阅读说明：本技术 电路板及其布局方法、终端设备 (Circuit board, layout method thereof and terminal equipment ) 是由 李咸珍 管恩慧 赵天月 于 2020-06-17 设计创作，主要内容包括：本发明公开了一种电路板及其布局方法、终端设备,涉及电子设备技术领域,解决了电路板上射频天线数量较多造成电路板布局困难,容易产生电磁干扰的问题。本发明的主要技术方案为：包括：本体,所述本体包括第一区域及设置于所述第一区域的外围的第二区域,所述第一区域用于布置核心板及分布于所述核心板外围的多个功能模块,所述第二区域用于布置多个接口；所述功能模块至少包括通讯模块,所述通讯模块的数量为多个,每个所述通讯模块的外围分别布置有天线区域,所述通讯模块与对应的天线区域通信连接；其中,任意两个相邻的所述通讯模块对应的所述天线区域分别设置于两个所述通讯模块非相邻侧边的外围。(The invention discloses a circuit board, a layout method thereof and terminal equipment, relates to the technical field of electronic equipment, and solves the problems that the layout of the circuit board is difficult and electromagnetic interference is easy to generate due to the fact that the number of radio frequency antennas on the circuit board is large. The main technical scheme of the invention is as follows: the method comprises the following steps: the device comprises a body, a first interface and a second interface, wherein the body comprises a first area and a second area arranged on the periphery of the first area, the first area is used for arranging a core board and a plurality of functional modules distributed on the periphery of the core board, and the second area is used for arranging a plurality of interfaces; the functional modules at least comprise a plurality of communication modules, the periphery of each communication module is respectively provided with an antenna area, and the communication modules are in communication connection with the corresponding antenna areas; the antenna areas corresponding to any two adjacent communication modules are respectively arranged on the peripheries of the non-adjacent sides of the two communication modules.)

1. A circuit board, comprising:

the device comprises a body, a first interface and a second interface, wherein the body comprises a first area and a second area arranged on the periphery of the first area, the first area is used for arranging a core board and a plurality of functional modules distributed on the periphery of the core board, and the second area is used for arranging a plurality of interfaces;

the functional modules at least comprise a plurality of communication modules, the periphery of each communication module is respectively provided with an antenna area, and the communication modules are in communication connection with the corresponding antenna areas;

the antenna areas corresponding to any two adjacent communication modules are respectively arranged on the peripheries of the non-adjacent sides of the two communication modules.

2. The circuit board of claim 1,

at least part of the antenna area of the communication module is arranged close to the edge of the first area.

3. The circuit board of claim 1,

the antenna area comprises a plurality of feeding points, at least part of the feeding points are arranged along one side of the communication module, and a preset distance is reserved between every two adjacent feeding points.

4. The circuit board of claim 3,

the preset distance between adjacent feeding points is 5 mm.

5. The circuit board of claim 4,

the communication module comprises a mobile communication module and a wireless communication module, and the number of the mobile communication modules is multiple.

6. The circuit board of claim 5,

the plurality of interfaces includes at least: the system comprises a power interface, a battery interface, a plurality of SIM card seats, an Ethernet interface, a USB interface, a TF card seat and a serial port debugging interface;

wherein at least part of the interfaces are arranged at the same side edge of the second area, and the number of the SIM card seat assemblies is the same as that of the mobile communication modules.

7. The circuit board of claim 6,

the functional module further comprises at least: an Ethernet module and a power module;

wherein the Ethernet module is disposed proximate to the Ethernet interface, and the power module is disposed proximate to the battery interface and/or the power interface.

8. A layout method of a circuit board, applied to the circuit board of any one of claims 1 to 7, comprising:

determining the arrangement position of the core board in the first area according to the shortest routing principle between each functional module and the core board;

determining the arrangement positions of the functional modules and the antenna areas corresponding to the communication modules in the functional modules according to the interface position of the second area of the body and a preset layout rule;

the preset layout rule is used for improving at least one preset performance of the functional module, and the preset performance at least comprises interference resistance.

9. The circuit board of claim 8, further comprising:

according to the arrangement position of the antenna area, obtaining the optimal value of the distance between two adjacent feed points of the antenna area through simulation calculation;

wherein the optimal value of the distance between two adjacent feeding points of the antenna area is 5 mm.

10. A terminal device, comprising:

the circuit board of any one of claims 1-7.

Technical Field

The invention relates to the technical field of electronic equipment, in particular to a circuit board, a layout method thereof and terminal equipment.

Background

Wireless communication technology is increasingly used in Printed Circuit Boards (PCBs) in various fields, and since Radio Frequency (RF) signals are important parts of PCBs, the operation of the system is affected by the layout of components. Terminal equipment can adopt 5G communication module to strengthen data transmission speed to realize the reinforcing of system, set up 5G communication module on the circuit board and need carry on multichannel radio frequency antenna, and in terminal equipment, the circuit board size is limited, therefore the degree of difficulty of radio frequency circuit design is great in the finite space, produces electromagnetic interference easily between multichannel radio frequency antenna.

Disclosure of Invention

In view of this, embodiments of the present invention provide a circuit board, a layout method thereof, and a terminal device, and mainly aim to solve the problems that the layout of the circuit board is difficult and electromagnetic interference is easily generated due to a large number of rf antennas on the circuit board. In order to achieve the purpose, the invention mainly provides the following technical scheme:

in one aspect, an embodiment of the present invention provides a circuit board, including: the device comprises a body, a first interface and a second interface, wherein the body comprises a first area and a second area arranged on the periphery of the first area, the first area is used for arranging a core board and a plurality of functional modules distributed on the periphery of the core board, and the second area is used for arranging a plurality of interfaces;

the functional modules at least comprise a plurality of communication modules, the periphery of each communication module is respectively provided with an antenna area, and the communication modules are in communication connection with the corresponding antenna areas;

the antenna areas corresponding to any two adjacent communication modules are respectively arranged on the peripheries of the non-adjacent sides of the two communication modules.

Optionally, at least a part of the antenna area of the communication module is disposed near an edge of the first area.

Optionally, the antenna area includes a plurality of feeding points, at least some of the feeding points are disposed along a side of the communication module, and a preset distance is provided between adjacent feeding points.

Optionally, the preset distance between adjacent feeding points is 5 mm.

Optionally, the communication module includes a plurality of mobile communication modules and a plurality of wireless communication modules.

Optionally, the plurality of interfaces at least includes: the system comprises a power interface, a battery interface, a plurality of SIM card seats, an Ethernet interface, a USB interface, a TF card seat and a serial port debugging interface;

wherein at least part of the interfaces are arranged at the same side edge of the second area, and the number of the SIM card seat assemblies is the same as that of the mobile communication modules.

Optionally, the functional module at least further includes: an Ethernet module and a power module;

wherein the Ethernet module is disposed proximate to the Ethernet interface, and the power module is disposed proximate to the battery interface and/or the power interface.

On the other hand, an embodiment of the present invention provides a layout method of a circuit board, including: determining the arrangement position of the core board in the first area according to the shortest routing principle between each functional module and the core board;

determining the arrangement positions of the functional modules and the antenna areas corresponding to the communication modules in the functional modules according to the interface position of the second area of the body and a preset layout rule;

the preset layout rule is used for improving at least one preset performance of the functional module, and the preset performance at least comprises anti-interference performance.

Optionally, the method further includes: according to the arrangement position of the antenna area, obtaining the optimal value of the distance between two adjacent feed points of the antenna area through simulation calculation;

wherein the optimal value of the distance between two adjacent feeding points of the antenna area is 5 mm.

In another aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes: the circuit board is provided.

According to the circuit board and the layout method thereof and the terminal device provided by the embodiment of the invention, the circuit board is arranged in the shell of the terminal device, the body of the circuit board comprises a first area and a second area, the second area is arranged around the periphery of the first area and is used for arranging a plurality of interfaces, the first area is used for arranging a core board and a plurality of functional modules, and in order to reduce the length of wiring between each functional module and the core board, the plurality of functional modules are arranged on the periphery of the core board, so that the effects of reducing the length of signal wiring between each functional module and the core board and considering electromagnetic compatibility can be achieved; the functional module includes the communication module at least, and the quantity of communication module is a plurality of, the peripheral antenna area of having arranged of communication module, be used for arranging and installing multichannel radio frequency antenna, radio frequency antenna arranges on terminal equipment's casing, because the body size of circuit board is limited, through should keeping away from the distribution as far as possible with the antenna area of adjacent communication module, make it distribute on the non-adjacent side of two adjacent communication modules, can be in limited arrangement space, increase the distance between the antenna area as far as possible, in order to avoid producing electromagnetic interference between the multichannel radio frequency antenna, reach and help reducing system noise, improve the inhibition ability of radio frequency signal, the effect of reducing signal distortion.

Drawings

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

fig. 2 is another schematic structural diagram of a circuit board according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating an arrangement of communication modules and antenna areas of a circuit board according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a feeding point arrangement of an antenna area of a circuit board according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 6 is a schematic flow chart illustrating a layout method of a circuit board according to an embodiment of the present invention;

in the figure: the circuit board 100, the first area 11, the core board 111, the communication module 112, the mobile communication module 1121, the wireless communication module 1122, the radio frequency pin 1120, the ethernet module 113, the power module 114, the second area 12, the power interface 121, the battery interface 122, the SIM card socket 123, the ethernet interface 124, the USB interface 125, the TF card socket 126, the serial port debugging interface 127, the antenna area 13, the feeding point 131, the terminal device 200, the first surface 21, the second surface 22, and the third surface 23.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the circuit board, the layout method thereof, and the terminal device according to the present invention, with reference to the accompanying drawings and the preferred embodiments, will be made in detail.