CN104810605B - A kind of antenna assembly for separately coupling feed-in - Google Patents
A kind of antenna assembly for separately coupling feed-in Download PDFInfo
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- CN104810605B CN104810605B CN201410033922.2A CN201410033922A CN104810605B CN 104810605 B CN104810605 B CN 104810605B CN 201410033922 A CN201410033922 A CN 201410033922A CN 104810605 B CN104810605 B CN 104810605B
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Abstract
The present invention relates to a kind of antenna assembly, more particularly to a kind of antenna assembly for separately coupling feed-in.It includes a mainboard or display screen metallic support, a metal frame, and metal frame includes a short side, and metal frame is provided with an at least breakpoint, at least one feed pin for being connected to radio-frequency front-end in short side, it is characterised in that：It also includes：By breakpoint by metal frame short side be separated to form one close to it is described feed pin electric metal arm and one away from it is described feed pin low frequency metal arm；One antenna coupling unit, including a longer low frequency coupling branch and a shorter high-frequency coupling branch positioned at low frequency coupling branch close to metal frame short side side, the end of the low frequency coupling branch is close to the low frequency metal arm, and the high-frequency coupling branch is close to the electric metal arm.It has preferable bandwidth, and debugging is conveniently.
Description
Technical field：
The present invention relates to a kind of antenna assembly, more particularly to a kind of antenna assembly for separately coupling feed-in.
Background technology：
For the mobile terminal of common plastic shell, user prefers the mobile terminal of metal-like, and thus
The aerial signal problem brought is always to perplex the problem of industry.
Relatively effective solution has three kinds at present：Antenna directly presents metal frame side breakpoint mode, antenna directly presents metal frame
Side bottom breakpoint mode and antenna coupling metal frame base breakpoint mode.Each of which solution has several specific real
Existing mode.
Such as Chinese invention patent (application number：201310038945.8) disclosed in a kind of mobile terminal coupling feed-in type
Antenna assembly, its antenna used coupling metal frame base breakpoint mode, it only has a low frequency coupling unit and one connects
The high-frequency parasitic unit on ground, and only allow low frequency coupling unit to couple metal arm with low frequency in homonymy close to coupling metal frame, feed point,
It is directly presented with antenna as the breakpoint mode of metal frame side bottom, there is the shortcomings that bandwidth deficiency, debugging difficulty is big；And antenna directly presents gold
Belong to frame side breakpoint mode there is also hold when communication quality degradation the shortcomings that.
The content of the invention：
Object of the present invention is to provide a kind of antenna assembly for separately coupling feed-in.It has preferable bandwidth, adjusts
Examination is convenient.
What a kind of technical scheme of antenna assembly for separately coupling feed-in of the present invention was realized in：
A kind of antenna assembly for separately coupling feed-in, it includes a mainboard or display screen metallic support, a metal frame, metal
Frame includes a short side, and metal frame is provided with an at least breakpoint in short side, and at least one feed pin for being connected to radio-frequency front-end, it is special
Sign is：It also includes：
Be separated to form metal frame short side by breakpoint one is remote described close to the electric metal arm of the feed pin and one
Feed the low frequency metal arm of pin；
One antenna coupling unit, including a longer low frequency coupling branch and one couple branch close to metal frame positioned at low frequency
The shorter high-frequency coupling branch of short side side, the end of the low frequency coupling branch is close to the low frequency metal arm, the height
Frequency coupling branch is close to the electric metal arm.
A kind of antenna assembly for separately coupling feed-in of the present invention has the following advantages that compared with prior art：
1. one coupling unit of the day bundle of lines of patent of the present invention splits into low frequency coupling branch and high-frequency coupling branch, and
The low frequency couples branch and high-frequency coupling branch simultaneously close to metal frame, and the low frequency metal arm is away from feed point, electric metal arm
Close to feed point, the parasitic element not being grounded, this enables the antenna of the present invention more independently to tune low frequency and high frequency, even in
Under poor antenna environment, antenna remains to keep preferable bandwidth and efficiency；
2. using antenna separately to couple metal frame base breakpoint technique, solving holding influences big, narrower bandwidth, debugging hardly possible
The problem of big is spent, has reached preferable effect；
3. the nearly feed point of electric metal arm rest, what is coupled nearby is high-frequency coupling, so the antenna high frequency bandwidth of the present invention has
Clear superiority；
4. there is no too strong coupling between the electric metal arm and low frequency metal arm of the antenna of the present invention, it is easier to radiate,
Further improve the low frequency bandwidth of antenna.
The quantity of feed pin described above is one, and the high-frequency coupling branch and low frequency coupling branch are commonly connected to this
Feed pin, the high-frequency coupling branch couple with high-frequency coupling arm, the low frequency couple branch and meanwhile with low frequency coupling arm and height
Frequency coupling arm is coupled or individually coupled with low frequency coupling arm.
Between high-frequency coupling branch described above and electric metal arm, low frequency coupling branch and low frequency metal arm between, it is low
It can be connected between frequency coupling branch and electric metal arm by lamped element.
The first tie point and the second tie point are additionally provided between metal frame and mainboard or display screen metallic support described above,
First tie point and the second tie point are connected to ground.
Brief description of the drawings：
The present invention is described in detail below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of antenna assembly embodiment one for separately coupling feed-in of the present invention；
Fig. 2 is a kind of antenna standing wave pattern of antenna assembly embodiment one for separately coupling feed-in of the present invention；
Fig. 3 is a kind of antenna impedance polar coordinates circle of antenna assembly embodiment one for separately coupling feed-in of the present invention
Figure；
Fig. 4 is a kind of structural representation of antenna assembly embodiment two for separately coupling feed-in of the present invention；
Fig. 5 is a kind of structural representation of antenna assembly embodiment three for separately coupling feed-in of the present invention；
Fig. 6 is a kind of structural representation of antenna assembly example IV for separately coupling feed-in of the present invention.
Embodiment：
As shown in Figure 1, Figure 2 and Figure 3, it is a kind of antenna assembly embodiment one for separately coupling feed-in of the present invention：
A kind of antenna assembly for separately coupling feed-in, it includes a mainboard or display screen metallic support 1, a metal frame 2, gold
Category frame 2 includes a short side, and metal frame is provided with the first breakpoint 21 and the second breakpoint 22 in short side, and one is connected to radio-frequency front-end
Pin 5 is fed, it also includes：
By the first breakpoint 21 and the second breakpoint 22 by metal frame short side be separated to form one close to the feed pin 5 high frequency
Low frequency metal arm 23 of the metal arm 24 and one away from the feed pin；
One antenna coupling unit, including a longer low frequency coupling branch 3 and one are located at low frequency and couple branch 3 close to metal
The shorter high-frequency coupling branch 4 of frame short side side, the end of low frequency coupling branch 3 close to the low frequency metal arm 23,
The high-frequency coupling branch 4 is close to the electric metal arm 24.
The high-frequency coupling branch 4 and low frequency coupling branch 3 are commonly connected to the feed pin 5, the high-frequency coupling point
Branch 4 couples with high-frequency coupling arm 24, and the low frequency coupling branch 3 individually couples with low frequency coupling arm 23.
The first tie point 6 and the second tie point 7 are additionally provided between the metal frame 2 and mainboard or display screen metallic support 1,
First tie point 6 and the second tie point 7 are connected to ground.
The metal frame 2 can be the metal front frame or metal center of mobile terminal.
It is illustrated in figure 4 a kind of structural representation of antenna assembly embodiment two for separately coupling feed-in of the present invention
Figure；
Unlike embodiment one, the metal frame 2 adds USB moulds in being provided only with the first breakpoint 21 on short side
Block 8.
It is illustrated in figure 5 a kind of structural representation of antenna assembly embodiment three for separately coupling feed-in of the present invention
Figure；
Unlike embodiment one, low frequency coupling branch 3 simultaneously with low frequency coupling arm 23 and high-frequency coupling arm 24
Coupling, further increases low frequency bandwidth.
It is illustrated in figure 6 a kind of structural representation of antenna assembly example IV for separately coupling feed-in of the present invention
Figure.
Unlike embodiment three, pass through the first lump member between the high-frequency coupling branch 4 and electric metal arm 24
Part 27 connects, low frequency coupling branch 3 and low frequency metal arm 23 between connected by the second lamped element 25, low frequency coupling branch 3
Connected between electric metal arm 24 by the 3rd lamped element 26, the coupling of seam is substituted using lamped element, may be such that antenna
Debugging becomes simple；
First lamped element 27, the second lamped element 25, the 3rd lamped element 26 can be electric capacity.
Above content is in conjunction with specific embodiments to the further description of the present invention, it is impossible to regards as specifically implementing
Scheme is confined to these explanations.Such as：The quantity of the feed point be not limited only to one, the high-frequency coupling branch, low frequency coupling
The length of branch and the gap size of metal frame are not limited only to the content disclosed in embodiment accompanying drawing, increase coupling branch and metal
The coupling amount of frame arm can realize that vice versa, resonable by reducing both gaps, increasing the methods such as both respective length
Solution can easily adjust breakpoint location the invention is intended on the basis of, the position of the first tie point and the second tie point and
High-frequency coupling branch and low frequency couple branch length to carry out the optimization of antenna.For the technology people of the technical field of the invention
For member, without departing from the inventive concept of the premise, embodiment of the invention is not limited to examples detailed above, in this hair
In bright specific implementation process, embodiment can also make some deductions or optimization, and these are deduced or optimization all should
It is considered as belonging to protection scope of the present invention.
Claims (1)
1. a kind of antenna assembly for separately coupling feed-in, it includes a mainboard or display screen metallic support, a metal frame, metal frame
Including a short side, metal frame is provided with an at least breakpoint, at least one feed pin for being connected to radio-frequency front-end, its feature in short side
It is：Also include：
By breakpoint by metal frame short side be separated to form one close to it is described feed pin electric metal arm and one away from the feed
The low frequency metal arm of pin；
One antenna coupling unit, including a longer low frequency coupling branch and one couple branch close to metal frame short side positioned at low frequency
The shorter high-frequency coupling branch of side, the end of the low frequency coupling branch is close to the low frequency metal arm, the high frequency coupling
Branch is closed close to the electric metal arm；
The quantity of the feed pin is one, and the high-frequency coupling branch and low frequency coupling branch are commonly connected to the feed pin,
The high-frequency coupling branch couples with high-frequency coupling arm, low frequency coupling branch simultaneously with low frequency coupling arm and high-frequency coupling arm
Coupling individually couple with low frequency coupling arm, between the high-frequency coupling branch and electric metal arm, low frequency couple branch and low
It can be connected between frequency metal arm, between low frequency coupling branch and electric metal arm by lamped element, the metal frame and mainboard
Or the first tie point and the second tie point are additionally provided between display screen metallic support, the first tie point and the second tie point connect with ground
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033922.2A CN104810605B (en) | 2014-01-23 | 2014-01-23 | A kind of antenna assembly for separately coupling feed-in |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033922.2A CN104810605B (en) | 2014-01-23 | 2014-01-23 | A kind of antenna assembly for separately coupling feed-in |
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| Publication Number | Publication Date |
|---|---|
| CN104810605A CN104810605A (en) | 2015-07-29 |
| CN104810605B true CN104810605B (en) | 2018-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410033922.2A Active CN104810605B (en) | 2014-01-23 | 2014-01-23 | A kind of antenna assembly for separately coupling feed-in |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826681B (en) * | 2015-09-02 | 2018-05-11 | 维沃移动通信有限公司 | A kind of antenna system |
| CN105244599A (en) * | 2015-10-30 | 2016-01-13 | 维沃移动通信有限公司 | Antenna of mobile terminal and mobile terminal |
| CN105977614B (en) * | 2016-05-30 | 2020-02-07 | 北京小米移动软件有限公司 | Communication antenna, control method and device of communication antenna and terminal |
| CN107492708B (en) * | 2017-07-26 | 2020-09-25 | 北京小米移动软件有限公司 | Double-antenna structure applied to terminal, terminal shell and terminal |
| CN107492718B (en) * | 2017-07-26 | 2020-07-10 | 北京小米移动软件有限公司 | Double-antenna structure applied to terminal, terminal shell and terminal |
| CN112003018A (en) * | 2020-08-26 | 2020-11-27 | 维沃移动通信有限公司 | Electronic device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106211A (en) * | 2006-07-14 | 2008-01-16 | 连展科技电子（昆山）有限公司 | Dual loop multi-frequency antenna |
| CN102255134A (en) * | 2011-04-21 | 2011-11-23 | 广东欧珀移动通信有限公司 | Multi-coupling built-in antenna device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9118109B2 (en) * | 2010-12-17 | 2015-08-25 | Qualcomm Incorporated | Multiband antenna with grounded element |
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2014
- 2014-01-23 CN CN201410033922.2A patent/CN104810605B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106211A (en) * | 2006-07-14 | 2008-01-16 | 连展科技电子（昆山）有限公司 | Dual loop multi-frequency antenna |
| CN102255134A (en) * | 2011-04-21 | 2011-11-23 | 广东欧珀移动通信有限公司 | Multi-coupling built-in antenna device |
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| Publication number | Publication date |
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| CN104810605A (en) | 2015-07-29 |
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