CN106876879B

CN106876879B - Antenna assembly and terminal

Info

Publication number: CN106876879B
Application number: CN201710121758.4A
Authority: CN
Inventors: 杨怀
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-03-02
Filing date: 2017-03-02
Publication date: 2020-03-06
Anticipated expiration: 2037-03-02
Also published as: CN106876879A

Abstract

The embodiment of the invention discloses an antenna assembly and a terminal. The antenna assembly comprises a substrate, a plurality of first antenna units and a plurality of second antenna units, wherein the first antenna units and the second antenna units are arranged on the substrate; the plurality of first antenna units are sequentially arranged along a first direction to form a first antenna array, and the plurality of antenna units are sequentially arranged along a second direction to form a second antenna array; the first direction and the second direction are not parallel to each other. The antenna array is arranged from two different directions, directional radiation of two angles is realized, and the integral radiation performance of the antenna is ensured while multi-input multi-output is realized.

Description

Antenna assembly and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an antenna assembly and a terminal.

Background

The antenna has always been the key problem to be solved in the intelligent terminal. Especially, in the future 5G communication, a large number of transmitting and receiving antennas need to be integrated in the smart terminal in order to face the multi-antenna technology. A Multiple-Input Multiple-Output (MIMO) antenna is integrated in an intelligent terminal with a limited size, and meanwhile, the overall radiation performance of the antenna needs to be ensured, which becomes a great challenge.

Disclosure of Invention

The embodiment of the invention provides an antenna assembly and a terminal, which can improve the safety of terminal information.

The embodiment of the invention provides an antenna assembly, which comprises a substrate, a plurality of first antenna units and a plurality of second antenna units, wherein the plurality of first antenna units and the plurality of second antenna units are arranged on the substrate;

the plurality of first antenna units are sequentially arranged along a first direction to form a first antenna array, and the plurality of antenna units are sequentially arranged along a second direction to form a second antenna array;

the first direction and the second direction are not parallel to each other.

Correspondingly, the embodiment of the invention provides a terminal, which comprises a display screen, a shell and the antenna assembly; the display screen and the antenna assembly are arranged in the shell, the antenna assembly is located between the display screen and the shell, and the antenna assembly is the antenna assembly.

The antenna assembly provided by the embodiment of the invention comprises a substrate, a plurality of first antenna units and a plurality of second antenna units, wherein the plurality of first antenna units and the plurality of second antenna units are arranged on the substrate; the plurality of first antenna units are sequentially arranged along a first direction to form a first antenna array, and the plurality of antenna units are sequentially arranged along a second direction to form a second antenna array; the first direction and the second direction are not parallel to each other. The antenna array is arranged from two different directions, directional radiation of two angles is realized, and the integral radiation performance of the antenna is ensured while multi-input multi-output is realized.

Before proceeding with the detailed description below, it may be advantageous to define certain words and phrases used in this patent document: the term "include" and its derivatives mean including but not limited to; the term "or" is an inclusive meaning, meaning and/or; the phrases "associated with … …" and "associated therewith" and derivatives thereof may mean including, included within, interconnected with … …, containing, contained within, connected to or connected with … …, coupled to or coupled with … …, communicable with … …, cooperative with … …, staggered, juxtaposed, immediately adjacent, bonded to or bonded with … …, having the properties of … …, and the like; and the term "controller" means any device, system or part thereof that controls at least one operation, such as may be implemented in hardware, firmware, or software, or some combination of at least two of the same. It should be noted that the functionality associated with any particular controller may be distributed or centralized locally or remotely. Definitions for certain words and phrases are provided throughout this patent document, those of ordinary skill in the art should understand that in many, if not most instances, such definitions apply to prior, as well as future uses of such defined words and phrases.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is an exploded schematic view of a terminal according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a terminal according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a first antenna assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a second antenna assembly provided in the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a third antenna assembly provided in an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a fourth antenna assembly provided in the embodiment of the present invention.

Fig. 7 is a schematic view of a placement area of an antenna assembly provided by an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," "third," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so described are interchangeable under appropriate circumstances. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

DETAILED DESCRIPTION FIGS. 1 through 7, discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the present disclosure. Those skilled in the art will understand that the principles of the invention may be implemented in any suitable arrangement. Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. Further, a terminal according to an exemplary embodiment will be described in detail with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements.

Although terms such as "first," "second," etc. may be used to describe embodiments, such components are not necessarily limited to the above terms. The above terms are only used to distinguish different components. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terms used in the description of the present invention are only used to describe specific embodiments, and are not intended to show the concept of the present invention. Unless the context clearly dictates otherwise, expressions used in the singular form encompass expressions in the plural form. In the present specification, it is to be understood that terms such as "comprising," "having," and "containing" are intended to specify the presence of the features, integers, steps, acts, elements, components, or groups thereof disclosed in the specification, and are not intended to preclude the possibility that one or more other features, integers, steps, acts, elements, components, or groups thereof may be present or may be added. Like reference symbols in the various drawings indicate like elements.

The embodiment of the invention provides an antenna assembly and a terminal. The details will be described below separately.

Fig. 1 illustrates an exploded view of a terminal 100 provided according to an embodiment of the present invention. Fig. 2 is a perspective view of the terminal 100 according to the embodiment of the present invention. Fig. 1 and 2 show a smartphone as an embodiment of the terminal 100, but terminals such as a tablet PC, a notebook PC, and a PDA may also be used as an embodiment.

The terminal 100 according to an exemplary embodiment may include a cover plate 10, a display 20, an antenna assembly 30, and a housing 40. Further, the terminal 100 may further include a power supply 50.

The cover plate 10 may be disposed in front of the display screen 20. In the present embodiment, "front" refers to a direction in which a side of the display screen 20 on which information is displayed faces, and "rear" refers to a direction opposite to "front".

The cover plate 10 may have an exposed area 11 exposing information displayed on the display screen 20, and a non-exposed area 12 blocking external visibility. The non-exposed region 12 may include a light shielding layer, for example, a black pad layer, so that the inside of the terminal 100 may not be visible. In some embodiments, the light shielding layer is an ink layer.

The display 20 is used for displaying an electronic document on a screen, and the display 20 may display information such as an image, a video, or a text. The display screen 20 may include a front surface to display information, and a rear surface on the opposite side of the front surface.

In some embodiments, as shown in FIG. 1, the display screen 20 may include a display area 21 for displaying information and a non-display area 22 where no information is displayed. The display area 21 may be used as a main display area of the display screen 20 for displaying most of the information. The non-display area 22 may be disposed outside the display area 21. The non-display area 22 may be used to provide an IC (integrated circuit) for controlling the display of information on the display screen 20. The non-exposed area 12 of the cover panel 10 may be disposed in front of the non-display area 22 of the display screen 20 and prevent the non-display area 22 of the display screen 20 from being seen from the outside.

And an antenna assembly 30 disposed at one side of the display screen 20 for converting a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (generally, a free space) or vice versa. Which is a component used in a radio device to transmit or receive electromagnetic waves.

In practical applications, the antenna assembly 30 may be divided into a transmitting antenna and a receiving antenna according to the operating characteristics, and may be divided into: communication antennas, broadcast antennas, television antennas, radar antennas, and the like. According to the directionality, the method can be divided into: omni-directional antennas and directional antennas, etc. According to the working wavelength, the method can be divided into: an ultra-long wave antenna, a medium wave antenna, a short wave antenna, an ultra-short wave antenna, a microwave antenna, etc. According to the structural form and the working principle, the method can be divided into the following steps: line antennas, area antennas, and the like. The dimension-based classification can be divided into two types: one-dimensional antennas and two-dimensional antennas. The method can be divided into the following steps according to different use occasions: handheld antennas, vehicle-mounted antennas, and base antennas.

In the implementation, there are various characteristic parameters describing the antenna, such as a directional pattern, a directivity coefficient, a gain, an input impedance, a radiation efficiency, a polarization, a bandwidth, and the like.

In some embodiments, the display screen 20 and the antenna assembly 30 may be housed in a housing 40 with the antenna assembly 30 positioned between the display screen 20 and the housing 40. The housing 40 may be composed of a single component or a plurality of components that may be assembled. The housing 40 is made of at least one material of a plastic material, a ceramic material, and a metal material.

The power supply 50 may be a battery, and may perform functions of managing charging, discharging, and power consumption. Further, any component may be included, such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.

Referring to fig. 3, in an embodiment of the present invention, the antenna assembly 30 may include a substrate 31, a plurality of first antenna units 32, and a plurality of second antenna units 33. As shown in fig. 3, the plurality of first antenna elements 31 and the plurality of second antenna elements 32 are disposed on the substrate 31. The plurality of first antenna units 31 are sequentially arranged along a first direction to form a first antenna array, and the plurality of antenna units 32 are sequentially arranged along a second direction to form a second antenna array. The first direction and the second direction are not parallel to each other, so that radiation of the antenna unit at two different angles is realized.

In practical applications, the plurality of first antenna elements 32 and the plurality of second antenna elements 33 in the antenna assembly 30 are disposed on the side of the substrate 31 away from the display screen 20, so that the antenna elements can transmit and receive electromagnetic waves.

Furthermore, as shown in fig. 3, in order to improve the overall performance of the antenna, the first direction and the second direction may be perpendicular to each other. That is, the first antenna array and the second antenna array may form a layout that is perpendicular to the longitudinal direction and the transverse direction on the substrate 31, so that the transverse layout may implement radiation in a direction parallel to the display screen 20, and the longitudinal layout may implement an antenna array that radiates toward the rear cover of the housing 40.

In some embodiments, the substrate may be fabricated from a medium of FR-4. For example, the substrate 31 is a PCB (printed circuit board) which is a support for electronic components and a carrier for electrical connection of electronic components, and is manufactured by electronic printing. The circuit board can be classified into a single board, a double board and a multi-board according to the number of circuit layers. The materials of the rigid PCB board generally include phenolic paper laminates, epoxy paper laminates, polyester glass mat laminates, epoxy glass cloth laminates; common materials for flexible PCBs include polyester films, polyimide films, and fluorinated ethylene propylene films. In the embodiment of the present invention, a rigid PCB is preferably used.

In practical applications, the plurality of first antenna elements 31 and the plurality of second antenna elements 32 may be disposed on the substrate 31 by chemically etching the rice.

Referring to fig. 4, in some embodiments, the antenna assembly 30 further includes a first shielding unit 34, where the first shielding unit 34 is disposed between the first antenna array and the second antenna array to isolate the first antenna array from the second antenna array, so that the radiation directions of the first antenna array and the second antenna array do not overlap, and the mutual influence between the two antenna arrays is eliminated.

Referring to fig. 5, in some embodiments, a second shielding element 35 may be further disposed between any two adjacent first antenna elements 32 to isolate any two adjacent first antenna elements 32, so as to eliminate the influence of side lobes between the respective antenna elements in the first antenna array.

Likewise, in some embodiments, the antenna assembly 30 further includes a third shielding element 36 for isolating any two adjacent second antenna elements 33. Referring to fig. 6, a third shielding unit 36 may be disposed between any two adjacent first antenna units 36 to eliminate the influence of side lobes between the antenna units in the antenna array.

In some embodiments, the first shielding element 34 is a copper material, the second shielding element 35 is a copper material, and the third shielding element 36 is a copper material. In practical application, the antenna elements may be arranged on the substrate at intervals to form a spacer exposing the FR-4 dielectric, and then copper may be laid on the FR-4 dielectric of the spacer between any two antenna elements to shield the radiation effect between the two antenna elements.

In order to realize that the radiation direction of the antennas is as small as possible, the requirement that the antennas do not interfere with each other is met. The antenna unit in the embodiment of the invention can adopt millimeter waves for communication. The frequency band used for millimeter wave communication is between 30 and 300GHz, and the corresponding wavelength is between 1 and 10 mm. The antenna is typically made approximately 1/4 wavelengths in size, according to the theory of antenna radiation. That is, in some embodiments, the first antenna element 32 has a length of 0.25 to 2.5 mm, and the second antenna element 33 has a length of 0.25 to 2.5 mm.

In addition, for millimeter waves, because the wavelength is relatively small, the corresponding millimeter wave antenna can achieve a very small wave beam, that is, the angle of the radiation direction of the antenna unit can be very small, and relatively ideal point-to-point radiation can be achieved.

In the embodiment of the present invention, considering that the PCB level and the performance of the antenna are optimal, the arrangement area of the antenna array on the substrate 31 can be flexibly designed. Preferably, the first antenna array and the second antenna array may be disposed at an edge portion of the substrate 31 in consideration of an external design of the terminal 100. Referring to fig. 7, a first antenna array and a second antenna array may be disposed at an upper edge region of a PCB board in the terminal 100, which is divided into antenna areas.

Although not shown, the mobile terminal 100 may also include a memory including one or more computer-readable storage media, a sensor, a processor, and various functional circuits, a speaker, a receiver, a bluetooth module, a fingerprint module, a camera, etc. Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting of the present invention and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

According to the terminal provided by the embodiment of the invention, the antenna arrays are arranged from two different directions, so that directional radiation of two angles is realized, multiple input and multiple output are realized, and the integral radiation performance of the antenna is ensured at the same time

For the purposes of promoting an understanding of one or more exemplary embodiments, reference is made to the exemplary embodiments illustrated in the drawings and specific language is used to describe the same. However, this specific language is not intended to limit the scope of the inventive concept, but rather the exemplary embodiments should be construed to cover all exemplary embodiments as would be generally understood by one of ordinary skill in the art.

The words "mechanism," "element," "manner," and "configuration" are generic and not limited to mechanical or physical embodiments, but may include software programs in combination with a processor or the like.

The particular embodiments shown and described herein are illustrative examples of the invention and are not intended to limit the scope of the invention in any way. For the sake of brevity, conventional electronics, control systems, software development, and other functional aspects of the systems (and components of the individual operating components of the systems) may not be described in detail. Furthermore, the connecting lines or connectors shown in the various figures are intended to represent example functional relationships and/or physical or logical connections between the various elements. It should be noted that many alternative or additional functional relationships, physical connections, or logical connections may be present in a practical device. Moreover, no element or component is essential to the practice of the invention unless an element is specifically described as "essential" or "critical". In technical terms, the words "comprising", "having", and the like, as used herein, are to be construed in an open-ended sense.

The use of the terms "a" and "an" and "the" and similar referents in the context of describing the concepts of the invention (especially in the context of the following claims) are to be construed to cover both the singular and the plural. Moreover, unless otherwise indicated herein, recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. In addition, the steps of all methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The present invention is not limited to the order of steps described. The use of any and all examples, or exemplary language (e.g., "such as") provided herein, is intended merely to better illuminate the inventive concept and does not pose a limitation on the scope of the inventive concept unless otherwise claimed. Various modifications and adaptations will be apparent to those skilled in the art without departing from the spirit and scope.

It should be understood that the exemplary embodiments described herein should be considered in descriptive sense only and not for purposes of limitation. Descriptions of features or aspects in each exemplary embodiment should generally be considered as applicable to similar features or aspects in other exemplary embodiments. While the present invention has been described with reference to exemplary embodiments, various changes and modifications may be suggested to one skilled in the art. It is intended that the present invention encompass such changes and modifications as fall within the scope of the appended claims.

Claims

1. An antenna component applied to a terminal is characterized by comprising a substrate, a plurality of first antenna units, a plurality of second shielding units and a plurality of third shielding units, the first antenna units and the second antenna units are arranged on one side of the substrate far away from the display screen, the second shielding unit is arranged between any two adjacent first antenna units to eliminate side lobe influence among the first antenna units, the third shielding unit is arranged between any two adjacent second antenna units to eliminate side lobe influence among the second antenna units, the first antenna element and the second antenna element have a length of 0.25 to 2.5 mm, the first antenna unit and the second antenna unit are millimeter wave antennas, and millimeter waves are used for communication, so that point-to-point radiation can be realized;

the plurality of first antenna units are sequentially arranged along a first direction to form a first antenna array, the plurality of antenna units are sequentially arranged along a second direction to form a second antenna array, and the first antenna array and the second antenna array are arranged at the edge part of the substrate;

an included angle is formed between the first direction and the second direction, and the first antenna array and the second antenna array radiate directionally at different angles, specifically including: the first direction and the second direction may be perpendicular to each other, and the first antenna array radiates in a direction parallel to the display screen and the second antenna array radiates in a direction facing the rear cover of the housing, or the first antenna array radiates in a direction facing the rear cover of the housing and the second antenna array radiates in a direction parallel to the display screen.

2. The antenna assembly of claim 1, further comprising a first shielding element disposed between the first antenna array and the second antenna array to isolate the first antenna array from the second antenna array.

3. The antenna assembly of claim 2, wherein the first shielding element is a copper material, the second shielding element is a copper material, and the third shielding element is a copper material.

4. An antenna assembly according to any one of claims 1-3, characterized in that the substrate is a PCB board.

5. A terminal, characterized in that the terminal comprises a display screen, a housing and the antenna assembly; the display screen and the antenna assembly are disposed in the housing, the antenna assembly being located between the display screen and the housing, the antenna assembly being the antenna assembly of any one of claims 1-4.