CN102646866A - Near field communication (NFC) antenna and terminal equipment - Google Patents
Near field communication (NFC) antenna and terminal equipment Download PDFInfo
- Publication number
- CN102646866A CN102646866A CN2012101130395A CN201210113039A CN102646866A CN 102646866 A CN102646866 A CN 102646866A CN 2012101130395 A CN2012101130395 A CN 2012101130395A CN 201210113039 A CN201210113039 A CN 201210113039A CN 102646866 A CN102646866 A CN 102646866A
- Authority
- CN
- China
- Prior art keywords
- coil
- antenna
- nfc
- substrate
- matching circuit
- 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
Images
Landscapes
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The invention discloses a near field communication (NFC) antenna and terminal equipment. The NFC antenna comprises a substrate, a first coil and a second coil, wherein the first coil is arranged on the front surface of the substrate, the second coil is arranged on the back surface of the substrate, a feed end which is used for connecting with an antenna matching circuit is led out from one end of the first coil, the other end of the first coil is connected with one end of the second coil, and a feed end which is used for connecting with the antenna matching circuit is led out from the other end of the second coil which is not connected with the first coil. The NFC antenna and the terminal equipment have the advantages that the area of the NFC antenna can be effectively utilized; and on the premise that the total area (outer contour) of the NFC antenna is unchanged, the total antenna width is reduced, the coil turns and the effective area of the antenna are increased at the same time, the induced magnetic field intensity is enhanced, the induced electromotive force is improved and the antenna performance is improved.
Description
Technical field
The present invention relates to the wireless mobile telecommunication technology field, relate in particular to a kind of close range wireless communication antenna and terminal equipment.
Background technology
NFC (Near Field Communication, wireless near field communication) is a kind of short-range contactless communication technology, and this technology has combined non-contact inductive and wireless connect technology, works in the 13.56MHz frequency range.Compare with other short-distance wireless communication technologies, the NFC technology has that transfer of data is safer, reaction time advantage more rapidly, is fit to very much to be applied to the field such as small amount payment, authentication under the wireless transmission environment.
Because NFC technical work frequency range is 13.56MHz, therefore require the NFC antenna to have bigger area, but, often limited the free space of NFC antenna owing to the terminal equipment structural design, comprise the total live width of the inner cabling of antenna outline and antenna; The alternating magnetic field that NFC specification requirement reception antenna produces through the induced emission antenna produces electrical potential difference with driving N FC chip operation; And induced field depends on transmitting-receiving NFC antenna size ratio, distance and angular relationship between dual-mode antenna, and these factors have also limited the design of NFC antenna.
Need have bigger area at the NFC antenna; And in the structure of terminal equipment; Under the situation that the free space of NFC antenna often is very limited again, on the basis of the structural design that satisfies terminal equipment, how to improve the electrical potential difference that reception antenna induced emission antenna is produced; So that driving N FC chip operation just becomes the problem that faces at present better.
Summary of the invention
The technical problem that the present invention will solve provides a kind of close range wireless communication antenna and terminal equipment, under the situation that does not increase antenna area, has promoted antenna performance.
For solving the problems of the technologies described above; A kind of close range wireless communication antenna of the present invention comprises: substrate, first coil and second coil, and said first coil places the front of substrate; Said second coil places the back side of substrate; One end of said first coil is drawn the feed end that is used to connect antenna-matching circuit, and the other end is connected with an end of said second coil, and the end that said second coil is not connected with first coil is drawn the feed end that is used to connect said antenna-matching circuit.
Further, said first coil and second coil around to identical.
Further, said substrate is flexible PCB (FPC).
Further, said feed end is pogo pin or contact spring.
Further, be connected through covering copper vias between the link of said first coil and second coil.
Further; A kind of terminal equipment; Comprise: mainboard, close range wireless communication (NFC) antenna, antenna-matching circuit and NFC chip, said antenna-matching circuit and NFC chip are arranged on the said mainboard, and said NFC antenna all is connected with said antenna-matching circuit with the NFC chip; Said NFC antenna comprises: substrate, first coil and second coil; Said first coil places the front of substrate, and said second coil places the back side of substrate, and an end of said first coil is drawn the feed end that is used to connect antenna-matching circuit; The other end is connected with an end of said second coil, and the end that said second coil is not connected with first coil is drawn the feed end that is used to connect said antenna-matching circuit.
Further, said first coil and second coil around to identical.
Further, also comprise bonnet, back cover or protecgulum, said NFC antenna is arranged on said bonnet, back cover or the protecgulum.
Further, said feed end is pogo pin or contact spring.
Further, be connected through covering copper vias between the link of said first coil and second coil.
In sum, the present invention places the both sides of substrate with the coil of NFC antenna, form identical around to two coils; Two coils, one end overlaps, and connects through covering copper vias, constitutes a complete NFC aerial coil loop; The other end is respectively drawn a feed end and is connected with match circuit; This mode can effectively be utilized the NFC antenna area, under the condition that does not change the NFC antenna gross area (outline), when reducing total live width, increases coil turn and antenna effective area; The enhance induction magnetic field intensity also improves induced electromotive force, promotes antenna performance.
Description of drawings
Fig. 1 is the sketch map of the close range wireless communication antenna of embodiment of the present invention;
Fig. 2 is the front schematic view of the close range wireless communication antenna of embodiment of the present invention;
Fig. 3 is the schematic rear view of the close range wireless communication antenna of embodiment of the present invention;
Fig. 4 is the structural representation of terminal equipment of the use NFC antenna of embodiment of the present invention.
Embodiment
The NFC antenna of this execution mode; Comprise: substrate, first coil and second coil; First coil places basic front, and second coil places the back side of substrate, and an end of first coil is drawn the feed end that is used to connect antenna-matching circuit; The other end is connected with an end of second coil, and the end that second coil is not connected with first coil is drawn the feed end that is used to connect antenna-matching circuit equally.
Substrate can be flexible PCB (FPC), and first coil and second coil place the both sides of FPC, first coil and second coil around to identical, form in the both sides of FPC identical around to two coils.
One end of first coil and second coil is overlapping, connects through covering copper vias at the place, lap position, forms a complete NFC aerial coil loop, and the other end of two coils is respectively drawn feed end, connects antenna-matching circuit.
First coil and second coil can be arbitrary shape.
First coil and second coil around to identical, therefore, the exciting current in the coil is an in-phase current.
The feed end that connects antenna-matching circuit can adopt Pogo-pin (pogo pin) or Clip (contact spring) etc.
Describe the present invention below in conjunction with accompanying drawing.
Shown in Fig. 1～3, the NFC antenna 10 of present embodiment comprises: place first coil 11 and second coil 12 of substrate (FPC) both sides, a wherein end of coil overlaps, and connects by covering copper vias 13, and the other end is respectively drawn the feed end that is used to connect antenna-matching circuit.
Two coils that cover the FPC both sides that copper vias 13 connects constitute a complete closed-loop path, first coil 11 and second coil 12 around to identical, so the exciting current of flowing through coil or induced current homophase.
When antenna was worked as transmitting antenna, the in-phase current in two coils in FPC both sides superposeed in the coil scope, had strengthened the magnetic flux density that is produced by the NFC antenna; When antenna is worked as reception antenna,, strengthened the induced electromotive force that produces by the NFC antenna owing to increased antenna effective area and coil turn.It is thus clear that this execution mode increases under the condition of the antenna gross area and total live width need not, and has increased the effective area of antenna, has strengthened magnetic flux density and induced electromotive force, has improved the communication distance and the signal quality of equipment.
As shown in Figure 4; This execution mode also provides a kind of terminal equipment that uses above-mentioned antenna; This terminal equipment; Comprise: mainboard 14, NFC antenna 10, antenna-matching circuit 15 and NFC chip 16, antenna-matching circuit 15 is arranged on the mainboard 14 with NFC chip 16, and NFC antenna 10 all is connected with antenna-matching circuit 15 with NFC chip 16.
The NFC antenna; Comprise: substrate, first coil and second coil; First coil places basic front, and second coil places the back side of substrate, and an end of first coil is drawn the feed end that is used to connect antenna-matching circuit; The other end is connected with an end of second coil, and the end that second coil is not connected with first coil is drawn the feed end that is used to connect antenna-matching circuit equally.
Substrate can be FPC, and first coil and second coil place the both sides of FPC, first coil and second coil around to identical, form in the both sides of FPC identical around to two coils.
One end of first coil and second coil is overlapping, connects through covering copper vias at the place, lap position, forms a complete NFC aerial coil loop, and the other end of two coils is respectively drawn feed end, connects antenna-matching circuit.
First coil and second coil can be arbitrary shape.The feed end that connects antenna-matching circuit can adopt Pogo-pin or Clip etc.
Terminal equipment also comprises bonnet 31, back cover 32 or protecgulum 33; The NFC antenna can be positioned on bonnet 31, back cover 32 or the protecgulum 33 of terminal equipment, and SPK (loud speaker), Camera (camera), LCD parts such as (LCDs) can be positioned at the NFC antenna footprint.
Terminal equipment can be equipment such as mobile phone, Pad (panel computer) and data card.
The NFC antenna of present embodiment and use the terminal equipment of this antenna places the FPC both sides with the NFC aerial coil, becomes the coil that two one ends overlap; Intersection connects through covering the copper hole, forms a complete NFC aerial coil loop, and draws a feed end that is used to connect antenna-matching circuit at another end points of two coils; As transmitting antenna the time; Make and the magnetic field mutual superposition that two coils produce strengthen magnetic flux density, the time as reception antenna; Make antenna effective area and coil turn increase; The enhance induction electromotive force promotes antenna performance under the condition that does not increase the antenna gross area and total live width, and reserves more free space for structure member.
The above is merely preferred embodiment of the present invention, and is in order to the restriction invention, not all within spirit of the present invention and principle, and any modification of being done, equal replacement, improvement etc. all should be included within protection scope of the present invention.
Claims (10)
1. close range wireless communication antenna; It is characterized in that, comprising: substrate, first coil and second coil, said first coil places the front of substrate; Said second coil places the back side of substrate; One end of said first coil is drawn the feed end that is used to connect antenna-matching circuit, and the other end is connected with an end of said second coil, and the end that said second coil is not connected with first coil is drawn the feed end that is used to connect said antenna-matching circuit.
2. antenna as claimed in claim 1 is characterized in that, said first coil and second coil around to identical.
3. antenna as claimed in claim 1 is characterized in that, said substrate is flexible PCB (FPC).
4. antenna as claimed in claim 1 is characterized in that, said feed end is pogo pin or contact spring.
5. antenna as claimed in claim 1 is characterized in that, is connected through covering copper vias between the link of said first coil and second coil.
6. terminal equipment; It is characterized in that; Comprise: mainboard, close range wireless communication (NFC) antenna, antenna-matching circuit and NFC chip, said antenna-matching circuit and NFC chip are arranged on the said mainboard, and said NFC antenna all is connected with said antenna-matching circuit with the NFC chip; Said NFC antenna comprises: substrate, first coil and second coil; Said first coil places the front of substrate, and said second coil places the back side of substrate, and an end of said first coil is drawn the feed end that is used to connect antenna-matching circuit; The other end is connected with an end of said second coil, and the end that said second coil is not connected with first coil is drawn the feed end that is used to connect said antenna-matching circuit.
7. terminal equipment as claimed in claim 6 is characterized in that, said first coil and second coil around to identical.
8. terminal equipment as claimed in claim 6 is characterized in that, also comprises bonnet, back cover or protecgulum, and said NFC antenna is arranged on said bonnet, back cover or the protecgulum.
9. terminal equipment as claimed in claim 6 is characterized in that, said feed end is pogo pin or contact spring.
10. terminal equipment as claimed in claim 6 is characterized in that, is connected through covering copper vias between the link of said first coil and second coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101130395A CN102646866A (en) | 2012-04-17 | 2012-04-17 | Near field communication (NFC) antenna and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101130395A CN102646866A (en) | 2012-04-17 | 2012-04-17 | Near field communication (NFC) antenna and terminal equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102646866A true CN102646866A (en) | 2012-08-22 |
Family
ID=46659536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101130395A Pending CN102646866A (en) | 2012-04-17 | 2012-04-17 | Near field communication (NFC) antenna and terminal equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102646866A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050779A (en) * | 2013-01-24 | 2013-04-17 | 青岛歌尔声学科技有限公司 | NFC (Near Field Communication) antenna, manufacturing method thereof and NFC communication device |
| CN104465067A (en) * | 2014-11-18 | 2015-03-25 | 东莞劲胜精密组件股份有限公司 | Wireless charging coil manufacturing method and wireless charging structure |
| CN104597089A (en) * | 2015-01-17 | 2015-05-06 | 辽东学院 | Wireless sensor |
| CN105098364A (en) * | 2015-09-09 | 2015-11-25 | 深圳市信维通信股份有限公司 | NFC (Near Field Communication) antenna structure based on metal back shell |
| CN105161824A (en) * | 2015-08-28 | 2015-12-16 | 魅族科技（中国）有限公司 | Antenna device and communication terminal |
| CN105655114A (en) * | 2014-11-12 | 2016-06-08 | 介面光电股份有限公司 | Film coil element and manufacturing method thereof, and charging device element having same |
| WO2017000769A1 (en) * | 2015-06-30 | 2017-01-05 | 比亚迪股份有限公司 | Nfc antenna |
| CN106329077A (en) * | 2016-09-26 | 2017-01-11 | 上海德门电子科技有限公司 | Double-sided board wire-based NFC (Near Field Communication) antenna and electronic device |
| CN107748594A (en) * | 2017-11-24 | 2018-03-02 | 深圳市实佳电子有限公司 | A kind of display screen for inserting NFC antenna |
| CN107968248A (en) * | 2016-10-19 | 2018-04-27 | 三星电子株式会社 | Electronic device including radiation |
| CN110082976A (en) * | 2019-05-14 | 2019-08-02 | 上海天马微电子有限公司 | Display module and display device |
| CN110941113A (en) * | 2019-11-27 | 2020-03-31 | 上海天马微电子有限公司 | Display device and manufacturing method thereof |
| CN113904104A (en) * | 2021-09-13 | 2022-01-07 | 深圳市有方科技股份有限公司 | NFC antenna and mobile device |
| WO2023184299A1 (en) * | 2022-03-31 | 2023-10-05 | 京东方科技集团股份有限公司 | Display device and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303054Y (en) * | 2008-08-27 | 2009-09-02 | 中兴通讯股份有限公司 | Electronic terminal device and near-field communication antenna thereof |
| KR20110035196A (en) * | 2009-09-30 | 2011-04-06 | 한국전기연구원 | Spiral antenna and wireless power transmission device using spiral antenna |
| CN202034476U (en) * | 2011-05-13 | 2011-11-09 | 联想移动通信科技有限公司 | Printed circuit board meander Bluetooth antenna and mobile terminal |
-
2012
- 2012-04-17 CN CN2012101130395A patent/CN102646866A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303054Y (en) * | 2008-08-27 | 2009-09-02 | 中兴通讯股份有限公司 | Electronic terminal device and near-field communication antenna thereof |
| KR20110035196A (en) * | 2009-09-30 | 2011-04-06 | 한국전기연구원 | Spiral antenna and wireless power transmission device using spiral antenna |
| CN202034476U (en) * | 2011-05-13 | 2011-11-09 | 联想移动通信科技有限公司 | Printed circuit board meander Bluetooth antenna and mobile terminal |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103050779B (en) * | 2013-01-24 | 2015-10-28 | 青岛歌尔声学科技有限公司 | A kind of NFC antenna and manufacture method thereof and a kind of NFC communication equipment |
| CN103050779A (en) * | 2013-01-24 | 2013-04-17 | 青岛歌尔声学科技有限公司 | NFC (Near Field Communication) antenna, manufacturing method thereof and NFC communication device |
| CN105655114A (en) * | 2014-11-12 | 2016-06-08 | 介面光电股份有限公司 | Film coil element and manufacturing method thereof, and charging device element having same |
| CN104465067A (en) * | 2014-11-18 | 2015-03-25 | 东莞劲胜精密组件股份有限公司 | Wireless charging coil manufacturing method and wireless charging structure |
| CN104597089A (en) * | 2015-01-17 | 2015-05-06 | 辽东学院 | Wireless sensor |
| CN104597089B (en) * | 2015-01-17 | 2017-04-19 | 辽东学院 | Wireless sensor |
| CN106329096A (en) * | 2015-06-30 | 2017-01-11 | 比亚迪股份有限公司 | Nfc antenna |
| WO2017000769A1 (en) * | 2015-06-30 | 2017-01-05 | 比亚迪股份有限公司 | Nfc antenna |
| CN105161824A (en) * | 2015-08-28 | 2015-12-16 | 魅族科技（中国）有限公司 | Antenna device and communication terminal |
| CN105161824B (en) * | 2015-08-28 | 2018-05-08 | 魅族科技（中国）有限公司 | A kind of antenna assembly and communication terminal |
| CN105098364A (en) * | 2015-09-09 | 2015-11-25 | 深圳市信维通信股份有限公司 | NFC (Near Field Communication) antenna structure based on metal back shell |
| CN105098364B (en) * | 2015-09-09 | 2018-02-06 | 深圳市信维通信股份有限公司 | NFC antenna structure based on metal rear shell |
| CN106329077A (en) * | 2016-09-26 | 2017-01-11 | 上海德门电子科技有限公司 | Double-sided board wire-based NFC (Near Field Communication) antenna and electronic device |
| CN107968248A (en) * | 2016-10-19 | 2018-04-27 | 三星电子株式会社 | Electronic device including radiation |
| CN107748594A (en) * | 2017-11-24 | 2018-03-02 | 深圳市实佳电子有限公司 | A kind of display screen for inserting NFC antenna |
| CN110082976A (en) * | 2019-05-14 | 2019-08-02 | 上海天马微电子有限公司 | Display module and display device |
| US11081506B2 (en) | 2019-05-14 | 2021-08-03 | Shanghai Tianma Micro-electronics Co., Ltd. | Display component and display device |
| CN110941113A (en) * | 2019-11-27 | 2020-03-31 | 上海天马微电子有限公司 | Display device and manufacturing method thereof |
| CN110941113B (en) * | 2019-11-27 | 2023-08-25 | 上海天马微电子有限公司 | Display device and manufacturing method thereof |
| CN113904104A (en) * | 2021-09-13 | 2022-01-07 | 深圳市有方科技股份有限公司 | NFC antenna and mobile device |
| WO2023184299A1 (en) * | 2022-03-31 | 2023-10-05 | 京东方科技集团股份有限公司 | Display device and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102646866A (en) | Near field communication (NFC) antenna and terminal equipment | |
| KR101609733B1 (en) | Antenna module package, antenna module package circuit, battery pack including the same and mobile device including the same | |
| WO2014167881A1 (en) | Communication terminal | |
| JP6436246B2 (en) | ANTENNA DEVICE AND ELECTRONIC DEVICE | |
| CN102074788A (en) | NFC (Near Field Communication) antenna and mobile phone using same | |
| CN107851893B (en) | Conducting plate used as near field communication antenna and terminal | |
| TWI479736B (en) | Handheld device | |
| WO2015108054A1 (en) | Antenna device and electronic apparatus | |
| JP5950549B2 (en) | Antenna device, communication device | |
| JP2013146050A (en) | Antenna device and electronic apparatus | |
| US20190235584A1 (en) | Electronic device | |
| KR101485569B1 (en) | Near Field Communication antenna for mobile handset with metallic case | |
| KR20160063191A (en) | Antenna device and Near field communication device including the same | |
| WO2015033561A1 (en) | Antenna device and electronic device | |
| CN104682005A (en) | Antenna structure | |
| CN105742782A (en) | Hybrid-type NFC antenna and the electronic device thereof | |
| US10224596B2 (en) | Antenna device and electronic apparatus | |
| KR101491472B1 (en) | Antenna Apparatusfor Wireless Power Transfer | |
| WO2015064762A1 (en) | Antenna apparatus and electronic device | |
| KR20160094017A (en) | Antenna module package and antenna module package circuit | |
| CN109075431B (en) | Antenna device | |
| JP6264504B2 (en) | Antennas and electronics | |
| CN112736412A (en) | Hybrid structure of wireless charging antenna and NFC antenna, and electronic device | |
| JP2017028482A (en) | Antenna device | |
| CN105161824A (en) | Antenna device and communication terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |