CN102298720A - Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae - Google Patents
Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae Download PDFInfo
- Publication number
- CN102298720A CN102298720A CN2010102128425A CN201010212842A CN102298720A CN 102298720 A CN102298720 A CN 102298720A CN 2010102128425 A CN2010102128425 A CN 2010102128425A CN 201010212842 A CN201010212842 A CN 201010212842A CN 102298720 A CN102298720 A CN 102298720A
- Authority
- CN
- China
- Prior art keywords
- antenna
- emission
- metal
- auxiliary
- electronic tag
- 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
- Details Of Aerials (AREA)
Abstract
The invention discloses a metal-resistant ultrahigh frequency RFID (Radio Frequency Identification) tag composed of multiple layers of antennae, comprising a substrate, an antenna receiving/transmitting surface, a grounding surface, an ultrahigh frequency electronic chip arranged in the antenna receiving/transmitting surface, an auxiliary substrate and an auxiliary receiving/transmitting surface. The anode and the cathode of the ultrahigh frequency electronic chip are connected with the antenna receiving/transmitting surface through feeder lines; the receiving/transmitting surface is connected with a grounding part, isolated by the substrate, through one or a row of feed holes; and the auxiliary receiving/transmitting surface is isolated through the auxiliary substrate. In use, the antenna grounding surface is directly connected with a metal surface, then, the metal surface becomes the antenna grounding surface in practical use, so that the aim of metal resistance is realized; and the auxiliary receiving/transmitting surface plays a role in increasing surface area of the antennae, thereby enhancing the effects of receiving/transmitting electromagnetic wave energy. The three-dimensional design can reduce volume of the antennae while increasing the area of the antennae.
Description
Technical field
The present invention relates to a kind of ultrahigh frequency electronic tag, specifically relate to a kind of ultrahigh frequency electronic tag of forming by stacked antenna that can directly be used in the metal surface
Background technology
RFID is English (the Radio Frequency Identification of REID, RFID) abbreviation, claim electronic tag again, REID is a kind of automatic identification technology that begins to rise the nineties in 20th century, and REID is one and utilizes radiofrequency signal to realize that by space coupling (alternating magnetic field or electromagnetic field) contactless information transmission and the information of passing through to be transmitted reach the technology of identifying purpose.
Radio RF recognition technology (RFID) has become the topic of an awfully hot door.Prediction according to the insiders, the business opportunity of 30 to 10,000,000,000 U.S. dollars will be brought in the RFID technical market in new product and service in the coming five years, the thing followed also has server, data storage system, data bank program, business management software, consulting services, and the huge demand of other computer basics construction.Perhaps these predictions are too optimistic, and there is no question about but RFID will become following great market.The software and hardware of RFID special use is being stepped up to develop in many high-tech companies, these companies comprise Intel, Microsoft, the inscriptions on bones or tortoise shells, SAP and SUN, and the maximum retailer Wal-Mart in the whole world just used this technology on the single-piece commodity as far back as 2006, therefore we can say that radio RF recognition technology (RFID) is becoming global popular new science and technology.
RFID also obtains practical application in a lot of fields of China, comprises logistics, tobacco, medicine, I.D., Olympic Games admission ticket, Expo admission ticket, pet management or the like, but with regard to our daily life impression, still far as RFID from us.Except China second-generation identity card, we also are difficult to often experience the existence of RFID in our life.Is what reason this on earth? reason is very simple in fact, although RFID obtains practical application in every field just fast, but economic scale with respect to our country, its range of application also reaches degree widely far away, even if use many traffic material flow industries at RFID, yet be in the state of a distribution, and the state of the face that reaches of failing.Leader enterprise in the industry attempts adopting this new technology for keeping its competitive position to take the lead in often, and more enterprise also has the attitude of looking around and hesitating in arms.Still be example with the material flow industry, applying RFID technology can significantly improve the logistics operational paradigm, goes out entry time as the quickening goods, reduces the site operation personnel, realizes fast and accurate stock-taking that the realization goods is accurately located tracking etc.Premier Wen Jiabao has clearly proposed in the government work report of 11 big State Council will be the Internet of Things industry as following new growth engines, and the core technology background of Internet of Things is the RFID technology
Although the RFID technology has obtained significant progress in China at present, metal pair high-frequency electromagnetic wave reflection and shielding cause the application of ultrahigh frequency in the particular surroundings of metal is arranged to be subjected to a lot of restrictions, and frequency is high more, and the influence that is subjected to is obvious more.In order to overcome the electromagnetic influence of metal pair, the most common way is to put isolated material between metal and label in the industry, and its shielding and reflections affect are reduced.But because the diversity of applied environment, under the various rugged environments, this The Application of Technology has been subjected to restriction, and RFID has been subjected to new challenge in the development and the popularization of this industry.The summary of the invention of this project makes this technical bottleneck that new developing direction arranged.
Summary of the invention
Content of the present invention in order to solve the metal interference problem in the top technical barrier, provides a kind of small-sized passive ultrahigh frequency electronic tag economical and practical simple in structure of high reliability exactly for the application of metal environment.
The present invention in order to achieve the above object, the technical scheme that is adopted provides a kind of passive ultrahigh frequency electronic tag of being made up of stacked antenna that is used for metal material surface, comprising:
Comprise main base material 8, the antenna reception/surface of emission 4, ground plane 9 places the UHF electronic chip 5 of the antenna reception/surface of emission, auxiliary base material 3, auxiliary reception/surface of emission 2.UHF electronic chip both positive and negative polarity is connected with the antenna reception/surface of emission 4 by feeder line 6; Reception/the surface of emission 4 is arranged power feed hole 7 by one or one and is connected with the grounded part 9 of being isolated by base material; The auxiliary reception surface of emission 2 is isolated by auxiliary base material 3.The antenna ground face in use directly links to each other with the metal surface, and the metal surface has promptly become the antenna ground face in the actual use, reaches the purpose of anti-metal; The effect of auxiliary reception/surface of emission 2 is in order to increase the antenna surface area, to strengthen the effect of electromagnetic wave energy reception/emission.Three-dimensional design like this under the situation that increases antenna area, can be dwindled antenna volume.
It is remarkable that electronic tag of the present invention is used for the metal material surface effect.
RFID label of the present invention such as above-mentioned structure according to the principle of work of microstrip antenna, because the back side of label itself is exactly ground plane, contact with the metal surface, have just increased contact area, and can not influence the effect of microstrip antenna and the performance of electronic tag.Because the area of whole microstrip antenna has been dwindled in the design of the application of power feed hole and auxiliary reception/surface of emission greatly, and the size of RFID label is reduced.For example: compare with RFID label not with auxiliary antenna for the RFID label that has auxiliary antenna that plays same purpose, according to determining of the frequency of operation 915MHz of electronic tag, the length of the reception surface of emission of microstrip antenna is limited by its wavelength, and the area that the antenna of so last design receives the surface of emission is 130mm * 22mm.And after increasing auxiliary antenna, the area that antenna receives the surface of emission is reduced into 40mm * 12mm, thereby the size of electronic tag is also just dwindled greatly.From the structure of the RFID label of the invention described above as can be seen, it is simple in structure, and production technology is basic similar with ripe at present multilayer board (PCB) manufacture craft, and this has brought facility for follow-up production in enormous quantities.
Description of drawings
Fig. 1 is the electronic tag auxiliary reception surface of emission of electronic tag one embodiment of the present invention and the structural representation of auxiliary base material;
Fig. 2 receives the structural representation of the surface of emission and main base material for the electronic tag master of electronic tag one embodiment of the present invention;
Fig. 3 is the structural representation of the electronic tag ground plane of electronic tag one embodiment of the present invention.
Fig. 4 is the electronic tag general structure synoptic diagram of electronic tag one embodiment of the present invention
Concrete enforcement
Illustrate further the architectural feature of RFID label of the present invention below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, shown in Figure 3, RFID label of the present invention comprises: base material 8, place the electronic label chip 5 on the base material, be connected the feeder line 6 on the chip 5, antenna receives the surface of emission 4, antenna ground face 9, power feed hole 7, the auxiliary base material 3 and the auxiliary reception surface of emission 2 constitute.Antenna receives the surface of emission 4 and is seated on the base material 8, and chip 5 places antenna to receive on the surface of emission 4 by feeder line 6; Antenna ground face 9 is placed in the another side of base material 8, and this substrate surface is the bottom surface of electronic tag, receives the surface of emission 4 by power feed hole 7 and antenna and links to each other; The auxiliary reception surface of emission 2 of antenna places on the auxiliary base material 3, and this auxiliary substrate surface is the end face of electronic tag.The antenna ground face directly contacts the surface of using this electronic tag material.
In the present embodiment, the reception surface of emission 4 of microstrip antenna, antenna ground face 9, auxiliary antenna receive the surface of emission 2 and feeder line 6 constitutes by Copper Foil, is conductor sheet.It between conductor sheet and conductive earthing face, encourage radio frequency electromagnetic field by the feeder line feed, and by the main antenna reception surface of emission, the auxiliary antenna reception surface of emission all around with the outside radiated electromagnetic wave in slit of conductive earthing face, antenna ground face.
This stacked antenna among the present invention (as Fig. 1,2,3) finds that according to experimental result the thickness of main base material 8 is greater than 1mm at least, and the thickness of auxiliary base material 3 is less than the thickness of main base material, could reduce the loss of antenna energy so as much as possible.Copper is covered on two sides at main base material 8 simultaneously, and one side receives 4 figure of the surface of emission for the main antenna of the microstrip antenna that designs; Another side is with whole the ground plane as microstrip antenna.Simultaneously cover copper in the one side of auxiliary base material 3, the figure that copper is covered in institute is that the microstrip antenna that designs receives the surface of emission 2 as auxiliary antenna, then chip 5 is seated in above the main base material 8 of the main antenna reception surface of emission by the circular port 1 in the middle of the auxiliary base material.Again the auxiliary reception surface of emission 2, auxiliary base material 3 is pressed into one with the main surface of emission 4 that receives, and forms final antenna (as Fig. 4) at last.
In the present embodiment, power feed hole 7 is an exhausting hole, the position of through hole, and size depends on that main antenna receives the surface of emission 4 and auxiliary antenna receives the graph position and the size of the surface of emission 2, and has direct related with the input impedance of chip 5.When the radio frequency signal frequency on the feeder line changes, the resistance value of entire antenna also changes thereupon, therefore, the consideration of appropriate signals feed-in mode and impedance matching can make entire antenna when resonant frequency, all as much as possible radiateing of projectile energy meeting, the entire antenna design is carried out simulation calculation and simplation verification by Ansoft HFSS simulation software.
In the present embodiment; cover insulating paint on the surface of RFID label and receive the surface of emission with the master who prevents the UHF electronic tag as diaphragm; the auxiliary reception surface of emission contacts with external environment and oxidation takes place; phenomenons such as corrosion are to guarantee the use of the long-term stability of RFID electronic tag in applied environment.
In the present embodiment, the ultrahigh frequency electronic tag of being made up of stacked antenna will reach the best applications effect when being close to the metal surface, can pass through screw, rivet, and magnet or superpower performance adhesive attachment are in the metal surface.
Claims (6)
1. anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna is characterized in that comprising:
Form by the main antenna reception/surface of emission, antenna ground face, the auxiliary antenna surface of emission, chip and feeder line.The RFID chip is connected with the main antenna surface of emission, is seated in above the main base material, and auxiliary antenna receives the surface of emission and places on the main antenna surface of emission, and it is isolated to receive the surface of emission by auxiliary base material and main antenna.The antenna ground face is positioned at the another side of main base material, and as the back side of electronic tag, directly the surface of the metal material of electronic tag is used in contact.Power feed hole is arranged on the main base material, and main antenna receives the surface of emission and is connected with the antenna ground face by this power feed hole.
2. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1 is characterized in that auxiliary antenna receives the size of the surface of emission, receives the size of the surface of emission less than main antenna.
3. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1 is characterized in that main base material is made up of phenolics, glass fibre/epoxy resin, polypropylene, poly-cyanate ester resin etc., and its thickness is greater than one millimeter.
4. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1 is characterized in that the material of the main antenna reception surface of emission, the auxiliary antenna reception surface of emission is made up of metal materials such as gold, silver, copper, aluminium.
5. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1 is characterized in that power feed hole is one or several through hole, or directly is communicated with by metal tapes such as gold, silver, copper, aluminium.
6. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1 is characterized in that the auxiliary reception surface of emission leaves through hole, and chip is connected with the main surface of emission that receives by this through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102128425A CN102298720A (en) | 2010-06-28 | 2010-06-28 | Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102128425A CN102298720A (en) | 2010-06-28 | 2010-06-28 | Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102298720A true CN102298720A (en) | 2011-12-28 |
Family
ID=45359128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102128425A Pending CN102298720A (en) | 2010-06-28 | 2010-06-28 | Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102298720A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103473666A (en) * | 2013-09-18 | 2013-12-25 | 浙江中烟工业有限责任公司 | Goods allocation digitization warehouse management system and method used in storied storehouse |
| CN104160554A (en) * | 2012-03-30 | 2014-11-19 | 富士通株式会社 | Rfid tag |
| CN104718711A (en) * | 2012-06-28 | 2015-06-17 | 芬兰国家技术研究中心 | A near-field uhf identification system and a method for identifying an object or the kind of an object that is or contains electrically conductive material using near-field identification |
| CN106972235A (en) * | 2017-05-10 | 2017-07-21 | 江苏明联电子科技有限公司 | Anti-metal tag antenna |
| CN107181059A (en) * | 2017-06-09 | 2017-09-19 | 中山金利宝胶粘制品有限公司 | High frequency RFID antenna, preparation method and its RFID tag of application |
| CN107392295A (en) * | 2017-07-14 | 2017-11-24 | 国电南瑞科技股份有限公司 | A kind of far Distance RFID inspection label of hyperfrequency anti-metal |
| CN108110402A (en) * | 2016-11-25 | 2018-06-01 | 康菲德斯合股公司 | RFID transponders |
| CN108596317A (en) * | 2018-01-12 | 2018-09-28 | 江苏军物联网股份有限公司 | A kind of anti-detaching theft-proof RFID electronic label |
| CN110011028A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system, communicating terminal and base station |
| CN110717568A (en) * | 2018-07-12 | 2020-01-21 | 芯电智联(北京)科技有限公司 | Data acquisition method of anti-metal strong magnetic label in production process of prefabricated part |
| CN110717557A (en) * | 2018-07-12 | 2020-01-21 | 芯电智联(北京)科技有限公司 | Method for managing RFID electronic tag in life cycle of prefabricated part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637778A (en) * | 2003-12-25 | 2005-07-13 | 株式会社日立制作所 | Wireless IC tag, and method and apparatus for manufacturing the same |
| CN101122970A (en) * | 2006-08-08 | 2008-02-13 | 株式会社日立制作所 | Rfid and reading method for the same |
| CN101197007A (en) * | 2007-12-28 | 2008-06-11 | 上海复旦微电子股份有限公司 | Ultra-high frequency electronic label for metallic material surface |
| CN201845353U (en) * | 2010-06-28 | 2011-05-25 | 上海铁勋智能识别系统有限公司 | Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna |
-
2010
- 2010-06-28 CN CN2010102128425A patent/CN102298720A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1637778A (en) * | 2003-12-25 | 2005-07-13 | 株式会社日立制作所 | Wireless IC tag, and method and apparatus for manufacturing the same |
| CN101122970A (en) * | 2006-08-08 | 2008-02-13 | 株式会社日立制作所 | Rfid and reading method for the same |
| CN101197007A (en) * | 2007-12-28 | 2008-06-11 | 上海复旦微电子股份有限公司 | Ultra-high frequency electronic label for metallic material surface |
| CN201845353U (en) * | 2010-06-28 | 2011-05-25 | 上海铁勋智能识别系统有限公司 | Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104160554A (en) * | 2012-03-30 | 2014-11-19 | 富士通株式会社 | Rfid tag |
| CN104160554B (en) * | 2012-03-30 | 2016-08-24 | 富士通株式会社 | RFID label tag |
| CN104718711A (en) * | 2012-06-28 | 2015-06-17 | 芬兰国家技术研究中心 | A near-field uhf identification system and a method for identifying an object or the kind of an object that is or contains electrically conductive material using near-field identification |
| CN103473666B (en) * | 2013-09-18 | 2016-08-17 | 浙江中烟工业有限责任公司 | A kind of paper storaged building used as a sacrifice to the dead goods yard digitization warehouse management system |
| CN103473666A (en) * | 2013-09-18 | 2013-12-25 | 浙江中烟工业有限责任公司 | Goods allocation digitization warehouse management system and method used in storied storehouse |
| CN108110402A (en) * | 2016-11-25 | 2018-06-01 | 康菲德斯合股公司 | RFID transponders |
| CN106972235A (en) * | 2017-05-10 | 2017-07-21 | 江苏明联电子科技有限公司 | Anti-metal tag antenna |
| CN106972235B (en) * | 2017-05-10 | 2023-06-06 | 江苏明联电子科技有限公司 | Anti-metal tag antenna |
| CN107181059A (en) * | 2017-06-09 | 2017-09-19 | 中山金利宝胶粘制品有限公司 | High frequency RFID antenna, preparation method and its RFID tag of application |
| CN107392295A (en) * | 2017-07-14 | 2017-11-24 | 国电南瑞科技股份有限公司 | A kind of far Distance RFID inspection label of hyperfrequency anti-metal |
| CN108596317A (en) * | 2018-01-12 | 2018-09-28 | 江苏军物联网股份有限公司 | A kind of anti-detaching theft-proof RFID electronic label |
| CN110717568A (en) * | 2018-07-12 | 2020-01-21 | 芯电智联(北京)科技有限公司 | Data acquisition method of anti-metal strong magnetic label in production process of prefabricated part |
| CN110717557A (en) * | 2018-07-12 | 2020-01-21 | 芯电智联(北京)科技有限公司 | Method for managing RFID electronic tag in life cycle of prefabricated part |
| CN110011028A (en) * | 2018-12-29 | 2019-07-12 | 瑞声科技(新加坡)有限公司 | A kind of antenna system, communicating terminal and base station |
| CN110011028B (en) * | 2018-12-29 | 2020-09-18 | 瑞声科技(新加坡)有限公司 | Antenna system, communication terminal and base station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102298720A (en) | Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae | |
| CN201845353U (en) | Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna | |
| CN107808186A (en) | Long-distance wireless radio frequency anti-metal identification label | |
| CN206349489U (en) | A kind of double-decker broadband UHF RFID anti-metal tag antennas | |
| Irfan et al. | Design of a microstrip-line-fed inset patch antenna for RFID Applications | |
| CN103903048A (en) | Folding Peano fractal anti-metallic ultrahigh frequency RFID electronic tag | |
| CN101197007A (en) | Ultra-high frequency electronic label for metallic material surface | |
| CN102880898A (en) | Ultrahigh frequency (UHF) electronic tag capable of covering UHF full frequency range and sharing with free space and metal surface | |
| CN202042595U (en) | Ultrahigh-frequency radio frequency identification electronic tag antenna capable of working on metal surface | |
| CN105322289A (en) | Novel RFID circularly polarized antenna | |
| Casula et al. | A narrowband chipless multiresonator tag for UHF RFID | |
| Hasan et al. | Design and simulation of UHF RFID tag antennas and performance evaluation in presence of a metallic surface | |
| CN103700931A (en) | Small-size fractal-fork anti-metallic tag antenna loaded with split-ring resonators | |
| CN102955969A (en) | Ultrathin, flexible and anti-metallic ultrahigh-frequency electronic tag | |
| CN101807739A (en) | Miniaturized and circularly polarized antenna for RFID (Radio Frequency Identification) management field | |
| Habib et al. | Data dense chipless RFID tag with efficient band utilization | |
| CN102411722A (en) | High temperature-resistant ultrahigh frequency laundry tag capable of repeatedly washing | |
| CN203773574U (en) | Miniature metal-resistant electronic tag | |
| CN202042596U (en) | Microstrip patch antenna applied in ultrahigh frequency radio frequency identification (UHF RFID) | |
| Gonçalves et al. | RFID tags on paper substrate for bottle labelling | |
| Park et al. | Design of UHF radio frequency identification metal tag antenna using T‐shaped slot | |
| B. Abdallah et al. | Analysis, design, and measurements of an ultrasmall on‐metal UHF RFID tag antenna | |
| EP2867996B1 (en) | A near-field uhf identification system and a method for identifying an object or the kind of an object that is or contains electrically conductive material using near-field identification | |
| CN209231970U (en) | Hyperfrequency anti-metal electronic tag | |
| CN203623562U (en) | Electric vehicle license plate based on ultrahigh frequency RFID remote reading |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111228 |