CN206673114U - Near-field communication aerial structure and housing, electric terminal with the antenna structure - Google Patents
Near-field communication aerial structure and housing, electric terminal with the antenna structure Download PDFInfo
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- CN206673114U CN206673114U CN201720474200.XU CN201720474200U CN206673114U CN 206673114 U CN206673114 U CN 206673114U CN 201720474200 U CN201720474200 U CN 201720474200U CN 206673114 U CN206673114 U CN 206673114U
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- field communication
- conductive body
- distributing point
- pass filter
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Abstract
The application provides a kind of near-field communication aerial structure and housing, electric terminal with the antenna structure, the near-field communication aerial structure includes the first conductive body, the second conductive body, slit structure, the first distributing point and the second distributing point, wherein, the slit structure separates the first conductive body and the second conductive body between the first conductive body and the second conductive body, first distributing point is arranged in the first conductive body, and the second distributing point is arranged in the second conductive body.Single NFC antenna structure is eliminated using above-mentioned NFC antenna structure, cost reduces, simple in construction.
Description
Technical field
The application is related to a kind of antenna structure, more particularly, is related to a kind of near-field communication NFC antenna structure and has
Housing, the electric terminal of the antenna structure.
Background technology
With the continuous development of electronic communication, electric terminal possesses increasingly abundanter function, supports electric terminal
Realize that the antenna of various data transfers and communication function is also more and more, near-field communication aerial be realize near-field communication (NFC,
Near-Field Communications) antenna structure.
The mode of NFC antenna is loaded inside currently used electric terminal, is all to attach NFC antenna together with its ferrite
On the housing of electric terminal, for the electric terminal of metal shell, typically using following set-up modes：
First, vertical slit (perps 1)+NFC coil antenna (coil antenna 2) are used among metal shell
Scheme, i.e., a perps is opened below the gap 3 of metal shell, coil antenna 2 is attached to the position of perps 1 so that NFC signals lead to
Perps 1 is crossed to radiate (as shown in Figure 1).
But there is following defect in above-mentioned set-up mode：
1st, a perps is opened on metal shell, is influenceed attractive in appearance；
2nd, it is high using the coil antenna of customization, Material Cost；
3rd, NFC coil antennas are mounted on metal shell, and when carrying out the attachment of NFC coil antennas, precision is not easy management and control, easily
NFC frequency shift (FS)s are caused, influence NFC performances.
2nd, will be moved on NFC coil antennas 2 at the original gap 3 of metal shell, NFC signals are radiated by this gap 3
Go out (as shown in Figure 2).Although this setup may not necessarily set perps on metal shell, NFC coil antennas and
Coupling can be formed between primary antenna, so as to influence the performance of primary antenna.
Utility model content
The purpose of the application is to propose a kind of near-field communication aerial structure and housing, electronics with the antenna structure
Terminal, without setting up NFC antenna coil, and it can effectively avoid the influence that intercouples between NFC signals and main signal.
The one side of the application exemplary embodiment provides a kind of near-field communication (NFC) antenna structure, the near-field communication
Antenna structure includes the first conductive body, the second conductive body, slit structure, the first distributing point and the second distributing point, wherein, institute
Slit structure is stated to separate the first conductive body and the second conductive body between the first conductive body and the second conductive body,
First distributing point is arranged in the first conductive body, and the second distributing point is arranged in the second conductive body.
Alternatively, the near-field communication aerial structure can also include conduction connecting structure, and the conduction connecting structure can be
The first conductive body direction relative with the second conductive body bridges the first conductive body, the slit structure, the second conduction originally
Body.
Alternatively, the first distributing point may be arranged at close to the slit structure in the first conductive body, and be led away from described
The opening position of electric connection structure, the second distributing point may be arranged at close to the slit structure in the second conductive body, and away from institute
State the opening position of conduction connecting structure.
Alternatively, the first conductive body can be connected near field communication circuitry module by the first distributing point, and the second conduction is originally
Body can be connected to the near field communication circuitry module by the second distributing point.
Alternatively, the first distributing point and the second distributing point can be by the near field communication circuitry module and main signal circuit modules
Share.
Alternatively, the near-field communication aerial structure can also include the first low pass filter and the second low pass filter, its
In, one end of the first low pass filter is connected to the first distributing point, and the other end of the first low pass filter is connected to the near field
Communication circuit module, one end of the second low pass filter are connected to the second distributing point, the other end connection of the second low pass filter
To the near field communication circuitry module.
Alternatively, the near-field communication aerial structure can also include the first high-pass filter and the second high-pass filter, its
In, one end of the first high-pass filter is connected to the first distributing point, and the other end of the first high-pass filter is connected to the main letter
Number circuit module, one end of the second high-pass filter are connected to the second distributing point, and the other end of the second high-pass filter is connected to
The main signal circuit module.
Alternatively, the first conductive body, slit structure, the second conductive body are formed as the housing of electric terminal.
Alternatively, the near field communication circuitry module and the main signal circuit module may be provided at the electric terminal
On mainboard.
Alternatively, the slit structure may include in the first conductive body direction phase alternating layers relative with the second conductive body
Folded at least one conductive layer and at least one non-conductive layer.
The another aspect of the application exemplary embodiment provides a kind of housing, it is characterised in that the housing includes above-mentioned
Near-field communication aerial structure.
The another further aspect of the application exemplary embodiment provides a kind of electric terminal, it is characterised in that the electric terminal
Including above-mentioned housing.
According to the near-field communication aerial structure of the application exemplary embodiment and with the antenna structure housing, electronics
Terminal, single NFC antenna structure is eliminated, cost reduces, simple in construction.
Brief description of the drawings
By the detailed description carried out below in conjunction with the accompanying drawings, above and other objects, features and advantages of the application will
Become more fully apparent, wherein：
Fig. 1 shows the first exemplary plot of existing NFC antenna structure；
Fig. 2 shows the second exemplary plot of existing NFC antenna structure；
Fig. 3 shows the schematic diagram of the near-field communication aerial structure according to the application exemplary embodiment.
Embodiment
Embodiments herein is described in detail next, with reference to accompanying drawing.
Fig. 3 shows the schematic diagram of the near-field communication aerial structure according to the application exemplary embodiment.
As shown in figure 3, the first conductive body is included according to the near-field communication aerial structure of the application exemplary embodiment
100th, the second conductive body 200, slit structure 300, conduction connecting structure 400, the first distributing point A and the second distributing point B.Below
Reference picture 3 introduces the composition of the antenna structure of the application and operation principle.
Particularly, one in the first conductive body 100 and the second conductive body 200 may make up NFC antenna structure
Radiating element, another in the first conductive body 100 and the second conductive body 200 may make up the ground connection member of NFC antenna structure
Part, it is radiating element with the first conductive body 100 in the exemplary embodiment of the application, the second conductive body 200 is ground connection
It is introduced exemplified by element.
As an example, the first conductive body 100 and the second conductive body 200 can be made up of identical conductive material, preferably
Ground, the conductive material may include metal.
Slit structure 300 is between the first conductive body 100 and the second conductive body 200 by the first conductive body 100
Separated with the second conductive body 200, slit structure 300 may include in the first conductive body 100 and the phase of the second conductive body 200
To direction at least one conductive layer 300a for being layered on top of each other and at least one non-conductive layer 300b.Here, the first conductive body
100 directions relative with the second conductive body 200 can refer to from the direction of the conductive body 200 of the first conductive body 100 to the second or
From the direction of the conductive body 100 of the second conductive body 200 to the first, in other words, slit structure 300 include described at least one
Individual conductive layer 300a and at least one non-conductive layer 300b can be along from the conductive body 200 of the first conductive body 100 to the second
Direction (or direction from the conductive body 100 of the second conductive body 200 to the first) be alternately arranged.
Preferably, each conductive layer 300a thickness can be identical, it is preferable that the thickness of each non-conductive layer can be 0.03mm
~0.15mm.Each non-conductive layer 300b thickness can be identical, and conductive layer 300a thickness can with non-conductive layer 300b thickness
It is identical also can be different, here, thickness can refer to a conductive layer 300a or a non-conductive layer 300b along from the first conductive body 100
Length to the direction of the second conductive body 200.
Preferably, the making material of the conductive layer 300a in slit structure 300 can be led with the first conductive body 100, second
The making material of electric body 200 is identical, for example, can be that metal is made, as an example, non-conductive layer 300b may include plastics.
As an example, when slit structure 300 includes an a conductive layer 300a and non-conductive layer 300b, equivalent to
One conductive body 100 and the second conductive body 200 are separated by a gap (non-conductive layer 300b), now, can be according to reality
Situation suitably increases non-conductive layer 300b thickness, to cause NFC signals to be gone out by the gap radiation.
Conduction connecting structure 400 is led in the direction bridging first relative with the second conductive body 200 of the first conductive body 100
Electric body 100, slit structure 300, the second conductive body 200.That is, the first conductive body 100 is by being conductively connected knot
Structure 400 is connected to the second conductive body 200, and conduction connecting structure 400 also at least one is led with described in slit structure 300
Electric layer 300a connections.
In one example, conduction connecting structure 400 can be located at the inner surface of slit structure 300.
Particularly, slit structure 300 may include two surfaces (that is, inner surface and outer surface) being disposed opposite to each other,
As an example, outer surface can refer to exposed side, i.e. the surface that user can directly contact, inner surface can refer to
The side that user can not directly contact.In this example, conduction connecting structure 400 can be convexly equipped in the inner side of slit structure 300
On surface.For example, process conduction connecting structure in the inner surface of slit structure 300 using existing various processing methods
400。
In another example, conduction connecting structure 400 can be located at the bottom of slit structure 300.
Particularly, the outer surface (side that user touches) of slit structure 300 can be defined as slit structure 300
Top, the inner surface (side that user does not reach) of slit structure 300 is defined as the bottom of slit structure 300, at this
In example, the bottom that conduction connecting structure 400 is located at slit structure 300 can instruct electric connection structure 400 to be arranged in slit structure
On 300 inner surface, but it is non-bulging in inner surface.
Here, conduction connecting structure 400 is from the direction of 100 to the second conductive body of the first conductive body 200 (that is, longitudinal direction)
On length be more than the length of slit structure 300 in the vertical, it is preferable that conduction connecting structure 400 can be with the first conductive body
100 making material is identical.
Alternatively, in above-mentioned NFC antenna structure the first conductive body 100 would generally set it is wider (that is, along being led from first
Length on the electric direction of the conductive body of body 100 to the second 200 is larger), here, the first conductive body 100 is used as radiating element,
NFC signals are radiate by radiating element, if the first conductive body 100 is wider, NFC signal codes imported into first and led
During electric body 100, most of electric current can be evenly distributed in the first conductive body 100, i.e. the first conductive body 100 equivalent to
Ground, the electric current of change is seldom, can not form resonance, and electric current can not be converted into electromagnetic wave and radiate.
Connected between first conductive body 100 and the second conductive body 200 by conduction connecting structure 400, in order to as far as possible
Extend the path of variable-current, to strengthen the radiation of NFC antenna, may be selected conductive in the first conductive body 100 and second respectively
First distributing point A and the second distributing point B are set on body 200.
Preferably, the first distributing point A may be arranged at close to slit structure 300 in the first conductive body 100, and away from conductive
The opening position of attachment structure 400, the second distributing point B are arranged in the second conductive body 200 close slit structure 300, and remote
The opening position of conduction connecting structure 400, to form longer current path as far as possible, strengthen the radiation of antenna.However, this practicality is new
Type not limited to this, the first distributing point A can be also arranged in the second conductive body 200, it is conductive that the second distributing point B is arranged on first
On body 100.Here, under conditions of the permission of existing processing technology, the first distributing point A can be arranged in the first conductive body
Opening position on 100 with slit structure 300 apart from minimum and with conduction connecting structure 400 apart from maximum, similarly, the second feed
Point B may be arranged in the second conductive body 200 with slit structure 300 apart from minimum and with conduction connecting structure 400 apart from maximum
Opening position.
First conductive body 100 can be connected near field communication circuitry module 500 by the first distributing point A, and the second conduction is originally
Body 200 can be connected near field communication circuitry module 500 by the second distributing point B.
First distributing point A and the second distributing point B are total to by near field communication circuitry module 500 and main signal circuit module 600
With.In the case, the first conductive body 100 is also connected to main signal circuit module 600 by the first distributing point A, and second leads
Electric body 200 is also connected to main signal circuit module 600 by the second distributing point B.For example, can be by near field communication circuit module
500 and main signal circuit module 600 be arranged on predetermined carrier, as an example, near field communication circuitry module 500 and main signal electricity
Road module 600 may be provided on the mainboard of electric terminal.
Preferably, LPF can be set between near field communication circuitry module 500 and main signal circuit module 600 respectively
Device and high-pass filter, so that two kinds of signals are mutually isolated, avoid influencing each other between both signals.
For example, the first low pass filter can also be included according to the near-field communication aerial structure of the application exemplary embodiment
101st, the second low pass filter 102, the first high-pass filter 201 and the second high-pass filter 202.Preferably as example,
One low pass filter 101 and the second low pass filter 102 can be inductance (for example, 50-100nH), the He of the first high-pass filter 201
Second high-pass filter 202 can be electric capacity (for example, 30-100pH), but the utility model not limited to this, can also use other
The low pass filter and high-pass filter of type.
Specifically, one end of the first low pass filter 101 is connected to the first distributing point A, the first low pass filter 101 it is another
One end is connected near field communication circuitry module 500, and one end of the second low pass filter 102 is connected to the second distributing point B, and second is low
The other end of bandpass filter 102 is connected near field communication circuitry module 500.Now, near field communication circuitry module 500 can be via
The low pass filter 101 of the distributing point A of one conductive body 100 → the first → first receives NFC signals, near field communication circuitry module 500
Caused NFC signals → the second conductive body 200 → can be conductively connected via the distributing point B of the second low pass filter 102 → the second
The conductive body 100 of structure 400 → the first is launched.Here, near field communication circuitry module 500 can be to be arranged on mainboard
NFC chip, to realize transmitting and reception to NFC signals.
One end of first high-pass filter 201 is connected to the first distributing point A, and the other end of the first high-pass filter 201 connects
Main signal circuit module 600 is connected to, one end of the second high-pass filter 202 is connected to the second distributing point B, the second high-pass filter
202 other end is connected to main signal circuit module 600.Now, main signal circuit module 600 can be via the first conductive body
The high-pass filter 201 of 100 → the first distributing point A → first receives main signal, and main signal caused by main signal circuit module 600 can
Led via the 200 → conduction connecting structure of conductive body 400 → the first of the distributing point B of the second high-pass filter 202 → the second → second
Electric body 100 is launched.As an example, main signal may include at least one of signals below：GSM、CDMA、TD-S、
WCDMA、LTE、GPS、WIFI.Here, main signal circuit module 600 can be chip corresponding with above-mentioned main signal, with realization pair
The transmitting and reception of main signal.
In one example, the first conductive body 100, the second conductive body 200, slit structure 300 may make up electronics end
At least a portion of the housing at end, it is preferable that the first conductive body 100, the second conductive body 200, slit structure 300 and conduction
Attachment structure 400 may make up at least a portion of housing.For example, the first conductive body 100, slit structure 300, second are conductive originally
Body 200 and conduction connecting structure 400 are formed as the housing of electric terminal, the housing be, for example, electric terminal shell on the back (after
Lid).As an example, the electric terminal can be smart mobile phone, it is Intelligent worn device, tablet personal computer, notebook computer, vehicle-mounted
The equipment that equipment, Web TV, electronic reader, remote control etc. have communication function.
The another exemplary embodiment of the application can provide a kind of electric terminal, and the electric terminal may include to be described above
Housing.
Near-field communication aerial structure using the application exemplary embodiment and housing, the electronics with the antenna structure
Terminal, it is not necessary to single NFC coil antennas are set, not only save Material Cost, also reduce NFC coil antennas attachment work
Sequence, the error of attachment process is avoided, be easy to volume production index management and control.
In addition, the near-field communication aerial structure using the application exemplary embodiment and the shell with the antenna structure
Body, electric terminal, the transmission of NFC signals is directly realized using the slit structure on the metal shell of electric terminal, without in electricity
Set up and crack on the housing of sub- terminal, improve the outward appearance of electric terminal.
In addition, the near-field communication aerial structure using the application exemplary embodiment and the shell with the antenna structure
Body, electric terminal, also by setting isolation circuit to isolate NFC signals with main signal, it effectively prevent between two kinds of signals
Intercouple influence.
It should be understood that in the exemplary embodiment of the application, the instruction such as term " transverse direction ", " longitudinal direction ", " length ", " width "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description the application and simplification retouched
State, rather than imply or device or element that instruction is signified there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that limitation to the application.
Although the application, those skilled in the art are particularly shown and described with reference to its exemplary embodiment
It should be understood that in the case where not departing from the spirit and scope that claim is limited, form can be carried out to it
With the various changes in details.
Claims (12)
1. a kind of near-field communication (NFC) antenna structure, the near-field communication aerial structure includes the first conductive body, the second conduction
Body, slit structure, the first distributing point and the second distributing point,
Wherein, the slit structure leads the first conductive body and second between the first conductive body and the second conductive body
Electric body separates,
First distributing point is arranged in the first conductive body,
Second distributing point is arranged in the second conductive body.
2. near-field communication aerial structure according to claim 1, it is characterised in that the near-field communication aerial structure is also wrapped
Conduction connecting structure is included, the conduction connecting structure is in the direction bridging first relative with the second conductive body of the first conductive body
Conductive body, the slit structure, the second conductive body.
3. near-field communication aerial structure according to claim 2, it is characterised in that it is conductive that the first distributing point is arranged in first
Close to the slit structure on body, and the opening position away from the conduction connecting structure, the second distributing point are arranged in second and led
Close to the slit structure on electric body, and the opening position away from the conduction connecting structure.
4. near-field communication aerial structure according to claim 1, it is characterised in that the first conductive body passes through the first feed
Point is connected near field communication circuitry module, and the second conductive body is connected to the near field communication circuitry mould by the second distributing point
Block.
5. near-field communication aerial structure according to claim 4, it is characterised in that the first distributing point and the second distributing point quilt
The near field communication circuitry module and main signal circuit module share.
6. near-field communication aerial structure according to claim 5, it is characterised in that the near-field communication aerial structure is also wrapped
The first low pass filter and the second low pass filter are included,
Wherein, one end of the first low pass filter is connected to the first distributing point, and the other end of the first low pass filter is connected to institute
State near field communication circuitry module, one end of the second low pass filter is connected to the second distributing point, the second low pass filter it is another
End is connected to the near field communication circuitry module.
7. near-field communication aerial structure according to claim 5, it is characterised in that the near-field communication aerial structure is also wrapped
The first high-pass filter and the second high-pass filter are included,
Wherein, one end of the first high-pass filter is connected to the first distributing point, and the other end of the first high-pass filter is connected to institute
Main signal circuit module is stated, one end of the second high-pass filter is connected to the second distributing point, the other end of the second high-pass filter
It is connected to the main signal circuit module.
8. near-field communication aerial structure according to claim 5, it is characterised in that the first conductive body, slit structure,
Two conductive bodies are formed as the housing of electric terminal.
9. near-field communication aerial structure according to claim 8, it is characterised in that the near field communication circuitry module and institute
Main signal circuit module is stated to be arranged on the mainboard of the electric terminal.
10. near-field communication aerial structure according to claim 1, it is characterised in that the slit structure is included in first
At least one conductive layer and at least one non-conductive layer that the conductive body direction relative with the second conductive body is layered on top of each other.
11. a kind of housing, it is characterised in that the housing includes the near-field communication aerial knot as described in claim 1-10 is any
Structure.
12. a kind of electric terminal, it is characterised in that the electric terminal includes housing as claimed in claim 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720474200.XU CN206673114U (en) | 2017-04-28 | 2017-04-28 | Near-field communication aerial structure and housing, electric terminal with the antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720474200.XU CN206673114U (en) | 2017-04-28 | 2017-04-28 | Near-field communication aerial structure and housing, electric terminal with the antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206673114U true CN206673114U (en) | 2017-11-24 |
Family
ID=60370778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720474200.XU Active CN206673114U (en) | 2017-04-28 | 2017-04-28 | Near-field communication aerial structure and housing, electric terminal with the antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206673114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020096094A1 (en) * | 2018-11-09 | 2020-05-14 | Samsung Electronics Co., Ltd. | Near field communication antenna structure, housing with the same, and electronic terminal |
-
2017
- 2017-04-28 CN CN201720474200.XU patent/CN206673114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020096094A1 (en) * | 2018-11-09 | 2020-05-14 | Samsung Electronics Co., Ltd. | Near field communication antenna structure, housing with the same, and electronic terminal |
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