CN106921029B - NFC antenna based on electrostatic discharge protection under screen of electronic device - Google Patents
NFC antenna based on electrostatic discharge protection under screen of electronic device Download PDFInfo
- Publication number
- CN106921029B CN106921029B CN201710121456.7A CN201710121456A CN106921029B CN 106921029 B CN106921029 B CN 106921029B CN 201710121456 A CN201710121456 A CN 201710121456A CN 106921029 B CN106921029 B CN 106921029B
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- copper
- electrostatic discharge
- nfc
- nfc antenna
- ports
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides an NFC antenna based on electrostatic discharge protection under an electronic device screen, which comprises the following components: the NFC type copper wire comprises copper wires, PI base materials, colloid, copper through holes, printing ink and copper blocks, wherein one surface of the PI base materials is the NFC copper wires and the electrostatic discharge copper wires, the other surface of the PI base materials is the discontinuous copper blocks, and the NFC copper wires form a two-port passage. The copper wire of the electrostatic discharge is formed into an open circuit of two ports, a plurality of copper wires are respectively led out from the two ports formed by the electrostatic discharge, and the led copper wires are respectively connected with discontinuous copper blocks on the other surface of the PI substrate through copper through holes. The NFC circuit can be protected from permanent damage caused by the impact of electrostatic discharge, NFC signal transmission can be ensured not to be interfered by the electrostatic discharge, and the NFC circuit is simple and compact in overall structure and wide in applicability.
Description
Technical Field
The invention relates to the field of NFC antenna design, in particular to an NFC antenna based on electrostatic discharge protection under an electronic device screen.
Background
NFC near field communication technology is integrated and evolved by non-contact radio frequency identification and interconnection technology, and the NFC near field communication technology can be used for carrying out identification and data exchange with compatible equipment in a short distance by combining the functions of an induction card reader, an induction card and point-to-point on a single chip. The operating frequency of 13.56MHz, which is now widely discussed and implemented, provides the consumer with valuable transactions in a proximity sensing manner. In implementing various integration and implementation manners of NFC, there is an effect that an impact of electrostatic discharge may not be ignored, and the current mainstream NFC antenna does not have an electrostatic discharge protection function.
And (3) searching:
the application number is: 2015151984. X, entitled "an NFC antenna", discloses an NFC antenna connected to a circuit board through a thimble, comprising: a substrate; a first contact unit, a second contact unit and a conductive coil which are positioned on the upper surface of the substrate; the first contact unit comprises a plurality of first contacts used for being connected with the positive electrode of the thimble, and the second contact unit comprises a plurality of second contacts used for being connected with the negative electrode of the thimble; a plurality of conductive vias penetrating the substrate and connected to each other through conductive patterns located on the lower surface of the substrate; the first contact is connected to the outer ring of the conductive coil, and the second contact is connected with the inner ring of the conductive coil through the conductive through hole and the conductive pattern; the first contacts and the second contacts are arranged in a lattice mode, each row comprises first contacts and second contacts which are arranged at intervals, and each column comprises first contacts and second contacts which are arranged at intervals. The array contact design can meet the contact of multiple ejector pins, and the antenna does not need to be custom designed.
The application number is: 201310578019.X, named "an NFC antenna and device", discloses an NFC antenna, which is composed of FPC and ferrite sheet, wherein the FPC is attached to one side of the ferrite sheet and forms a whole with the ferrite sheet. The NFC antenna is combined with the screen of the mobile device, so that the product space is saved.
The application number is: 201410123232.6 entitled "mobile terminal and NFC antenna", the mobile terminal of which comprises: a terminal body; NFC antenna, NFC antenna establishes the back of terminal main part, NFC antenna passes the longitudinal centerline and/or the lateral centerline of the back of terminal main part, just NFC antenna's the part that is located the longitudinal centerline and/or the lateral centerline both sides of the back of terminal main part are asymmetric. The mobile terminal provided by the embodiment of the invention has the advantages of small resonance frequency deviation during P2P operation, high communication sensitivity, high communication success rate, strong communication capability and the like.
The NFC antenna in the above document cannot solve the problem of electrostatic discharge protection, so it is necessary to provide an NFC antenna based on electrostatic discharge protection under the screen of the electronic device, which can protect the NFC circuit from permanent damage caused by the impact of electrostatic discharge, and can ensure that the NFC signal transmission is not interfered by electrostatic discharge.
Disclosure of Invention
In view of the drawbacks of the prior art, an object of the present invention is to provide an NFC antenna based on electrostatic discharge protection under the screen of an electronic device.
According to the invention, the NFC antenna based on electrostatic discharge protection under the screen of the electronic device comprises: a PI substrate, wherein one surface of the PI substrate is provided with an NFC copper wire and a plurality of electrostatic discharge copper wires, and the other surface of the PI substrate is provided with a plurality of discontinuous copper blocks; the copper wire of NFC forms a two-port access structure, and the copper wire of electrostatic discharge forms a two-port circuit breaking structure.
Preferably, two ends of the two ports of the NFC antenna are a start point and an end point of the copper wire of the NFC, and the copper wire of the NFC extends from one end of the two ports of the NFC antenna to the other end of the two ports of the NFC antenna.
Preferably, two ends of the two ports of the NFC antenna are two starting points of the electrostatic discharge copper trace, and each electrostatic discharge copper trace extends on one surface of the PI substrate with any one of the two ends of the two ports of the NFC antenna as a starting point.
Preferably, a copper via hole is disposed at an extension end position of each electrostatic discharge copper trace, and the extension end point of each electrostatic discharge copper trace is connected with a copper block disposed at a corresponding position on the other surface of the PI substrate through the copper via hole.
Preferably, the trace of the copper trace of NFC is parallel to the trace of each of the electrostatically discharged copper traces.
Preferably, the track lengths of the plurality of electrostatic discharge copper wires led out from the same end point of the two ports of the NFC antenna are different, and no intersection point exists between the electrostatic discharge copper wires led out from different end points of the two ports of the NFC antenna.
Preferably, the surface layer of the PI substrate is coated with an ink.
Preferably, two end points of two ports of the NFC antenna are connected to a metal area based on the periphery of the screen of the electronic device, and the metal area is a grounding end.
Compared with the prior art, the invention has the following beneficial effects:
1. the NFC antenna based on electrostatic discharge protection below the screen of the electronic equipment can protect an NFC circuit from permanent damage caused by electrostatic discharge impact, and can also ensure that NFC signal transmission is not interfered by electrostatic discharge.
2. The electrostatic discharge protection NFC antenna is simple and compact in structure, particularly suitable for being placed below a screen of electronic equipment, light, thin, small and easy to realize electrostatic discharge protection, and good in overall NFC antenna performance.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of an NFC antenna applied to an electronic screen based on electrostatic discharge protection under the electronic device screen according to the present invention;
fig. 2 is a schematic structural diagram of one side of an NFC antenna based on electrostatic discharge protection under a screen of an electronic device according to the present invention;
fig. 3 is a schematic structural diagram of another side of an NFC antenna based on electrostatic discharge protection under a screen of an electronic device according to the present invention;
fig. 4 is a schematic structural diagram of a conventional NFC antenna;
in the figure:
1-copper wiring of NFC;
2-copper via holes;
3-copper routing of electrostatic discharge;
4-copper block;
5-an electronic device;
a 6-metal region;
7-screen;
8-NFC antenna with electrostatic discharge protection.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
According to the invention, the NFC antenna based on electrostatic discharge protection under the screen of the electronic device comprises: a PI substrate, wherein one surface of the PI substrate is provided with an NFC copper wire 1 and a plurality of electrostatic discharge copper wires 3, and the other surface of the PI substrate is provided with a plurality of discontinuous copper blocks 4; the copper wire 1 of NFC forms a two-port path structure, and the copper wire 3 of electrostatic discharge forms a two-port circuit breaker structure.
Two endpoints of two ports of the NFC antenna are the starting point and the ending point of the copper wire 1 of the NFC, and the copper wire 1 of the NFC extends from one endpoint of the two ports of the NFC antenna to the other endpoint of the two ports of the NFC antenna.
Two ends of two ports of the NFC antenna are two starting points of the electrostatic discharge copper wire 3, and each electrostatic discharge copper wire 3 extends on one surface of the PI substrate by taking any one of the two ends of the two ports of the NFC antenna as the starting point.
The extension end point of each electrostatic discharge copper wire 3 is provided with a copper via hole 2, and the extension end point of each electrostatic discharge copper wire 3 is connected with a copper block 4 arranged at a corresponding position on the other surface of the PI substrate through the copper via hole 2.
The track of the copper wire 1 of the NFC and the track of each copper wire 3 of the electrostatic discharge are parallel to each other.
The track lengths of the electrostatic discharge copper wires 3 led out from the same end point of the two end points of the NFC antenna are different (correspondingly connected with different copper blocks 4), and no intersection point exists between the electrostatic discharge copper wires 3 led out from the different end points of the two end points of the NFC antenna.
The surface layer of the PI substrate is coated with ink.
Two end points of the two ports of the NFC antenna are connected with a metal area 5 based on the periphery of the screen of the electronic equipment, and the metal area 5 is a grounding end.
Specifically, as shown in fig. 1, the NFC antenna based on electrostatic discharge protection under the screen of the electronic device in the present invention includes: copper wire, PI substrate, colloid, copper via hole 2, printing ink and copper piece 4, PI substrate one side is NFC's copper wire and electrostatic discharge's copper wire, and PI substrate another side is discontinuous copper piece, and NFC's copper wire 1 forms the passageway of two ports. The copper wire 3 of the electrostatic discharge forms a circuit break of two ports, the two ports formed by the electrostatic discharge can respectively lead out a plurality of copper wires, and the led out copper wires are respectively connected with the discontinuous copper blocks 4 on the other surface of the PI substrate through copper through holes. The metal area 5 of the electronic device 5 is quite grounded, and the electrostatic discharge two-port connection is based on the metal area 5 around the screen of the electronic device.
The ink is the surface layer of the NFC antenna with electrostatic discharge protection, and the copper via hole 2 is communicated with the electrostatic discharge copper wiring 3 and the copper block 4.
The NFC antenna based on electrostatic discharge protection below the screen of the electronic equipment can protect an NFC circuit from permanent damage caused by electrostatic discharge impact, and can also ensure that NFC signal transmission is not interfered by electrostatic discharge.
Furthermore, the NFC antenna with electrostatic discharge protection provided in the embodiment of the present invention is in a circular arc shape, and the shape of the NFC antenna can be changed according to specific situations in practical application, for example, a rectangle, a polygon, an irregular shape, etc.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (5)
1. An NFC antenna based on electrostatic discharge protection under a screen of an electronic device, comprising: a PI substrate, wherein one surface of the PI substrate is provided with an NFC copper wire (1) and a plurality of electrostatic discharge copper wires (3), and the other surface of the PI substrate is provided with a plurality of discontinuous copper blocks (4); the NFC device comprises an NFC copper wire (1), an electrostatic discharge copper wire (3) and a power supply, wherein the NFC copper wire (1) forms a two-port access structure, and the electrostatic discharge copper wire (3) forms a two-port circuit breaking structure;
two endpoints of two ports of the NFC antenna are the starting point and the ending point of the copper wire (1) of the NFC, and the copper wire (1) of the NFC extends from one endpoint of the two ports of the NFC antenna to the other endpoint of the two ports of the NFC antenna;
two end points of the NFC antenna are two starting points of the electrostatic discharge copper routing wire (3), and each electrostatic discharge copper routing wire (3) extends on one surface of the PI substrate by taking any one of the two end points of the NFC antenna as the starting point;
the surface layer of the PI substrate is coated with ink.
2. NFC antenna based on electrostatic discharge protection under an electronic device screen according to claim 1, characterized in that a copper via (2) is arranged at the extension end position of each electrostatic discharge copper trace (3), and the extension end point of each electrostatic discharge copper trace (3) is connected with a copper block (4) arranged at a corresponding position on the other side of the PI substrate through the copper via (2).
3. NFC antenna based on electrostatic discharge protection under the screen of an electronic device according to claim 2, characterized in that the track of the copper track (1) of NFC and the track of each of the electrostatic discharge copper tracks (3) are parallel to each other.
4. The NFC antenna according to claim 2, wherein the track lengths of the plurality of electrostatic discharge copper traces (3) led out from the same end point of two ports of the NFC antenna are different, and there is no intersection point between the electrostatic discharge copper traces (3) led out from different end points of two ports of the NFC antenna.
5. The NFC antenna according to claim 1, wherein two end points of two ports of the NFC antenna are connected to a metal area (5) based on the periphery of the electronic device screen, and the metal area (5) is a ground terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121456.7A CN106921029B (en) | 2017-03-02 | 2017-03-02 | NFC antenna based on electrostatic discharge protection under screen of electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121456.7A CN106921029B (en) | 2017-03-02 | 2017-03-02 | NFC antenna based on electrostatic discharge protection under screen of electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106921029A CN106921029A (en) | 2017-07-04 |
| CN106921029B true CN106921029B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710121456.7A Active CN106921029B (en) | 2017-03-02 | 2017-03-02 | NFC antenna based on electrostatic discharge protection under screen of electronic device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925213A (en) * | 2005-09-01 | 2007-03-07 | 泛泰·科力特株式会社 | Mobile communication terminal having electrostatic discharge protection function |
| CN105609949A (en) * | 2016-03-18 | 2016-05-25 | 联想(北京)有限公司 | Electronic equipment |
| CN105742783A (en) * | 2011-05-31 | 2016-07-06 | 比亚迪股份有限公司 | Near field communication antenna |
| CN106405960A (en) * | 2016-10-14 | 2017-02-15 | 深圳市宇顺工业智能科技有限公司 | Liquid crystal display screen and wiring method thereof |
| CN206574846U (en) * | 2017-03-02 | 2017-10-20 | 上海德门电子科技有限公司 | NFC antenna based on the electrostatic discharge (ESD) protection below electronic equipment screen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200945956A (en) * | 2008-04-22 | 2009-11-01 | Wintek Corp | Electrostatic discharge protection device for touch panels |
| US8907859B2 (en) * | 2012-06-19 | 2014-12-09 | Intel Corporation | Edge-emitting antennas for ultra slim wireless mobile devices |
| US9083073B2 (en) * | 2012-06-28 | 2015-07-14 | Intel Corporation | Thin chassis near field communication (NFC) antenna integration |
-
2017
- 2017-03-02 CN CN201710121456.7A patent/CN106921029B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1925213A (en) * | 2005-09-01 | 2007-03-07 | 泛泰·科力特株式会社 | Mobile communication terminal having electrostatic discharge protection function |
| CN105742783A (en) * | 2011-05-31 | 2016-07-06 | 比亚迪股份有限公司 | Near field communication antenna |
| CN105609949A (en) * | 2016-03-18 | 2016-05-25 | 联想(北京)有限公司 | Electronic equipment |
| CN106405960A (en) * | 2016-10-14 | 2017-02-15 | 深圳市宇顺工业智能科技有限公司 | Liquid crystal display screen and wiring method thereof |
| CN206574846U (en) * | 2017-03-02 | 2017-10-20 | 上海德门电子科技有限公司 | NFC antenna based on the electrostatic discharge (ESD) protection below electronic equipment screen |
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| Publication number | Publication date |
|---|---|
| CN106921029A (en) | 2017-07-04 |
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