CN106329114B - Antenna assembly and mobile terminal with the antenna assembly - Google Patents
Antenna assembly and mobile terminal with the antenna assembly Download PDFInfo
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- CN106329114B CN106329114B CN201610752460.9A CN201610752460A CN106329114B CN 106329114 B CN106329114 B CN 106329114B CN 201610752460 A CN201610752460 A CN 201610752460A CN 106329114 B CN106329114 B CN 106329114B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- 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
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- 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
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- 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
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The present invention provides a kind of antenna assembly and with the mobile terminal of the antenna assembly.Antenna assembly includes the coil of at least two-layer laminate setting；It is respectively provided with the second feed point for being electrically connected to NFC chip or RFID chip on the coil, the first feed point for being electrically connected to WPC chip or FM chip is respectively provided on two coils on surface layer；It is connected between adjacent two layers coil by isolated location, the isolated location is configured as that the working signal of the NFC chip or RFID chip is isolated.Antenna assembly of the invention realizes the superposition of antenna effective area by the coil of multilayer laminated setting, and each layer line circle is connectable logical or is isolated and supports two different functions respectively, realizes the multiplexing of antenna assembly；Meanwhile under NFC or RFID operating mode, electromagnetic radiation field strength can be improved, optimize NFC or RFID communication performance.
Description
Technical field
The present invention relates to mobile terminal device field, in particular to a kind of antenna assembly and the movement with the antenna assembly
Terminal.
Background technique
With the continuous development of mobile terminal technology, the function that mobile terminal is carried no longer is only limitted to communicate.In recent years,
The standard configuration that such as relevant additional function of mobile payment, wireless charging is increasingly becoming mobile terminal, is pursued by consumer.It moves
The development trend of dynamic terminal is to become movable main supporting body, the additional new functions such as the social, consumption of the mankind also to become it
One of main selling point also becomes the Research Emphasis of associated terminal design producer to the compatible technique of function.
In the mobile terminals such as current mobile phone products, compatible NFC (Near Field Communication, low coverage
From wireless communication) product of function and WPC (Wireless Power Consortium, wireless charging) function has appearance, be
It supports both functions, design NFC antenna and charge coil is needed in mobile terminal, NFC antenna and charge coil are equal in structure
It is presented as coil, generally, two sets of independent cablings can be designed as in the terminal and support corresponding function, two sets of cablings respectively
The split on area.
Due to the physical characteristic of electromagnetic radiation resonant, the antenna of mobile terminal has specific requirement to track lengths；For
Raising antenna radiation efficiency, to antenna effective area also has particular requirement.Similarly, wireless charging efficiency and electric current are to it
Electromagnetic radiation intensity is converted, cabling and area to coil also have stronger design to rely on.
However, being limited to its structure for mobile terminal product, Antenna Design area will receive certain limit
System, may be unable to satisfy the demand of antenna effective area, and especially for compatible two kinds of functions, two sets of cablings need to spell on area
When conjunction, it is easier to the situation of Antenna Design area deficiency occur.In the usual insufficient situation of Antenna Design area, generally require
Design is made to the performance of one of them even two function to sacrifice, and it is bad to will lead to antenna overall performance.
Summary of the invention
The purpose of the present invention is to provide a kind of antenna assembly and with the mobile terminal of the antenna assembly, existing skill is solved
The bad problem of multiplex antenna performance in art.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
According to an aspect of the present invention, the present invention provides a kind of antenna assembly, the line including the setting of at least two-layer laminate
Circle；The second feed point for being electrically connected to NFC chip or RFID chip is respectively provided on the coil, two lines positioned at surface layer
The first feed point for being electrically connected to WPC chip or FM chip is respectively provided on circle；It is single by isolation between adjacent two layers coil
Member is connected, and the isolated location is configured as that the working signal of the NFC chip or RFID chip is isolated.
According to another aspect of the present invention, the present invention also provides a kind of mobile terminals, including WPC chip and/or FM core
Piece, NFC chip and/or RFID chip, rear shell and antenna assembly as described above；The antenna assembly is set to the rear shell
Inner wall.
Based on above-mentioned technical proposal of the invention, the present invention is at least had the advantages that in antenna assembly of the invention,
It is stacked using lattice coil and by the connected connectable logical or isolation of isolated location.It can be formed in the connection of each layer line circle
It is whole to be used as WPC charge coil or FM antenna, parallel with one another it can be used as NFC antenna or RFID antenna in each layer inductance loop seclusion,
Two kinds of functions are supported in coil multiplexing, realize the miniaturization compatible design of antenna assembly.Coil realizes antenna and being stacked
The superposition of effective area, the area of plane occupied needed for reducing, reduces the demand to Antenna Design area.And simultaneously, each layer line
Current direction when enclosing work is identical, and the magnetic field of each layer line circle is superimposed by force, and the radiation field under unit area can be improved
By force, in addition, under NFC or RFID operating mode, each coil, which is formed by NFC antenna or RFID antenna parallel connection, reduces resistance,
Operating current can also be improved, it is strong to further increase magnetic field, optimizes communication performance.
Detailed description of the invention
Fig. 1 is the setting schematic diagram of antenna assembly in mobile terminal preferred embodiment of the present invention.
Fig. 2 is the schematic illustration of inventive antenna device first embodiment.
Fig. 3 is equivalent circuit diagram of the inventive antenna device first embodiment under WPC operating mode.
Fig. 4 is equivalent circuit diagram of the inventive antenna device first embodiment under NFC operating mode.
Fig. 5 is the inventive antenna device first embodiment schematic diagram that electromagnetic field is superimposed under NFC operating mode.
Fig. 6 is the schematic illustration of inventive antenna device second embodiment.
Fig. 7 is the equivalent circuit diagram of inventive antenna device second embodiment.
Fig. 8 is the inventive antenna device second embodiment schematic diagram that electromagnetic field is superimposed under NFC operating mode.
Fig. 9 is the schematic illustration of inventive antenna device sixth embodiment.
The reference numerals are as follows: 1, antenna assembly；11, coil；111, coil grading；112, coil grading；11a,
One layer line circle；11b, second layer coil；12, switch unit；13, the first feed point；14, the second feed point；14a, outer end feed point；14b,
Inner end feed point；16, wire jumper；18, wire jumper；19, wire jumper；2, rear shell；3, WPC chip；4, NFC chip.
Specific embodiment
The exemplary embodiment for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that
The present invention can have various variations in different embodiments, neither depart from the scope of the present invention, and theory therein
Bright and diagram inherently is illustrated as being used, rather than to limit the present invention.
The present invention provides a kind of antenna assembly for mobile terminal and the mobile terminal with the antenna assembly.It is this kind of
Mobile terminal can be mobile phone, ITV, POS machine and other wireless payment devices etc.；Antenna assembly provided by the present invention is one kind
Multiplex antenna, it can be achieved that two kinds of functions compatibility, while the optimization in availability.
Mobile terminal embodiment:
The present embodiment, which takes the mobile phone as an example, introduces the set-up mode of antenna assembly 1 on mobile terminals.As shown in Figure 1, antenna
Device 1 designs 2 inner wall of nonmetallic rear shell in mobile phone.In order to optimize the quality factor of antenna assembly 1, it is also can correspond to antenna
ELECTROMAGNETIC REFLECTION device (not shown) is arranged in device 1, to increase antenna in the Net long wave radiation distance in certain direction, ELECTROMAGNETIC REFLECTION dress
It sets and may be, for example, ferrite, setting position is generally located at the inside (i.e. closer to the side of interior of mobile phone) of antenna assembly 1,
That is: antenna assembly 1 is between ELECTROMAGNETIC REFLECTION device and rear shell 2.
For other mobile terminals, the set-up mode of antenna assembly 1 can refer to mobile phone.
In the terminal, according to functional requirement, can configure WPC chip and/or FM chip and NFC chip and/or
RFID chip, antenna assembly 1 are then supported these functions.Below by way of several specific embodiments to the knot of antenna assembly 1
Structure and antenna assembly 1 and the connection type of functional chip each in mobile terminal describe in detail.
Antenna assembly first embodiment:
Referring to Fig.2, the antenna assembly 1 in the present embodiment realizes WPC function and NFC function as a typical application
Multiplexing.Correspondingly, setting WPC chip 3 and NFC chip 4 are needed, in the terminal to support WPC function and NFC function.
The antenna assembly 1 is designed using single side cabling mode, and the main body of antenna assembly 1 is a coil 11, and the line
Circle 11 is single side coiled wire-wound coil, and 11 cabling of coil is in rectangular coil shape.
The both ends of coil 11 are equipped with the first feed point 13 for being connected to WPC chip 3, wherein the first of 11 inner end of coil
Feed point 13 is drawn by wire jumper 16, then with the first feed point 13 of 11 outer end of coil be respectively electrically connected to WPC chip 3 input terminal and
Output end forms WPC charge loop.
Coil 11 is equipped with a switch unit 12, and coil 11 is divided into two concentric coil gradings 111,112,
In, coil grading 111 is located at the periphery of coil grading 112.Due to coil 11 be single side coiled wire-wound coil, two coil grading 111,
112 are in the same plane, and direction of winding is identical.When switch unit 12 is connected, two coil gradings 111,112 are connected
As entirety；When switch unit 12 disconnects, two coil gradings 111,112 are electrically isolated from each other.
Two second feed points 14 for being connected to NFC chip 4 are respectively provided on two coil gradings 111,112.Coil grading 111
On two second feed points 14 respectively drawn by wire jumper 18, part of the coil grading 111 between two second feed points 14 is by structure
At the NFC antenna for supporting NFC function.Two second feed points 14 on coil grading 112 are respectively drawn by a wire jumper 19, the coil
Part of the segmentation 112 between two second feed points 14 also constitutes the NFC antenna for supporting NFC function.This two parts NFC antenna phase is simultaneously
Connection, and it is electrically connected to NFC chip 4.
The working principle of the antenna assembly 1 is as follows:
When antenna assembly 1 works under WPC functional mode, i.e., WPC chip 3 works, switch unit 12 is connected, two coils
Segmentation 111,112 is linked as entirety, and antenna assembly 1 supports WPC function.At this point, the equivalent circuit diagram of antenna assembly 1 as shown in figure 3,
Coil 11 between two first feed points 13 constitutes complete closed circuit by wire jumper 16 and WPC chip 3.NFC function then passes through
Relevant measure is isolated in mobile terminal, and the second feed point 14 on coil 11 does not work.
In the present embodiment, since two first feed points 13 are located at the outer end endpoint and inner end endpoint of coil 11, at this point,
Entire coil 11 constitutes the charge coil of WPC.In order to guarantee the charging current and charge efficiency of WPC, the sectional area of coil 11
Increase as far as possible under conditions of designing allows with cabling area, cabling can use copper wire, FPC (Flexible Printed
Circuit, flexible circuit board) etc. coilings form.
When antenna assembly 1 works under NFC function mode, i.e., NFC chip 4 works, switch unit 12 is disconnected, two coils
Segmentation 111,112 is mutually isolated, and antenna assembly 1 supports NFC function.At this point, the equivalent circuit diagram of antenna assembly 1 as shown in figure 4,
Part in two coil gradings 111,112 between two second feed points 14 respectively constitutes NFC antenna, the isolation of switch unit 12 two
The working signal of NFC antenna does not interfere with each other the work of two NFC antennas.
Using the view direction of Fig. 4 as reference, the second feed point 14 on two coil gradings 111,112 close to coil outer end is claimed
For outer end feed point, and it is labeled as 14a, the second feed point 14 close to coil inner end is known as inner end feed point, and is labeled as 14b.Two lines
The outer end feed point 14a of circle segmentation 111,112 passes through the output end that wire jumper 18,19 is connected to NFC chip 4, two coil gradings respectively
111,112 inner end feed point 14b passes through the input terminal that wire jumper 18,19 is connected to NFC chip 4 respectively, so that by two coil gradings
111, the two NFC antenna parallel connections access NFC chip 4 respectively constituted on 112.It should be noted that the two of coil grading 111,112
The connection of second feed point 14 and 4 input terminal output end of NFC chip is not limited to diagramatic way, and practical connection can be according to required work
Depending on current direction.
At work, the current direction in two NFC antennas is identical, is side counterclockwise using Fig. 4 view direction as reference
To, generated electromagnetism field direction also will be identical in two NFC antennas, be it is outside perpendicular to paper, the magnetic field of two NFC antennas is strong
It is overlapped mutually.
Fig. 5 illustrates the superposition situation of the electromagnetic field of two NFC antennas, and two NFC antennas are in the same plane, in parallel with one heart
Setting, from same direction, the arrow direction in the coil grading 111,112 where two NFC antennas, figure is the electromagnetic field of the two
Represent the direction of electromagnetic field., it can be achieved that the increase of NFC magnetic flux by way of the magnetic field of two NFC antennas is superimposed by force, thus excellent
Change NFC reading performance.
The single coil structure form of middle NFC compared to the prior art, the antenna assembly of the present embodiment in NFC function,
Two sections of concentric NFC antennas are formed in coil 11, the magnetic field of two sections of NFC antennas is superimposed by force, optimizes NFC performance.Meanwhile two
Section NFC antenna parallel connection is electrically connected to NFC chip 4, reduces resistance, therefore can use bigger electric current at work, accordingly
Ground can increase generated electromagnetic field intensity in NFC antenna, further increase NFC communication performance.
Two NFC antennas self-resonant frequency having the same forms two congenerous radiators, convenient for the matching of NFC chip 4
Design.
Further, two NFC antennas are respectively connected to NFC chip 4 using independent match circuit, realize respective humorous
Vibration reduces the requirement to NFC chip 4.Match circuit one end connects the second feed point 14, and the other end connects NFC chip 4.
In the present embodiment, two parts coil grading 111,112 is cut from coil 11, and be arranged second on it respectively
Feed point 14, to form two NFC antennas in parallel.It is understood that in other embodiments, can also be set on coil 11
It sets more switch units 12 to divide coil 11 for more coil gradings, be respectively set on all or part of coil grading
Second feed point 14 forms NFC antenna, and multiple NFC antennas are arranged in parallel and operating current direction is identical and realize the strong phase in magnetic field
Superposition.Adaptively these NFC antennas are matched at 4 end of NFC chip.
On coil 11, switch unit 12 be used as isolated location, to the coil grading 111,112 where two NFC antennas into
It has gone and has been effectively isolated, so that improving use reliability crosstalk will not be generated under NFC operating mode between two NFC antennas.This is opened
Closing unit 12 can be active switch or other switches, and in addition switch unit 12 also can be replaced bandstop filter, band resistance filter
The inhibition frequency range of wave device covers the working frequency range of the working signal of NFC chip, makes coil under NFC operating mode equally to realize
It is electrically isolated between segmentation, and then makes to be electrically connected between coil grading under WPC operating mode.When need to be arranged in coil 11 it is multiple every
When from unit, these devices can also be used in mixed way.
The antenna assembly 1 of the present embodiment is on the basis of WPC and NFC shares cabling, also particularly to logical using electromagnetic field
The NFC function of letter is optimized, and efficiently solves the problems, such as that electromagnetic field communication performance is bad in the prior art.
For RFID (Radio Frequency Identification, the less radio-frequency communicated also with electromagnetic field
Identification) function, the antenna assembly 1 is equally applicable, realizes the multiplexing of WPC function and RFID function, and can be compared to existing skill
Art improves radio communication performance.At this point, in the terminal, NFC chip 4 is replaced with RFID chip, in RFID function operation
Under mode, two communication antenna 11a, 12b of antenna assembly 1 will be used as RFID antenna.
In addition, in the terminal, WPC chip 3 also can be replaced FM (Frequency Modulation, frequency modulation broadcasting)
Chip, antenna assembly 1 realize the multiplexing of FM function and NFC function (or RFID function), and under FM function operating mode, it is traditional thread binding
Setting 1 coil 11 will use as FM antenna.
Antenna assembly second embodiment:
Refering to Fig. 6 and Fig. 7, the difference of the antenna assembly and first embodiment antenna assembly of the present embodiment is: this implementation
In example, coil 11 is the double-deck coiled wire-wound coil, is separately positioned on coil 11 by the coil grading that switch unit 12 is divided into
First layer and the second layer.For the ease of mutually distinguishing with first embodiment, in the present embodiment, two coil gradings are referred to as first
Layer line circle 11a and second layer coil 11b.
First layer coil 11a and second layer coil 11b are stacked, and the view field of the two is overlapped.
The interior endpoint of first layer coil 11a is connected with the interior endpoint of second layer coil 11b by switch unit 12, to make
Obtaining two layers of coil can be interconnected or be electrically isolated from each other.
First layer coil 11a and second layer coil 11b, should respectively at being equipped with the first feed point 13 at respective the outer end point
Two first feed points 13 connect the input terminal and output end of WPC chip 3 by wire jumper 16 respectively, and form WPC charge loop.
Two second feed points 14 are respectively arranged on first layer coil 11a and second layer coil 11b, first layer coil 11a's
Two second feed points 14 respectively by wire jumper 18 connect NFC chip 4 input terminal and output end, the two second of second layer coil 11b
Feed point 14 connects the input terminal and output end of NFC chip 4 by wire jumper 19 respectively.First layer coil 11a and second layer coil 11b
Respectively the part between two second feed points 14 constitutes NFC antenna, and two NFC antennas are in parallel.
In the present embodiment, the direction of winding of first layer coil 11a and second layer coil 11b are on the contrary, with the view direction of Fig. 7
For reference, first layer coil 11a anti-clockwise windings, and second layer coil 11b coiling clockwise.
The second feed point 14 that will be close to each layer line circle the outer end point is known as outer end feed point 14a, close to endpoint in each layer line circle
Second feed point 14 is known as inner end feed point 14b.
The outer end feed point 14a of the inner end feed point 14b and second layer coil 11b of first layer coil 11a are connected and are connected to NFC
The inner end feed point 14b of the input terminal of chip 4, the outer end feed point 14a and second layer coil 11b of first layer coil 11a is connected and connects
It is connected to the output end of NFC chip 4, so that NFC antenna parallel connection access NFC chip 4 is formed by two layers coil 11a, 11b,
And two operating currents in NFC antenna is in the counterclockwise direction.The connection of second feed point 14 and 4 input terminal output end of NFC chip
Relationship is also not limited to diagramatic way, specifically depending on required operating current direction.
The working principle of the present embodiment antenna assembly 1 is as follows:
When antenna assembly 1 works under WPC functional mode, first layer coil 11a and the second layer is connected in switch unit 12
Coil 11b, antenna assembly 1 support WPC function.At this point, from the first feed point 13 on first layer coil 11a to first layer coil
The interior endpoint of 11a, through switch unit 12 to the interior endpoint of second layer coil 11b, then to the first feed point on second layer coil 11b
WPC charge coil is integrally formed between 13.Two first feed points 13 constitute complete closed circuit with WPC chip 3.NFC function
It is isolated by measure relevant in mobile terminal.
When antenna assembly 1 works under NFC function mode, switch unit 12 is disconnected, first layer coil 11a and the second layer
Coil 11b is mutually isolated, and antenna assembly 1 supports NFC function.It is located at two second in first layer coil 11a and second layer coil 11b
Part between feed point 14 respectively constitutes NFC antenna, and switch unit 12 is isolated the working signal of two NFC antennas, makes two NFC antennas
Work do not interfere with each other.
By Fig. 7 view direction, the operating current of two NFC antennas is all counterclockwise electromagnetic field side caused by the two
To also will be identical.As shown in figure 8, electromagnetic field caused by the two is successively worn from same direction since two NFC antennas are stacked
Second layer coil 11b and first layer coil 11a are crossed, arrow direction is to represent the direction of electromagnetic field in figure.Pass through two NFC antennas
Form that magnetic field is superimposed by force, it can be achieved that NFC magnetic flux increase, to optimize NFC reading performance.
The other structures of the present embodiment are referring to antenna assembly first embodiment.
Antenna assembly 3rd embodiment:
The difference of the antenna assembly and second embodiment antenna assembly of the present embodiment are as follows: in the present embodiment, first layer coil
11a is connected with the respective the outer end point of second layer coil 11b by switch unit 12, and correspondingly, two layers of coil is in close to respective
One first feed point 13 is respectively set at interior endpoint.
The other structures of the present embodiment are referring to antenna assembly second embodiment.The incomplete structure figure of the present embodiment antenna assembly
Show.
Antenna assembly fourth embodiment:
The difference of the antenna assembly and second embodiment antenna assembly of the present embodiment are as follows: in the present embodiment, first layer coil
11a is identical with the direction of winding of second layer coil 11b.At this point, by the interior endpoint of first layer coil 11a and second layer coil 11b
The outer end point be connected by switch unit 12, in the first feed point 13 of setting, the second layer at the outer end point first layer coil 11a on
In the first feed point 13 of setting at interior endpoint on coil 11b.Close to respectively on first layer coil 11a and second layer coil 11b
Second feed point 14 of interior endpoint setting is connected to the input terminal or output end of NFC chip 4, first layer coil 11a and second together
The second feed point 14 on layer line circle 11b close to the setting of respective the outer end point is connected to the output end or input terminal of NFC chip 4 together.
At this point, similarly may be implemented under NFC operating mode, two layers of NFC antenna is in parallel, and operating current direction is identical.
The other structures of the present embodiment are referring to antenna assembly second embodiment.The incomplete structure figure of the present embodiment antenna assembly
Show.
The 5th embodiment of antenna assembly:
The difference of the antenna assembly of the present embodiment and second embodiment antenna assembly are as follows: the number of plies of coil 11 three layers with
On, each layer line circle is stacked, and is connected by switch unit 12 between adjacent two layers coil, and top layer and lowest level are located at
Two layers of coil on one first feed point 13 is respectively set to connect WPC chip 3.
The direction of winding of every adjacent two layers coil can be identical, at this time the connection type of each layer line circle and switch unit 12 with
And on each layer line circle the second feed point 14 and NFC chip 4 connection type referring to antenna assembly second embodiment and antenna assembly the
Three embodiments.
The direction of winding of every adjacent two layers coil may be reversed, at this time the connection type of each layer line circle and switch unit 12
And on each layer line circle the second feed point 14 with the connection type of NFC chip 4 referring to antenna assembly fourth embodiment.
In the present embodiment, it can be respectively provided with two second feed points 14 on each layer line circle and form NFC antenna, can also only exist
Two second feed points 14 are set on the layer line circle of part, wherein the second feed point 14 is arranged at least two layers of coil.It will be on each layer line circle
Two second feed points 14 be reasonably connected to NFC chip 4 referring to the mode of antenna assembly second embodiment to fourth embodiment
Input terminal output end makes each layer line circle be formed by NFC antenna and is in parallel, and the operating current direction in each NFC antenna is identical.
Under NFC operating mode, the magnetic field of each layer NFC antenna is overlapped mutually by force, optimizes NFC communication performance.
The incomplete structure of the present embodiment antenna assembly illustrates.
Antenna assembly sixth embodiment:
Refering to Fig. 9, the difference of the present embodiment and second embodiment antenna assembly is: the antenna assembly of the present embodiment is without opening
Unit is closed, is not electrically connected between the first layer coil 11a and second layer coil 11b of coil 11, the two is mutually isolated.
Two first feed points 13 and two second feed points 14 are equipped on first layer coil 11a and second layer coil 11b, and respectively
It is correspondingly connected to WPC chip 3 and NFC chip 4.
In the present embodiment, first layer coil 11a and second layer coil 11b can support NFC function and WPC function,
Under different working modes, first layer coil 11a and second layer coil 11b are respectively formed NFC antenna or WPC charge coil, and institute's structure
At two NFC antennas or two WPC charge coils be in parallel, operating current direction is identical.In the embodiment, in NFC operating mode
Under, the magnetic field strength of two layers of coil can be still superimposed, to optimize NFC communication performance.
Although describing the present invention with reference to several exemplary embodiments, it is to be understood that, term used be explanation and
Term exemplary, and not restrictive.Due to the present invention can be embodied in a variety of forms without departing from invention spirit or
Essence, it should therefore be appreciated that above embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
The whole change and modification widely explained, therefore fallen into claim or its equivalent scope in spirit and scope all should be with
Attached claim is covered.
Claims (10)
1. a kind of antenna assembly, which is characterized in that the coil including the setting of at least two-layer laminate；Use is respectively equipped on the coil
In two second feed points for being electrically connected to NFC chip or RFID chip, part of each coil between two second feed points is constituted NFC days
Line or RFID antenna, the NFC antenna or RFID antenna constituted on each layer line circle are in parallel；Divide on two coils on surface layer
It She You not be for being electrically connected to the first feed point of WPC chip or FM chip；
Be connected between adjacent two layers coil by isolated location, the isolated location be configured as being isolated the NFC chip or
The working signal of RFID chip.
2. antenna assembly according to claim 1, which is characterized in that
The isolated location is bandstop filter, and the inhibition frequency range of the bandstop filter covers the NFC chip or RFID core
The working frequency range of the working signal of piece.
3. antenna assembly according to claim 1, which is characterized in that
The isolated location is switch unit, and the switch unit is configured as leading in the WPC chip or FM chip operation
Lead to the adjacent two layers coil, when the NFC chip or RFID chip work, disconnects the adjacent two layers coil.
4. antenna assembly according to claim 1, which is characterized in that the view field of each layer coil is overlapped.
5. antenna assembly according to claim 1-4, which is characterized in that
The adjacent two layers coil is respectively first layer coil and second layer coil, the first layer coil and second layer line
The direction of winding of circle is opposite；
The first end of the isolated location is connected with interior endpoint/the outer end point of the first layer coil, and the of the isolated location
Two ends are connected with interior endpoint/the outer end point of the second layer coil.
6. antenna assembly according to claim 5, which is characterized in that
The first layer coil and the second layer coil are respectively set there are two the second feed point；
The first layer coil is arranged close to the second feed point of interior endpoint setting and the close the outer end point of the second layer coil
The second feed point be connected；Second feed point of the close the outer end point setting of the first layer coil is close with the second layer coil
Second feed point of interior endpoint setting is connected.
7. antenna assembly according to claim 1-4, which is characterized in that
The adjacent two layers coil is respectively first layer coil and second layer coil, the first layer coil and second layer line
The direction of winding of circle is identical；
The first end of the isolated location is connected with the interior endpoint of the first layer coil, the second end of the isolated location and institute
The outer end point for stating second layer coil is connected.
8. antenna assembly according to claim 7, which is characterized in that
The first layer coil and the second layer coil are respectively set there are two the second feed point；
The first layer coil is arranged close to the second feed point of interior endpoint setting and the close interior endpoint of the second layer coil
The second feed point be connected；Second feed point of the close the outer end point setting of the first layer coil is close with the second layer coil
Second feed point of the outer end point setting is connected.
9. a kind of mobile terminal, it is characterised in that: include: WPC chip and/or FM chip, NFC chip and/or RFID chip, day
Line apparatus, rear shell；
The antenna assembly be such as the described in any item antenna assemblies of claim 1-8, the antenna assembly be set to it is described after
Shell inner wall.
10. mobile terminal according to claim 9, which is characterized in that it further include match circuit, the of the match circuit
One end is connect with second feed point, and the second end of the match circuit is connect with the NFC chip or RFID chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752460.9A CN106329114B (en) | 2016-08-29 | 2016-08-29 | Antenna assembly and mobile terminal with the antenna assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610752460.9A CN106329114B (en) | 2016-08-29 | 2016-08-29 | Antenna assembly and mobile terminal with the antenna assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329114A CN106329114A (en) | 2017-01-11 |
| CN106329114B true CN106329114B (en) | 2019-04-30 |
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| CN201610752460.9A Active CN106329114B (en) | 2016-08-29 | 2016-08-29 | Antenna assembly and mobile terminal with the antenna assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9941937B1 (en) * | 2017-04-10 | 2018-04-10 | Nxp B.V. | Near-field electromagnetic induction (NFEMI) antenna |
| CN107565216A (en) | 2017-08-29 | 2018-01-09 | 广州三星通信技术研究有限公司 | The shell and electronic equipment of electronic equipment |
| CN109818426B (en) * | 2017-11-20 | 2022-08-16 | 鹏鼎控股(深圳)股份有限公司 | Wireless charging device and manufacturing method thereof |
| CN108172973B (en) * | 2018-01-02 | 2020-06-23 | 联想(北京)有限公司 | Electronic equipment and antenna processing method |
| CN109103585A (en) * | 2018-07-10 | 2018-12-28 | 深圳市科迪诺电子技术有限公司 | A kind of NFC and WPC twin coil antenna and production technology |
| CN112350053B (en) * | 2019-08-09 | 2023-09-15 | 富泰华工业（深圳）有限公司 | Antenna structure and wireless communication device with same |
| CN111541038B (en) * | 2020-04-29 | 2023-05-23 | 维沃移动通信有限公司 | NFC antenna circuit structure, electronic equipment and method for enhancing magnetic field intensity |
| CN114530694B (en) * | 2022-04-24 | 2022-07-05 | 云谷（固安）科技有限公司 | Wireless communication structure, display panel and wireless communication device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101689698A (en) * | 2007-06-29 | 2010-03-31 | 诺基亚公司 | Improvements in or relating to an electronic apparatus and associated methods |
| CN103199333A (en) * | 2013-03-27 | 2013-07-10 | 上海安费诺永亿通讯电子有限公司 | Antenna module supporting near field communication (NFC) and wireless power consortium (WPC) multiplexing |
| CN103515698A (en) * | 2012-06-28 | 2014-01-15 | 比亚迪股份有限公司 | NFC (Near Field Communication) antenna and electronic equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110068987A1 (en) * | 2009-08-05 | 2011-03-24 | New Jersey Microsystems. Inc | Multiband RFID tag |
| JP5468356B2 (en) * | 2009-10-28 | 2014-04-09 | 京セラ株式会社 | Mobile device |
-
2016
- 2016-08-29 CN CN201610752460.9A patent/CN106329114B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101689698A (en) * | 2007-06-29 | 2010-03-31 | 诺基亚公司 | Improvements in or relating to an electronic apparatus and associated methods |
| CN103515698A (en) * | 2012-06-28 | 2014-01-15 | 比亚迪股份有限公司 | NFC (Near Field Communication) antenna and electronic equipment |
| CN103199333A (en) * | 2013-03-27 | 2013-07-10 | 上海安费诺永亿通讯电子有限公司 | Antenna module supporting near field communication (NFC) and wireless power consortium (WPC) multiplexing |
Non-Patent Citations (1)
| Title |
|---|
| Design of Antennas and Circuit for Integrating RFID and Wireless Charging Systems;Chi-Fang Huang等;《The 8th European Conference on Antennas and Propagation (EuCAP 2014)》;20140411;全文 |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |