CN104682005A - Antenna structure - Google Patents
Antenna structure Download PDFInfo
- Publication number
- CN104682005A CN104682005A CN201310638651.9A CN201310638651A CN104682005A CN 104682005 A CN104682005 A CN 104682005A CN 201310638651 A CN201310638651 A CN 201310638651A CN 104682005 A CN104682005 A CN 104682005A
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- slot
- metallic plate
- coil unit
- antenna structure
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Abstract
The invention provides an antenna structure. The antenna structure comprises a metal plate and a coil unit, wherein the metal plate comprises a gap, and the gap penetrates through the metal plate and is used for separating the metal plate into a first metal plate area and a second metal plate area; the center of the coil unit comprises a coil opening; the coil unit is arranged at one side of the metal plate, and at least one part of the coil opening of the coil unit is exposed by the gap of the metal plate.
Description
Technical field
The invention relates to a kind of antenna structure, refer to that metallic plate has the antenna structure of slot especially.
Background technology
Near-field communication (Near Field Communication, NFC) is a kind of short-range high frequency wireless communication technology, and its main characteristics makes between each electronic equipment carrying out contactless Point-to-Point Data Transmission rapidly between short distance.Because the device with near-field communication chip need not get final product mutual induction via contact, therefore when near field communication technology is applied to Mobile Commerce, ecommerce, and identification etc. has suitable advantage.And popularizing gradually along with mobile phone, existing near field communication technology is applied in mobile phone at present, to increase consumer's convenience on the living conditions, for example, one mobile phone with a near-field communication chip card can utilize this near-field communication chip card as electronic money bag to buy commodity, or utilizes this near-field communication chip card as identification documents.So, only need with mobile phone when consumer gos out, and do not need to carry wallet in addition and certificate is gone out.
But, in the various application of near field communication technology now, because the distance of reaction between carrier and induction installation has certain restriction, therefore often there is user carrier to be close to induction installation to carry out induction operation, so cause the inconvenience in many uses, if and near-field communication is applied to the carrier containing metal shell, then metal shell can cover the magnetic field of near-field communication for transmitting signals and energy, and the distance of reaction between carrier and induction installation is reduced.In view of this, the present inventor concentrates on studies and coordinates the utilization of scientific principle, and proposes a kind of reasonable in design and effectively improve the present invention of the problems referred to above.
Summary of the invention
Main purpose of the present invention is to provide a kind of antenna structure, utilizes and offers slot at metallic plate, in the mode of the coil aperture of exposed coil unit, effectively to promote effective identification distance and the data transmission quality thereof of radio frequency identification.
To achieve these goals, the invention provides a kind of antenna structure, it comprises: a metallic plate and a coil unit.Metallic plate comprises a slot, slot penetrating metal plate, metallic plate to be divided into one first metal plate area and one second metal plate area.Coil unit center comprises a coil aperture, and coil unit is arranged at the side of metallic plate, and the coil aperture of the corresponding exposed coil unit of the slot of metallic plate at least partially.
Say further, slot can be provided with an insulant, to connect the first metal plate area and the second metal plate area.Metallic plate is arranged at the side of coil unit, and the slot of metallic plate can exposed 1/3 coil aperture.Slot comprises at least two slot portions, and respectively this slot portion is interconnected.This slot comprises one first slot portion and one second slot portion, this the first slot portion and this second slot portion are interconnected, when this metallic plate is arranged at the side of this coil unit, this coil aperture of this first slot portion or this second slot portion this coil unit exposed; This slot comprises one first slot portion, one second slot portion and a treble-slot portion, this the second slot portion is interconnected with this first slot portion and this treble-slot portion respectively, when this metallic plate is arranged at the side of this coil unit, this coil aperture of this first slot portion, this second slot portion or this treble-slot portion this coil unit exposed.The both ends open of slot can be arranged at metallic plate respectively different dual-side or identical side on; For example, metallic plate can be the rectangular panel body comprising one first minor face, one second minor face, one first long limit and one second long limit, the one end open of slot can be arranged at the first minor face, the second minor face, the first long limit and the second long limit one of them, the other end opening of slot can be then be arranged at the first minor face, the second minor face, the first long limit and the second long limit one of them.This coil unit is arranged on a substrate, and this metallic plate is covered on this substrate, and this coil aperture of corresponding this coil unit exposed of this slot of this metallic plate at least partially.This substrate also comprises a feeding portion, and this feeding portion comprises two load points, and the two ends of this coil unit are connected to respectively this load point respectively.The sense of current of coil unit is identical with the inductive current direction of the first metal plate area of metallic plate and the second metal plate area.
Beneficial effect of the present invention can be, on the present invention's metallic plate in the antenna structure, be provided with the slot that penetrates this metallic plate, with the coil aperture of exposed coil unit, so as to effective identification distance and the data transmission quality thereof of radio frequency identification effectively can be promoted.
Further understand feature of the present invention and technology contents for enable, refer to following detailed description for the present invention and accompanying drawing, but institute's accompanying drawings only provides with reference to and use is described, be not used for the present invention's in addition limitr.
Accompanying drawing explanation
Fig. 1 is the first schematic diagram of the first embodiment of antenna structure of the present invention;
Fig. 2 is the second schematic diagram of the first embodiment of antenna structure of the present invention;
Fig. 3 is another schematic diagram of the first embodiment of antenna structure of the present invention;
Fig. 4 is the first schematic diagram of the second embodiment of antenna structure of the present invention;
Fig. 5 is the second schematic diagram of the second embodiment of antenna structure of the present invention;
Fig. 6 is another schematic diagram of the second embodiment of antenna structure of the present invention;
Fig. 7 is the first schematic diagram of the 3rd embodiment of antenna structure of the present invention;
Fig. 8 is the second schematic diagram of the 3rd embodiment of antenna structure of the present invention;
Fig. 9 is another schematic diagram of the 3rd embodiment of antenna structure of the present invention;
Figure 10 is the schematic diagram of the 4th embodiment of antenna structure of the present invention.
Description of reference numerals:
1-antenna structure; 10-metallic plate; 101-first metal plate area; 102-second metal plate area; 11-slot; 111-first slot portion; 112-second slot portion; 113-treble-slot portion; 20-coil unit; 201-coil aperture; 30-substrate; 301-feeding portion; 31-connecting line; 40-insulant; H1-slit-widths; H2-coil aperture width; The L1-coil unit sense of current; L2-first metal plate area inductive current direction; L3-second metal plate area inductive current direction.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
(the first embodiment)
See also Fig. 1 and Fig. 2, it is the schematic diagram of the first embodiment of antenna structure of the present invention.As shown in the figure, antenna structure 1 comprises: metallic plate 10 and a coil unit 20.Metallic plate 10 includes a slot 11.The both ends open of slot 11 is arranged at the different dual-side of metallic plate 10 respectively, be such as metallic plate 10 two corresponding long limits (or minor face) on, and this metallic plate 10 is divided into one first metal plate area 101 and one second metal plate area 102 according to this.In actual applications, the both ends open of slot 11 can be according to demand, and on the corresponding dual-side being arranged at metallic plate 10 respectively or adjacent dual-side, is not limited in graphic; The external form of metallic plate 10 can also be any moulding according to demand.
The center of coil unit 20 has a coil aperture 201.As shown in Figure 2, when metallic plate 10 is covered on the top of coil unit 20, the coil aperture 201 of the exposed coil unit 20 of slot 11 of metallic plate 10 at least partially.In actual applications, preferably, can be that the width H1 of slot 11 is at least greater than 1/3rd of the width H2 of coil aperture 201; Can be expressed as in mathematical terms: H1>H2/3.Wherein, metallic plate 10 and coil unit 20 are selected its material according to needed for reality, can be preferably copper.In addition, the external form (similar rectangle) of the coil unit 20 in graphic is only a wherein demonstration aspect, not as limit, such as, also can be circular.What illustrate is, in diagram, the external form of two corresponding sides of the slot 11 of metallic plate 10 is for two approximately parallel sides, in actual applications, not as limit, for example, the dual-side of described slot 11 can also be uneven, that is, the both ends open of slot 11 can be arranged on the not corresponding position of metallic plate 10.
As shown in Figure 3, slot 11 can correspond to the position of the coil aperture 201 of coil unit 20, and there is different width sizes, for example, the position that slot 11 corresponds to coil aperture 201 can have relatively large width (preferably, be greater than 1/3rd of coil aperture 201), the width of slot 11 remainder (being not used to the part of exposed coil aperture 201) then can be relatively little.It is worth mentioning that, in the part of the central wider width of the present embodiment slot 11, its external form is for rectangle, practical application then can be designed according to needed for reality, for example, can be that the external form of foundation coil aperture 201 decides, such as coil aperture 201 be circular, the place that then center width of slot 11 is wider, then can correspondence do circular.
(the second embodiment)
See also Fig. 4 and Fig. 5, it is the schematic diagram of the second embodiment of antenna structure of the present invention.Be different from above-described embodiment, the corresponding dual-side being arranged at metallic plate 10 respectively by the both ends open of the slot 11 of metallic plate 10, such as on two long limits and two minor faces, the present embodiment is enumerated and is arranged on the adjacent side of metallic plate 10 respectively by the both ends open of slot 11, be such as the long limit that wherein one end of slot 11 is arranged at metallic plate 10, and the other end of slot 11 is arranged on the minor face of metallic plate 10.As shown in the figure, antenna structure 1 comprises: metallic plate 10, coil unit 20 and a substrate 30.Metallic plate 10 includes a slot 11, and it penetrates this metallic plate 10, and according to this metallic plate 10 is divided into one first metal plate area 101 and one second metal plate area 102.The both ends open of slot 11 is arranged at a wherein minor face and the wherein long limit of metallic plate 10 respectively, and presents the external form being similar to L; Say further, slot 11 can include one first slot portion 111 and one second slot portion 112, and the first slot portion 111 and the second slot portion 112 are interconnected.Special instruction, the graphic middle slot 11 of the present embodiment comprises the first slot portion 111 of two intercommunications and the second slot portion 112 is example, but be not limited thereto, and the slot portion that slot 11 can also be interconnected by multistage forms.Coil unit 20 includes a coil aperture 201, and coil unit 20 is arranged on substrate 30.Preferably, substrate 30 can be without copper base, such as, be glass fibre material (FR4 material).
Metallic plate 10 is arranged on substrate 30, and (can be preferably the coil aperture 201 of exposed 1/3) at least partially of the coil aperture 201 of the exposed coil unit of slot 11 20 of metallic plate 10.Wherein, substrate 30 can be the size being less than or equal to metallic plate 10, and coil unit 20 can be the modes such as bonding, gummed, welding be fixed on substrate 30, do not add restriction at this.It is worth mentioning that, though be the coil aperture 201 of the first exposed coil unit 20 in slot portion 111 with metallic plate 10 in graphic, but be not limited thereto, metallic plate 10 can be through any position (such as: the second slot portion 112 or two junctions, slot portion) of slot 11 with the coil aperture 201 of exposed coil unit 20.
In addition, as shown in Figure 6, in other aspect, slot 11 can be the external form presenting circular arc, and utilizes the coil aperture 201 of the exposed coil unit 20 of the middle segmental arc of slot 11., graphic middle the illustrated slit-widths of the present embodiment and external form thereof that be only a wherein demonstration aspect, practical application all can be converted on demand lay special stress on.
(the 3rd embodiment)
See also Fig. 7 and Fig. 8, it is the schematic diagram of the 3rd embodiment of antenna structure of the present invention.As shown in the figure, antenna structure 1 comprises: metallic plate 10, coil unit 20 and a substrate 30; The present embodiment and above-described embodiment difference are: the both ends open of the slot 11 of metallic plate 10 can be arranged on the same side of metallic plate 10; Slot 11 can include one first slot portion 111,1 second slot portion 112 and a treble-slot portion 113, and the second slot portion 112 is interconnected with the first slot portion 111 and treble-slot portion 113 respectively.As shown in Figure 8, the size of substrate 30 and the position of setting thereof, can be converted according to actual demand, it can be such as the size that substrate 30 is less than or equal to metallic plate 10, and wherein at least one side of substrate 30 can be trim with metallic plate 10, and the coil aperture 201 of coil unit 20 can be correspondence is positioned at the position in the second slot portion 112; In other words, when metallic plate 10 is arranged on the substrate 30 being provided with coil unit 20, can be utilize the second slot portion 112 of metallic plate 10 with the coil aperture 201 of exposed coil unit 20; Certainly, in other aspect, also can be the part utilizing the first slot portion 111 of metallic plate 10, treble-slot portion 113 or each slot portion to be connected, carry out the coil aperture 201 of exposed coil unit 20.As shown in Figure 9, in other special applications, the slot 11 of metallic plate 10 can be more the external form with circular arc; And a side of substrate 30 can be trim with metallic plate 10, and it can be the coil aperture 201 utilizing the exposed coil unit 20 of the stage casing circular arc portion of the slot 11 of metallic plate 10.
(the 4th embodiment)
Refer to Figure 10, it is the schematic diagram of the 4th embodiment of antenna structure of the present invention.As shown in the figure, antenna structure 1 comprises metallic plate 10, coil unit 20 and a substrate 30.Metallic plate 10 includes a slot 11, this slot 11 penetrates this metallic plate 10, and according to this metallic plate 10 is divided into one first metal plate area 101 and one second metal plate area 102, and be filled with an insulant 40 in slot 11, in order to the first metal plate area 101 and the second metal plate area 102 of connection metal plate 10.Wherein, insulant 40 is selected according to actual demand, such as, be plastics or glass etc.Coil unit 20 is arranged on substrate 30.Substrate 30 can include a feeding portion 301, and it can include two load points (non-label), and the two ends of coil unit 20 can be connected to respectively this load point respectively; For example, substrate 30 can include a connecting line 31 relative to the another side being provided with coil unit 20, and its two ends are connected to the load point of non-connecting coil unit 20 and the end points at coil unit 20 center respectively.In addition, it is worth mentioning that, slot 11 pattern of the graphic middle metallic plate 10 of the present embodiment can be the pattern of above-mentioned any embodiment, or can be according to demand conversion, is not limited to graphic.
In preferably practical application, above-mentioned the present embodiment can be applied to hand-held electronic communication device, such as, be intelligent mobile phone, flat computer etc.And described metallic plate 10 can be the shell as hand-held electronic communication device; Or can be the inside that metallic plate 10 is arranged at the plastic casing of hand-held electronic communication device, and can be that plastic casing is connected with the above-mentioned insulant 40 clogged in the slot 11 of metallic plate 10.
In addition, special instruction, after coil unit 20 is energized, the first metal plate area 101 of metallic plate 10 and the second metal plate area 102 respond to induced current L2 and L3 of generation, can be identical with the sense of current L1 of coil unit 20, such as, be as being all in figure counterclockwise.
Only the foregoing is only preferred embodiment of the present invention, be not intended to limit to scope of patent protection of the present invention, therefore the equivalence change of such as using specification of the present invention and graphic content to do, be all in like manner all contained in the scope of the present invention, close and give Chen Ming.
Claims (10)
1. an antenna structure, is characterized in that, described antenna structure comprises:
One metallic plate, it comprises a slot, and this slot penetrates this metallic plate, this metallic plate to be divided into one first metal plate area and one second metal plate area; And
One coil unit, wherein pericardium is containing a coil aperture, and this coil unit is arranged at the side of this metallic plate, and this coil aperture of corresponding this coil unit exposed of this slot of this metallic plate at least partially.
2. antenna structure according to claim 1, is characterized in that, this slot is provided with an insulant, to connect this first metal plate area and this second metal plate area.
3. antenna structure according to claim 1, is characterized in that, this metallic plate is arranged at the side of this coil unit, and this coil aperture of this slot exposed 1/3 of this metallic plate.
4. antenna structure according to claim 1, is characterized in that, this slot comprises at least two slot portions, and respectively this slot portion is interconnected.
5. antenna structure according to claim 1, it is characterized in that, this slot comprises one first slot portion and one second slot portion, this the first slot portion and this second slot portion are interconnected, when this metallic plate is arranged at the side of this coil unit, this coil aperture of this first slot portion or this second slot portion this coil unit exposed.
6. antenna structure according to claim 1, it is characterized in that, this slot comprises one first slot portion, one second slot portion and a treble-slot portion, this the second slot portion is interconnected with this first slot portion and this treble-slot portion respectively, when this metallic plate is arranged at the side of this coil unit, this coil aperture of this first slot portion, this second slot portion or this treble-slot portion this coil unit exposed.
7. antenna structure according to claim 1, is characterized in that, the both ends open of this slot is arranged at the different dual-side of this metallic plate or identical side respectively.
8. antenna structure according to claim 1, is characterized in that, this coil unit is arranged on a substrate, and this metallic plate is covered on this substrate, and this coil aperture of corresponding this coil unit exposed of this slot of this metallic plate at least partially.
9. antenna structure according to claim 8, is characterized in that, this substrate also comprises a feeding portion, and this feeding portion comprises two load points, and the two ends of this coil unit are connected to respectively this load point respectively.
10. antenna structure according to claim 1, is characterized in that, the sense of current of this coil unit is identical with the inductive current direction of this first metal plate area of this metallic plate and this second metal plate area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638651.9A CN104682005A (en) | 2013-11-29 | 2013-11-29 | Antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310638651.9A CN104682005A (en) | 2013-11-29 | 2013-11-29 | Antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104682005A true CN104682005A (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310638651.9A Pending CN104682005A (en) | 2013-11-29 | 2013-11-29 | Antenna structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104682005A (en) |
Cited By (9)
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| CN104821438A (en) * | 2014-01-31 | 2015-08-05 | Tdk株式会社 | Antenna device and portable electronic device using the same |
| CN105141344A (en) * | 2015-08-17 | 2015-12-09 | 联想(北京)有限公司 | Near field communication (NFC) sensor and electronic device |
| CN106299677A (en) * | 2015-06-29 | 2017-01-04 | 三星电子株式会社 | Near-field communication aerial and the near field communication means with this near-field communication aerial |
| CN106532227A (en) * | 2015-09-13 | 2017-03-22 | 株式会社Imtech | Portable terminal |
| CN107437650A (en) * | 2016-05-25 | 2017-12-05 | 三星电子株式会社 | Electronic equipment including NFC antenna |
| CN107453022A (en) * | 2016-05-23 | 2017-12-08 | Tdk株式会社 | Antenna assembly and the portable radio machine for possessing it |
| CN108346853A (en) * | 2016-09-14 | 2018-07-31 | 株式会社村田制作所 | Antenna assembly |
| CN108666735A (en) * | 2017-03-29 | 2018-10-16 | 佳邦科技股份有限公司 | Portable electronic devices and its back-cover component |
| US11354558B2 (en) | 2013-01-18 | 2022-06-07 | Amatech Group Limited | Contactless smartcards with coupling frames |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11354558B2 (en) | 2013-01-18 | 2022-06-07 | Amatech Group Limited | Contactless smartcards with coupling frames |
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| CN108666735B (en) * | 2017-03-29 | 2020-04-03 | 佳邦科技股份有限公司 | Portable electronic device and back cover assembly thereof |
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