CN209641838U - The NFC antenna being integrated on match circuit - Google Patents
The NFC antenna being integrated on match circuit Download PDFInfo
- Publication number
- CN209641838U CN209641838U CN201920558846.5U CN201920558846U CN209641838U CN 209641838 U CN209641838 U CN 209641838U CN 201920558846 U CN201920558846 U CN 201920558846U CN 209641838 U CN209641838 U CN 209641838U
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- CN
- China
- Prior art keywords
- nfc antenna
- match circuit
- circuit
- pcb board
- integrated
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Abstract
The utility model provides a kind of NFC antenna being integrated on match circuit, including chip (1), NFC antenna, match circuit and pcb board (5)；Wherein, the match circuit is the ifq circuit being arranged on pcb board (5), including feed node；The chip (1) and NFC antenna are arranged on pcb board (5), and both the chip (1) and NFC antenna are connected by signal node set between the two；The NFC antenna is connected with match circuit by feed node, i.e., NFC antenna and match circuit are fed by same feed node.The utility model realizes NFC function on communication apparatus circuit board, functional, saves space, does not need to need external other antennas, especially suitable for the equipment of narrow space, reduces cost, has good practicability.
Description
Technical field
The utility model relates to NFC antenna technical fields, and in particular, to a kind of NFC days be integrated on match circuit
Line more particularly to a kind of NFC antenna scheme being integrated on match circuit.
Background technique
Undoubtedly, in recent years NFC technology in electronic product using more and more extensive.
Conditional electronic product carries the mode of NFC antenna, is that antenna is attached to plastic shell.This carrying mode is done
Work demand is simple, and since plastic housing will not interfere the electromagnetic radiation of NFC antenna, and shielding, NFC performance often also compares
It is more excellent.But as people are to the appearance of electronic product, structure etc. requires higher and higher, traditional plastic shell electronic product
Due to its plastics appearance, mechanical strength, usage experience etc. is no longer satisfied all user demands.Product is also toward small-sized
Change development.How the direction of Developing is become in save the cost, reduction space, and under the premise of capable of not losing NFC function.
A kind of miniaturization NFC antenna as disclosed in patent document CN205488527U belongs to antenna technical field, including is situated between
Matter substrate (1) and loop construction, the loop construction include between head end (3), end (4) and head end (3) and end (4)
Conducting wire (2), spiral " mouth " the font route of conducting wire (2) winding escalator, conducting wire (2) the ecto-entad coiling, then by interior
Coiling outward, adjacent " mouth " font route joining place form jumper wire construction (7,8), the head end (3) and end (4) equal position
In outermost layer " mouth " font route.
But this kind of prior art is still limited to set about from the volume for reducing NFC itself, it is believed that reduces NFC volume except this it
Outside not without method.And in fact, general electronic products all have the circuit pcb board on basis, if NFC antenna is placed on PCB
On plate, space can be not only reduced, moreover it is possible to the problem of effective solution is especially in terms of cost.If by Antenna Design in plastics
The places such as shell not only need the magnetic materials such as ferrite to increase cost, but also have larger requirement to structure space, so by NFC
It is a practical scheme that antenna, which is placed in match circuit,.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of NFC being integrated on match circuit
Antenna.
According to a kind of NFC antenna being integrated on match circuit provided by the utility model, including chip, NFC antenna,
With circuit and pcb board；
Wherein, the match circuit is the ifq circuit being arranged on pcb board, including feed node；The chip and NFC
Antenna is arranged on pcb board, and both the chip and NFC antenna are connected by signal node set between the two；
The NFC antenna is connected with match circuit by feed node, i.e., NFC antenna and match circuit are presented by same feed node
Electricity；
The match circuit includes capacitor；The NFC antenna is also connected by capacitor with match circuit, i.e., NFC antenna and
Match circuit shares at least one capacitor；
The match circuit includes inductance；The NFC antenna is also connected by inductance with match circuit, i.e., NFC antenna and
Match circuit shares at least one inductance；
The pcb board is PCB copper-clad plate；
The NFC antenna being integrated on match circuit further includes a day space of lines；The antenna is spatially located at pcb board one
Side, the floor space of day space of lines are not more than pcb board area, and the height of day space of lines is not less than 0.15mm；
The material that is made of the pcb board meets the resistance to combustion standard of FR-4；
The NFC antenna includes circuit trace；The inductance and capacitor are electrically connected to form circuit by circuit trace, and should
Circuit is connect with chip by signal node；
The NFC antenna includes etched circuit；
The NFC antenna only includes etched circuit, does not include external coil.
According to a kind of NFC antenna being integrated on match circuit provided by the utility model, including chip, NFC antenna,
With circuit and pcb board；
Wherein, the match circuit is the ifq circuit being arranged on pcb board, including feed node；The chip and NFC
Antenna is arranged on pcb board, and both the chip and NFC antenna are connected by signal node set between the two；
The NFC antenna is connected with match circuit by feed node, i.e., NFC antenna and match circuit are presented by same feed node
Electricity.
Preferably, the match circuit includes capacitor；The NFC antenna is also connected by capacitor with match circuit, i.e. NFC
Antenna and match circuit share at least one capacitor.
Preferably, the match circuit includes inductance；The NFC antenna is also connected by inductance with match circuit, i.e. NFC
Antenna and match circuit share at least one inductance.
Preferably, the pcb board is PCB copper-clad plate.
Preferably, the NFC antenna being integrated on match circuit further includes a day space of lines；The antenna is spatially located at
Pcb board side, the floor space of day space of lines are not more than pcb board area, and the height of day space of lines is not less than 0.15mm.
Preferably, the material that is made of the pcb board meets the resistance to combustion standard of FR-4.
Preferably, the NFC antenna includes circuit trace；The inductance and capacitor are electrically connected to form back by circuit trace
Road, and the circuit is connect with chip by signal node.
Preferably, the NFC antenna includes etched circuit.
Preferably, the NFC antenna only includes etched circuit, does not include external coil.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, the NFC antenna provided by the utility model being integrated on match circuit, at low cost, performance is good, high-efficient
The advantages of；
2, the NFC antenna provided by the utility model being integrated on match circuit, passes through etched circuit and match circuit collection
At, without additional electronic component, volume needed for efficiently reducing NFC antenna；
3, the NFC antenna provided by the utility model being integrated on match circuit, structure framework is simple, it is with higher can
By property.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the preference schematic diagram of the NFC antenna provided by the utility model being integrated on match circuit.
It is shown in figure:
Chip 1
Inductance 2
Circuit trace 3
Capacitor 4
Pcb board 5
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These are all within the protection scope of the present invention.
According to a kind of NFC antenna being integrated on match circuit provided by the utility model, including chip 1, NFC antenna,
Match circuit and pcb board 5；
Wherein, the match circuit is the ifq circuit being arranged on pcb board 5, including feed node；1 He of chip
NFC antenna is arranged on pcb board 5, and both the chip 1 and NFC antenna pass through signal node set between the two
It is connected；The NFC antenna is connected with match circuit by feed node, i.e., NFC antenna and match circuit are saved by same feed
Point feed；The match circuit includes capacitor 4；The NFC antenna also passes through capacitor 4 with match circuit and is connected, i.e., NFC antenna and
Match circuit shares at least one capacitor 4；The match circuit includes inductance 2；The NFC antenna and match circuit also pass through electricity
Sense 2 is connected, i.e., NFC antenna and match circuit share at least one inductance 2；The pcb board 5 is PCB copper-clad plate；It is described to be integrated in
NFC antenna on match circuit further includes a day space of lines；The antenna is spatially located at 5 side of pcb board, the floor space of day space of lines
No more than 5 area of pcb board, the height of day space of lines is not less than 0.15mm；The material that is made of the pcb board 5 meets the resistance to combustion of FR-4
Standard；The NFC antenna includes circuit trace 3；The inductance 2 and capacitor 4 pass through circuit trace 3 and are electrically connected to form circuit, and
The circuit is connect with chip 1 by signal node；The NFC antenna includes etched circuit；The NFC antenna only includes etching electricity
Road does not include external coil.
Specifically, the utility model preference is related to a kind of NFC antenna scheme being integrated on match circuit.Program packet
Chip 1 is included, match circuit shares the NFC antenna of cabling with match circuit, and wherein antenna and match circuit are in the same pcb board 5
On.The antenna uses identical feed point with match circuit, forms NFC coil, i.e., the spoke on board area by circuit trace 3
Penetrate signal.The utility model preference realizes NFC function on communication apparatus circuit board, functional, saves space, does not need
External other antennas are needed, especially suitable for the equipment of narrow space, cost is reduced, there is good practicability.Particular technique side
Case is as follows:
NFC antenna is set on circuit board, and the scheme has match circuit and chip 1, and antenna is placed in match circuit
In, NFC antenna is formed by PCB trace.NFC antenna connects chip 1 by feed point.The antenna is by etching copper structure on pcb board 5
At coil.Chip 1 is located on pcb board 5, including the NFC antenna that match circuit and cabling are formed, end antenna feed point and chip 1
It is connected.NFC antenna is placed among match circuit.The match circuit includes inductance 2 and capacitor 4.Antenna is direct by PCB copper sheet
Etching is constituted, without other extra individually external coils.
Further, the purpose of the utility model preference is exactly a kind of collection proposed to overcome above-mentioned technical problem
At the NFC antenna scheme on match circuit.
A kind of NFC communication antenna, is placed on pcb board 5；The pcb board 5 has match circuit and chip 1, antenna placement
With in circuit, it is connected with chip 1, and then realizes NFC function.The NFC antenna regional space height >=0.15mm.The day
Line is placed in match circuit, and match circuit includes inductance 2 and capacitor 4.The antenna from PCB copper sheet etching cabling is formed thus to
External radiation is free of individual NFC antenna.The pcb board is FR4 material.
The utility model preference is applied to the NFC antenna scheme being integrated on match circuit, makes have NFC function, special
It is not to save that there is good near-field communication scheme under cost simultaneously.Compared with conventional NFC technique, there is following advantage, do not need
Additional individual NFC antenna, saves cost；It is small for space structure, keep its framework smaller, there is good practicability.
Further, with reference to Fig. 1, a kind of the utility model preference --- NFC antenna being integrated on match circuit
Equipment described in scheme includes chip 1, antenna and match circuit.Wherein, antenna is that inductance 2 and circuit trace 3 are constituted, and inductance 2 is big
Small to can control antenna parameter with cabling length and width, match circuit is controlled the size of impedance matching by main capacitor 4.Complete matching electricity
Road is connected with chip.
When work, the ac signal of NFC circuit module passes through feed point, is transferred to PCB circuit trace 3, forms closure
The ring current in circuit is to form NFC antenna.Magnetic field is generated to external radiation, and then is completed logical with the coupling of extraneous communication apparatus
News.
In the description of the present application, it is to be understood that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is orientation based on the figure or position
Relationship is set, description the application is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (10)
1. a kind of NFC antenna being integrated on match circuit, which is characterized in that including chip (1), NFC antenna, match circuit with
And pcb board (5)；
Wherein, the match circuit is the ifq circuit being arranged on pcb board (5), including feed node；The chip (1) and
NFC antenna is arranged on pcb board (5), and both the chip (1) and NFC antenna pass through signal set between the two
Node is connected；The NFC antenna is connected with match circuit by feed node, i.e., NFC antenna and match circuit pass through same feedback
Electrical nodes feed；
The match circuit includes capacitor (4)；The NFC antenna also passes through capacitor (4) with match circuit and is connected, i.e. NFC antenna
At least one capacitor (4) is shared with match circuit；
The match circuit includes inductance (2)；The NFC antenna also passes through inductance (2) with match circuit and is connected, i.e. NFC antenna
At least one inductance (2) is shared with match circuit；
The pcb board (5) is PCB copper-clad plate；
The NFC antenna being integrated on match circuit further includes a day space of lines；The antenna is spatially located at pcb board (5) side,
The floor space of its space of lines is not more than pcb board (5) area, and the height of day space of lines is not less than 0.15mm；
The material that is made of the pcb board (5) meets the resistance to combustion standard of FR-4；
The NFC antenna includes circuit trace (3)；The inductance (2) and capacitor (4) are electrically connected to form by circuit trace (3)
Circuit, and the circuit is connect with chip (1) by signal node；
The NFC antenna includes etched circuit；
The NFC antenna only includes etched circuit, does not include external coil.
2. a kind of NFC antenna being integrated on match circuit, which is characterized in that including chip (1), NFC antenna, match circuit with
And pcb board (5)；
Wherein, the match circuit is the ifq circuit being arranged on pcb board (5), including feed node；The chip (1) and
NFC antenna is arranged on pcb board (5), and both the chip (1) and NFC antenna pass through signal set between the two
Node is connected；The NFC antenna is connected with match circuit by feed node, i.e., NFC antenna and match circuit pass through same feedback
Electrical nodes feed.
3. the NFC antenna according to claim 2 being integrated on match circuit, which is characterized in that the match circuit packet
Include capacitor (4)；The NFC antenna also passes through capacitor (4) with match circuit and is connected, i.e., NFC antenna and match circuit share at least
One capacitor (4).
4. the NFC antenna according to claim 3 being integrated on match circuit, which is characterized in that the match circuit packet
Include inductance (2)；The NFC antenna also passes through inductance (2) with match circuit and is connected, i.e., NFC antenna and match circuit share at least
One inductance (2).
5. the NFC antenna according to claim 2 being integrated on match circuit, which is characterized in that the pcb board (5) is
PCB copper-clad plate.
6. the NFC antenna according to claim 2 being integrated on match circuit, which is characterized in that described to be integrated in matching
NFC antenna on circuit further includes a day space of lines；The antenna is spatially located at pcb board (5) side, and the floor space of day space of lines is not
Greater than pcb board (5) area, the height of day space of lines is not less than 0.15mm.
7. being integrated in the NFC antenna on match circuit according to any one of claim 2 to 6, which is characterized in that described
The material that is made of pcb board (5) meets the resistance to combustion standard of FR-4.
8. the NFC antenna according to claim 4 being integrated on match circuit, which is characterized in that the NFC antenna includes
Circuit trace (3)；The inductance (2) and capacitor (4) pass through circuit trace (3) and are electrically connected to form circuit, and the circuit and chip
(1) it is connected by signal node.
9. the NFC antenna according to claim 2 being integrated on match circuit, which is characterized in that the NFC antenna includes
Etched circuit.
10. the NFC antenna according to claim 9 being integrated on match circuit, which is characterized in that the NFC antenna is only
It does not include external coil including etched circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558846.5U CN209641838U (en) | 2019-04-23 | 2019-04-23 | The NFC antenna being integrated on match circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558846.5U CN209641838U (en) | 2019-04-23 | 2019-04-23 | The NFC antenna being integrated on match circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209641838U true CN209641838U (en) | 2019-11-15 |
Family
ID=68497861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920558846.5U Active CN209641838U (en) | 2019-04-23 | 2019-04-23 | The NFC antenna being integrated on match circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209641838U (en) |
-
2019
- 2019-04-23 CN CN201920558846.5U patent/CN209641838U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |