CN108288747B - Antenna system and mobile terminal - Google Patents

Antenna system and mobile terminal Download PDF

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Publication number
CN108288747B
CN108288747B CN201711478766.0A CN201711478766A CN108288747B CN 108288747 B CN108288747 B CN 108288747B CN 201711478766 A CN201711478766 A CN 201711478766A CN 108288747 B CN108288747 B CN 108288747B
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China
Prior art keywords
clearance area
clearance
area
antenna
antenna system
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CN201711478766.0A
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Chinese (zh)
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CN108288747A (en
Inventor
买剑春
陆慧颖
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Jiangsu Jicui Zhongyi Technology Industry Development Co ltd
AAC Module Technologies Changzhou Co Ltd
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Ruisheng Precision Manufacturing Technology Changzhou Co Ltd
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Publication of CN108288747A publication Critical patent/CN108288747A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/50Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/0006Particular feeding systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10Resonant antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands

Abstract

The present invention relates to the field of communications technologies, and in particular, to an antenna system and a mobile terminal. The antenna system comprises a rear shell and side frames which are arranged oppositely, wherein the side frames are metal frames, and each side frame is provided with a first broken joint and a second broken joint; the rear shell comprises two opposite side edges, each side edge is sequentially provided with a first clearance area, a second clearance area, a third clearance area and a fourth clearance area, and feeding points are respectively arranged on the edges of the first clearance area, the second clearance area, the third clearance area and the fourth clearance area; two the side edge is with two the side frame sets up relatively respectively, first headroom regional with first disconnected seam intercommunication, fourth headroom regional with second disconnected seam intercommunication, first headroom regional the second headroom regional the third headroom regional with the fourth headroom region forms the 5G antenna respectively. The invention can adapt to the development trend of communication technology.

Description

Antenna system and mobile terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an antenna system and a mobile terminal.
Background
With the development of communication technology, in order to cope with the rapid increase of mobile data traffic in the future and various new application scenarios, a fifth generation mobile communication technology (i.e. 5G) will become a trend of development. However, in the prior art, a mobile terminal such as a mobile phone is developed to be ultra-thin and full-screen, so that the layout space of an antenna system is very compact and a 5G antenna is difficult to implement due to the influence of the volume of the mobile terminal.
Disclosure of Invention
The invention provides an antenna system and a mobile terminal, which can solve the problems.
A first aspect of the present invention provides an antenna system comprising:
the side frames are metal frames, and each side frame is provided with a first broken joint and a second broken joint;
the rear shell comprises two opposite side edges, a first clearance area, a second clearance area, a third clearance area and a fourth clearance area are sequentially arranged on each side edge, and feeding points are respectively arranged on the edges of the first clearance area, the second clearance area, the third clearance area and the fourth clearance area;
two the side edge is with two the side frame sets up relatively respectively, first headroom regional with first disconnected seam intercommunication, fourth headroom regional with second disconnected seam intercommunication, first headroom regional the second headroom regional the third headroom regional with the fourth headroom region forms the 5G antenna respectively.
Preferably, the first clearance area, the second clearance area, the third clearance area and the fourth clearance area are strip-shaped areas, and the length direction of the strip-shaped areas is consistent with the extending direction of the side frame.
Preferably, the lengths of the second clearance area and the third clearance area are greater than the lengths of the first clearance area and the fourth clearance area.
Preferably, the width of the second clearance area and the third clearance area is greater than the width of the first clearance area and the fourth clearance area.
Preferably, the working frequency band of the 5G antenna is 3300 MHZ-3600 MHZ and 4800 MHZ-5000 MHZ.
A second aspect of the invention provides a mobile terminal comprising an antenna system as defined in any of the above.
The technical scheme provided by the invention can achieve the following beneficial effects:
according to the antenna system provided by the invention, the first clearance area, the second clearance area, the third clearance area and the fourth clearance area are arranged at the edge of the rear shell close to the side frame, so that each clearance area forms a 5G antenna, and the transmission rate of the 5G antenna can be improved and the signal-to-noise capacity of the 5G antenna can be improved through the combination of a plurality of clearance areas; meanwhile, due to the fact that the antenna structure is arranged near the side frame, the occupied space of the main screen of the mobile terminal is small, and therefore the development requirement of the full-screen mobile terminal can be met.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an antenna system according to the present invention;
FIG. 2 is a return loss and isolation diagram of one embodiment of an antenna system provided by the present invention;
fig. 3 is a radiation efficiency diagram of an embodiment of an antenna system provided by the present invention;
fig. 4 is a correlation diagram of two adjacent 5G antennas in an embodiment of the antenna system provided in the present invention.
Reference numerals:
10-a frame;
11-side frame;
111-a first break;
112-second breaking;
12-top border;
13-bottom border;
20-rear shell;
21-first headroom region;
22-a second headroom region;
23-third headroom region;
24-a fourth headroom region;
30-feeding point.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1, an embodiment of the present invention provides an antenna system, which includes a rear housing 20 and side frames 11 disposed opposite to each other, where the side frames 11 are metal frames, and each of the side frames 11 is provided with a first broken seam 111 and a second broken seam 112. The rear shell 20 comprises two opposite side edges, each side edge is provided with a first clearance area 21, a second clearance area 22, a third clearance area 23 and a fourth clearance area 24 in sequence, and the edges of the first clearance area 21, the second clearance area 22, the third clearance area 23 and the fourth clearance area 24 are respectively provided with a feeding point 30, namely the feeding point 30 is arranged at the edge of each clearance area. The two side edges and the two side frames 11 are respectively arranged oppositely, the first clearance area 21 is communicated with the first broken seam 111, and the fourth clearance area 24 is communicated with the second broken seam 112, that is, the rear shell 20 is provided with two first clearance areas 21, two second clearance areas 22, two third clearance areas 23 and two fourth clearance areas 24, so as to form an 8 x 8 array MIMO system, and the first clearance area 21, the second clearance area 22, the third clearance area 23 and the fourth clearance area 24 respectively form 5G antenna clearance.
In the antenna system, a first clearance area 21, a second clearance area 22, a third clearance area 23 and a fourth clearance area 24 are arranged at the edge of the rear shell 20 close to the side frame 11, so as to form two MIMO systems, wherein the first system comprises the second clearance area 22 and the third clearance area 23, and the clearance areas are closed areas; the second system comprises a first clearance area 21 and a fourth clearance area 24, the clearance areas are of non-closed structures, so that the four clearance areas form 5G antennas respectively, the transmission rate of the 5G antennas can be improved and the signal-to-noise capacity of the 5G antennas can be improved through the combination of a plurality of clearance areas, obviously, the invention fully utilizes the space at the edge of the mobile terminal, and a plurality of clearance areas are arranged in the limited space of the mobile terminal to form an 8 x 8 array MIMO system to form the 5G antennas, thereby adapting to the development trend of communication technology; meanwhile, the antenna structure is arranged near the side frame 11, so that the occupied space of the main screen of the mobile terminal is small, and the development requirement of a full-screen mobile terminal can be met.
The working frequency bands of the 5G antenna are 3300 MHZ-3600 MHZ and 4800 MHZ-5000 MHZ, and the two frequency bands can cover the latest frequency band of 5G in the continental region of China.
Generally, the mobile terminal includes a frame 10, and the frame 10 and the rear case 20 are made of metal materials to improve the texture of the mobile terminal. The frame 10 is surrounded along the periphery of backshell 20 and is set up, and when mobile terminal was the cuboid structure, frame 10 was the rectangle ring, and above-mentioned side frame 11 was the ascending part of rectangle ring in length direction, and frame 10 still includes the top frame 12 and the end frame 13 of connecting two side frames 11. The frame 10 and the rear case 20 may be separate structures or may be an integral structure.
To facilitate the placement of the internal components of the mobile terminal, the antenna system is typically disposed near the top frame 12 and/or the bottom frame 13 of the mobile terminal, and therefore, the first and second seams 111 and 112 are typically disposed at both ends of the side frame 11, i.e., the first seam 111 is near the top frame 12 and the second seam 112 is near the bottom frame 13.
The first clearance region 21, the second clearance region 22, the third clearance region 23, and the fourth clearance region 24 are formed by inwardly recessing the edge of the rear case 20.
Specifically, the first clearance area 21, the second clearance area 22, the third clearance area 23, and the fourth clearance area 24 are all bar-shaped areas, the length direction of the bar-shaped areas is consistent with the extending direction of the side frame 11, and by setting each clearance area as a bar-shaped area, the directivity of the 5G antenna can be improved, and further the performance of the 5G antenna can be improved.
Since the first clearance area 21 and the fourth clearance area 24 are respectively communicated with the first broken seam 111 and the second broken seam 112, the performance of the 5G antenna formed by the second system is improved, and the fully closed 5G antenna formed by the second clearance area 22 and the third clearance area 23 has a length larger than that of the first clearance area 21 and the fourth clearance area 24 in order to match the performance of the 5G antenna formed by the first clearance area 21 and the fourth clearance area 24, for example, the length of the second clearance area 22 and the third clearance area 23 can be selected to be one half of the resonant wavelength of the 5G antenna, the length of the first clearance area 21 and the fourth clearance area 24 is one quarter of the resonant wavelength of the 5G antenna, in one embodiment, the length of the second clearance area 22 and the third clearance area 23 is 32mm, the lengths of the first clearance area 21 and the fourth clearance area 24 are 13 mm.
It can be understood that, limited by the volume of the mobile terminal, the smaller the widths of the first clearance area 21, the second clearance area 22, the third clearance area 23 and the fourth clearance area 24 are, the better, in order to improve the performance of the 5G antenna, it is desirable that the larger the width is, the better, and considering that the first clearance area 21 and the fourth clearance area 24 are respectively communicated with the first broken seam 111 and the second broken seam 112, the performance of the 5G antenna can be improved, and the antenna performance of the second clearance area 22 and the third clearance area 23 is weaker, therefore, the width of the second clearance area 22 and the third clearance area 23 is larger than that of the first clearance area 21 and the fourth clearance area 24, so as to make the antenna performance of each clearance area consistent as much as possible, in one embodiment, the width of the second clearance area 22 and the third clearance area 23 is 1.5mm, and the width of the first clearance area 21 and the fourth clearance area 24 is 1 mm.
It should be noted that the length and width of each clearance area can be selected to be other values. The length refers to a dimension of the clearance area along an extending direction of the side frame 11, and the width refers to a dimension of the clearance area along a direction perpendicular to the extending direction of the side frame 11.
With the antenna system, a return loss and isolation diagram of the antenna system is shown in fig. 2, a radiation efficiency diagram of the antenna system is shown in fig. 3, and a correlation diagram of two adjacent 5G antennas in the antenna system is shown in fig. 4. The curve L1 is a return loss diagram of the first system, the curve L2 is a return loss diagram of the second system, the curve L3 is an isolation diagram of two 5G antennas formed by the second headroom region 22 and the third headroom region 23 close to the same side frame 11, and the curve L4 is an isolation diagram of two 5G antennas formed by the first headroom region 21 and the second headroom region 22 close to the same side frame 11, or two 5G antennas formed by the third headroom region 23 and the fourth headroom region 24 close to the same side frame 11. A curve L5 is a radiation efficiency diagram of the 5G antenna of the first system, and a curve L6 is a radiation efficiency diagram of the 5G antenna of the second system. Curve L7 is a correlation diagram of two 5G antennas formed by the second clearance area 22 and the third clearance area 23 close to the same side frame 11, and curve L8 is a correlation diagram of two 5G antennas formed by the first clearance area 21 and the second clearance area 22 close to the same side frame 11, or two 5G antennas formed by the third clearance area 23 and the fourth clearance area 24 close to the same side frame 11. As is apparent from fig. 2-4, the radiation efficiency of the 5G antenna formed by each clearance area is good, and the isolation and correlation between two adjacent 5G antennas are also low, which meets the requirement of the MIMO system.
In addition, the invention also provides a mobile terminal, such as a mobile phone, which comprises the antenna system.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. An antenna system, comprising:
the side frames are metal frames, and each side frame is provided with a first broken joint and a second broken joint;
the rear shell comprises two opposite side edges, a first clearance area, a second clearance area, a third clearance area and a fourth clearance area are sequentially arranged on each side edge, and feeding points are respectively arranged on the edges of the first clearance area, the second clearance area, the third clearance area and the fourth clearance area;
the first clearance area, the second clearance area, the third clearance area and the fourth clearance area form two MIMO systems, the first system comprises the second clearance area and the third clearance area, and the clearance areas are closed areas; the second system comprises a first clearance area and a fourth clearance area, wherein the clearance areas are non-closed structures;
the two side edges and the two side frames are respectively arranged oppositely, the first clearance area is communicated with the first broken seam, the fourth clearance area is communicated with the second broken seam, and the first clearance area, the second clearance area, the third clearance area and the fourth clearance area respectively form a 5G antenna; the width of the second clearance area and the third clearance area is larger than the width of the first clearance area and the fourth clearance area.
2. The antenna system of claim 1, wherein the first clearance area, the second clearance area, the third clearance area and the fourth clearance area are bar-shaped areas, and a length direction of the bar-shaped areas is consistent with an extending direction of the side frame.
3. The antenna system of claim 2, wherein the second clearance area, the third clearance area are longer than the first clearance area and the fourth clearance area.
4. The antenna system of claim 1, wherein the 5G antenna has an operating frequency band of 3300MHZ to 3600MHZ and 4800MHZ to 5000 MHZ.
5. A mobile terminal, characterized in that it comprises an antenna system according to any of claims 1-4.
CN201711478766.0A 2018-04-24 2018-04-24 Antenna system and mobile terminal Active CN108288747B (en)

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CN109193133B (en) 2018-09-14 2020-10-16 维沃移动通信有限公司 Terminal equipment antenna
CN109193137A (en) * 2018-09-30 2019-01-11 联想(北京)有限公司 A kind of electronic equipment
CN109346832B (en) * 2018-09-30 2021-11-16 联想(北京)有限公司 Electronic equipment
CN110224216B (en) * 2019-06-08 2020-11-10 西安电子科技大学 MIMO array 5G mobile phone antenna based on CRLH-TL structure
CN110289485A (en) * 2019-06-27 2019-09-27 合肥联宝信息技术有限公司 A kind of antenna and electronic equipment
WO2021000079A1 (en) * 2019-06-29 2021-01-07 瑞声声学科技(深圳)有限公司 Antenna module and mobile terminal
WO2021000081A1 (en) * 2019-06-29 2021-01-07 瑞声声学科技(深圳)有限公司 Antenna module and mobile terminal

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Effective date of registration: 20231027

Address after: 213000 No.8 Fengqi Road, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province

Patentee after: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd.

Patentee after: Jiangsu Jicui Zhongyi Technology Industry Development Co.,Ltd.

Address before: 213167 Wujin high tech Development Zone, Changzhou, Jiangsu

Patentee before: AAC MODULE TECHNOLOGIES (CHANGZHOU) Co.,Ltd.