CN104659470A - Near field communication antenna assembly and wireless terminal - Google Patents
Near field communication antenna assembly and wireless terminal Download PDFInfo
- Publication number
- CN104659470A CN104659470A CN201510106491.2A CN201510106491A CN104659470A CN 104659470 A CN104659470 A CN 104659470A CN 201510106491 A CN201510106491 A CN 201510106491A CN 104659470 A CN104659470 A CN 104659470A
- Authority
- CN
- China
- Prior art keywords
- near field
- antenna coil
- field communication
- back cover
- hole
- 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
Landscapes
- Telephone Set Structure (AREA)
Abstract
The invention provides a near field communication antenna assembly and a wireless terminal. The near field communication antenna assembly comprises a near field antenna coil, a non-metal substrate, a metal back cover of the wireless terminal and a communication module, wherein the near field antenna coil is attached to the non-metal substrate; a through hole is formed on the metal back cover, the metal back cover is attached below the through hole, and at least part of the near field antenna coil is located in a coverage of the through hole; a touch down point is arranged on the metal back cover, a first end point of the near field antenna coil is connected with the touch down point, and a second end point of the near field antenna coil is connected with the communication module. The near field communication antenna assembly is simple in structural design and does not generate adverse effects on the appearance of the wireless terminal.
Description
Technical field
The present invention relates to wireless communication technology field, particularly relate to a kind of near-field communication aerial assembly and wireless terminal.
Background technology
Everybody proposes more and more higher demand to the outward appearance of wireless terminal device and material at present, for mobile phone, market there is a lot of metal-back class mobile phone, typically as Iphone5 & 6 series of Apple, the mobile phones such as the HTC one of HTC company.On the other hand, popular gradually along with functions such as mobile payment, short-range data exchanges, radio-frequency (RF) identification (Radio Frequency Identification, RFID), the application of near-field communication in the wireless terminal devices such as mobile phone such as wireless near field communication (Near Field Communication, the be called for short NFC) research of more and more being arrived be called for short:.
Under the trend of the wireless terminal devices such as mobile phone towards future developments such as lightening, metal-backs (such as metal back cover), due to the shielding action of metal material meeting radio frequency signal output, cause near-field communication aerial such as NFC antenna cannot with metal-back beyond space carry out data communication, therefore, in metal-back class mobile phone, how to realize the difficult point that near-field communication aerial is the design of current industry.
NFC antenna is a kind of typical near-field communication aerial, example is designed to NFC antenna, the existing scheme designing NFC antenna in metal back cover is substantially all adopt the scheme of certain Japanese firm, its design as shown in Figure 1: in metal back cover 101, offer a through hole 102.The center of through hole 102 has a groove 104, and this groove 104 reaches metal back cover 101 edge always.NFC antenna coil 103 is positioned under metal back cover 101,1A and 1B is two end points of NFC antenna coil 103, is connected with NFC impedance matching circuit and NFC chip.
In above-mentioned existing scheme, need to offer a groove 104 be connected with metal back cover 101 edge at the center of through hole 102, this fluting design has considerable influence to the outward appearance of the wireless terminal devices such as mobile phone, and intermetallic composite coating groove cost is higher.
Summary of the invention
The invention provides a kind of near-field communication aerial assembly and wireless terminal, by simple near field antenna project organization while realizing near field antenna signal transmitting and receiving function, effectively reduce design cost and adverse effect do not brought to the outward appearance of affiliated wireless terminal.
The invention provides a kind of near-field communication aerial assembly, comprising:
The metal back cover of near field antenna coil, non-metal base plate, wireless terminal and communication module; Described near field antenna coil is fitted on described non-metal base plate;
Described metal back cover offers through hole, and under described non-metal base plate is fitted in described through hole, described near field antenna coil is positioned at the coverage of described through hole at least partly;
Described metal back cover is provided with earth point, and the first end points of described near field antenna coil is connected with described earth point, and the second end points of described near field antenna coil is connected with described communication module.
The invention provides a kind of wireless terminal, comprise near-field communication aerial assembly as above.
Near-field communication aerial assembly provided by the invention and wireless terminal, the metal back cover of wireless terminal is offered a through hole, and fill this through hole non-metal base plate on layout near-field communication aerial coil, this aerial coil is made to be positioned at this through hole coverage at least partially, and, this aerial coil end points is connected in metal back cover, another end points of this aerial coil is connected in peripheral communication module, under the effect of pumping signal, form single-ended field signal, avoid metal back cover offsetting an influence to signal.This near-field communication aerial modular construction simplicity of design, can not have a negative impact to affiliated wireless terminal outward appearance.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing a kind of near-field communication aerial;
The composition structural representation of the near-field communication aerial assembly that Fig. 2 provides for the embodiment of the present invention one;
Fig. 3 is the antenna coil construction schematic diagram of typical winding mode;
The cross-sectional view of the near-field communication aerial assembly that Fig. 4 provides for the embodiment of the present invention one;
The schematic diagram of the near field antenna coil connected mode that Fig. 5 provides for one embodiment of the invention;
The schematic diagram of the near field antenna coil connected mode that Fig. 6 provides for another embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The composition structural representation of the near-field communication aerial assembly that Fig. 2 provides for the embodiment of the present invention one, as shown in Figure 2, this near-field communication aerial assembly comprises:
The metal back cover 201 of near field antenna coil 203, non-metal base plate 204, wireless terminal and communication module (not shown in Fig. 2).Wherein, described near field antenna coil 203 is fitted on described non-metal base plate 204;
Described metal back cover 201 offers through hole 202, and described non-metal base plate 204 is fitted in described through hole 202 times, and described near field antenna coil 203 is positioned at the coverage of described through hole 202 at least partly;
Described metal back cover 201 is provided with earth point 2C, and the first end points 2A of described near field antenna coil 203 is connected with described earth point 2C, and the second end points 2B of described near field antenna coil 203 is connected with described communication module.
Near-field communication aerial described in this enforcement comprises short-range communication NFC antenna, also can be RFID antenna.
In the present embodiment, the metal back cover 201 of the wireless terminal such as equipment such as smart mobile phone, panel computer is offered a through hole 202, the shape of this through hole 202 can be circle as shown in Figure 2, also can be such as square and other rule or irregular closed figures.This through hole 202 can share with the shooting head bore be arranged in metal back cover 201 or the lamp hole that throws light on, and also can be the shape of through holes consistent with terminal logo figure additionally offered.
Fit in the below of this through hole 202 non-metal base plate 204, this non-metal base plate 204 can be such as glass material, ceramic material etc.This non-metal base plate 204 to be fitted near field antenna coil 203, the shape of this near field antenna coil 203 can be as shown in Figure 3 in several typical shape, but not as limit.Preferably, this near field antenna coil 203 is all positioned at the coverage of this through hole 202, in general, also partly can be positioned at the coverage of this through hole 202.
In the present embodiment, in two end points of near field antenna coil 203, one of them end points 2A is connected with metal back cover 201, and be connected to specifically on the earth point 2C that is arranged in metal back cover 201, another end points 2B is connected with near-field communication module.This communication module can be arranged on a printed circuit board (PCB) (pcb board), specifically, this communication module comprised in this near-field communication aerial assembly specifically comprises: antenna impedance matching 401 and the near field communications chip 402 be connected with the output of described antenna impedance matching 401.Thus the second end points 2B of described near field antenna coil 203 is connected with this antenna impedance matching 401.
In actual applications, for NFC antenna assembly, as shown in Figure 4, Fig. 4 shows two different NFC antenna modular constructions.The placement position of NFC antenna as shown in Figure 4, has two kinds of implementations at present, a kind of non-metal base plate 204 back side being traditional FPC and being adhesive in filling vias 202 together with ferrite.Another kind be NFC cabling by LDS, spray printing, the modes such as plating directly realize in non-metal base plate 204, and ferrite is fixed on non-metal base plate 204 back side by the mode such as gluing.
In the present embodiment, the metal back cover of wireless terminal is offered a through hole, and fill this through hole non-metal base plate on layout near-field communication aerial coil, this aerial coil is made to be positioned at this through hole coverage at least partially, and, this aerial coil end points is connected in metal back cover, another end points of this aerial coil is connected in peripheral communication module, form single-ended mode, avoid producing inverse current, thus avoid metal back cover offsetting an influence to signal.This near-field communication aerial modular construction simplicity of design, can not have a negative impact to affiliated wireless terminal outward appearance.
Optionally, as shown in Figure 5, the second end points 2B of near field antenna coil 203 can be connected with the antenna impedance matching 401 in above-mentioned communication module by single-ended transfer difference converter 301.
Particularly, one end of single-ended transfer difference converter 301 is connected with the second end points 2B of described near field antenna coil 203, and the other end of described single-ended transfer difference converter 301 is connected with two inputs of described antenna impedance matching 401.
This single-ended transfer difference converter 301 is for converting the single-ended signal of the second end points 2B near field antenna coil 203 to differential signal.This single-ended transfer difference converter 301 can realize with operational amplifier or transformer, preferably adopts transformer to realize.Specifically, transformer realizes being adopt centre cap or Double-wire parallel wound mode to realize difference output by secondary coil.
Optionally, as shown in Figure 6, the second end points 2B of near field antenna coil 203 also can realize being connected with the antenna impedance matching 401 in above-mentioned communication module in the following way:
Second end points 2B of near field antenna coil 203 is connected with an input of described antenna impedance matching 401, another input open circuit of described antenna impedance matching 401.
In above-mentioned Fig. 5 and Fig. 6 two kinds of optional manner, preferably adopt mode as shown in Figure 5.In addition, as shown in Figure 5 or Figure 6, optionally, also comprise in described communication module:
Signal amplifier 403, this signal amplifier 403 is connected between described antenna impedance matching 401 and described near field communications chip 402.This signal amplifier 403 is particularly useful for when antenna size is less, when signal is more weak.
On the basis of the various embodiments described above, the embodiment of the present invention also provides a kind of wireless terminal, and this wireless terminal can be such as smart mobile phone, panel computer etc., and it comprises arbitrary described near-field communication aerial assembly in as above embodiment.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a near-field communication aerial assembly, is characterized in that, comprising:
The metal back cover of near field antenna coil, non-metal base plate, wireless terminal and communication module; Described near field antenna coil is fitted on described non-metal base plate;
Described metal back cover offers through hole, and under described non-metal base plate is fitted in described through hole, described near field antenna coil is positioned at the coverage of described through hole at least partly;
Described metal back cover is provided with earth point, and the first end points of described near field antenna coil is connected with described earth point, and the second end points of described near field antenna coil is connected with described communication module.
2. near-field communication aerial assembly according to claim 1, is characterized in that, described communication module comprises:
Antenna impedance matching and the near field communications chip be connected with the output of described antenna impedance matching;
Second end points of described near field antenna coil is connected with described antenna impedance matching.
3. near-field communication aerial assembly according to claim 2, is characterized in that, also comprise:
Single-ended transfer difference converter, one end of described single-ended transfer difference converter is connected with the second end points of described near field antenna coil, and the other end of described single-ended transfer difference converter is connected with two inputs of described antenna impedance matching.
4. near-field communication aerial assembly according to claim 2, is characterized in that, the second end points of described near field antenna coil is connected with an input of described antenna impedance matching, another input open circuit of described antenna impedance matching.
5. near-field communication aerial assembly according to claim 2, is characterized in that, also comprises in described communication module:
Signal amplifier, described signal amplifier is connected between described antenna impedance matching and described near field communications chip.
6. near-field communication aerial assembly according to any one of claim 1 to 5, is characterized in that, described through hole is with to be arranged on the shooting head bore in described metal back cover or the lamp hole that throw light on shared.
7. near-field communication aerial assembly according to any one of claim 1 to 5, is characterized in that, described near-field communication aerial comprises short-range communication NFC antenna.
8. a wireless terminal, is characterized in that, comprises the near-field communication aerial assembly according to any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106491.2A CN104659470A (en) | 2015-03-10 | 2015-03-10 | Near field communication antenna assembly and wireless terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510106491.2A CN104659470A (en) | 2015-03-10 | 2015-03-10 | Near field communication antenna assembly and wireless terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104659470A true CN104659470A (en) | 2015-05-27 |
Family
ID=53250331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510106491.2A Pending CN104659470A (en) | 2015-03-10 | 2015-03-10 | Near field communication antenna assembly and wireless terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104659470A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245652A (en) * | 2015-10-27 | 2016-01-13 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN105261834A (en) * | 2015-09-16 | 2016-01-20 | 惠州硕贝德无线科技股份有限公司 | Near-field communication antenna assembly and mobile equipment |
| CN105609949A (en) * | 2016-03-18 | 2016-05-25 | 联想(北京)有限公司 | Electronic equipment |
| WO2017000768A1 (en) * | 2015-06-30 | 2017-01-05 | 比亚迪股份有限公司 | Nfc antenna and mobile terminal having same |
| CN107426360A (en) * | 2017-06-09 | 2017-12-01 | 禾邦电子(苏州)有限公司 | A kind of electric terminal |
| CN108370087A (en) * | 2015-12-15 | 2018-08-03 | 格马尔托股份有限公司 | Single side Anneta module with CMS devices |
| CN110324055A (en) * | 2019-06-28 | 2019-10-11 | 维沃移动通信有限公司 | A kind of terminal device |
| WO2021043199A1 (en) * | 2019-09-04 | 2021-03-11 | Oppo广东移动通信有限公司 | Nfc antenna used for mobile terminal, and nfc communication apparatus |
| CN112928438A (en) * | 2019-11-20 | 2021-06-08 | 华为技术有限公司 | Cover plate and electronic equipment |
-
2015
- 2015-03-10 CN CN201510106491.2A patent/CN104659470A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017000768A1 (en) * | 2015-06-30 | 2017-01-05 | 比亚迪股份有限公司 | Nfc antenna and mobile terminal having same |
| CN105261834B (en) * | 2015-09-16 | 2019-02-01 | 惠州硕贝德无线科技股份有限公司 | Near field communication antenna component and mobile device |
| CN105261834A (en) * | 2015-09-16 | 2016-01-20 | 惠州硕贝德无线科技股份有限公司 | Near-field communication antenna assembly and mobile equipment |
| CN105245652A (en) * | 2015-10-27 | 2016-01-13 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN108370087B (en) * | 2015-12-15 | 2020-10-09 | 格马尔托股份有限公司 | Single-sided antenna module with CMS device |
| CN108370087A (en) * | 2015-12-15 | 2018-08-03 | 格马尔托股份有限公司 | Single side Anneta module with CMS devices |
| CN105609949B (en) * | 2016-03-18 | 2018-08-10 | 联想(北京)有限公司 | A kind of electronic equipment |
| CN105609949A (en) * | 2016-03-18 | 2016-05-25 | 联想(北京)有限公司 | Electronic equipment |
| CN107426360A (en) * | 2017-06-09 | 2017-12-01 | 禾邦电子(苏州)有限公司 | A kind of electric terminal |
| CN110324055A (en) * | 2019-06-28 | 2019-10-11 | 维沃移动通信有限公司 | A kind of terminal device |
| WO2021043199A1 (en) * | 2019-09-04 | 2021-03-11 | Oppo广东移动通信有限公司 | Nfc antenna used for mobile terminal, and nfc communication apparatus |
| US11978952B2 (en) | 2019-09-04 | 2024-05-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | NFC antenna and NFC communication apparatus for mobile terminal |
| CN112928438A (en) * | 2019-11-20 | 2021-06-08 | 华为技术有限公司 | Cover plate and electronic equipment |
| CN112928438B (en) * | 2019-11-20 | 2023-10-20 | 华为技术有限公司 | Cover plate and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104659470A (en) | Near field communication antenna assembly and wireless terminal | |
| CN204614924U (en) | Near-field communication aerial assembly and wireless terminal | |
| CN201303054Y (en) | Electronic terminal device and near-field communication antenna thereof | |
| CN108321542B (en) | Antenna system and communication terminal applying same | |
| US10658870B2 (en) | Combo antenna unit and wireless power receiving module comprising same | |
| US10923807B2 (en) | Combo type antenna module | |
| US9294871B2 (en) | Electronic mobile device | |
| KR102388353B1 (en) | Near field communication antenna, near field communication device and mobile device having the same | |
| US11087912B2 (en) | Magnetic field shield sheet for wireless power transmission and wireless power receiving module comprising same | |
| US10916834B2 (en) | Conductive plate used as near field communication antenna and terminal | |
| CN104836031A (en) | Antenna and mobile terminal | |
| CN204760546U (en) | Antenna system and applied this antenna system's communication terminal | |
| CN102074788A (en) | NFC (Near Field Communication) antenna and mobile phone using same | |
| CN105428805A (en) | Antenna device, signal transmission method and wearable device | |
| TW201624826A (en) | Hybrid-type NFC antenna and the electronic device thereof | |
| CN105556749A (en) | Apparatus and methods for wireless communication | |
| CN103050779A (en) | NFC (Near Field Communication) antenna, manufacturing method thereof and NFC communication device | |
| US9294156B2 (en) | Handheld device having multiple NFC reading directions | |
| CN203850426U (en) | Antenna of communication device equipped with metallic back cover | |
| CN103915681A (en) | Antenna | |
| KR101758133B1 (en) | Laminating structure and mobile device with the same | |
| CN202434688U (en) | Near-field communication antenna | |
| CN102789590B (en) | Radio-frequency SIM card and there is the mobile communication equipment of this radio-frequency SIM card | |
| CN103943942A (en) | Antenna and portable device having the same | |
| KR20130127853A (en) | Loop antenna having multilayer structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |
|
| RJ01 | Rejection of invention patent application after publication |