CN216055192U

CN216055192U - Antenna array and antenna array combination device

Info

Publication number: CN216055192U
Application number: CN202121980584.5U
Authority: CN
Inventors: 贺军平; 李刚; 孙夏夏
Original assignee: Hefei Yirui Communication Technology Co Ltd
Current assignee: Hefei Yirui Communication Technology Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-15
Anticipated expiration: 2031-08-20

Abstract

The utility model relates to the communication field, in particular to an antenna array and an antenna array combination device, wherein the antenna array comprises: the PCB adapter plate is provided with a first port connector at one end; the radio frequency connector and the power connector are positioned on the bearing surface of the PCB adapter plate; and one end of the antenna array module is provided with a second port connector, the antenna array module is fixedly connected with the PCB adapter plate, and the second port connector is electrically connected with the first port connector. The utility model is beneficial to solving the problem that the antenna array is not flexible in arrangement position.

Description

Antenna array and antenna array combination device

Technical Field

The present invention relates to the field of communications, and in particular, to an antenna array and an antenna array combination apparatus.

Background

With the development of 5G (5th Generation Mobile Communication Technology, fifth Generation Mobile Communication Technology), millimeter waves are widely used due to their advantages of large bandwidth, low latency, high speed, etc.

Because the millimeter wave frequency is higher, the wavelength is shorter, and the millimeter wave is easy to be shielded by an object in the transmission process to generate larger loss. Therefore, a millimeter wave antenna array needs to be adopted, and a beam with extremely strong directivity is generated through beam forming, so that millimeter waves are radiated towards a specific direction as much as possible, and the loss of the millimeter waves in the transmission process is reduced.

However, under the prior art, because the millimeter wave antenna array is an active device and has a relatively large volume, when a millimeter wave complete machine application scheme is designed, not only the millimeter wave antenna array needs to be powered, but also many factors such as radio frequency path loss and heat dissipation design need to be considered, and radiation indexes in all directions need to be considered, so that the placement position and the fixing mode of the millimeter wave antenna array need to be more flexible.

SUMMERY OF THE UTILITY MODEL

The utility model provides an antenna array and an antenna array combination device, which are at least beneficial to solving the problem that the arrangement positions of all parts in the antenna array are not flexible.

The present invention provides an antenna array comprising: the PCB adapter plate is provided with a first port connector at one end; the radio frequency connector and the power connector are positioned on the bearing surface of the PCB adapter plate; and one end of the antenna array module is provided with a second port connector, the antenna array module is fixedly connected with the PCB adapter plate, and the second port connector is electrically connected with the first port connector.

In addition, the PCB interposer has a first carrying surface and a second carrying surface opposite to each other, and the first port connector 101 is located on the first carrying surface.

In addition, the power connector is positioned on the first bearing surface.

In addition, the radio frequency connector is positioned on the first bearing surface.

In addition, the radio frequency connector and the power connector are respectively positioned on different bearing surfaces of the PCB adapter plate.

In addition, the radio frequency connector includes: the first radio frequency connector and the second radio frequency connector are arranged at intervals.

In addition, the first port connector has a pin header and the second port connector has a pin header, wherein the pin header is aligned with the pin header.

In addition, the first port connector and the second port connector are both board-to-board connectors.

The utility model also provides an antenna array combination device which comprises the antenna array.

In addition, still include: the radio frequency module is used for transmitting and receiving intermediate frequency signals; the radio frequency cable is arranged between the radio frequency connector and the radio frequency module; a circuit board; and the power supply connecting wire is arranged between the power supply connector and the circuit board and supplies power to the antenna array module.

The technical scheme provided by the utility model at least has the following advantages:

in the technical scheme of the antenna array provided by the utility model, one end of the PCB adapter plate is provided with a first port connector; the radio frequency connector and the power connector are positioned on the bearing surface of the PCB adapter plate and are used for connecting a radio frequency cable and the PCB adapter plate and providing a channel for an intermediate frequency signal; the antenna array module is provided with a second port connector at one end, the antenna array module is fixedly connected with the PCB adapter plate, and the second port connector is electrically connected with the first port connector, so that the adapter plate can transmit the intermediate frequency signal and the current to the second port connector through the first port connector through the radio frequency connector and the power connector, and the antenna array module can normally work. Meanwhile, the first port connector and the second port connector are respectively positioned at the ends of the PCB adapter plate and the antenna array module, so that the two bearing surfaces of the PCB adapter plate can be used for placing the decoration, namely the two bearing surfaces of the PCB adapter plate can be used for placing the power connector and the radio frequency connector, so that when the antenna array is connected with the radio frequency module, the power connector and the radio frequency connector can be placed on different bearing surfaces of the PCB adapter plate, and the placing positions of other decoration are more flexible.

Drawings

One or more embodiments are illustrated by corresponding figures in the drawings, which are not to be construed as limiting the embodiments, unless expressly stated otherwise, and the drawings are not to scale.

Fig. 1 is a schematic structural diagram of an antenna array according to an embodiment of the present invention;

fig. 2 is a schematic circuit diagram of an antenna array according to an embodiment of the present invention;

fig. 3 to 4 are schematic partial structural diagrams of an antenna array according to an embodiment of the present invention;

fig. 5 to 6 are schematic partial structural diagrams of an antenna array according to an embodiment of the present invention;

fig. 7 is a schematic connection structure diagram of an antenna array assembly apparatus according to another embodiment of the present invention.

Detailed Description

Known from the background art, the prior art has the problem that the arrangement of each part of the antenna array is not flexible.

Analysis shows that one of the reasons why the components of the antenna array are not flexibly placed is that in the prior art, an FPC (Flexible Printed Circuit) mode is generally adopted to establish the radio frequency connection and power supply for the antenna array module at the same time, so that a reinforcing plate needs to be designed on the FPC to enhance the mechanical strength of the FPC. Therefore, one side of the FPC is a reinforcing plate and can only be used as a single-side swinging part, and the power connector and the radio-frequency connector can only be placed on one side of the FPC, so that the problem that all parts of the antenna array are not flexibly placed is caused.

The utility model provides an antenna array, wherein one end of a PCB (printed circuit board) adapter plate is provided with a first port connector; the radio frequency connector and the power connector are positioned on the bearing surface of the PCB adapter plate and are used for connecting a radio frequency cable and the PCB adapter plate and providing a channel for an intermediate frequency signal; the antenna array module is provided with a second port connector at one end, the antenna array module is fixedly connected with the PCB adapter plate, and the second port connector is electrically connected with the first port connector, so that the adapter plate can respectively transmit the intermediate frequency signal and the current to the second port connector through the first port connector through the radio frequency connector and the power connector, and the antenna array module can normally work. Meanwhile, the first port connector and the second port connector are respectively positioned at the ends of the PCB adapter plate and the antenna array module, so that two bearing surfaces of the PCB adapter plate can be used for placing a decoration, namely a power connector and a radio frequency connector can be placed on the two bearing surfaces of the PCB adapter plate, when the antenna array is connected with the radio frequency module, the power connector and the radio frequency connector can be arranged on different bearing surfaces of the PCB adapter plate according to different placing modes, and therefore the placing position of the antenna array can be more flexible.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in the examples of the present application, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.

Fig. 1 is a schematic structural diagram of an antenna array according to an embodiment of the present invention.

Referring to fig. 1, an antenna array includes: the PCB adapter board 100, one end of the PCB adapter board 100 has the first port connector 101; the rf connector 102 and the power connector 103 are located on the bearing surface of the PCB interposer 100; the antenna array module 110 has a second port connector (not shown) at one end of the antenna array module 110, the antenna array module 110 is fixedly connected to the PCB interposer 100, and the second port connector is electrically connected to the first port connector 101.

The antenna array module 110 may be a millimeter wave antenna array module. The millimeter wave is an electromagnetic wave with the wavelength of 1 mm-10 mm, and the frequency of the millimeter wave applied to the communication field at present is 24.25 GHz-41 GHz. Because the millimeter waves are difficult to pass through buildings or obstacles and are easily absorbed by leaves and rainwater, the antenna array module is required to carry out beam forming, and millimeter wave signals are concentrated on a beam pointing to the user direction. When performing beamforming, not only a communication connection between the antenna array module 110 and the radio frequency module needs to be established, but also a power supply needs to be provided for the antenna array module 110 so that the antenna array module can normally operate.

The PCB interposer 100 serves as a transfer structure for establishing an intermediate frequency connection and a power supply connection between the antenna array module 110 and the rf module. The rf connector 102 is connected to the rf module through a coaxial cable, and then connected to the antenna array module 110 through the first port connector 101, so as to provide an intermediate frequency connection channel for the rf module and the antenna array module 110. The power connector 103 is connected to the circuit board 150 through a power connection line 140 to provide power to the antenna array module 110.

Specifically, referring to fig. 2, regarding the electrical connection relationship among the first port connector 101, the second port connector, the rf connector 102 and the power connector 103, fig. 2 is a schematic circuit connection principle diagram of an antenna array according to an embodiment of the present invention.

Referring to fig. 2, the if signal is transmitted between the rf module and the antenna array module 110 through the rf connector 102, the first port connector 101 and the second port connector; the power is transmitted to the first port connector 101 through the power connector 103, and transmitted to the second port connector through the first port connector 101, so as to supply power to the antenna array module 110. In the embodiment, the intermediate frequency signal and the millimeter wave signal are converted by the antenna array module 110, and the antenna array module 110 plays roles of amplification, noise reduction, frequency conversion, amplitude modulation, phase modulation, and the like.

In some embodiments, the PCB interposer 100 has a first carrying surface and a second carrying surface opposite to each other, and the first port connector 101 may be located on the first carrying surface.

In the embodiment, the PCB interposer 100 is a hard PCB interposer 100, so that the PCB interposer 100 does not need to be reinforced, and both bearing surfaces of the PCB interposer 100 can be used as a decoration. For example, the first and second carrying surfaces of the PCB interposer 100 can be used for placing the rf connector 102 and the power connector 103.

In some embodiments, the rf connector 102 and the power connector 103 are respectively located on different carrying surfaces of the PCB interposer 100. The rf connector 102 and the power connector 103 are located on different bearing surfaces of the PCB interposer 100, so that when the antenna array is connected to the rf module, a connection line between the rf connector 102 and the rf module and a connection line between the power connector 103 and the rf module can be led out from two bearing surfaces of the PCB interposer 100 respectively. Therefore, when the antenna array is connected to the rf module, the routing manner is more flexible than the manner in which the rf connector 102 and the power connector 103 are located on the same carrying surface of the PCB interposer 100, so that the antenna array is more flexible in placement.

Specifically, in one particular embodiment, as shown in fig. 2, the first port connector 101 has a plurality of grounded first ports, the first port is designated 3/5/7/10/11/12/13/14/16/15 in fig. 2, the first port connector 101 has a second port connected to the rf connector 102, the second port is designated 1/9 in fig. 2, the first port connector 101 also has a third port connected to the power connector 103, the third port is designated 4/2/8/6 in fig. 2; the rf connector 102 has a first rf connection port, which is indicated as 2 in fig. 2, connected to ground, and the rf connector 102 also has a second rf connection port, which is indicated as 1 in fig. 2, connected to the second port of the first port connector 101; the power connector 103 has a plurality of grounded first power connection ports, which are indicated at 3/4/7/8/9/10 in fig. 2, and a plurality of second power connection ports, which are connected to the third port of the first port connector 101, which are indicated at 1/2/5/6 in fig. 2, wherein the second power connection port, which is indicated at 1, is connected to the third port, which is indicated at 2, the second power connection port, which is indicated at 2, is connected to the third port, which is indicated at 4, and the second power connection port, which is indicated at 5/6, is connected to the third port, which is indicated at 8/6.

Referring to fig. 3 to 4, in some embodiments, the power connector 103 may be located on the first carrying surface, that is, the power connector 103 is located on the same surface as the first port connector 101, and the rf connector 102 is located on the second carrying surface.

Referring to fig. 5 to 6, in other embodiments, the rf connector 102 may be located on the first carrier surface, that is, the rf connector 102 is located on the same surface as the first port connector 101, and the power connector 103 is located on the second carrier surface.

It is understood that in some embodiments, the power connector 103, the rf connector 102 and the first port connector 101 may be located on the same carrier surface of the PCB interposer 100.

In some embodiments, the rf connector 102 includes: a first radio frequency connector 11 and a second radio frequency connector 12 which are arranged at intervals.

The first rf connector 11 and the second rf connector 12 are connected to the rf module through rf cables, and are used for transmitting intermediate frequency signals between the rf module and the antenna array module 110 in different polarization directions. In this way, signals transmitted by the first rf connector 11 and the second rf connector 12 will not interfere with each other. In particular, in some embodiments, the first radio frequency connector 11 may receive intermediate frequency signals in a horizontal polarization direction, and the second radio frequency connector 12 may receive intermediate frequency signals in a vertical polarization direction.

Referring to fig. 3 and 5, the first rf connector 11 and the second rf connector 12 are arranged in a staggered manner, so that the connecting lines of the first rf connector 11 and the rf module and the connecting lines of the second rf connector 12 and the rf module do not overlap when being wired, and the antenna array is more flexibly disposed.

In some embodiments, the rf connector 102 may be a coaxial connector.

The first port connector 101 and the second port connector are both Board-to-Board (B2B, Board to Board) connectors.

The board-to-board connector is a connection between board ends of two different circuit boards, and different circuit boards can be connected together by respectively arranging micro coupling plugs and sockets on the board ends of the two circuit boards so as to establish a connection between a power supply and a signal between the two circuit boards. In the present embodiment, the board-to-board connector is a connection between an end of the carrying surface of the PCB interposer 100 and an end of the carrying surface of the antenna array module 110. Specifically, the first port connector 101 at the end of the bearing surface of the PCB interposer 100 is electrically connected to the second port connector at the end of the bearing surface of the antenna array module 110, so as to establish a power and signal connection between the PCB interposer 100 and the antenna array module 110.

In some embodiments, the first port connector 101 has a pin header and the second port connector has a box header, wherein the pin header is mated with the box header. During connection, the first port connector 101 and the second port connector can be electrically connected only by matching the pin header and the pin header, so that the PCB adapter board 100 and the antenna array module 110 can be fixed, the PCB adapter board 100 and the antenna array module 110 can be electrically connected, and the pin header can be conveniently mounted and dismounted. In addition, the PCB interposer 100 and the antenna array module 110 are not connected by a wire-routing manner, which is more beneficial to the flexible placement of the antenna array.

Specifically, in this embodiment, the number of rows of the pins and the nuts is two. In other embodiments, the number of rows of pins and nuts may be a single row, 3 rows, or 4 rows.

It is understood that in other embodiments, the first port connector 101 and the second port connector may be a strip-type connection.

In the above technical solution, the rf connector 102 and the power connector 103 are located on the bearing surface of the PCB adapter board 100, one end of the PCB adapter board 100 has the first port connector 101, one end of the antenna array module 110 has the second port connector, the antenna array module 110 is fixedly connected to the PCB adapter board 100, and the second port connector is electrically connected to the first port connector 101, so that the PCB adapter board can transmit current from the first port connector 101 to the second port connector through the power connector 103 to supply power to the antenna array module 110, and meanwhile, the PCB adapter board provides an intermediate frequency connection for the rf module and the antenna array module 110 through the rf connector 102, the first port connector 101, and the second port connector. Meanwhile, the first port connector 101 and the second port connector are respectively located at the end portions of the PCB pinboard 100 and the antenna array module 110, so that both the two bearing surfaces of the PCB pinboard 100 can be used as a decoration, when a plurality of antenna arrays are combined for use, the decoration can be arranged on different bearing surfaces of the PCB pinboard 100 according to different placing modes, and the placing positions of the antenna arrays are more flexible.

The utility model also provides an antenna array combination device, which comprises the antenna array provided by the embodiment. An antenna array assembly according to another embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 7, the antenna array assembly apparatus includes: the radio frequency module 120, the radio frequency module 120 is used for transmitting and receiving the intermediate frequency signal; a radio frequency cable 130, the radio frequency cable 130 is between the radio frequency connector 102 (refer to fig. 5) and the radio frequency module 120; a power supply module; the power connection line 140 is disposed between the power connector 103 (refer to fig. 6) and the power supply module, and the power connection line 140 supplies power to the antenna array module 110.

In some embodiments, the rf module 120 may be a mm-wave master module. The plurality of antenna arrays are combined with the millimeter wave master control module to form the antenna array combination device. Specifically, the millimeter wave master module may be located on the circuit board 150, and establish an intermediate frequency connection with each of the plurality of antenna arrays. It is noted that antenna arrays in different positions cover different radiation directions.

The rf cable 130 may be used for transmission of rf signals. In this embodiment, the rf cable 130 is electrically connected to the rf connector 102 and the mm-wave master module to form an intermediate frequency connection channel, so as to complete the intermediate frequency connection between the mm-wave master module and the antenna array

The power supply module is used for providing power, and the power connection line 140 is electrically connected with the power connector 103 and the power supply module, and transmits the current of the power supply module to the power connector 103. In some embodiments, the power supply module may be a circuit board 150, and the power connection 140 is connected to the circuit board to transmit current to the power connector 103. In other embodiments, the power supply module may also be the rf module 120, and the power connection 140 is connected to the rf module 120 to transmit the current to the power connector 103. The power connection line 140 may be a flexible power connection line 140, and the flexible power connection line 140 has a better bending property, so that when the power connector 103 is connected to the power supply module, the antenna arrays are connected to the rf module 120 in a more flexible wiring manner.

The rf connector 102 and the power connector 103 are respectively located on different bearing surfaces of the PCB adapter board 100, so that the rf cable 130 and the power connecting line 140 can be led out from different bearing surfaces of the PCB adapter board 100, and the routing manner of the rf cable 130 and the power connecting line 140 can be adjusted according to different placement positions of the antenna array module 110. Thus, the antenna array modules 110 are more flexible in placement when connected to the rf module 120. In the embodiment, 4 antenna array modules 110 are disposed to be connected to the rf module 120, and the antenna array modules 110 may be disposed above the side of the circuit board 150 to be connected to the rf module 120, or disposed on the side of the circuit board 150 to be connected to the rf module 120. The bearing surface of the antenna array module 110 disposed above the side of the circuit board 150 may be disposed opposite to the surface of the circuit board 150 on which the rf module 120 is disposed, or may be disposed perpendicular to the surface of the circuit board 150; the supporting surface of the antenna array module 110 located at the side of the circuit board 150 is disposed perpendicular to the surface of the circuit board 150. The rf connector 102 and the power connector 103 are respectively located on different carrying surfaces of the PCB adapter board 100, so that the rf cable 130 and the power connecting wire 140 are respectively led out from the different carrying surfaces of the PCB adapter board 100 to be connected to the rf module 120. In other embodiments, when the number of the antenna array modules 110 is large, the placement positions of different antenna array modules 110 can be flexibly adjusted, so that the radio frequency connection is established between the array of the antenna array modules 110 and the radio frequency module 120, and the radiation coverage of the antenna array modules 110 in all directions relative to the circuit board 150 is realized.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the utility model, and that various changes in form and details may be made therein without departing from the spirit and scope of the utility model in practice. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. An antenna array, comprising:

the PCB adapter plate is provided with a first port connector at one end;

the radio frequency connector and the power connector are positioned on the bearing surface of the PCB adapter plate;

and one end of the antenna array module is provided with a second port connector, the antenna array module is fixedly connected with the PCB adapter plate, and the second port connector is electrically connected with the first port connector.

2. An antenna array according to claim 1 wherein the PCB interposer has opposing first and second bearing surfaces, the first port connector being located on the first bearing surface.

3. An antenna array according to claim 2 wherein the power connectors are located on the first bearing surface.

4. An antenna array according to claim 2 wherein the radio frequency connectors are located on the first bearing surface.

5. An antenna array according to claim 1 wherein the rf connector and the power connector are located on different carrier surfaces of the PCB interposer.

6. An antenna array according to claim 1, wherein the radio frequency connector comprises: the first radio frequency connector and the second radio frequency connector are arranged at intervals.

7. An antenna array according to claim 1, wherein the first port connector has a pin header and the second port connector has a box header, wherein the pin header is coordinated with the box header.

8. An antenna array according to claim 1 wherein the first port connector and the second port connector are both board-to-board connectors.

9. An antenna array assembly comprising an antenna array according to any one of claims 1 to 8.

10. An antenna array assembly apparatus according to claim 9, further comprising:

the radio frequency module is used for transmitting and receiving intermediate frequency signals;

a radio frequency cable between the radio frequency connector and the radio frequency module;

a power supply module;

and the power supply connecting wire is arranged between the power supply connector and the power supply module and supplies power to the antenna array module.