CN106981724B - Antenna and mobile terminal - Google Patents
Antenna and mobile terminal Download PDFInfo
- Publication number
- CN106981724B CN106981724B CN201710043052.0A CN201710043052A CN106981724B CN 106981724 B CN106981724 B CN 106981724B CN 201710043052 A CN201710043052 A CN 201710043052A CN 106981724 B CN106981724 B CN 106981724B
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- antenna
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- grounding point
- frequency band
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- 239000002184 metal Substances 0.000 claims abstract description 63
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 230000005855 radiation Effects 0.000 claims description 10
- 239000006260 foam Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
Abstract
The application relates to the technical field of radio frequency, in particular to an antenna and a mobile terminal. The antenna comprises a metal rear shell, a substrate, a tuning switch, a USB interface and a conductive piece, wherein the substrate is provided with a feeding point, a first grounding point and a second grounding point, and the feeding point, the first grounding point and the second grounding point are respectively connected with the bottom of the metal rear shell to enable the bottom to be used as a radiating body to form a first antenna unit, a second antenna unit and a third antenna unit; the first grounding point is also connected with a tuning switch in parallel, the conductive piece, the USB interface and the substrate are sequentially connected in a stacking manner, a gap is reserved between the conductive piece and the bottom along the stacking direction, and the USB interface, the conductive piece and the bottom are coupled. The frequency band of the second antenna unit can be adjusted by adjusting the thickness of the conductive piece; and the frequency band of the first antenna unit and the frequency band of the second antenna unit can be adjusted through the tuning switch, so that the simultaneous adjustment of the plurality of antenna units is realized.
Description
Technical Field
The application relates to the technical field of radio frequency, in particular to an antenna and a mobile terminal.
Background
An antenna of a conventional mobile terminal, such as a mobile phone, generally includes a metal housing, a substrate and an antenna unit, wherein the substrate is connected to the metal housing, and a feeding point and a grounding point are disposed on the substrate, and the feeding point and the grounding point are respectively connected to the antenna unit.
With the structure, only one grounding point is arranged between the antenna unit and the substrate, so that the resonant frequency of the antenna is limited and cannot be adjusted, and the application range is limited.
Disclosure of Invention
The application provides an antenna and a mobile terminal, which can solve the problems.
A first aspect of the present application provides an antenna, comprising a metal rear shell, a substrate, a tuning switch, a USB interface, and a conductive member,
the metal rear shell comprises a top part, a middle part and a bottom part, and gaps are reserved between the bottom part and the middle part and between the top part and the middle part;
the substrate is provided with a feeding point, a first grounding point and a second grounding point, the feeding point, the first grounding point and the second grounding point are respectively connected with the bottom, the first grounding point and the second grounding point are positioned on the same side of the feeding point, and the second grounding point is closer to the feeding point than the first grounding point, so that the bottom is used as a radiating body to form a first antenna unit, a second antenna unit and a third antenna unit;
the first grounding point is also connected with the tuning switch in parallel and used for adjusting the frequency band of the first antenna unit and the frequency band of the second antenna unit;
the conductive piece, the USB interface and the substrate are sequentially connected in a stacked manner, a gap is reserved between the conductive piece and the bottom along the stacking direction, and the USB interface, the conductive piece and the bottom are coupled and used for adjusting the frequency band of the third antenna unit;
the bottom portion comprises a first end and a second end, and the tuning switch is located between the first end and the feed point; the effective radiation path of the first antenna element is as follows: a portion of the bottom portion between the first end and the feed point;
the USB interface is located between the tuning switch and the feeding point, and an effective radiation path of the second antenna unit is: a portion of the bottom portion between the first end and the feed point.
Preferably, the base plate is further provided with a plurality of rear shell grounding points, and each rear shell grounding point is respectively connected with the middle part, so that the middle part forms a systematic ground.
Preferably, the rear housing further comprises an elastic metal column, at least one of the space between the rear housing ground point and the middle portion and the space between the first ground point and the bottom portion is connected through the elastic metal column, and the elastic force direction of the elastic metal column is parallel to the stacking direction.
Preferably, the system further comprises a middle frame, wherein the middle frame is connected with the metal rear shell, so that the middle frame is systematically included.
Preferably, the power supply device further comprises a metal spring leg, at least one of the feed point and the bottom, the second ground point and the bottom, and the middle frame and the metal rear shell are connected through the metal spring leg, and the direction of the elastic force of the metal spring leg is parallel to the stacking direction.
Preferably, the frequency band of the first antenna unit is 824 MHz-960 MHz.
Preferably, the frequency band of the second antenna unit is 1710MHz to 2170 MHz.
Preferably, the effective radiation path of the third antenna unit is: and the part of the bottom part between the feeding point and the second end, and the frequency band of the third antenna unit is 2300 MHz-2690 MHz.
Preferably, the conductive piece is conductive foam.
A second aspect of the application provides a mobile terminal comprising an antenna as defined in any of the above.
The technical scheme provided by the application can achieve the following beneficial effects:
the application provides an antenna, the base plate sets up two ground points: the first grounding point is provided with a tuning switch, a USB interface and a conductive piece are added, and the height of the whole USB interface and the conductive piece as a radiating body is adjustable through the connection of the USB interface and the conductive piece so as to adjust the interval between the USB interface and the conductive piece and the bottom, and further adjust the frequency band of the second antenna unit; and the frequency band of the first antenna unit and the frequency band of the second antenna unit can be adjusted through the tuning switch, so that simultaneous adjustment of a plurality of antenna units is realized, and the problems of narrow bandwidth and difficult coverage of the frequency bands are effectively solved.
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 application.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an antenna provided in the present application;
FIG. 2 is a return loss plot of one embodiment of an antenna provided herein;
fig. 3 is a radiation efficiency diagram of an embodiment of an antenna provided by the present application.
Reference numerals:
10-a metal back shell; 11-bottom; 12-middle part; 13-a gap;
20-middle frame;
30-a substrate; 31-a second ground point; 32-a feeding point; 33-a first ground point; 34-rear shell grounding point;
40-metal spring feet;
50-a resilient metal post;
60-USB interface;
70-conductive piece.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
The embodiment of the application provides a mobile terminal, such as a mobile phone, which comprises an antenna. As shown in fig. 1, the antenna includes a metal rear case 10, a substrate 30, a tuning switch, a USB interface 60, and a conductive member 70. Generally, the metal back shell 10 has a three-segment structure, i.e. it includes a top portion (not shown), a middle portion 12 and a bottom portion 11, gaps 13 are left between the bottom portion 11 and the middle portion 12 and between the top portion and the middle portion 12, the bottom portion 11 includes a bottom plate opposite to the base plate 30, and side plates connected to the edges of the bottom plate, sometimes there are connecting ribs between the top portion or the bottom portion 11 and the middle portion 12.
A clearance area is provided on the extending surface of the base plate 30, the clearance area being opposed to the bottom 11. Specifically, the substrate 30 is provided with a feeding point 32, a first grounding point 33 and a second grounding point 31, the feeding point 32, the first grounding point 33 and the second grounding point 31 are respectively connected with the bottom 11, generally, the first grounding point 33 and the second grounding point 31 are respectively connected with different positions of the bottom 11, the first grounding point 33 and the second grounding point 31 are located on the same side of the feeding point 32, and the second grounding point 31 is closer to the feeding point 32 than the first grounding point 33, so that the bottom 11 is used as a radiator to form a first antenna unit, a second antenna unit and a third antenna unit. Further, the first grounding point 33 is also connected in parallel with a tuning switch, that is, the first grounding point 33 is connected with the bottom 11 through the tuning switch, and the first tuning switch may be an inductive tuning switch or a capacitive tuning switch, so that different matching circuits are connected with the bottom 11 for adjusting the frequency band of the first antenna unit and the frequency band of the second antenna unit. Typically the antenna further comprises a system ground to which the first ground point 33, the second ground point 31 are connected.
The USB interface 60 is disposed on the substrate 30 for facilitating communication. The conductive member 70 and the USB interface 60 are sequentially connected to the substrate 30 in a stacked manner, and a space is left between the conductive member 70 and the bottom 11 along the stacked direction, that is, when the bottom plate is provided, the conductive member 70 is not in contact with the bottom plate, and a space is left between the conductive member 70 and the bottom plate, so that the USB interface 60 and the conductive member 70 are coupled to the bottom 11 as a whole, that is, the USB interface 60 and the conductive member 70 are used as a radiator, and the size of the space in the thickness direction is adjusted by adjusting the thickness of the conductive member 70 (the thickness guides the size of the conductive member 70 in the thickness direction of the metal rear case 10), thereby adjusting the frequency band.
In the antenna, the first grounding point 33 and the second grounding point 31 are arranged on the substrate 30, the tuning switch is arranged on the first grounding point 33, the USB interface 60 and the conductive piece 70 are added, and the height of the whole body of the USB interface 60 and the conductive piece 70 as a radiator (the height refers to the dimension of the USB interface 60 and the conductive piece 70 in the thickness direction of the metal rear shell 10) can be adjusted by adjusting the thickness of the conductive piece 70, so that different dimensions of the interval between the radiator and the bottom plate are realized, and the frequency band of the third antenna unit is adjusted; and the frequency band of the first antenna unit and the frequency band of the second antenna unit can be adjusted through different gears of the tuning switch, so that simultaneous adjustment of a plurality of antenna units is realized, and the problems of narrow bandwidth and difficulty in covering the frequency bands are effectively solved.
In order to better ground the central portion 12 to form the system ground, the substrate 30 is further provided with a plurality of rear housing ground points 34, and the rear housing ground points 34 may be provided with two, three or more, as shown in fig. 1, which shows three rear housing ground points 34, it is understood that five, six or more rear housing ground points 34 may be provided on the substrate 30, and each rear housing ground point 34 is connected with a different position of the central portion 12, so that each ground point is grounded more reliably, and the stability of the antenna performance is increased.
Because errors are inevitably generated in the manufacturing and assembling processes, in order to ensure the reliability of the connection between the feeding point 32, the first grounding point 33, and the second grounding point 31 and the metal rear shell 10 after the metal rear shell 10 and the substrate 30 are mounted, at least one of the connection between the rear shell grounding point 34 and the middle portion 12 and the connection between the first grounding point 33 and the bottom portion 11 are connected by the elastic metal column 50, that is, only the connection between the rear shell grounding point 34 and the middle portion 12 may be connected by the elastic metal column 50, or only the connection between the first grounding point 33 and the bottom portion 11 may be connected by the elastic metal column 50; generally, the rear housing contact point 34 and the middle portion 12, and the first contact point 33 and the bottom portion 11 are connected by the elastic metal column 50, and the direction of the elastic force of the elastic metal column 50 is parallel to the stacking direction. Usually, the elastic metal posts 50 are connected to the feeding point 32, the first grounding point 33, and the second grounding point 31, respectively, so that after the metal rear shell 10 is fastened to the substrate 30, the elastic metal posts 50 abut against the metal rear shell 10 under the action of the elastic force, thereby achieving the reliability of the connection between the substrate 30 and the metal rear shell 10.
Generally, the antenna further includes a middle frame 20, and the middle frame 20 is connected to the metal back case 10, so that the middle frame 20 also serves as a system ground, thereby forming a more stable system ground and increasing the stability of the antenna performance. One or more connecting positions of the middle frame 20 and the metal rear shell 10 can be provided, as shown in fig. 1, which shows an embodiment of two positions, and the two positions are located at two positions of the middle frame 20 opposite to the middle portion 12.
Alternatively, at least one of the feeding point 32 and the bottom 11, the second grounding point 31 and the bottom 11, and the middle frame 20 and the metal back shell 10 is connected by the metal spring leg 40, that is, only one or two of the feeding point 32 and the bottom 11, the second grounding point 31 and the bottom 11, and the middle frame 20 and the metal back shell 10 are connected by the metal spring leg 40, or all three of them are connected by the metal spring leg 40, wherein the direction of the elastic force of the metal spring leg 40 is parallel to the stacking direction, the metal spring leg 40 is connected to the second grounding point 31 and the feeding point 32 of the middle frame 20 or the substrate 30, and when the middle frame 20, the substrate 30 and the metal back shell 10 are fastened, the metal spring leg 40 abuts against the metal back shell 10, so as to realize the connection between the middle frame 20 and the metal back shell 10, and increase the reliability of the connection between the substrate 30, the middle frame 20 and the metal back shell 10.
It should be noted that the feeding point 32 and the bottom portion 11, the second grounding point 31 and the bottom portion 11, and the middle frame 20 and the metal rear shell 10 may be connected by the elastic metal column 50, and the rear shell grounding point 34 and the middle portion 12, and the first grounding point 33 and the bottom portion 11 may be connected by the metal spring pin 40, but of course, the rear shell grounding point 34 and the middle portion 12, the first grounding point 33 and the bottom portion 11, the feeding point 32 and the bottom portion 11, the second grounding point 31 and the bottom portion 11, and the middle frame 20 and the metal rear shell 10 may be directly connected, or connected by other structures.
Further, there is also a plastic part between the conductive piece 70 and the metal rear shell 10 to fix the structures in the mobile terminal conveniently, in order to ensure the interval between the USB interface 60 and the conductive piece 70 as a whole and the metal rear shell 10, the conductive piece 70 is often selected as conductive foam, and in the installation process or the use process, the conductive foam can play a role of buffering, and reduce the damage to the USB interface 60.
In the above embodiments, the frequency band of the first antenna unit is 824MHz to 960MHz, the frequency band of the second antenna unit is 1710MHz to 2170MHz, and the frequency band of the third antenna unit is 2300MHz to 2690 MHz.
Specifically, the bottom portion 11 includes a first end and a second end, that is, the bottom portion 11 has two ends along the edge of the side plate, which are the first end and the second end respectively. For better antenna performance, the tuning switch is located between the first end and the feeding point 32, so that the effective radiation path of the first antenna element is: the portion of the bottom portion 11 between the first end and the feeding point 32, i.e. the portion of the bottom portion 11 between the first end and the feeding point 32, acts as a main radiator of the first antenna element.
The USB interface 60 is located between the tuning switch and the feeding point 32, so that the effective radiation path of the second antenna element is: the portion of the bottom part 11 located between the first end and the feeding point 32, i.e. the portion of the bottom part 11 located between the first end and the feeding point 32, also acts as a main radiator for the second antenna element.
The effective radiation path of the third antenna element is: the portion of the bottom portion 11 located between the feeding point 32 and the second end, i.e. the portion of the bottom portion 11 located between the second end and the feeding point 32, acts as the main radiator of the third antenna element.
The return loss diagram of the antenna adopting the structure is shown in fig. 2, which shows the return loss situation of the tuning switch in three states, and it can be seen from the diagram that the low frequency band (namely, the first antenna unit) and the medium frequency band (namely, the frequency band range of the second antenna unit) can be adjusted by adjusting the three states of the tuning switch, the frequency range of the low frequency band can be covered to 698MHz-960MHz, and the problems of narrow bandwidth and difficult coverage of the frequency band are effectively solved.
The antenna efficiency diagram is shown in fig. 3, in which a solid dark black line, a dashed dark black line, and a dashed light gray line represent the antenna efficiency of the tuning switch in three gears, respectively, and it can be known from the diagram that by switching the gears of the tuning switch, frequency bands can be effectively allocated, it is ensured that carrier aggregation can meet requirements, and then the state with better efficiency is adjusted to meet the customer requirements.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. An antenna is characterized by comprising a metal rear shell, a substrate, a tuning switch, a USB interface and a conductive piece,
the metal rear shell comprises a top part, a middle part and a bottom part, and gaps are reserved between the bottom part and the middle part and between the top part and the middle part;
the substrate is provided with a feeding point, a first grounding point and a second grounding point, the feeding point, the first grounding point and the second grounding point are respectively connected with the bottom, the first grounding point and the second grounding point are positioned on the same side of the feeding point, and the second grounding point is closer to the feeding point than the first grounding point, so that the bottom is used as a radiating body to form a first antenna unit, a second antenna unit and a third antenna unit;
the first grounding point is also connected with the tuning switch in parallel and used for adjusting the frequency band of the first antenna unit and the frequency band of the second antenna unit;
the conductive piece, the USB interface and the substrate are sequentially connected in a stacked manner, a gap is reserved between the conductive piece and the bottom along the stacking direction, and the USB interface, the conductive piece and the bottom are coupled and used for adjusting the frequency band of the third antenna unit;
the bottom portion comprises a first end and a second end, and the tuning switch is located between the first end and the feed point; the effective radiation path of the first antenna element is as follows: a portion of the bottom portion between the first end and the feed point;
the USB interface is located between the tuning switch and the feeding point, and an effective radiation path of the second antenna unit is: a portion of the bottom portion between the first end and the feed point.
2. An antenna according to claim 1, wherein the substrate is further provided with a plurality of rear housing ground points, each rear housing ground point being connected to a respective one of the central portions so that the central portion forms a system ground.
3. The antenna of claim 2, further comprising an elastic metal post, wherein at least one of the rear housing ground point and the middle portion and the first ground point and the bottom portion are connected by the elastic metal post, and an elastic force direction of the elastic metal post is parallel to the stacking direction.
4. The antenna of claim 2, further comprising a middle frame coupled to the metal back shell such that the middle frame is systematically included.
5. The antenna of claim 4, further comprising a metal spring leg, wherein at least one of the feeding point and the bottom, the second ground point and the bottom, and the middle frame and the metal rear shell are connected by the metal spring leg, and an elastic force direction of the metal spring leg is parallel to the stacking direction.
6. The antenna of claim 1, wherein the frequency band of the first antenna element is 824 MHz-960 MHz.
7. The antenna of claim 1, wherein the frequency band of the second antenna unit is 1710MHz to 2170 MHz.
8. The antenna of claim 1, wherein the effective radiation path of the third antenna element is: and the part of the bottom part between the feeding point and the second end, and the frequency band of the third antenna unit is 2300 MHz-2690 MHz.
9. The antenna of claim 1, wherein the conductive member is a conductive foam.
10. A mobile terminal, characterized in that it comprises an antenna according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043052.0A CN106981724B (en) | 2017-01-19 | 2017-01-19 | Antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710043052.0A CN106981724B (en) | 2017-01-19 | 2017-01-19 | Antenna and mobile terminal |
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| Publication Number | Publication Date |
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| CN106981724A CN106981724A (en) | 2017-07-25 |
| CN106981724B true CN106981724B (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710043052.0A Expired - Fee Related CN106981724B (en) | 2017-01-19 | 2017-01-19 | Antenna and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288749B (en) * | 2018-01-30 | 2021-06-15 | 瑞声科技(新加坡)有限公司 | Antenna system and mobile terminal |
| CN108470982B (en) * | 2018-03-22 | 2021-03-30 | 深圳捷豹电波科技有限公司 | Antenna module for mobile terminal and mobile terminal |
| CN109040352B (en) * | 2018-06-12 | 2020-06-23 | Oppo广东移动通信有限公司 | Antenna position adjusting method and device, mobile terminal and storage medium |
| CN208835266U (en) * | 2018-08-03 | 2019-05-07 | 瑞声精密制造科技(常州)有限公司 | Antenna system and mobile terminal |
| CN110381683A (en) * | 2019-07-09 | 2019-10-25 | Oppo（重庆）智能科技有限公司 | Earthing member, shell and electronic device |
| CN111147100A (en) | 2019-12-31 | 2020-05-12 | Oppo广东移动通信有限公司 | Radio frequency module and electronic equipment |
| CN111769849B (en) * | 2020-06-05 | 2021-09-21 | Oppo广东移动通信有限公司 | Communication apparatus, control method, control apparatus, mobile terminal, and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102002874B1 (en) * | 2013-03-28 | 2019-07-24 | 삼성전자주식회사 | Antenna device for portable terminal |
| CN103236583B (en) * | 2013-04-25 | 2016-06-08 | 上海安费诺永亿通讯电子有限公司 | A kind of novel LTE metal frame antenna strengthening bandwidth |
| CN203674373U (en) * | 2013-12-24 | 2014-06-25 | 上海安费诺永亿通讯电子有限公司 | All-metal mobile terminal multi-slot antenna |
| CN204348912U (en) * | 2014-11-28 | 2015-05-20 | 深圳市信维通信股份有限公司 | For having the LTE carrier aggregation antenna of metal framework portable set |
| CN104638343B (en) * | 2015-01-22 | 2017-10-17 | 讯创(天津)电子有限公司 | The antenna assembly of all-metal construction electronic equipment |
| CN204596947U (en) * | 2015-05-12 | 2015-08-26 | 联想(北京)有限公司 | Mobile terminal antenna and mobile terminal |
| CN105789884A (en) * | 2016-04-19 | 2016-07-20 | 惠州硕贝德无线科技股份有限公司 | Cell phone antenna structure based on metallic back cover |
| CN205846212U (en) * | 2016-07-01 | 2016-12-28 | 瑞声科技(新加坡)有限公司 | Whole frequency band antenna structure of mobile phole |
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