CN102880899A - Electronic tag - Google Patents
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- CN102880899A CN102880899A CN2011101968800A CN201110196880A CN102880899A CN 102880899 A CN102880899 A CN 102880899A CN 2011101968800 A CN2011101968800 A CN 2011101968800A CN 201110196880 A CN201110196880 A CN 201110196880A CN 102880899 A CN102880899 A CN 102880899A
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Abstract
The invention discloses an electronic tag comprising an electromagnetic composite material antenna. The electromagnetic composite material antenna comprises an electromagnetic response unit, a metal opening ring and a feed point, wherein the metal opening ring is used for encircling the electromagnetic response unit, and the feed point is connected with one end of the metal opening ring; the electromagnetic response unit comprises an electric field coupling structure, a radio frequency identification device (RFID) module, and an integrated circuit (IC) card module, wherein the RFID module performs an electromagnetic wave communication in a first frequency range on the basis of the electromagnetic composite material antenna, and the IC card module performs the electromagnetic wave communication in a second range on the basis of the electromagnetic composite material antenna. The design of the electromagnetic composite material antenna is equivalent to the increase of the physical length of the antenna (the actual length is not increased); furthermore, by adopting the design, the frequency range width and the number of the resonance frequency points covered by the antenna are added; therefore, a plurality of antennas can be replaced by designing one electromagnetic composite material antenna; the electronic tag can perform the communication in a plurality of frequency ranges by using one antenna; so that the size of the existing dual-radio electronic tag is minimized and the design cost is reduced.
Description
Technical field
The present invention relates to the REID field, relate in particular to a kind of multi-frequency band radio-frequency read-write electronic tag based on radio-frequency (RF) identification (Radio Frequency Identification) technology.
Background technology
Radio-frequency (RF) identification (Radio Frequency Identification, i.e. RFID) technology claims again electronic tag, radio frequency identification wireless communication technology, can identify specific objective and read and write related data by radio signals.Along with the demand in the development of electronic radio-frequency circuit integration and respective application market, the electronic tag on the existing market has been integrated the function of IC-card, thereby realizes the electronic tag multi-frequency range multifunctional.Because the communication frequency band of REID is for adopting 433MHZ or 900MHZ (optional), this frequency range is common frequency band, need not application and charge, the convenient application; Be 13.56MHZ and IC-card gets working frequency range.Realize the requirement of above-mentioned two-band communication in order to satisfy electronic tag, cause electronic tag that two radio-frequency antenna unit are set, thereby increased volume and the design difficulty of electronic tag, can not satisfy electronic tag miniaturization and cheaply requirement.
Summary of the invention
Based on this, the invention provides the multi-frequency band radio-frequency read-write electronic tag of a kind of low cost and miniaturization.
A kind of electronic tag comprises: a magnetoelectric composites antenna, described magnetoelectric composites antenna comprises an electromagnetic response unit, is used for a metal openings ring that arranges around described electromagnetic response unit and the feedback point that links to each other with an end of metal openings ring, and described electromagnetic response unit comprises a field coupled structure; One RFID module is carried out electromagnetic communication based on described magnetoelectric composites antenna in the first frequency range; And an IC-card module, carry out electromagnetic communication based on described magnetoelectric composites antenna in the second frequency range.
Further, described the first frequency range is 900MHZ or 433MHZ; The second frequency range is 13.56MH.
Further, described electromagnetic response unit also comprises four metal constructions, and described four metal constructions are arranged at respectively in the described field coupled structure and with the field coupled structure and are connected as a body.
Further, described electromagnetic response unit also comprises four metal constructions, described four metal constructions be arranged at respectively in the described field coupled structure and with the field coupled structure Coupling.
Further, described metal construction is any one in a pair of complementary split ring resonator metal construction.
Further, described metal construction is any one in a pair of complementary complementary helix metal construction.
Further, described metal construction is any one in a pair of complementary folding line metal construction.
Further, described metal construction is any one in a pair of complementary opening helical ring metal construction.
Further, described split ring resonator metal construction is passed through any one in geometric configuration deriving mode generation open curve metal construction, open-delta metal construction and the opening polygon metal construction.
Further, the complementary derived structure that forms based on described split ring resonator metal construction.
With respect to prior art, adopt the magnetoelectric composites mode to design to be equivalent to and increased antenna physical length (the physical length size does not increase), and this kind design all increases the bin width of antenna cover and resonance frequency points, therefore can replace a plurality of antennas by designing a magnetoelectric composites antenna, electronic tag can use an antenna just can realize a plurality of frequency range communications, makes the volume miniaturization of existing Double RF electronic tag and reduces the cost that designs.
Description of drawings
Fig. 1 is the module map of electronic tag of the present invention;
Fig. 2 is the structural drawing of Fig. 1 magnetoelectric composites antenna;
Fig. 3 is the structural drawing of another embodiment of magnetoelectric composites antenna of the present invention;
Fig. 4 a is the planimetric map of a kind of split ring resonator metal construction in the metal construction shown in Figure 2;
Fig. 4 b is the planimetric map of a kind of complementary metal structure of split ring resonator metal construction shown in Fig. 4 a;
Fig. 5 a is the planimetric map of a kind of helix metal construction in the metal construction shown in Figure 2;
Fig. 5 b is the planimetric map of a kind of complementary metal structure of helix metal construction shown in Fig. 5 a;
Fig. 6 a is the planimetric map of a kind of folding line metal construction of metal construction shown in Figure 2;
Fig. 6 b is the planimetric map of a kind of complementary metal structure of folding line metal construction shown in Fig. 6 a;
Fig. 7 a is the planimetric map of a kind of opening helical ring metal construction in the metal construction shown in Figure 2;
Fig. 7 b is the planimetric map of a kind of complementary metal structure of the metal construction of opening helical ring shown in Fig. 7 a;
Fig. 8 a is the planimetric map of a kind of pair of opening helical ring metal construction in the metal construction shown in Figure 2;
Fig. 8 b is the planimetric map of a kind of complementary metal structure of two opening helical ring metal constructions shown in Fig. 8 a;
Fig. 9 is the structural drawing of magnetoelectric composites antenna the 3rd embodiment of the present invention;
Figure 10 is the structural drawing of magnetoelectric composites antenna the 4th embodiment of the present invention.
Embodiment
Please refer to Fig. 1, be the module map of electronic tag of the present invention, described electronic tag 5 comprises a magnetoelectric composites antenna 51, RFID module 52 and IC-card module 53.Described RFID module 52 is carried out electromagnetic communication based on magnetoelectric composites antenna 51 in the first frequency range; IC-card module 53 is carried out electromagnetic communication based on magnetoelectric composites antenna 51 in the second frequency range.
Described magnetoelectric composites antenna 51 is to be engraved by the artificial metal's conducting strip with certain pattern form to form.Thereby artificial metal's conducting strip of different pattern shape makes it have different specific inductive capacity has different electromagnetic responses with different magnetic permeabilities.Wherein, when this artificial metal's conducting strip is in resonance band, this artificial metal's conducting strip will show the dispersion characteristics of height, and the dispersion characteristics of so-called height refer to the impedance of this artificial metal's conducting strip, hold perception, equivalent specific inductive capacity and magnetic permeability be along with violent variation can occur frequency.Thereby can design a magnetoelectric composites antenna by above-mentioned principle and have simultaneously 433MHZ and two frequency band resonance frequencies of 13.56MH, perhaps the double-frequency resonance antenna of 900MHZ and two frequency band resonance frequencies of 13.56MH.
In the present embodiment, described the first frequency range is 900MHZ or 433MHZ; Described the second frequency range is 13.56MH.The working frequency range of described magnetoelectric composites antenna perhaps is two frequency ranges of 900MHZ and 13.56MH for 433MHZ and two frequency ranges of 13.56MH.Thereby respond simultaneously 433MHZ and 13.56MH by described magnetoelectric composites antenna 51, perhaps the electromagnetic signal of 900MHZ and 13.56MH frequency range is to carry out data communication with card reader.RFID module 52 is based on magnetoelectric composites antenna 51 these 900MHZ of response or the 433MHZ electromagnetic signal is modulated data message and pass through magnetoelectric composites antenna 51 with 900MHZ or the outside electromagnetic signals of 433MHZ electromagnetic signal.IC-card module 53 is modulated data message based on magnetoelectric composites antenna 51 these 13.56MH electromagnetic signals of response and is passed through magnetoelectric composites antenna 51 with the outside electromagnetic signals of 13.56MH electromagnetic signal.
Please refer to Fig. 2, magnetoelectric composites antenna 51 comprises an electromagnetic response unit 120, is used for wrapping up a metal openings ring 121 of described electromagnetic response unit 120 and prolongs the terminal feedback point 123 that links to each other with an end of metal openings ring 121.Described feedback point 123 is used for the electric signal of the transmission of reception RFID module 52 and IC-card module 53.Described electromagnetic response unit 120 comprises a field coupled structure (electric-field-coupled, abbreviation ELC).This kind design is equivalent to has increased antenna physical length (the physical length size does not increase), so just can design the radio-frequency antenna that is operated under the very low operation frequency in minimum space.Solve the physics limitation of traditional antenna antenna controlled space area when low frequency operation.
See also Fig. 2 and Fig. 3, the structural drawing of the structural drawing of magnetoelectric composites antenna and antenna of the present invention the second embodiment.In order to realize impedance matching and the better performance that improves magnetoelectric composites antenna 51, can also be with its further design, be that described magnetoelectric composites antenna 51 also comprises at least one metal construction 122, i.e. nested at least one metal construction 122 in the field coupled structure of described electromagnetic response unit 123 (electric-field-coupled, abbreviation ELC).In the present embodiment, nested respectively four identical metal constructions 122 and be connected as a body (as shown in Figure 3) with the field coupled structure in field coupled structure (ELC).In these other modes, described four identical metal constructions 122 can directly adopt field coupled or inductive coupling mode to be connected with the field coupled structure.
The shape of at least two metal constructions in above-mentioned four metal constructions 122 is not identical, and namely described four metal constructions 122 can be fully not identical or not with part.
Various wireless communication apparatus can adopt the magnetoelectric composites antenna 51 among the present invention, but for the impedance matching between magnetoelectric composites antenna 51 and the various wireless communication apparatus or realization multimode operation pattern, described metal construction 122 can adopt various metal constructions to electromagnetic response and derived structure thereof.Metal construction 122 can be selected complementary split ring resonator metal construction (shown in Fig. 4 a, 4b) as described, and namely the shape of two kinds of metal constructions forms complementation shown in Fig. 4 a, 4b.
Metal construction shown in described Fig. 4 a and the 4b 122 forms a pair of complementary split ring resonator metal construction mutually.Because metal construction 122 shown in Fig. 4 a is provided with and connects terminally, so the metal construction shown in Fig. 4 a 122 can adopt coupling scheme to be arranged in the magnetoelectric composites antenna 51, thereby forms described antenna 10 of the present invention (as shown in Figure 9).In like manner, do not arrange shown in Fig. 4 b by connecting end yet, can adopt coupling scheme to be arranged in the magnetoelectric composites antenna 51 yet.
Described metal construction 122 also can be selected a pair of complementary helix metal construction, a pair of complementary folding line metal construction shown in Fig. 6 a and 6b, a pair of complementary opening helical ring metal construction shown in Fig. 7 a and 7b and a pair of complementary two opening helical ring metal constructions shown in Fig. 8 a and 8b shown in Fig. 5 a and 5b.Connect end if described metal construction 122 is provided with, then described metal construction 122 can directly link to each other with magnetoelectric composites antenna 51, such as Fig. 6 b metal construction 122.See also Figure 10, will be electrically connected on the field coupled structure of magnetoelectric composites antenna 51 such as Fig. 6 b metal construction 122, thereby obtain the antenna 10 that the present invention derives.Forming various bending places in above-mentioned various metal constructions 122 all is rectangular shape.In other embodiments, it is fillet that metal construction 122 forms various bending places, such as the rounded shapes of the bending place of electromagnetic response unit 120.
Described metal construction 122 can by a kind of or by several structures in front derive, compound or a metal construction that group battle array obtains.Deriving is divided into two kinds, and a kind of is that geometric configuration is derived, and another kind is that expansion is derived.Geometric configuration is herein derived and is referred to that function class derives like, variform structure, for example by square frame class formation derive open curve metal construction, open-delta metal construction, opening polygon metal construction and other different polygon class formation, take the opening resonance metal sublayer ring structure shown in Fig. 4 a as example, thereby draw corresponding complementary derived structure by above-mentioned geometric configuration deriving mode, as based on as described in the complementary derived structure that forms of split ring resonator metal construction.
The complex superposition of deriving namely on the basis of the metal construction of Fig. 4 to Fig. 8 mutually of expansion herein forms and meets metal construction; Compound referring to herein, at least two the metal construction complex superposition extremely shown in Figure 8 such as Fig. 4 form a composite metal structures 122.
In the present invention, magnetoelectric composites antenna 51 directly is embedded in the electronic tag substrate and makes for copper or ag material.Be preferably copper, cheap, conduct electricity very well.In order to realize better impedance matching, magnetoelectric composites antenna 51 also is copper and silver combination, for example, electromagnetic response unit 120 and metal construction 122 adopt ag material to make, and metal openings ring 121 adopts copper product to make with feedback point 123, so can draw the magnetoelectric composites antenna 51 that multiple copper and silver combination are made.
Among the present invention, about the processing and manufacturing of above-mentioned magnetoelectric composites antenna 51, as long as satisfy design concept of the present invention, can adopt various manufactures.Prevailing method is to use the manufacture method of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes also can satisfy processing request of the present invention.Except this processing mode, can also introduce according to the actual needs other manufacturing process, but such as the flexible PCB processing of employed conductive silver paste printing ink processing mode, all kinds of deformation devices in the electronic tag 5 among the present invention, the processing mode of iron plate antenna and the processing mode of iron plate and PCB combination.Wherein, iron plate and PCB combination processing mode refers to utilize the accurate processing of PCB to finish the processing of antenna micro groove structure, finishes other slave part with iron plate.In addition, can also process by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (10)
1. an electronic tag is characterized in that, described electronic tag comprises:
One magnetoelectric composites antenna, described magnetoelectric composites antenna comprises an electromagnetic response unit, is used for a metal openings ring that arranges around described electromagnetic response unit and the feedback point that links to each other with an end of metal openings ring, and described electromagnetic response unit comprises a field coupled structure;
One RFID module is carried out electromagnetic communication based on described magnetoelectric composites antenna in the first frequency range; And
One IC-card module is carried out electromagnetic communication based on described magnetoelectric composites antenna in the second frequency range.
2. electronic tag according to claim 1 is characterized in that, described the first frequency range is 900MHZ or 433MHZ; The second frequency range is 13.56MH.
3. electronic tag according to claim 2 is characterized in that, described electromagnetic response unit also comprises four metal constructions, and described four metal constructions are arranged at respectively in the described field coupled structure and with the field coupled structure and are connected as a body.
4. electronic tag according to claim 2 is characterized in that, described electromagnetic response unit also comprises four metal constructions, described four metal constructions be arranged at respectively in the described field coupled structure and with the field coupled structure Coupling.
5. according to claim 3 or 4 described electronic tags, it is characterized in that described metal construction is any one in a pair of complementary split ring resonator metal construction.
6. according to claim 3 or 4 described electronic tags, it is characterized in that described metal construction is any one in a pair of complementary complementary helix metal construction.
7. according to claim 3 or 4 described electronic tags, it is characterized in that described metal construction is any one in a pair of complementary folding line metal construction.
8. according to claim 3 or 4 described electronic tags, it is characterized in that described metal construction is any one in a pair of complementary opening helical ring metal construction.
9. electronic tag according to claim 5 is characterized in that, described split ring resonator metal construction is passed through any one in geometric configuration deriving mode generation open curve metal construction, open-delta metal construction and the opening polygon metal construction.
10. electronic tag according to claim 9 is characterized in that, based on the complementary derived structure of described split ring resonator metal construction formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101968800A CN102880899A (en) | 2011-07-14 | 2011-07-14 | Electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101968800A CN102880899A (en) | 2011-07-14 | 2011-07-14 | Electronic tag |
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| CN102880899A true CN102880899A (en) | 2013-01-16 |
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| CN2011101968800A Pending CN102880899A (en) | 2011-07-14 | 2011-07-14 | Electronic tag |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646272A (en) * | 2013-12-03 | 2014-03-19 | 北京中电华大电子设计有限责任公司 | Miniature electronic tag |
| WO2017181340A1 (en) * | 2016-04-19 | 2017-10-26 | 九齐科技股份有限公司 | Radio frequency device, and radio frequency tag detection method for same |
| WO2021078147A1 (en) * | 2019-10-22 | 2021-04-29 | Oppo广东移动通信有限公司 | Antenna apparatus and electronic device |
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| CN101568933A (en) * | 2007-04-06 | 2009-10-28 | 株式会社村田制作所 | Wireless IC device |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
| CN102084544A (en) * | 2008-07-02 | 2011-06-01 | 三菱电机株式会社 | Radio communication device |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101568933A (en) * | 2007-04-06 | 2009-10-28 | 株式会社村田制作所 | Wireless IC device |
| CN102084544A (en) * | 2008-07-02 | 2011-06-01 | 三菱电机株式会社 | Radio communication device |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
| CN101667680A (en) * | 2009-08-31 | 2010-03-10 | 深圳市启汉科技有限公司 | Monopole radio frequency antenna |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646272A (en) * | 2013-12-03 | 2014-03-19 | 北京中电华大电子设计有限责任公司 | Miniature electronic tag |
| WO2017181340A1 (en) * | 2016-04-19 | 2017-10-26 | 九齐科技股份有限公司 | Radio frequency device, and radio frequency tag detection method for same |
| CN109478245A (en) * | 2016-04-19 | 2019-03-15 | 九齐科技股份有限公司 | Radio-frequency device and its method for detecting RF tag |
| WO2021078147A1 (en) * | 2019-10-22 | 2021-04-29 | Oppo广东移动通信有限公司 | Antenna apparatus and electronic device |
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Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INNOVATION TECHNOLOGY CO., LTD. Effective date: 20150708 Owner name: SHENZHEN GUANGQI INTELLIGENT PHOTONICS TECHNOLOGY Free format text: FORMER OWNER: SHENZHEN KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Effective date: 20150708 |
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Effective date of registration: 20150708 Address after: 518000 Guangdong city of Shenzhen province Futian District Shennan Road and CaiTian Road intersection East Xintiandi Plaza C block 2007-27 Applicant after: Shenzhen Guang Qi intelligent photonic Technology Co., Ltd. Address before: 518000 Nanshan District City, Guangdong province high tech Zone in the middle of a high tech building, No. 9 software building Applicant before: Shenzhen Kuang-Chi Institute of Advanced Technology Applicant before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. |
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Application publication date: 20130116 |
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