 131 may be made of a material having a similar or identical expansion coefficient, so that when the external temperature of the power feeding member 13 changes, the second clamping portion 1311 may be deformed similarly to the second mounting portion 131, and thus, it may be possible to avoid a limit failure between the second clamping portion 1311 and the second limit portion due to a shape mutation of any one of the second clamping portion 1311 and the second mounting portion 131. In order to reduce manufacturing costs, the second fastening portion 1311 may be integrally formed with the second mounting portion 131, that is, the second fastening portion 1311 may be a part of the second mounting portion 131. When the second limiting portion is a protrusion, the second limiting portion may be similarly disposed, and will not be described herein.

The second limiting portion may be provided with an elastic contact, and the elastic contact is electrically connected to the circuit of the reflective plate 11. In the embodiment of the present application, the elastic contact may be a spring, a spring piece, or other conductive elastic members, which are not described herein. The feed circuit 133 may have a connection terminal. The connection end may be provided at the second engagement portion 1311, or may be provided close to the second engagement portion 1311. When the second clamping portion 1311 is clamped to the second limiting portion, the connection end of the feeding circuit 133 may contact with the elastic member and be electrically connected, so that the feeding member 13 is limited to the reflective plate 11 and simultaneously communicates with the reflective plate 11 and the feeding circuit 133.

In the present application, the type of the antenna 10 may include a dipole antenna, a loop antenna, a slot antenna, or the like, without being particularly limited thereto. The antenna 10 may be a polarized antenna, specifically, a monopole antenna, a dual polarized antenna, a circular polarized antenna, or the like, and is not particularly limited herein.

As shown in fig. 2 and 7, the radiator 123 may include at least one pair of dipole radiating arms. That is, the antenna 10 may be a single dipole antenna, or may be a double dipole antenna. Specifically, the first coupling circuit 125 includes a radiation coupling region provided corresponding to each dipole radiation arm. The second coupling circuit 134 includes feeding coupling regions disposed in one-to-one correspondence with the radiation coupling regions. That is, each dipole radiating arm is provided with one radiating coupling area and one feeding coupling area, respectively. Each feed coupling region may be electrically connected to feed circuit 133 through at least one joint 135. In this embodiment, the antenna 10 is a dipole antenna, and each pair of dipole radiating arms is fed separately by a feed circuit 133.

The feed coupling circuit may be a microstrip line. With continued reference to fig. 1-4, in one particular embodiment, the radiator 123 may include two pairs of dipole radiating arms. The included angle between the two pairs of dipole radiating arms is 90 degrees. That is, the antenna 10 in this embodiment is a dual polarized dipole antenna. Specifically, the first coupling circuit 125 includes four radiation coupling regions, i.e., a first radiation coupling region, a second radiation coupling region, a third radiation coupling region, and a fourth radiation coupling region, which are disposed in one-to-one correspondence with each dipole radiation arm. Each dipole radiating arm is electrically connected to one of the radiating coupling areas. The second coupling circuit 134 includes four feed coupling regions, i.e., a first feed coupling region, a second feed coupling region, a third feed coupling region, and a fourth feed coupling region, disposed in one-to-one correspondence with the radiation coupling regions. Fig. 10 is a schematic view of a structure of the feeding section in fig. 4, and fig. 11 is a schematic view of another structure of the feeding section in fig. 4. As shown in fig. 10 and 11, the second mounting portion 131 is a circuit board, and the power supply circuit 133 includes a first power supply circuit and a second power supply circuit provided to the second mounting portion 131. The first feeding circuit includes a first signal terminal 133a and a first ground terminal 133c, and the second feeding circuit includes a second signal terminal 133b and a second ground terminal 133d. Specifically, the first feed coupling region is disposed corresponding to the first radiation coupling region and is connected to the first signal terminal 133 a. The second feed coupling region is disposed corresponding to the second radiation coupling region and is connected to the first ground terminal 133 c. The third feed coupling region is disposed corresponding to the third radiation coupling region and is connected to the second signal terminal 133 b. The fourth feed coupling region is disposed corresponding to the fourth radiation coupling region and is connected to the second ground terminal 133d. Thus, each feed coupling region is connected with a corresponding signal terminal or ground terminal, thereby forming a feed microstrip line.

The feed coupling circuit may be a feed balun. Fig. 12 is a schematic structural view of another antenna according to an embodiment of the present application, fig. 13 is a schematic structural view of the radiating element and the feeding element in fig. 12, fig. 14 is a schematic structural view of the radiating element in fig. 12, and fig. 15 is a schematic structural view of the feeding element in fig. 12. As shown in fig. 12 to 15, the radiator 123 includes two pairs of dipole radiating arms, and an included angle between the two pairs of dipole radiating arms is 90 degrees. That is, the antenna 10 in this embodiment is a dual polarized dipole antenna. Specifically, the first coupling circuit 125 includes four radiation coupling regions, i.e., a fifth radiation coupling region, a sixth radiation coupling region, a seventh radiation coupling region, and an eighth radiation coupling region, which are disposed in one-to-one correspondence with each dipole radiation arm. Each dipole radiating arm is electrically connected to one of the radiating coupling areas. Fig. 16 is a schematic view of another structure of the feeding section in fig. 15, and fig. 17 is a schematic view of another structure of the feeding section in fig. 15. As shown in fig. 16 and 17, the second coupling circuit 134 includes four feed coupling regions, i.e., a fifth feed coupling region, a sixth feed coupling region, a seventh feed coupling region, and an eighth feed coupling region, which are disposed in one-to-one correspondence with the radiation coupling regions. The second mounting portion 131 includes a first mounting substrate 131a and a second mounting substrate 131b that are vertically disposed. The power supply circuit 133 includes a third power supply circuit provided to the first mounting substrate 131a and a fourth power supply circuit provided to the second mounting substrate 131b. In this embodiment, the third feeding circuit includes a third balun 133e and a third ground terminal 133f, and the fourth feeding circuit includes a fourth balun (not shown) and a fourth ground terminal (not shown). The fifth feed coupling region is disposed corresponding to the fifth radiation coupling region, the sixth feed coupling region is disposed corresponding to the sixth radiation coupling region, the fifth feed coupling region and the sixth feed coupling region are respectively connected to the third ground terminal 133f, and the third balun 133e couples the feeds to the fifth feed coupling region and the sixth feed coupling region. The seventh feed coupling region is arranged corresponding to the seventh radiation coupling region, the eighth feed coupling region is arranged corresponding to the eighth radiation coupling region, the seventh feed coupling region and the eighth feed coupling region are respectively connected with the fourth grounding end, and the fourth balun couples feed to the seventh feed coupling region and the eighth feed coupling region. Thus, each of the feed coupling regions is connected to a corresponding ground terminal, and the third balun 133e and the fourth balun couple feed to the feed coupling regions, thereby forming feed balun.

In addition, in the above embodiment of the present application, the first clamping portion of the second mounting portion 131 may not only implement the limiting function with the first limiting portion 1211, but also be used to plug the connection end of the power supply circuit 133 into the reflection plate 11 and electrically communicate with it. Accordingly, the specific shape of the first clamping portion may be set according to the circuit arrangement of the power feeding circuit 133 and the reflection plate 11. For example, as shown in fig. 4 and 9, an end of the first clamping portion facing the reflective plate 11 may be in a straight shape; alternatively, as shown in fig. 15, one end of the first engaging portion facing the reflection plate 11 may be cross-shaped.

Fig. 18 is a schematic diagram of another structure of an antenna according to an embodiment of the present application, and fig. 19 is a schematic diagram of a radiation element in fig. 18. As shown in fig. 18 and 19, in some embodiments of the present application, the antenna 10 may include a plurality of feeding parts 13 and a plurality of radiating parts 12, wherein the plurality of feeding parts 13 are disposed in one-to-one correspondence with the plurality of radiating parts 12. In order to simplify the manufacturing process of the antenna 10, the first mounting portions 121 of the plurality of radiating members 12 may be integrally formed. That is, the first mounting portions 121 of the radiation members 12 may be manufactured by an integral molding process. In this embodiment, the feeding part 13 and the corresponding radiating part 12 constitute an antenna unit, that is, the antenna 10 may include a plurality of antenna units, and the distribution of the antenna units may be set according to actual needs. For example, as shown in fig. 18, the antenna elements may be distributed in an array. Of course, the antenna units may also be distributed in a circular, triangular or other irregular pattern, which is not described herein.

Fig. 20 is a schematic view of the assembly of the solder joints of the feed member of the present application. As shown in fig. 20, in the above embodiment, the plurality of power feeding parts 13 need to be assembled with a joint 135. Since the second substrate 132 is small in size, a plurality of power feeding parts 13 can be placed in the assembly tray 200 and the power feeding parts 13 are simultaneously soldered to be assembled, thereby improving assembly efficiency.

Based on the same technical idea, the present application also provides a communication device including the antenna 10 of any of the above embodiments. In the embodiment of the present application, the radiating part 12 and the feeding part 13 of the antenna 10 are fed in a coupling feeding manner, and the radiator 123 and the feeding coupling circuit are not required to be directly connected, so that the radiating part 12 and the feeding part 13 can be completely separated, the structure of the antenna 10 is simplified, and the miniaturization of communication equipment is facilitated. In addition, since the electrical connection between the radiating member 12 and the power feeding member 13 is not required to be performed by soldering when the antenna 10 is assembled, the radiating member 12 of the antenna 10 is not required to be made of a high-temperature resistant material, a multi-layer conductor, or a solderable material, and thus can be made of a larger variety of materials, thereby reducing the manufacturing cost of the antenna 10.

Based on the same technical conception, the application also provides a base station. Fig. 21 is a schematic structural diagram of a base station according to an embodiment of the present application. As shown in fig. 21, the base station 210 includes a mounting frame 211 and the communication device 212 of the above embodiment, and the communication device 212 is mounted to the mounting frame 211. The communication device 212 of the base station 210 can be miniaturized and is suitable for various application scenarios. In addition, the antenna 10 of the communication device 212 is manufactured at a low cost, and the manufacturing cost of the base station 210 can be reduced.

The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. An antenna comprising a reflecting plate, a radiating member, and a feeding member, wherein:

the radiation component comprises a first installation part and a first substrate, the first installation part is arranged on the reflecting plate, the first substrate is arranged on the first installation part, and the first substrate is provided with a radiator;

The feed component is detachably connected with the radiation component; the feeding part is provided with a feeding coupling circuit and is used for coupling feeding to the radiating part.

2. The antenna of claim 1, wherein the feed coupling circuit is a transverse electromagnetic wave transmission mode circuit comprising a coaxial cable, a microstrip line, a stripline, a coplanar waveguide, a balun, or a parallel twin wire.

3. An antenna according to claim 1 or 2, wherein the radiating member is provided with a mounting hole penetrating the first mounting portion and the first substrate; the feeding part includes a second mounting portion penetrating through the mounting hole and connected with the reflection plate.

4. The antenna of claim 3, wherein the second mounting portion is provided with a first clamping portion, the first mounting portion is provided with a first limiting portion, and the first clamping portion is clamped with the first limiting portion, so that the second mounting portion is limited in the mounting hole.

5. The antenna of claim 3 or 4, wherein the first substrate is further provided with a first coupling circuit, the first coupling circuit being electrically connected to the radiator;

The feed component further comprises a second substrate, and the second substrate is arranged on the second mounting part; the feed coupling circuit comprises a feed circuit and a second coupling circuit which is arranged corresponding to the first coupling circuit, and the second coupling circuit is arranged on the second substrate and is used for coupling feed to the first coupling circuit; the feed circuit is arranged at the second mounting part and is connected with the second coupling circuit.

6. The antenna of claim 5, wherein the radiator comprises at least one pair of dipole radiating arms; the first coupling circuit comprises radiation coupling areas which are arranged in one-to-one correspondence with each dipole radiation arm, and the second coupling circuit comprises feed coupling areas which are arranged in one-to-one correspondence with the radiation coupling areas, and the feed coupling areas are electrically connected with the feed circuit.

7. The antenna of claim 6, wherein the second coupling circuit is of unitary construction with the feed circuit; or each feed coupling area is electrically connected with the feed circuit through a welding point.

8. The antenna of claim 6 or 7, wherein the radiator comprises two pairs of dipole radiating arms, an included angle between the two pairs of dipole radiating arms is 90 degrees, and the first coupling circuit comprises a first radiation coupling area, a second radiation coupling area, a third radiation coupling area and a fourth radiation coupling area which are arranged in one-to-one correspondence with each dipole radiating arm;

The second coupling circuit comprises a first feed coupling region, a second feed coupling region, a third feed coupling region and a fourth feed coupling region; the feed circuit comprises a first feed circuit and a second feed circuit which are arranged on the second installation part; the first feed circuit comprises a first signal end and a first grounding end, and the second feed circuit comprises a second signal end and a second grounding end;

the first feed coupling region is arranged corresponding to the first radiation coupling region and is connected with the first signal end; the second feed coupling region is arranged corresponding to the second radiation coupling region and is connected with the first grounding end;

the third feed coupling region is arranged corresponding to the third radiation coupling region and is connected with the second signal end; the fourth feed coupling region is arranged corresponding to the fourth radiation coupling region and is connected with the second grounding end.

9. The antenna of claim 6 or 7, wherein the radiator comprises two pairs of dipole radiating arms, an included angle between the two pairs of dipole radiating arms is 90 degrees, and the first coupling circuit comprises a fifth radiation coupling area, a sixth radiation coupling area, a seventh radiation coupling area and an eighth radiation coupling area which are arranged in one-to-one correspondence with each dipole radiating arm;

The second coupling circuit comprises a fifth feed coupling region, a sixth feed coupling region, a seventh feed coupling region and an eighth feed coupling region; the power supply circuit comprises a third power supply circuit and a fourth power supply circuit, the second installation part comprises a first installation substrate and a second installation substrate which are vertically arranged, the third power supply circuit is arranged on the first installation substrate, and the fourth power supply circuit is arranged on the second installation substrate; the third feed circuit comprises a third balun and a third ground terminal, and the fourth feed circuit comprises a fourth balun and a fourth ground terminal;

the fifth feed coupling region and the fifth radiation coupling region are correspondingly arranged, the sixth feed coupling region and the sixth radiation coupling region are correspondingly arranged, and the fifth feed coupling region and the sixth feed coupling region are respectively connected with the third grounding end; the third balun couples feed to the fifth feed coupling region and the sixth feed coupling region;

the seventh feed coupling region is arranged corresponding to the seventh radiation coupling region, the eighth feed coupling region is arranged corresponding to the eighth radiation coupling region, and the seventh feed coupling region and the eighth feed coupling region are respectively connected with the fourth grounding end; the fourth balun couples feed to the seventh feed coupling region and the eighth feed coupling region.

10. The antenna according to any one of claims 5 to 9, wherein the first mounting portion is a foamed substrate or a plastic substrate;

the first substrate is a foaming substrate, and the first coupling circuit is a flexible circuit board; or the first substrate is a plastic substrate, and the first coupling circuit is an electroplating circuit; alternatively, the first substrate is a rigid circuit board.

11. The antenna according to any one of claims 5 to 10, wherein the second mounting portion is a foamed substrate, and the feed circuit is a flexible circuit board; or the second mounting part is a plastic substrate, and the feed circuit is an electroplating circuit; or, the second mounting part is a rigid circuit board; or, the second installation part is a sheet metal part;

the second substrate is a foaming substrate, and the second coupling circuit is a flexible circuit board; or the second substrate is a plastic substrate, and the second coupling circuit is an electroplating circuit; alternatively, the second substrate is a rigid circuit board; or, the second substrate is a sheet metal part.

12. The antenna of any one of claims 5 to 11, wherein the shape of the second coupling circuit comprises a T-shape, a Y-shape, a V-shape, a U-shape, an L-shape, or a straight shape.

13. The antenna according to any one of claims 1 to 12, characterized in that the antenna includes a plurality of feeding members and a plurality of radiating members, the plurality of feeding members being provided in one-to-one correspondence with the plurality of radiating members, the first mounting portions of the plurality of radiating members being of unitary structure.

14. The antenna of claim 13, wherein the plurality of radiating elements are distributed in an array.

15. The antenna of any one of claims 1 to 14, wherein the reflecting plate is of unitary construction with the radiating element; and/or

The first substrate and the first mounting part are of an integrated structure.

16. The antenna of any one of claims 1 to 15, wherein the antenna comprises a monopole antenna, a dual polarized antenna, or a circularly polarized antenna.

17. The antenna of any one of claims 1 to 16, wherein the first substrate is a flexible substrate.

18. A communication device comprising an antenna according to any of claims 1 to 17.

19. A base station comprising a mounting frame and the communications device of claim 18, the communications device being mounted to the mounting frame.