CN106025499A - Antenna device and mobile terminal - Google Patents
Antenna device and mobile terminal Download PDFInfo
- Publication number
- CN106025499A CN106025499A CN201610619510.6A CN201610619510A CN106025499A CN 106025499 A CN106025499 A CN 106025499A CN 201610619510 A CN201610619510 A CN 201610619510A CN 106025499 A CN106025499 A CN 106025499A
- Authority
- CN
- China
- Prior art keywords
- wire coil
- mobile terminal
- antenna assembly
- metal
- sheet metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
- H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
Abstract
The invention relates to an antenna device and a mobile terminal. The antenna device comprises a feed source, a metal coil and at least two metal sheets; the feed source is electrically connected with the metal coil and feeds a feed signal into the metal coil, the metal sheets are connected to the metal coil in a coupling mode and symmetrically arranged around the geometric center of the metal coil, and a spacing distance is formed between every two adjacent metal sheets. According to the antenna device, the metal sheets are symmetrically arranged on the metal coil and connected to the metal coil in the coupling mode, therefore, the metal sheets expand a magnetic field of the metal coil, the coupling area of the magnetic field of the antenna device is increased, and then the user experience of the antenna device is improved.
Description
Technical field
The present invention relates to electronic device field, particularly relate to a kind of antenna assembly and mobile terminal.
Background technology
Along with the rise of mobile payment service, electronic applications promotes NFC (Near Field
Communication, wireless near field communication) fast development of industry, and mobile terminal is in NFC industry
Most important part.Most mobile terminals use wire coil as the antenna radiator of NFC, leads to
Cross the number of turns that wire coil is set, and the live width of metal wire is set to regulate NFC antenna radiance.So
And use wire coil to be usually present field strength as the radiant body of NFC antenna and compare the problem of concentration, lead
The coupling area causing NFC antenna reduces, and reduces Consumer's Experience.
Summary of the invention
The present invention provides a kind of and increases coupling area, the antenna assembly improving Consumer's Experience and mobile terminal.
A kind of antenna assembly provided by the present invention, wherein, described antenna assembly includes feed source, metal wire
Circle and at least two sheet metal, described feed source electrically connects described wire coil, to described wire coil feed-in
Electric feed signal, sheet metal described at least two is of coupled connections in described wire coil, and around described wire coil
Geometric center symmetry arrangement, there is spacing between adjacent two described sheet metals.
The present invention also provides for a kind of mobile terminal, and wherein, described mobile terminal includes above-mentioned antenna assembly,
Described mobile terminal also includes that mainboard, described feed source are arranged on described mainboard.
Antenna assembly provided by the present invention and mobile terminal, by sheet metal symmetry arrangement described at least two
On described wire coil, and the described wire coil that is of coupled connections, thus sheet metal described at least two is to institute
The magnetic field stating wire coil is expanded so that the magnetic field coupling area of described antenna assembly increases, Jin Erti
The Consumer's Experience of high described antenna assembly.
Accompanying drawing explanation
In order to be illustrated more clearly that technical scheme, below by use required in embodiment
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 is the schematic diagram of antenna assembly provided by the present invention；
Fig. 2 is the schematic equivalent circuit of the antenna assembly of Fig. 1；
Fig. 3 is Smith's circle schematic diagram of the antenna assembly of Fig. 1；
Fig. 4 is the curve chart of the reflection characteristic of the antenna assembly of Fig. 1；
Fig. 5 is the partial schematic diagram of the mobile terminal that the present invention provides；
Fig. 6 is the partial schematic diagram of the mobile terminal that the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is entered
Row clearly and completely describes.
See also Fig. 1 and Fig. 2, a kind of antenna assembly 100 that the present invention provides, described antenna assembly 100
Including feed source 10, wire coil 20 and at least two sheet metal 30.Described feed source 10 electrically connects described
Wire coil 20, to described wire coil 20 feed-in electric feed signal, sheet metal 30 described at least two couples
It is connected to described wire coil 20, and around the geometric center symmetry arrangement of described wire coil 20, adjacent two
Spacing is there is between described sheet metal 30.It is understood that described antenna assembly 100 can apply to move
In dynamic terminal, described mobile terminal can be mobile phone, panel computer or notebook computer etc..
By sheet metal described at least two 30 symmetry arrangement on described wire coil 20, and it is of coupled connections
Described wire coil 20, thus the magnetic field of described wire coil 20 is carried out by sheet metal 30 described at least two
Expand so that the magnetic field coupling area of described antenna assembly 100 increases, and then improves described antenna assembly 100
Consumer's Experience.
In present embodiment, described feed source 10 can be arranged on mainboard, by described wire coil 20
Send electric feed signal, to encourage described wire coil 20 to produce magnetic field.Described feed source 10 is adjusted by control
Joint selfcapacity impedance and the coupling of inductive impedance, and then make described wire coil 20 radiate low-frequency resonant magnetic
, to meet near-field communication requirement.The end of described feed source 10 arranges metal clips, utilizes metal clips
Contact on described wire coil 20, thus send electric feed signal to described wire coil 20.Certainly, exist
In other embodiments, described feed source 10 can also be independent of mainboard, and described feed source 10 can also be led to
Cross the control signal receiving central processing unit, to control to adjust the impedance matching of described antenna assembly 100.
In present embodiment, described wire coil 20 is formed by Copper Foil line winding, and described wire coil 20 can
To be fixed on flexible base board, and covered by thin film, to form radiation assembly.Described wire coil 20 exists
When being applied to mobile terminal, can be affixed on the center of mobile terminal.Described wire coil 20 is provided with gold
Finger 21, described golden finger 21 is inconsistent with the metal clips of described feed source 10, to be electrically connected to state feedback
Power supply 10, and receive electric feed signal from described feed source 20.Electric feed signal is received at described wire coil 20
After, produced low-frequency resonant magnetic field by electric feed signal excitation.Thus described wire coil 20 can communicate with another
Device realizes in-plant electromagnetic field couples, thus realizes near-field communication.By arranging described wire coil 20
Winding turns and after the adjacent wires spacing distance of described wire coil 20 is set, to described wire coil
20 debug, thus reach the design of the optimization to described antenna assembly 100 so that described antenna assembly 100
Impedance matching and signal processing reach optimization.In other embodiments, described wire coil 20 also may be used
Be use aluminum steel winding constituted.
In present embodiment, described sheet metal 30 is copper foil.Described sheet metal 30 and described wire coil
Insulating trip it is fixed with between 20.Described insulating trip completely cuts off described sheet metal 30 and described wire coil 20, makes
Obtain described sheet metal 30 and described wire coil 20 couples.Described sheet metal 30 couples with described wire coil
After so that described sheet metal 30 can be with radiation field, thus described sheet metal 30 is by described wire coil 20
Concentrate the field strength at geometric center to weaken, strengthen the field, magnetic field at described wire coil 20 edge simultaneously
By force.Owing to sheet metal 30 symmetry arrangement described at least two is on described wire coil 20, and then make institute
State sheet metal 30 and expand the field strength equilibrium dispersion of described wire coil 20, the most described wire coil 20 He
Described sheet metal 30 gives off Large-area Magnetic Field jointly, and described antenna assembly 100 obtains bigger magnetic field coupling
Area.In other embodiments, described sheet metal 30 can also is that aluminium flake.
Further, described wire coil 20 is made up of, described in two adjacent rings the metal wire 22 of predetermined amount
Spacing is there is between metal wire 22.In present embodiment, described wire coil 20 is enclosed described metal wire by two
22 are constituted.Two enclose described metal wire 22 is formed by Copper Foil line winding two circle.Two enclose described metal wire 22
It is arranged side by side.Described golden finger 21 includes the first feed side 211 and the second feed side 212.Described first feedback
Enter end 211 and described second feed side 212 is respectively arranged at head end and the end of the two described metal wires of circle 22.
And described wire coil 22 is closed loop coil, i.e. two head ends enclosing described metal wires 22 are connected with end.Institute
State feed source 10 and be electrically connected to described first feed side 211 and described second feed side 212.Two enclose described gold
After belonging to the electric feed signal that line 22 receives described feed source 10, produce magnetic field.As a kind of optimal way, often
The thickness of metal wire 22 described in one is 0.05mm, and width is 0.3mm.Two enclose between described metal wire 22
Spacing be 0.15mm.Certainly, in other embodiments, described wire coil 20 can also be by setting
Put the described metal wire 22 of the different number of turns, so that described wire coil 20 has different inductance values；Institute
Stating the spacing between thickness and the width of metal wire 22, and adjacent two described metal wires 22 can also root
Convert according to debugging.
Further, described wire coil 20 is rectangular ring-type, and described wire coil 20 is by two long limits 23
Constituting with two broadsides 24, described antenna assembly 100 includes two described sheet metals 30, two described metals
Sheet 30 lays respectively on the broadside 24 of described wire coil 20.As the more excellent embodiment of one, described length
The a length of 50mm on limit 23, a length of 20mm of described broadside 24.Described sheet metal 30 is rectangular slab
Part.The length of described sheet metal 30 is equal to the length of described broadside 24, and the width of described sheet metal 30 is more than
The width of described broadside 24.Concrete, a length of 20mm of described sheet metal 30, described sheet metal 30
Width be 8mm.By the length and width of described sheet metal 30 is configured, and to described metal
The length and width of coil 20 is configured, and the length of described metal wire 22 and thickness are configured,
The radiation signal making described antenna assembly 100 is optimized, as it is shown on figure 3, described antenna assembly 100
Produced inductance value is 1.5uH.Further, as shown in the simulation curve figure of Fig. 4, described antenna assembly 100
Primary magnetic field field strength distribution direction single, and expansion department's branch highly directive of the sheet metal 30 of both sides is more equal
Weighing apparatus, thus effectively strengthen magnetic field coupling area.In other embodiments, the length of described sheet metal 30 and
Width, and the length and width of described wire coil 20 can also convert as desired.
Further, described feed source 10 include near-field communication control chip 11, be electrically connected to described near field lead to
Believe two low-pass filter circuits 12 of control chip 11 and be electrically connected two described low-pass filter circuits 12
Two match circuits 13, two described match circuits 13 are also electrically coupled to described wire coil 20, to institute
State wire coil 20 feed-in electric feed signal.In present embodiment, described feed source 10 uses symmetrical coupling electricity
Line structure.The end of two described match circuits 13 is respectively equipped with described metal clips, and through described metal elastic
Sheet is connected to described first feed side 211 and described second feed side 212.By described in regulation two
The impedance on distribution road 13, thus adjust the overall impedance of described antenna assembly 100, lead to adaptive described near field
The letter control chip 11 requirement to impedance.
Referring to Fig. 5 and Fig. 6, the present invention also provides for a kind of mobile terminal 200, and described mobile terminal 200 wraps
Include described antenna assembly 100.Described mobile terminal 200 also includes mainboard 40.Described feed source 10 is arranged at
On described mainboard 40.Described mainboard 40 is fixed in the housing of described mobile terminal 200.
Further, described mobile terminal 200 also includes that display screen 50, described display screen 50 include using dorsad
The back side 51 at family, described sheet metal 30, wire coil 20 and mainboard 10 stack gradually in described display screen 50
The back side 51.In present embodiment, described display screen 50 is display of organic electroluminescence, described display screen
50 employing organic materials, therefore the magnetic that the magnetic parameter of described display screen 50 self is to described antenna assembly 100
Field has decline and inhibition.And owing to the magnetic field coupling area of described antenna assembly 100 increases, described
The field strength of antenna assembly 100 is dispersed, and often place's field strength is more weak, thus described sky is traditional thread binding
Putting the 100 interference reductions to described display screen 50, the magnetic field of the most described display screen 50 is traditional thread binding to described sky
The interference putting 200 reduces.In other embodiments, described display screen 50 can also is that LCD (Liquid
Crystal Display, LCDs).
Further, also to include that ferrite 60, described ferrite 60 are fixed on described for described mobile terminal 200
Wire coil 20 and the described opposing side of sheet metal 30.In present embodiment, described ferrite 60 can be consolidated
On the center 70 of described mobile terminal 200.Concrete, described ferrite 60 is rectangle plate.Institute
State ferrite 60 and cover described wire coil 20.The thickness of described ferrite 60 is 0.08mm～0.12mm.
Described ferrite 60 has higher pcrmeability and relatively low magnetic resistance, and described ferrite 60 is by described metal wire
Circle 20 and the metal device with the described opposing side of wire coil 20 are isolated, to reduce this metal device
Magnetic interference to wire coil 20.And this metal device can be the functional part of mainboard 40, it is also possible to
It is battery or adapter etc..As a kind of preferred implementation, the pcrmeability of described ferrite 60 is more than
Or equal to 140H/m, described ferritic magnetic resistance is less than or equal to 5H.In other embodiments, described
The pcrmeability of ferrite 60 and magnetic resistance can also be debugged as required.
Antenna assembly provided by the present invention and mobile terminal, by sheet metal symmetry arrangement described at least two
On described wire coil, and the described wire coil that is of coupled connections, thus sheet metal described at least two is to institute
The magnetic field stating wire coil is expanded so that the magnetic field coupling area of described antenna assembly increases, Jin Erti
The Consumer's Experience of high described antenna assembly.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, this
A little improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. an antenna assembly, it is characterised in that described antenna assembly includes feed source, wire coil and extremely
Few two sheet metals, described feed source electrically connects described wire coil, to described wire coil feed-in feed letter
Number, sheet metal described at least two is of coupled connections in described wire coil, and around the geometry of described wire coil
Centrosymmetry is arranged, and there is spacing between adjacent two described sheet metals.
Antenna assembly the most according to claim 1, it is characterised in that described wire coil is by presetting circle
The metal wire of number is constituted, and there is spacing described in two adjacent rings between metal wire.
Antenna assembly the most according to claim 2, it is characterised in that described wire coil is rectangular ring-type,
Described wire coil is made up of two long limits and two broadsides, and described antenna assembly includes two described sheet metals,
Two described sheet metals lay respectively on the broadside of described wire coil.
Antenna assembly the most according to claim 3, it is characterised in that the length of described sheet metal is more than
Or the length equal to described broadside, the width of described sheet metal is more than or equal to the width of described broadside.
5. according to the antenna assembly described in Claims 1 to 4 any one, it is characterised in that described feed source bag
Include near-field communication control chip, be electrically connected to described near-field communication control chip two low-pass filter circuits and
Being electrically connected two match circuits of two described low-pass filter circuits, two described match circuits are also electrically connected
It is connected to described wire coil, to described wire coil feed-in electric feed signal.
6. a mobile terminal, it is characterised in that described mobile terminal includes Claims 1 to 5 any one
Described antenna assembly, described mobile terminal also includes that mainboard, described feed source are arranged on described mainboard.
Mobile terminal the most according to claim 6, it is characterised in that described mobile terminal also includes showing
Display screen, described display screen includes the back side of user dorsad, described sheet metal, wire coil and mainboard layer successively
It is laminated on the back side of described display screen.
Mobile terminal the most according to claim 7, it is characterised in that described display screen is that organic electroluminescence is sent out
Optical display unit.
Mobile terminal the most according to claim 7, it is characterised in that described mobile terminal also includes ferrum
Oxysome, described ferrite is fixed on described wire coil and the opposing side of described sheet metal.
Mobile terminal the most according to claim 9, it is characterised in that described ferritic thickness is
0.08mm～0.12mm, described ferritic pcrmeability is more than or equal to 140H/m, described ferritic magnetic resistance
Less than or equal to 5H.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619510.6A CN106025499A (en) | 2016-07-29 | 2016-07-29 | Antenna device and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610619510.6A CN106025499A (en) | 2016-07-29 | 2016-07-29 | Antenna device and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106025499A true CN106025499A (en) | 2016-10-12 |
Family
ID=57134124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610619510.6A Pending CN106025499A (en) | 2016-07-29 | 2016-07-29 | Antenna device and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106025499A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759780A (en) * | 2017-11-10 | 2019-05-17 | 广东欧珀移动通信有限公司 | Prepare method, center and the mobile terminal of center |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011062238A1 (en) * | 2009-11-20 | 2011-05-26 | 株式会社村田製作所 | Antenna device and mobile communication terminal |
| US20120112980A1 (en) * | 2010-11-03 | 2012-05-10 | Andrei Kaikkonen | Antenna Arrangement and a Portable Radio Communication Device Comprising Such An Antenna Arrangement |
| CN203553340U (en) * | 2013-06-13 | 2014-04-16 | 上海安费诺永亿通讯电子有限公司 | Double C structure NFC antenna |
| CN203813016U (en) * | 2014-04-11 | 2014-09-03 | 惠州硕贝德无线科技股份有限公司 | NFC module for communication equipment |
| CN104079311A (en) * | 2013-03-28 | 2014-10-01 | 詹诗怡 | Communication system and communication control method |
| CN204760530U (en) * | 2015-07-02 | 2015-11-11 | 上海安费诺永亿通讯电子有限公司 | Novel NFCRFID antenna device |
-
2016
- 2016-07-29 CN CN201610619510.6A patent/CN106025499A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011062238A1 (en) * | 2009-11-20 | 2011-05-26 | 株式会社村田製作所 | Antenna device and mobile communication terminal |
| US20120112980A1 (en) * | 2010-11-03 | 2012-05-10 | Andrei Kaikkonen | Antenna Arrangement and a Portable Radio Communication Device Comprising Such An Antenna Arrangement |
| CN104079311A (en) * | 2013-03-28 | 2014-10-01 | 詹诗怡 | Communication system and communication control method |
| CN203553340U (en) * | 2013-06-13 | 2014-04-16 | 上海安费诺永亿通讯电子有限公司 | Double C structure NFC antenna |
| CN203813016U (en) * | 2014-04-11 | 2014-09-03 | 惠州硕贝德无线科技股份有限公司 | NFC module for communication equipment |
| CN204760530U (en) * | 2015-07-02 | 2015-11-11 | 上海安费诺永亿通讯电子有限公司 | Novel NFCRFID antenna device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759780A (en) * | 2017-11-10 | 2019-05-17 | 广东欧珀移动通信有限公司 | Prepare method, center and the mobile terminal of center |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |