CN106329109A - NFC antenna of card type Key - Google Patents
NFC antenna of card type Key Download PDFInfo
- Publication number
- CN106329109A CN106329109A CN201610892216.2A CN201610892216A CN106329109A CN 106329109 A CN106329109 A CN 106329109A CN 201610892216 A CN201610892216 A CN 201610892216A CN 106329109 A CN106329109 A CN 106329109A
- Authority
- CN
- China
- Prior art keywords
- nfc antenna
- pcb board
- card form
- form key
- pcb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- 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
Abstract
The invention relates to an NFC antenna of a card type Key. In the prior art, an NFC antenna is usually arranged in a card type Key, and the problems of being high in production cost, complex in process, long in production period and the like exist. According to the NFC antenna of the card type Key, a copper skin wire of a PCB replaces a copper wire coil, the PCB is a special-shaped PCB, and the copper wire coil is wound around the PCB to serve as the NFC antenna. By the adoption of the NFC antenna of the card type Key, the production cost is low, the process is simple, the production period is short, the thickness of a product is greatly reduced, and the NFC antenna can be widely used for the non-contact transaction of the card type Key.
Description
Technical field
The invention belongs to NFC field, be specifically related to the NFC antenna of a kind of card form Key.
Background technology
NFC is Near Field Communication abbreviation, i.e. near field communication (NFC).It is a kind of contactless
Identify and interconnection technique, near radio can be carried out at mobile device, consumer electronics product, PC and smart control Tool Room
Communication.NFC provides a kind of simple, solution of touch, exchanges with can allowing consumer's simple, intuitive in information, access
Hold and service.NFC is made up of with NFC antenna NFC module.NFC module is typically by a high-speed microprocessor, radio frequency chip and mate
Circuit forms.
NFC antenna is typically by the Ferrite Material of the circuit coil of coiling/printing/etch process making with capacity of resisting disturbance
Composition.NFC antenna is based on RFID REID, uses transformator coupling coupling altogether to do the hardware handles side communicated
Case, and the verification of data transfer procedure is completed by the communication instruction of processor, hardware environment passes through RFID modulation treatment, and
Adjusted by match circuit and design and produce successfully.
PCB (Printed Circuit Board, printed circuit board) is the supporter of electronic devices and components, along with electronics produces
From strength to strength, product appearance increasingly miniaturization, the plate shape of PCB reduces the function of product the most therewith, it is desirable to more and more higher.
The contactless transaction of existing card form, needs to place an integrated circuit and copper coil in card, and
Coil needs to be connected with integrated circuit with welding manner, as shown in Figure 1.This technical scheme exists that production cost is high, technique is multiple
The problems such as miscellaneous, production cycle length, and add the thickness of product.
Summary of the invention
For defect present in prior art, it is an object of the invention to provide the NFC antenna of a kind of card form Key.Should
The production cost of the NFC antenna of card form Key is low, and technique is simple, with short production cycle, and greatly reduces the thickness of product.
For reaching object above, the technical solution used in the present invention is:
The NFC antenna of a kind of card form Key, substitutes copper coil with the copper sheet cabling of pcb board, and described pcb board is different
Shape pcb board, copper coil is wound on pcb board as NFC antenna.
Further, the copper sheet thickness on described pcb board is 0.018-0.035mm.
Further, described NFC antenna profile and the mating shapes of abnormity pcb board.
Further, the live width of described NFC antenna is 0.08-0.5mm.
Further, the live width of described NFC antenna is 0.1mm.
Further, the coiling center distance of described NFC antenna is 0.1mm-0.5mm.
Further, the coiling center distance of described NFC antenna is 0.47mm.
Further, the overall dimensions of described pcb board is 46.8*78.3mm.
Further, described pcb board has hollowed out a region as LCD layout region.
Further, the upper right side at described pcb board hollows out the region of a 32.21*23mm as LCD layout district
Territory.
Effect of the invention is that: using the NFC antenna of card form Key of the present invention, production cost is low, technique letter
Single, with short production cycle, and greatly reduce the thickness of product, and may be used for the non-of card form Key and connect transaction, can efficient solution
The thickness that certainly LCD with PCB superposes, reduces product integral thickness, can meet again NFC transactions demand.
Specifically, and the card of band bluetooth KEY function, because product function is powerful, components and parts are many and layout is intensive, for subtracting
The use of few components and parts, is wound on NFC antenna on pcb board, can largely reduce BOM cost and the processing of copper coil
Operation.It addition, the customization abnormity copper coil process-cycle especially is long, customization cost is high, and antenna is wound on pcb board, the most permissible
Arbitrarily adjust with pcb board shape, save cycle and the high price cost of customization device of customization abnormity copper coil, to improve product
Development progress.
Accompanying drawing explanation
Built in NFC antenna schematic diagram in card form Key in Fig. 1 prior art；
Fig. 2 is the NFC antenna a kind of winding placement figure on pcb board in the specific embodiment of the invention；
Fig. 3 is the NFC antenna a kind of cabling mode figure on pcb board in the specific embodiment of the invention.
Detailed description of the invention
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
The NFC antenna of a kind of card form Key, substitutes copper coil with the copper sheet cabling of pcb board, and described pcb board is different
Shape pcb board, copper coil is wound on abnormity pcb board as NFC antenna.
In the present embodiment, a kind of PCB winding mode, as NFC antenna, substitutes copper coil with the copper sheet cabling of pcb board,
Both reduced copper coil materials, removed again human weld's technique from, and to reduce product BOM cost and finished product thickness, reduced simultaneously and add
Work operation, reduces cost of labor, improves production efficiency.Can be with pcb board with the NFC antenna profile that cabling mode is wound on pcb board
Shape arbitrarily adjusts, and removes from high price cost and the process-cycle of customization copper coil, thus reduces cost and improve product development week
Phase.
The present invention, by antenna of being concluded the business by the NFC of card, is wound on around abnormity PCB in PCB trace mode, with pcb board
Upper 0.018-0.035mm copper sheet thickness substitutes the copper coil of 0.13mm, and configuration design flexibly, to meet card 86*54*
The form-factor of 0.76 (mm), and the operating frequency of 13.56MH.
As shown in Figures 2 and 3, NFC antenna layout in pcb board and a kind of embodiment of cabling mode.Such as Fig. 2 institute
Showing, wherein the 1 of outermost is PCB form wire (the circle thick line in figure), and 2 is LCD layout region, the copper cash being wound on pcb board
Coil 3 is NFC antenna (4 circle fine rules in figure), live width 0.1-0.5mm of NFC antenna, coiling center distance 0.1mm-0.5mm.
In the present embodiment, live width 0.1mm of NFC antenna, coiling center distance 0.47mm.As it is shown on figure 3, PCB overall dimensions is 46.8*
78.3mm, hollows out the LCD layout region of 32.21*23mm in upper right side.
Card form KEY project, it is desirable to formed product thickness is thin, band LCD display and NFC are non-connects transaction, and LCD display is
Device the thickest in this product, its thickness determines the thickness of whole product.In the present invention, for effectively reducing product thickness, will
Pcb board shape carries out abnormity and processes, and hollows out the LCD layout region of 32.21*23mm in the upper right corner, and NFC antenna presses this pcb board shape
Winding Design, reaches arm's length dealing state for meeting operating frequency, and antenna live width designs with 0.1mm, line-spacing for 0.37mm.
In concrete production, the live width of NFC antenna, coiling center distance and the position in LCD layout region and the biggest
Little all can require adjust neatly according to the design of product.In another embodiment, the live width of NFC antenna be 0.5mm,
Coiling center distance 0.1mm, LCD layout region is in the upper left corner of product.
According to above-described embodiment, it can be seen that use NFC antenna of the present invention, there is following technique effect:
1, reduce copper coil, reduce BOM cost.
2, human weld's technique is reduced, optimized production process, improves production efficiency and reduces cost of labor.
3, antenna and PCB are integrally machined shaping, and any winding mode on PCB, reduction customization abnormity copper coil
Add the cycle and customization part high price cost, reduce product cost, the construction cycle of raising.
4, solve the thickness that superposes of copper coil and PCB, reduce product integral thickness, meet card 86*54*0.76 (mm)
Form-factor, and the operating frequency of 13.56MH.
Device of the present invention is not limited to the embodiment described in detailed description of the invention, those skilled in the art according to
Technical scheme draws other embodiment, also belongs to the technological innovation scope of the present invention.
Claims (10)
1. the NFC antenna of a card form Key, it is characterised in that: substitute copper coil with the copper sheet cabling of pcb board, described
Pcb board is abnormity pcb board, and copper coil is wound on pcb board as NFC antenna.
The NFC antenna of a kind of card form Key the most as claimed in claim 1, is characterized in that: the copper sheet on described pcb board is thick
Degree is 0.018-0.035mm.
The NFC antenna of a kind of card form Key the most as claimed in claim 1, is characterized in that: described NFC antenna profile is with different
The mating shapes of shape pcb board.
The NFC antenna of a kind of card form Key the most as claimed in claim 1, is characterized in that: the live width of described NFC antenna is
0.08-0.5mm。
The NFC antenna of a kind of card form Key the most as claimed in claim 4, is characterized in that: the live width of described NFC antenna is
0.1mm。
6. the NFC antenna of a kind of card form Key as described in any one of claim 1 to 5, is characterized in that: described NFC antenna
Coiling center distance be 0.1mm-0.5mm.
The NFC antenna of a kind of card form Key the most as claimed in claim 6, is characterized in that: in the coiling of described NFC antenna
In the heart away from for 0.47mm.
The NFC antenna of a kind of card form Key the most as claimed in claim 6, is characterized in that: the overall dimensions of described pcb board
For 46.8*78.3mm.
The NFC antenna of a kind of card form Key the most as claimed in claim 1, is characterized in that: hollowed out on described pcb board
One region is as LCD layout region.
The NFC antenna of a kind of card form Key the most as claimed in claim 9, is characterized in that: in the upper right side of described pcb board
Hollow out the region of a 32.21*23mm as LCD layout region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892216.2A CN106329109A (en) | 2016-10-13 | 2016-10-13 | NFC antenna of card type Key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892216.2A CN106329109A (en) | 2016-10-13 | 2016-10-13 | NFC antenna of card type Key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329109A true CN106329109A (en) | 2017-01-11 |
Family
ID=57821507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892216.2A Pending CN106329109A (en) | 2016-10-13 | 2016-10-13 | NFC antenna of card type Key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994824A (en) * | 2017-12-29 | 2019-07-09 | 深圳市海德门电子有限公司 | A kind of copper sheet extends out type around wire antenna and its application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202261429U (en) * | 2011-09-20 | 2012-05-30 | 东莞宇龙通信科技有限公司 | Printed circuit board and mobile terminal |
| CN103762424A (en) * | 2014-01-08 | 2014-04-30 | 深圳顺络电子股份有限公司 | Nfc antenna |
| CN206480764U (en) * | 2016-10-13 | 2017-09-08 | 北京握奇智能科技有限公司 | A kind of card form Key NFC antenna |
-
2016
- 2016-10-13 CN CN201610892216.2A patent/CN106329109A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202261429U (en) * | 2011-09-20 | 2012-05-30 | 东莞宇龙通信科技有限公司 | Printed circuit board and mobile terminal |
| CN103762424A (en) * | 2014-01-08 | 2014-04-30 | 深圳顺络电子股份有限公司 | Nfc antenna |
| CN206480764U (en) * | 2016-10-13 | 2017-09-08 | 北京握奇智能科技有限公司 | A kind of card form Key NFC antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109994824A (en) * | 2017-12-29 | 2019-07-09 | 深圳市海德门电子有限公司 | A kind of copper sheet extends out type around wire antenna and its application |
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