WO2020083075A1

WO2020083075A1 - Terminal

Info

Publication number: WO2020083075A1
Application number: PCT/CN2019/111368
Authority: WO
Inventors: 王义金; 简宪静
Original assignee: 维沃移动通信有限公司
Priority date: 2018-10-22
Filing date: 2019-10-16
Publication date: 2020-04-30
Also published as: CN109301447A; CN109301447B

Abstract

The present invention provides a terminal in which a grounding board and a shielding cover are provided. The shielding cover is electrically connected to the grounding board. A radio-frequency circuit board is provided in the shielding cover. A first radiation sheet spaced apart from the shielding cover is further provided in the terminal. A signal transmission line connected to the first radiation sheet and the radio-frequency circuit board is further provided in the terminal. The radio-frequency circuit board, the signal transmission line, and the first radiation sheet jointly constitute an antenna unit of the terminal.

Description

terminal

Cross-reference of related applications

This application claims the priority of Chinese Patent Application No. 201811230272.5 filed in China on October 22, 2018, the entire contents of which are hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a terminal.

Background technique

In order to optimize the communication function of the terminal, an antenna needs to be added in the terminal. In the related art, when an antenna is added to the terminal, the complete antenna device is generally installed at the head end or tail end of the terminal, close to the surrounding area of the existing communication antenna, or occupying the installation area of the camera, headphones and other accessories in the terminal , Which makes the installation of the antenna take up a lot of space.

It can be seen that the arrangement scheme of the antenna in the terminal in the related art has a technical problem of occupying a large space.

Summary of the invention

An embodiment of the present disclosure provides a terminal to solve the technical problem that the antenna installation scheme in the terminal has a large space occupation.

In order to achieve the above purpose, the specific solutions provided by the embodiments of the present disclosure are as follows:

In a first aspect, an embodiment of the present disclosure provides a terminal, a ground plate and a shield are provided in the terminal, the shield is electrically connected to the ground plate, and a radio frequency circuit board is provided in the shield A first radiation sheet spaced apart from the shielding case is also provided in the terminal, and a signal transmission line connecting the first radiation sheet and the radio frequency circuit board is also provided in the terminal;

The radio frequency circuit board, the signal transmission line and the first radiating sheet together constitute an antenna unit of the terminal.

In the embodiment of the present disclosure, by using the space of the shielding cover of the terminal itself, an additional antenna is realized, and no additional space is needed to set up the antenna, which saves space occupation in the terminal.

BRIEF DESCRIPTION

In order to more clearly explain the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, For a person of ordinary skill in the art, without paying any creative work, other drawings can also be obtained based on these drawings.

1 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure;

2 is a schematic structural diagram of another terminal provided by an embodiment of the present disclosure;

3 is a schematic structural diagram of another terminal provided by an embodiment of the present disclosure;

4 is a schematic structural diagram of another terminal provided by an embodiment of the present disclosure;

5 is a schematic structural diagram of another terminal provided by an embodiment of the present disclosure;

6 is a schematic structural diagram of another terminal provided by an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be described clearly and completely in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present disclosure.

1 and 2 are schematic structural diagrams of a terminal provided by an embodiment of the present disclosure. As shown in FIGS. 1 and 2, a terminal 100 is provided with a ground plate 110 and a shield 120, the shield 120 is electrically connected to the ground 110, and the shield 120 is provided There is a radio frequency circuit board 121, a first radiation sheet 130 spaced apart from the shielding case 120 is also provided in the terminal 100, and a connection between the first radiation sheet 130 and the radio frequency circuit is also provided in the terminal 100 The signal transmission line 140 of the board 121;

The radio frequency circuit board 121, the signal transmission line 140 and the first radiation sheet 130 together constitute an antenna unit of the terminal 100.

The terminal 100 provided by an embodiment of the present disclosure is provided with a ground plate 110 and a shield 120 inside. The shield 120 is electrically connected to the ground plate 110, and a radio frequency circuit board 121 is provided in the shield 120. The radio frequency circuit board 121 is used for Send and receive radio frequency signals. The shielding case 120 surrounds the radio frequency circuit board 121 in the shielding space to exclude signal interference from other surrounding components.

In addition, a signal transmission line 140 and a first radiation sheet 130 are also provided in the terminal 100, and the first radiation sheet 130 is spaced apart from the shield 120. One end of the signal transmission line 140 is connected to the signal transmission end of the radio frequency circuit board 121, and the other end of the signal transmission line 140 is connected to the first radiation sheet 130.

Through the above arrangement, the RF circuit board 121, the signal transmission line 140 and the first radiating sheet 130 may jointly constitute the antenna unit of the terminal 100, and the space between the first radiating sheet 130 and the shield 120 forms a clear space of the antenna unit, the signal The transmission line 140 and the first radiating sheet 130 form a feeding structure, and the RF circuit board 121 can realize signal feeding through the feeding structure and stimulate the first radiating sheet 130 to communicate.

The terminal 100 provided in this embodiment may include but is not limited to any device with an antenna unit, such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal 100, a wearable device, and a pedometer, without limitation. The antenna unit provided in this embodiment can also control the radio frequency circuit board 121 to transmit 5G signals at millimeter wave frequencies. The antenna unit provided in this embodiment has excellent signal transmission performance and can meet the transmission requirements of 5G signals at millimeter wave frequencies.

Optionally, both the shield 120 and the ground plate 110 may be made of metal, and the bottom surface of the shield 120 is electrically connected to the ground plate 110.

The signal transmission line 140 may be a flexible metal wire, or a structure such as a metal thimble that can realize the signal transmission function. The first radiating sheet 130 may be a flexible circuit board, or a conductive circuit made by using planar printing technology (Print Direct Structuring, PDS) or laser direct forming technology (Laser Direct Structuring, LDS).

In a specific embodiment, as shown in FIGS. 1 and 2, the first radiating sheet 130 and the ground plate 110 are respectively disposed on opposite sides of the shielding case 120.

The shield 120 is a square housing, and the bottom surface of the shield 120 is electrically connected to the ground plate 110. The first radiation sheet 130 may be disposed on the top surface of the shielding case 120 at intervals, or there is a gap between the first radiation sheet 130 and the top surface of the shielding case 120.

In another specific embodiment, the terminal further includes a back cover 150;

The first radiation sheet 130 is disposed on the inner wall of the back cover 150.

The terminal 100 is provided with a back cover 150. The back cover 150 is disposed on a side of the shielding case 120 away from the ground floor 110, and there is a gap between the back cover 150 and the ground plate 110. The back cover 150 is generally made of an insulating material, such as plastic, glass, or ceramic. Therefore, the first radiation sheet 130 can be attached to the inner wall of the back cover 150. In this way, the first radiation sheet 130 can be fixed, and The gap between the back cover 150 and the shield 120 forms a clear space of the antenna unit.

In addition, the surface of the shielding case 120 facing the first radiating sheet 130 may also be provided with a through hole 122, one end of the signal transmission line 140 is disposed in the shielding case 120, and the other of the signal transmission line 140 One end passes through the through hole 122 and is connected to the first radiating sheet 130 outside the shielding case 120.

In this way, one end of the signal transmission line 140 is disposed in the shielding case 120, and the signal transmission line 140 directly extends from the through hole 122 on the shielding case 120 and is connected to the first radiation sheet 130, and the first radiation sheet 130 is located outside the shielding case 120. The signal transmission line 140 has a simple routing and a short transmission distance, and can reduce the feeder transmission path of the antenna unit to sufficiently reduce the path loss.

Further, as shown in FIG. 2, the first radiation sheet 130 is disposed parallel to the surface of the shielding case 120 where the through hole 122 is opened, and the signal transmission line 140 is perpendicular to the surface where the through hole 122 is opened The surface of the shield 120.

A surface of the shield 120 is provided with a through hole 122, the first radiation sheet 130 is disposed parallel to the surface, and the signal transmission line 140 is perpendicular to the surface, where the surface of the shield 120 refers to the shield 120 Of the four surfaces, are close to the surface of the first radiation sheet 130. In this way, the height of the entire antenna unit can reach less than or equal to 0.5 mm. At this time, the feeder transmission path of the antenna unit is the shortest, which can further reduce the path loss and improve the signal transmission efficiency.

The terminal provided by the embodiment of the present disclosure utilizes the original shielding cover and grounding plate in the terminal to connect the radio frequency circuit board in the shielding cover to the first radiating plate spaced apart from the shielding cover in the terminal through a signal transmission line. In this way, the radio frequency circuit board, the signal transmission line and the first radiation sheet can constitute the antenna unit of the terminal. The terminal provided by the embodiment of the present disclosure multiplexes the inherent shield of the terminal to form an antenna unit, and does not require additional allocation of space to set up the antenna unit, which saves space occupation in the terminal. In addition, it does not occupy the space of other communication antennas, avoids the influence on the communication quality of other communication antennas, facilitates the antenna design in the era of full screen, and improves the communication effect of the terminal in the field of 5G.

3 to 6 are schematic structural diagrams of a terminal 100 provided by another embodiment of the present disclosure. Based on the above embodiment, at least two antenna units are provided in the terminal 100 provided by this embodiment to form an antenna array.

The terminal 100 provided in this embodiment is provided with at least two antenna elements to form an antenna array, so as to increase the beam coverage of the antenna of the terminal 100 and improve the signal transmission efficiency of the terminal 100.

In a specific embodiment, the number of the shielding covers 120 is at least one, and each shielding cover 120 may be provided with a signal transmission line 140 of at least one antenna unit.

Considering that the number of shielding covers 120 in each terminal is at least one, and the size and number of shielding covers 120 in different terminals may be different, so the scheme for forming the antenna array may also be different. The following will be shown in conjunction with FIGS. 3 to 5 The specific implementation will be described in detail.

In a specific embodiment, as shown in FIGS. 3 and 4, a shielding cover 120 is provided in the terminal 100, and at least two radio frequency circuit boards 121 are provided in the shielding cover 120. At least two through holes 122 may be formed in the shielding case 120, and each through hole 122 is provided with a first radiating sheet 130 corresponding to the inner wall of the back cover 150.

At least two signal transmission lines 140 are provided in the terminal 100, and one end of each signal transmission line 140 is connected to a radio frequency circuit board 121 in the shield 120, and the other end is connected to the corresponding first radiating sheet 130 through a through hole 122 . In this way, each RF circuit board 121, the signal transmission line 140 and the first radiating sheet 130 form an antenna unit, and a plurality of antenna units share a shield 120 to form an antenna array.

In another specific embodiment, as shown in FIG. 5 and FIG. 6, at least two shielding covers 120 are provided in the terminal 100, and one radio frequency circuit board 121 is provided in each shielding cover 120. A through hole 122 is defined in each shield 120, and a first radiating sheet 130 is provided on the inner wall of the back cover 150 corresponding to the through hole 122 on the top surface of each shield 120.

At least two signal transmission lines 140 are added in the terminal 100, and one end of each signal transmission line 140 is connected to the radio frequency circuit board 121 in a shield 120, and the other end is connected to the corresponding first radiating sheet 130 through a through hole 122 . In this way, each radio frequency circuit board 121, signal transmission line 140 and first radiating sheet 130 form an antenna unit, each antenna unit uses a shielding cover 120 alone, and a plurality of antenna units form an antenna array.

In other embodiments, the above two embodiments may also be combined to arrange the antenna array in the terminal 100. For example, at least two shields 120 are provided in the terminal 100, and the sizes of the shields 120 may be different. At least two antenna elements may be formed in a shield case 120 of a larger size, or an antenna element may be formed in a shield case 120 of a smaller size. Other solutions that can form an antenna array in the terminal 100 can be applied to this embodiment, and are not limited.

The terminal provided by the embodiment of the present disclosure utilizes multiple shielding covers in the terminal, or a shielding cover with a larger size, and at least two antenna units are laid out to form an antenna array of the terminal. In this way, the beam coverage of the terminal can be increased, and the signal transmission efficiency of the terminal can be improved. For the specific implementation process of the terminal provided by the embodiment of the present disclosure, reference may be made to the specific implementation process of the terminal provided by the foregoing embodiment, and details are not repeated herein.

On the basis of the foregoing embodiment, as shown in FIGS. 1, 3, and 5, a second radiation sheet 160 may be further provided on the outer wall of the back cover 150;

The installation position of the second radiation sheet 160 corresponds to the installation position of the first radiation sheet 130.

In this embodiment, the second radiation sheet 160 is added, and the second radiation sheet 160 is disposed on the outer wall of the back cover 150, so that the installation position of the second radiation sheet 160 corresponds to the installation position of the first radiation sheet 130, for example, the second The radiation sheet 160 is disposed toward the first radiation sheet 130. The second radiating sheet 160 serves as a retractor for the antenna unit, which effectively increases the bandwidth of the antenna unit. Specifically, the second radiation sheet 160 may be a flexible circuit board, or a conductive circuit made by direct planar printing technology or laser direct molding technology.

The above are only specific implementations of the present disclosure, but the protection scope of the present disclosure is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure. It should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

A terminal, wherein the terminal is provided with a ground plate and a shield cover, the shield cover is electrically connected to the ground plate, the shield cover is provided with a radio frequency circuit board, and the terminal is also provided with a The first radiating plates arranged at intervals between the shielding covers, and a signal transmission line connecting the first radiating plates and the radio frequency circuit board is also provided in the terminal;

The radio frequency circuit board, the signal transmission line and the first radiating sheet together constitute an antenna unit of the terminal.
The terminal according to claim 1, wherein a surface of the shielding cover facing the first radiation sheet is provided with a through hole, one end of the signal transmission line is provided in the shielding cover, and the The other end passes through the through hole and is connected to the first radiating plate located outside the shielding cover.
The terminal according to claim 2, wherein the first radiating sheet is disposed parallel to the surface of the shield case where the through hole is provided, and the signal transmission line is perpendicular to the shield where the through hole is provided The surface of the hood.
The terminal according to claim 1, wherein at least two antenna units are provided in the terminal to form an antenna array.
The terminal according to claim 4, wherein the number of the shielding covers is at least one, and each shielding cover is provided with a signal transmission line corresponding to at least one antenna unit.
The terminal according to claim 1, wherein the first radiating sheet and the ground plate are respectively disposed on opposite sides of the shielding case.
The terminal according to claim 1, comprising a back cover;

The first radiation sheet is disposed on the inner wall of the back cover.
The terminal according to claim 7, wherein a second radiation sheet is provided on the outer wall of the back cover;

The installation position of the second radiation sheet corresponds to the installation position of the first radiation sheet.
The terminal according to claim 8, wherein the first radiating sheet and / or the second radiating sheet are flexible circuit boards, or are conductive circuits manufactured by direct planar printing technology or laser direct molding technology.
The terminal according to claim 1, wherein the height of the antenna unit is less than or equal to 0.5 mm.