CN206059650U - The NFC antenna device of adjustable self-resonant frequency and electronic equipment - Google Patents
The NFC antenna device of adjustable self-resonant frequency and electronic equipment Download PDFInfo
- Publication number
- CN206059650U CN206059650U CN201621081712.1U CN201621081712U CN206059650U CN 206059650 U CN206059650 U CN 206059650U CN 201621081712 U CN201621081712 U CN 201621081712U CN 206059650 U CN206059650 U CN 206059650U
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- CN
- China
- Prior art keywords
- cabling
- resonant frequency
- nfc antenna
- antenna device
- metal routing
- 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.)
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Abstract
This utility model provides a kind of NFC antenna device and electronic equipment of adjustable self-resonant frequency, including metal routing and capacitor device.Metal routing is helical annular cabling etc., and base material can be PCB, FPCB or FPC etc..Capacitor device is connected to metal routing two ends, for adjusting self-resonant frequency.This utility model is had the following advantages compared with conventional NFC antenna：Flexible design, can adjust self-resonant frequency；Walk number of wire turns few, the increase of antenna effective radiation area；Cabling helical annular, radiation field are more uniform；Compatible good, practicality is good, and the scope of application is wider.
Description
Technical field
This utility model is related to NFC antenna, in particular it relates to the NFC antenna device and electronics of adjustable self-resonant frequency set
Standby and method.
Background technology
Undoubtedly, application of the NFC technology in electronic product in recent years is more and more extensive, and NFC applications are fast
Speed development.
But while NFC applications are fast-developing, some problems are also occurred in that, inter-compatibility is inadequate such as between NFC products,
The self-resonant frequency deviation for being embodied in antenna assembly is too big., in 13.56MHz or so, frequency is too high for General N FC operating frequency
Or it is too low can all cause NFC performances impacted, for example cause read-write mode Card Reader distance decline, snap gauge simulation models brush POS
Distance declines or sensitivity step-down.
In theory, antenna assembly can adjust self-resonant frequency by adjusting number of wire turns, but it is excessive to walk number of wire turns
Antenna effective radiation area can be caused to reduce, radiation effect is bad；Walk number of wire turns very few, quality factor q value is unsatisfactory for requiring,
NFC performances equally can be impacted, adds general electronic products antenna assembly limited space, so being adjusted by adjusting number of wire turns
Self-resonant frequency this method is difficult practicality.
Utility model content
For defect of the prior art, the purpose of this utility model is to provide NFC days of a kind of adjustable self-resonant frequency
Line apparatus and electronic equipment and method.
The NFC antenna device of a kind of adjustable self-resonant frequency provided according to this utility model, including：Metal routing, electricity
Capacitance device；Capacitor device is used for the self-resonant frequency for adjusting antenna assembly；
Some capacitive means are connected between one end of metal routing and the other end of metal routing.
Preferably, multiple capacitive means are connected in parallel between one end of metal routing and the other end of metal routing.
Preferably, including base material；Metal routing includes the first cabling, the second cabling；
One end of first cabling connects one end of capacitive means, and the other end of the first cabling connects one end of the second cabling,
The other end of the second cabling connects the other end of capacitive means；
First cabling, the second cabling are the wiring on base material.
Preferably, the first cabling is symmetrical arranged with the second cabling.
Preferably, the first cabling is by the one end of itself, inwardly coiling extends to the other end of itself；Second cabling by
The one end of itself starts, and outwards coiling extends to the other end of itself.
Preferably, it is described coiling refer to spiral wound or rectangular disk around.
Preferably, exist at juxtaposition between the first cabling, the second cabling.
Preferably, the first cabling, the second cabling extension coil direction it is consistent, be clockwise or counter-clockwise.
Filled according to a kind of electronic equipment that this utility model is provided, including the NFC antenna of above-mentioned adjustable self-resonant frequency
Put.
According to a kind of method for making the adjustable self-resonant frequency of NFC antenna that this utility model is provided, which is in metal routing
Connect capacitive means between two ends.
Compared with prior art, this utility model has following beneficial effect：
1st, this utility model flexible design, can adjust self-resonant frequency by capacitive means；
2nd, it is of the present utility model walk number of wire turns it is few, antenna effective radiation area increase；
3rd, this utility model cabling adopts helical annular, can radiation field it is more uniform；
4th, this utility model compatibility is good, and practicality is good, and the scope of application is wider.
Description of the drawings
By reading the detailed description made to non-limiting example with reference to the following drawings, other spies of the present utility model
Levy, objects and advantages will become more apparent upon：
Fig. 1 is structural representation of the present utility model, metal routing helically rectangular configuration in figure.
Fig. 2 is structural representation of the present utility model, metal routing helically circular configuration in figure.
Fig. 3 is the schematic diagram of capacitive means quantity setting in this utility model.
Fig. 4 is dimensional structure diagram of the present utility model.
Specific embodiment
This utility model is described in detail with reference to specific embodiment.Following examples will be helpful to this area
Technical staff further understands this utility model, but does not limit this utility model in any form.It should be pointed out that to ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, some changes and improvements can also be made.
These belong to protection domain of the present utility model.
This utility model is related to a kind of NFC antenna device of adjustable self-resonant frequency, including metal routing and capacitor dress
Put.Metal routing is helical annular cabling etc., and base material can be PCB, FPCB or FPC etc..Capacitor device is connected to metal
Cabling two ends, for adjusting self-resonant frequency.This utility model is had the following advantages compared with conventional NFC antenna：Flexible design,
Self-resonant frequency can be adjusted；Walk number of wire turns few, the increase of antenna effective radiation area；Cabling helical annular, radiation field is more
Uniformly；Compatible good, practicality is good, and the scope of application is wider.
Specifically, the NFC antenna device of a kind of adjustable self-resonant frequency for being provided according to this utility model, including：Metal
Cabling 1, capacitive means 2；Some capacitive means 2 are connected between one end of metal routing 1 and the other end of metal routing 1.It is many
Individual capacitive means 2 are connected in parallel between the other end of one end of metal routing 1 and metal routing 1.NFC days of adjustable self-resonant frequency
Line apparatus include base material 4；Metal routing 1 includes the first cabling 101, the second cabling 102；One end of first cabling 101 is by weldering
Disk connects one end of capacitive means 2, and the other end of the first cabling 101 connects one end of the second cabling 102, the second cabling 102
The other end connects the other end of capacitive means 2 by pad；First cabling 101, the second cabling 102 are the wiring on base material 4.The
One cabling 101 is symmetrical arranged with the second cabling 102.First cabling 101 is by the one end of itself, inwardly coiling extends to itself
The other end；Second cabling 102 is by the one end of itself, outwards coiling extends to the other end of itself.The coiling is referred to
Spiral wound or rectangular disk around.Exist at juxtaposition between first cabling 101, the second cabling 102.First cabling 101,
The extension coil direction of the second cabling 102 is consistent, is clockwise or counter-clockwise.
Filled according to a kind of electronic equipment that this utility model is provided, including the NFC antenna of above-mentioned adjustable self-resonant frequency
Put.
According to a kind of method for making the adjustable self-resonant frequency of NFC antenna that this utility model is provided, the two of metal routing 1
Connect capacitive means 2 between end.
If be located under free space or nonmetallic environment under when, the adjustable self-resonant frequency NFC antenna dress
Put and can not need magnetic material；If being located under battery context or metal environment, the NFC of the adjustable self-resonant frequency
Antenna assembly needs using magnetic material to shield influencing each other between NFC magnetic fields and battery, metal environment.Magnetic material sets
Put in the side of base material；The magnetic material is ferrite or ferrite magnetic substance flexible material.
More specific detail is carried out to this utility model below.
As shown in Figure 1 and Figure 2,1 helical annular cabling of metal routing or spiral circle cabling.Capacitor device 2 is connected to
Metal routing opening two ends, for adjusting the self-resonant frequency of antenna assembly, to obtain expected frequency (such as 13.56MHz or so).
Such as Fig. 3, depending on concrete capacitors count need to treat concrete condition.This utility model is placed under free space or nonmetallic environment
Under, antenna assembly can adopt magnetic material, if being located under battery context or metal environment, as shown in figure 4,
Antenna assembly needs using ferrite or ferrite magnetic substance flexible material to shield between NFC magnetic fields and battery, metal environment
Influence each other.
Above specific embodiment of the utility model is described.It is to be appreciated that this utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or change,
This has no effect on flesh and blood of the present utility model.Spy in the case where not conflicting, in embodiments herein and embodiment
Levy and arbitrarily can be mutually combined.
Claims (9)
1. a kind of NFC antenna device of adjustable self-resonant frequency, it is characterised in that include：Metal routing (1), capacitive means
(2)；
Some capacitive means (2) are connected between one end of metal routing (1) and the other end of metal routing (1).
2. the NFC antenna device of adjustable self-resonant frequency according to claim 1, it is characterised in that multiple capacitive means
(2) it is connected in parallel between one end of metal routing (1) and the other end of metal routing (1).
3. the NFC antenna device of adjustable self-resonant frequency according to claim 1, it is characterised in that including base material (4)；
Metal routing (1) includes the first cabling (101), the second cabling (102)；
One end of one end connection capacitive means (2) of the first cabling (101), the other end connection second of the first cabling (101) are walked
One end of line (102), the other end of other end connection capacitive means (2) of the second cabling (102)；
First cabling (101), the second cabling (102) are the wiring on base material (4).
4. the NFC antenna device of adjustable self-resonant frequency according to claim 3, it is characterised in that the first cabling (101)
It is symmetrical arranged with the second cabling (102).
5. the NFC antenna device of adjustable self-resonant frequency according to claim 3, it is characterised in that the first cabling (101)
By the one end of itself, inwardly coiling extends to the other end of itself；Second cabling (102) is by the one end of itself, to
Outer coiling extends to the other end of itself.
6. the NFC antenna device of adjustable self-resonant frequency according to claim 5, it is characterised in that the coiling is referred to
Spiral wound or rectangular disk around.
7. the NFC antenna device of adjustable self-resonant frequency according to claim 3, it is characterised in that the first cabling
(101), exist at juxtaposition between the second cabling (102).
8. the NFC antenna device of adjustable self-resonant frequency according to claim 5, it is characterised in that the first cabling
(101), the extension coil direction of the second cabling (102) is consistent, is clockwise or counter-clockwise.
9. a kind of electronic equipment, it is characterised in that including the adjustable self-resonant frequency any one of claim 1 to 8
NFC antenna device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621081712.1U CN206059650U (en) | 2016-09-26 | 2016-09-26 | The NFC antenna device of adjustable self-resonant frequency and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621081712.1U CN206059650U (en) | 2016-09-26 | 2016-09-26 | The NFC antenna device of adjustable self-resonant frequency and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206059650U true CN206059650U (en) | 2017-03-29 |
Family
ID=58366826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621081712.1U Expired - Fee Related CN206059650U (en) | 2016-09-26 | 2016-09-26 | The NFC antenna device of adjustable self-resonant frequency and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206059650U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299667A (en) * | 2016-09-26 | 2017-01-04 | 上海德门电子科技有限公司 | The NFC antenna device of adjustable self-resonant frequency and electronic equipment and method |
| CN110364803A (en) * | 2019-06-18 | 2019-10-22 | 南京工业职业技术学院 | A kind of combined antenna for parking |
-
2016
- 2016-09-26 CN CN201621081712.1U patent/CN206059650U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299667A (en) * | 2016-09-26 | 2017-01-04 | 上海德门电子科技有限公司 | The NFC antenna device of adjustable self-resonant frequency and electronic equipment and method |
| CN110364803A (en) * | 2019-06-18 | 2019-10-22 | 南京工业职业技术学院 | A kind of combined antenna for parking |
| CN110364803B (en) * | 2019-06-18 | 2021-07-13 | 南京工业职业技术学院 | Combined antenna for parking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20170926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |