WO2017128926A1

WO2017128926A1 - Antenna, rear cover, and terminal

Info

Publication number: WO2017128926A1
Application number: PCT/CN2016/113746
Authority: WO
Inventors: 谢宁宁; 陈笛
Original assignee: 努比亚技术有限公司
Priority date: 2016-01-27
Filing date: 2016-12-30
Publication date: 2017-08-03
Also published as: CN105655687A; CN105655687B

Abstract

Disclosed are an antenna, rear cover, and terminal, said antenna comprising: a first part, arranged on the upper border frame of the rear cover provided with a border frame, or on the lower border frame, or on the upper border frame and the lower border frame; a second part, said second part being connected to said first part; the first part is provided with a feed point and a ground point; the distance between said feed point and one end of the first part is smaller than one half of the length of the first part; the distance between said ground point and the other end of the first part is smaller than one half of the length of the first part.

Description

Antenna, back cover and terminal

Technical field

This document refers to, but is not limited to, terminal technology, especially an antenna, a back cover, and a terminal.

Background technique

At present, metal mobile terminals (such as mobile phones) are the mainstream of the market, and the design of metal antennas is difficult, while the design of full-net metal antennas (working frequency bands including 824-960 megahertz (MHz), 1710-2700 MHz) is more difficult.

FIG. 1 is a schematic diagram of a framed back cover of a mobile terminal of a technical solution. As shown in FIG. 1, the back cover with the frame includes a frame 1, a metal portion 2, and a clearance portion 3; the upper frame and the lower frame of the frame 1 are respectively provided with the antenna 4.

Among them, the radiation efficiency of the high frequency band of the antenna 4 is low, and therefore, the performance of the antenna 4 is poor.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide an antenna, a back cover, and a terminal, which can improve the performance of the antenna.

An embodiment of the present invention provides an antenna, including:

The first part is set on the upper border or the lower border of the back cover with the border, or the upper border and the lower border;

a second part, the connection of the second part to the first part;

Wherein the first portion is provided with a feeding point and a grounding point, a distance between the feeding point and an end of the first portion is less than a half of a length of the first portion, the grounding point and the first The distance between the other end of the portion is less than half the length of the first portion.

Optionally, the antenna further includes: a third part connected to the other end of the second part Minute.

Optionally, the third portion is parallel to the first portion.

Optionally, the first portion has a length of 38 mm (mm) to 60 mm.

Optionally, the first portion has a length of 44 mm to 54 mm.

Optionally, the second portion is perpendicular to the first portion.

Optionally, the length of the second portion is less than the height of the clearance area.

Optionally, the low frequency switching is implemented by the switch at the grounding point.

Optionally, one end of the second portion is connected to a left end or a right end of the first portion;

Or the antenna includes two of the second portions, wherein one end of one of the second portions is connected to a left end of the first portion, and one end of the other of the second portion is connected to a right side of the first portion .

The embodiment of the invention also provides a back cover, comprising:

a frame, a metal portion connected to the frame, a clearance portion disposed on the upper and lower sides of the metal portion, and an antenna; wherein the antenna includes:

a second part, the second part and the first part;

Optionally, the back cover further includes:

a third portion of the antenna, the third portion being coupled to the other end of the second portion.

Optionally, the first portion has a length of 38 mm to 60 mm.

Optionally, the first portion has a length of 44 mm to 54 mm.

Optionally, the third portion is parallel to the first portion.

Optionally, the second portion is perpendicular to the first portion.

Optionally, a width of the gap between the first portion and the non-antenna portion of the bezel is greater than or equal to 1 mm and less than or equal to 2 mm.

The embodiment of the invention further provides a terminal, comprising: any one of the back covers described above.

The antenna of the embodiment of the present invention includes: a first portion, an upper frame or a lower frame disposed on the back cover of the frame, or an upper frame and a lower frame; and a second portion, the second portion is connected to the first portion; Wherein the first portion is provided with a feeding point and a grounding point, a distance between the feeding point and an end of the first portion is less than a half of a length of the first portion, the grounding point and the first The distance between the other end of the portion is less than half the length of the first portion. With the solution of the embodiment of the present invention, the second portion connected to the first portion at one end changes the current distribution of the antenna, thereby improving the directivity of the antenna and improving the radiation efficiency of the high frequency band, thereby effectively improving the antenna. performance.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

The drawings in the embodiments of the present invention are described below, and the accompanying drawings are used to explain the present application, and the present invention is not to be construed as limiting the scope of the application.

1 is a schematic diagram of a back cover of a mobile terminal of a technical solution;

2 is a schematic structural diagram of hardware of a mobile terminal that implements an embodiment of the present invention;

3 is a schematic diagram of a wireless communication system of the mobile terminal shown in FIG. 2;

4 is a schematic structural view of an antenna according to a first embodiment of the present invention;

Figure 5 is a schematic view showing the structure of a back cover according to a second embodiment of the present invention;

In the figure, 1 is the frame, 2 is the metal part, 3 is the clearance part, 4 is the antenna, 5 is the first part, 6 is the feeding point, 7 is the grounding point, 8 is the second part, 9 is the third part, 10 For the gap.

Embodiments of the invention

In order to facilitate the understanding of those skilled in the art, the present application is further described below in conjunction with the accompanying drawings, and is not intended to limit the scope of the application. The embodiments in the present application and the manners in the embodiments may be combined with each other without conflict.

It is understood that the embodiments described herein are merely illustrative of the application and are not intended to limit the application.

A mobile terminal embodying an embodiment of the present invention will now be described with reference to the accompanying drawings. In the following description, the suffixes such as "module," "component," or "unit" used to denote an element are merely illustrative of the embodiments of the present invention, and do not have a specific meaning per se. Therefore, "module" and "component" can be used in combination.

The mobile terminal can be implemented in a variety of forms. For example, the terminal described in the embodiments of the present invention may include, for example, a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Tablet), a PMP (Portable Multimedia Player), a navigation device Mobile terminals of the like and fixed terminals such as digital TVs, desktop computers, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes.

FIG. 2 is a schematic structural diagram of hardware of a mobile terminal that implements an embodiment of the present invention.

The mobile terminal 100 may include a wireless communication unit 110, a memory 160, a controller 180, a power supply unit 190, and the like. Figure 1 illustrates a mobile terminal having various components, but it should be understood that not all illustrated components are required to be implemented. More or fewer components can be implemented instead. The elements of the mobile terminal will be described in detail below.

Wireless communication unit 110 typically includes one or more components that permit radio communication between mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit can include a mobile communication module 112.

The mobile communication module 112 transmits the radio signals to and/or receives radio signals from at least one of a base station (e.g., an access point, a Node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or multiple types of data transmitted and/or received in accordance with text and/or multimedia messages.

The memory 160 may store a software program or the like for processing and control operations performed by the controller 180, or may temporarily store data (for example, a phone book, a message, a still image, a video, etc.) that has been output or is to be output. Moreover, the memory 160 may store data regarding vibration and audio signals of various manners that are output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card type memory (eg, SD or DX memory, etc.), a random access memory (RAM), a static random access memory ( SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, optical disk, and the like. Moreover, the mobile terminal 100 can cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

The controller 180 typically controls the overall operation of the mobile terminal. For example, the controller 180 performs the control and processing associated with voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, which may be constructed within the controller 180 or may be configured to be separate from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The embodiments described herein can be implemented in a computer readable medium using, for example, computer software, hardware, or any combination thereof. For hardware implementations, the embodiments described herein may be through the use of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays ( An FPGA, a processor, a controller, a microcontroller, a microprocessor, at least one of the electronic units designed to perform the functions described herein, in some cases, such an embodiment may be at the controller 180 Implemented in the middle. For software implementations, implementations such as procedures or functions may be implemented with separate software modules that permit the execution of at least one function or operation. The software code can be implemented by a software application (or program) written in any suitable programming language, which can be stored in memory 160 and executed by controller 180.

So far, the mobile terminal has been described in terms of its function. Hereinafter, for the sake of brevity, a slide type mobile terminal among a plurality of types of mobile terminals such as a folding type, a bar type, a swing type, a slide type mobile terminal, and the like will be described as an example. Therefore, embodiments of the present invention can be applied to any type of Mobile terminal, and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in FIG. 2 may be configured to operate using a communication system such as a wired and wireless communication system and a satellite-based communication system that transmits data via frames or packets.

A communication system in which a mobile terminal is operable according to an embodiment of the present invention will now be described with reference to FIG.

Such communication systems may use different air interfaces and/or physical layers. For example, air interfaces used by communication systems include, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)). ), Global System for Mobile Communications (GSM), etc. As a non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to FIG. 3, a CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of base stations (BS) 270, a base station controller (BSC) 275, and a mobile switching center (MSC) 280. The MSC 280 is configured to interface with a public switched telephone network (PSTN) 290. The MSC 280 is also configured to interface with a BSC 275 that can be coupled to the base station 270 via a backhaul line. The backhaul line can be constructed in accordance with any of a number of known interfaces including, for example, E1/T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. It will be appreciated that the system as shown in FIG. 2 can include multiple BSCs 275.

Each BS 270 can serve one or more partitions (or regions), each of which is covered by a multi-directional antenna or an antenna directed to a particular direction radially away from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS 270 can be configured to support multiple frequency allocations, and each frequency allocation has a particular frequency spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of partitioning and frequency allocation can be referred to as a CDMA channel. BS 270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" can be used to generally refer to a single BSC 275 and at least one BS 270. A base station can also be referred to as a "cell station." Alternatively, multiple partitions of a particular BS 270 may be referred to as multiple cellular stations.

As shown in FIG. 3, a broadcast transmitter (BT) 295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in FIG. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In Figure 2, several Global Positioning System (GPS) satellites are shown. 300. The satellite 300 helps locate at least one of the plurality of mobile terminals 100.

In Figure 3, a plurality of satellites 300 are depicted, but it is understood that any number of satellites can be utilized to obtain useful positioning information. The GPS module 115 as shown in Figure 1 is typically configured to cooperate with the satellite 300 to obtain desired positioning information. Instead of GPS tracking technology or in addition to GPS tracking technology, other techniques that can track the location of the mobile terminal can be used. Additionally, at least one GPS satellite 300 can selectively or additionally process satellite DMB transmissions.

As a typical operation of the wireless communication system, the BS 270 receives a reverse link signal from the mobile terminal 100. Mobile terminal 100 typically participates in calls, messaging, and other types of communications. Each reverse link signal received by a particular base station 270 is processed within a particular BS 270. The obtained data is forwarded to the relevant BSC 275. The BSC provides call resource allocation and coordinated mobility management functions including a soft handoff procedure between the BSs 270. The BSC 275 also routes the received data to the MSC 280, which provides additional routing services for interfacing with the PSTN 290. Similarly, PSTN 290 interfaces with MSC 280, which forms an interface with BSC 275, and BSC 275 controls BS 270 accordingly to transmit forward link signals to mobile terminal 100.

Based on the above-described mobile terminal hardware structure and communication system, an embodiment of the present invention is proposed.

As shown in FIG. 4, a first embodiment of the present invention provides an antenna, including:

a first portion 5, an upper frame or a lower frame, or an upper frame and a lower frame, disposed on the back cover of the frame; the second portion 8, the second portion is connected to the first portion;

Wherein, the first portion is provided with a feeding point 6 and a grounding point 7.

Wherein one end of the second portion 8 is connected to the left end or the right end of the first portion 5;

Alternatively, the antenna comprises two second portions 8, one end of which is connected to the left end of the first portion 5 and the other end of which is connected to the right side of the first portion 5.

That is, the second portion 8 may be disposed at the left end or the right end of the first portion 5, or the second portion 8 may be disposed at the left end and the right end of the first portion 5, respectively.

The length of the first portion 5 may be 38 millimeters (mm) to 60 mm, such as 38 mm, 48 mm or 60 mm.

When the length of the first portion 5 is 44 mm to 54 mm, for example, 44 mm, 50 mm or 54 mm Etc., the performance of the antenna is better.

The second portion 8 and the first portion 5 can be at any angle. For example, the second portion 8 can be made perpendicular to the first portion 5 for ease of the process.

The length of the second portion 8 is smaller than the height of the clearance area 3.

Wherein, the height of the clearance area 3 is greater than or equal to 5 mm and less than or equal to 10 mm.

Wherein, the distance between the feeding point 6 and one end of the first portion 5 is less than half (for example, 6 mm) of the length of the first portion 5, and the distance between the grounding point 7 and the other end of the first portion 5 is smaller than the length of the first portion 5. Half (for example, 6mm).

That is, the feed point 6 and the ground point 7 are respectively disposed at both ends of the first portion 5, and when the feed point 6 is disposed at the left end of the first portion 5, the ground point 7 is disposed at the right end of the first portion 5; when feeding When the point 6 is set at the right end of the first portion 5, the ground point 7 is disposed at the left end of the first portion 5. In Fig. 4, only the feed point 6 is provided at the left end of the first portion 5, and the ground point 7 is provided at the right end of the first portion 5 as an example.

When the feeding point 6 is set at the left end of the first portion 5, a low frequency band of 880 to 960 MHz and a high frequency band of 1710 to 2170 MHz are generated, and a switch can be passed at the grounding point 7 (such as a single pole double throw switch or a single pole four throw switch, etc.) ) Realize low frequency switching and meet the frequency band of 824~960MHz.

After the second portion 8 is added at the right end of the first portion 5, the resonant frequency and antenna directivity of the antenna can be changed, and at the same time, the second portion 8 is added to the left end of the first portion 5, and a high frequency of 2300 to 2700 MHz can be generated. The demand for the full Netcom band.

When the feeding point 6 is set at the right end of the first portion 5, a low frequency band of 880 to 960 MHz and a high frequency band of 1710 to 2170 MHz are generated, and a switch can be passed at the grounding point 7 (such as a single pole double throw switch or a single pole four throw switch, etc.) ) Realize low frequency switching and meet the frequency band of 824~960MHz.

After the second portion 8 is added at the left end of the first portion 5, the resonant frequency and antenna directivity of the antenna can be changed, and at the same time, the second portion 8 is added to the right end of the first portion 5, and a high frequency of 2300 to 2700 MHz can be generated. The demand for the full Netcom band.

When the environment in which the antenna is located is good, if the antenna can cover the entire low frequency band, the switch can be added at the ground point 7, thereby saving cost.

Optionally, the antenna further comprises: a third portion 9 connected to the other end of the second portion 8.

Among them, the third portion 9 and the second portion 8 can be at any angle. For example, for the convenience of the process, the third portion 9 can be made perpendicular to the second portion 8, i.e., the third portion 9 is parallel to the first portion 5.

When the antenna comprises two second portions 8, a third portion 9 may be included, or two third portions 9 may be included, one third portion 9 being connected to the other end of one of the second portions 8, and A third portion 9 is connected to the other end of the other second portion 8.

Referring to FIG. 5, a second embodiment of the present invention further provides a back cover, including:

a frame 1, a metal portion 2 connected to the frame 1, a clearance portion 3 disposed on the upper and lower sides of the metal portion 2, and an antenna; wherein the antenna includes:

a distance between the feed point 6 and an end of the first portion is less than a half of a length of the first portion, and a distance between the ground point 7 and the other end of the first portion is smaller than the first portion Half the length. In the figure, only the first portion 5 is disposed on the upper frame and the lower frame as an example.

Wherein, the width of the gap 10 between the first portion 5 and the non-antenna portion of the bezel 1 is greater than or equal to 1 mm and less than or equal to 2 mm.

Optionally, the back cover further comprises: a third portion 9 of the antenna, the third portion 9 being connected to the other end of the second portion 8.

A third embodiment of the present invention further provides a terminal, comprising: any one of the back covers described above.

The term "comprises", "comprises" or any other variants thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, the technical solution of the present application can be embodied in the form of a software product stored in a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk), and includes a plurality of instructions for making one The terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) performs the method described in the embodiments of the present invention.

The above are only the embodiments of the present invention, and are not intended to limit the scope of the patents of the present application, and the equivalent structure or equivalent process transformations made by the contents of the specification and the drawings of the present application, or directly or indirectly applied to other related technical fields, The same is included in the scope of patent protection of this application.

Industrial applicability

With the solution of the embodiment of the present invention, the second portion connected to the first portion at one end changes the current distribution of the antenna, thereby improving the directivity of the antenna and improving the radiation efficiency of the high frequency band, thereby effectively improving the antenna. performance.

Claims

An antenna comprising:

The first part is set on the upper border or the lower border of the back cover with the border, or the upper border and the lower border;

a second part, the connection of the second part to the first part;

Wherein the first portion is provided with a feeding point and a grounding point, a distance between the feeding point and an end of the first portion is less than a half of a length of the first portion, the grounding point and the first The distance between the other end of the portion is less than half the length of the first portion.
The antenna of claim 1 further comprising: a third portion coupled to the other end of the second portion.
The antenna of claim 2 wherein said third portion is parallel to said first portion.
The antenna according to claim 1 or 2, wherein the first portion has a length of 38 mm to 60 mm.
The antenna according to claim 4, wherein said first portion has a length of 44 mm to 54 mm.
The antenna according to claim 1 or 2, wherein the second portion is perpendicular to the first portion.
The antenna according to claim 6, wherein the length of the second portion is smaller than the height of the clearance area.
The antenna according to claim 1, wherein

Low frequency switching is achieved by the switch at the grounding point.
A back cover comprising:

a frame, a metal portion connected to the frame, a clearance portion disposed on the upper and lower sides of the metal portion, and an antenna; wherein the antenna includes:

The first part is set on the upper border or the lower border of the back cover with the border, or the upper border and the lower border;

a second part, the second part and the first part;

Wherein the first portion is provided with a feeding point and a grounding point, a distance between the feeding point and an end of the first portion is less than a half of a length of the first portion, the grounding point and the first The distance between the other end of the portion is less than half the length of the first portion.
The back cover of claim 9, the back cover further comprising:

a third portion of the antenna, the third portion being coupled to the other end of the second portion.
The back cover of claim 10 wherein said third portion is parallel to said first portion.
The back cover according to claim 9 or 10, wherein the first portion has a length of 38 mm to 60 mm.
The back cover according to claim 12, wherein the first portion has a length of 44 mm to 54 mm.
A back cover according to claim 9 or 10, wherein the second portion is perpendicular to the first portion.
The back cover according to claim 9, wherein

Low frequency switching is achieved by the switch at the grounding point.
The back cover according to claim 9 or 10, wherein a width of the gap between the first portion and the non-antenna portion of the bezel is greater than or equal to 1 mm and less than or equal to 2 mm.
A terminal comprising: the back cover according to any one of claims 9 to 16.