CN201845353U - Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna - Google Patents
Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna Download PDFInfo
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- CN201845353U CN201845353U CN2010202414776U CN201020241477U CN201845353U CN 201845353 U CN201845353 U CN 201845353U CN 2010202414776 U CN2010202414776 U CN 2010202414776U CN 201020241477 U CN201020241477 U CN 201020241477U CN 201845353 U CN201845353 U CN 201845353U
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Abstract
The utility model relates to a metal-resistant ultrahigh-frequency electronic tag consisting of a stacked antenna. The electronic tag comprises base material, a main antenna receiving/emitting surface, a ground surface, an ultrahigh-frequency RFID (radio frequency identification devices) chip, auxiliary base material and an auxiliary antenna receiving/emitting surface, wherein the ultrahigh-frequency RFID chip is arranged on the main antenna receiving/emitting surface. A positive pole and a negative pole of the ultrahigh-frequency RFID chip are connected with the main antenna receiving/emitting surface through feeder lines; the receiving/emitting surface is connected with a grounded part isolated by the base material through a feeder hole or a row of feeder holes; and the auxiliary antenna receiving/emitting surface is isolated by the auxiliary base material. When the ground surface of the antenna is used, the ground surface is connected with a metal surface directly, and then the metal surface becomes the ground surface of the antenna in practical use, so as to achieve the metal-resistant purpose; and the function of the auxiliary antenna receiving/emitting surface is to increase the surface area of the antenna, so as to enhance the receiving/emitting effects of the electromagnetic wave energy. Through the spatial design, the volume of the antenna can be reduced under the condition that the area of the antenna is increased.
Description
Technical field
The utility model relates to a kind of ultrahigh frequency electronic tag, specifically relates to a kind of ultrahigh frequency electronic tag of being made up of 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 utility model content of this project makes this technical bottleneck that new developing direction arranged.
The utility model content
The purpose of the present utility model: be exactly in order to solve the metal interference problem in the top technical barrier, a kind of small-sized passive ultrahigh frequency electronic tag economical and practical simple in structure of high reliability is provided for the application of metal environment.
The utility model in order to achieve the above object, the technical scheme that is adopted is as follows:
This anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna comprises main base material 8, the main antenna reception/surface of emission 4, and antenna ground face 9 places the ultrahigh frequency RFID chip 5 of the antenna reception/surface of emission, auxiliary base material 3, the auxiliary antenna reception/surface of emission 2.Ultrahigh frequency RFID chip both positive and negative polarity is connected with the main antenna reception/surface of emission 4 by feeder line 6; Main antenna reception/the surface of emission 4 is arranged the power feed hole 7 that is arranged on the main base material 8 by one or one and is connected with antenna ground face 9; Auxiliary antenna reception/the surface of emission 2 is isolated by auxiliary base material 3; Antenna ground face 9 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 the auxiliary antenna 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, increasing the antenna surface the purpose of the present utility model: be exactly for the metal interference problem in the technical barrier above solving, a kind of small-sized passive ultrahigh frequency electronic tag economical and practical simple in structure of high reliability is provided for the application of metal environment.Under the long-pending situation, can dwindle antenna volume.
The size of the described auxiliary antenna reception/surface of emission is less than the size of the main antenna reception/surface of emission.
Described main base material is made up of phenolics, glass fibre/epoxy resin, polypropylene, poly-cyanate ester resin, and its thickness is greater than one millimeter.
The material of the described main antenna reception/surface of emission, the auxiliary antenna reception/surface of emission is made up of gold, silver, copper, aluminum metallic material.
Described power feed hole is one or several through hole, or directly is communicated with by metal tapes such as gold, silver, copper, aluminium.
Described auxiliary reception/surface of emission leaves through hole, and the RFID chip send out/is penetrated face by this through hole and main antenna reception and is connected.
It is remarkable that electronic tag of the present utility model is used for the metal material surface effect.
RFID label of the present utility model such as above-mentioned structure, according to the principle of work of microstrip antenna,, contact with the metal surface because the back side of label itself is exactly ground plane, just increase 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 above-mentioned RFID label of the present utility model 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 the utility model electronic tag one embodiment 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 the utility model electronic tag one embodiment;
Fig. 3 is the structural representation of the electronic tag ground plane of the utility model electronic tag one embodiment;
Fig. 4 is the electronic tag general structure synoptic diagram of the utility model electronic tag one embodiment.
Concrete enforcement
Illustrate further the architectural feature of the utility model RFID label below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, shown in Figure 3, RFID label of the present utility model comprises: base material 8, place the RFID chip 5 on the base material, be connected the feeder line 6 on the RFID chip 5, the main antenna reception/surface of emission 4, antenna ground face 9, power feed hole 7, the auxiliary base material 3 and the auxiliary antenna reception/surface of emission 2 constitute.Main antenna reception/the surface of emission 4 is seated on the base material 8, and RFID chip 5 places on the main antenna reception/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, links to each other with the main antenna reception/surface of emission 4 by power feed hole 7; Auxiliary antenna receives, the surface of emission 2 places on the auxiliary base material 3, and this auxiliary substrate surface is the end face of electronic tag.Antenna ground face 9 directly contacts the surface of using this electronic tag material.
In the present embodiment, little band main antenna reception/surface of emission 4, antenna ground face 9, the auxiliary antenna reception/surface of emission 2 and feeder line 6 constitute by Copper Foil, are conductor sheet.It between conductor sheet and conductive earthing face, has encouraged 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 9.
This stacked antenna in the utility model (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 is 4 figure of the main antenna reception/surface of emission 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 be the microstrip antenna that designs as auxiliary antenna/receptions surface of emission 2, then chip 5 is seated in above the main base material 8 of the main antenna reception/surface of emission 4 by the circular port 1 of assisting the base material centre.Auxiliary antenna is received at last/surface of emission 2, auxiliary base material 3 is pressed into one with the main antenna reception/surface of emission 4, forms final antenna (as Fig. 4) again.
In the present embodiment, power feed hole 7 is an exhausting hole, the position of through hole, and size depends on the graph position and the size of main antenna reception, the surface of emission 4 and the auxiliary antenna reception/surface of emission 2, and has direct related with the input impedance of RFID 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 on the surface of RFID label insulating paint as diaphragm to prevent the main antenna reception/surface of emission of UHF electronic tag; auxiliary antenna reception/the 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 forming by stacked antenna, it is characterized in that: it is made up of the main antenna reception/surface of emission, antenna ground face, the auxiliary antenna reception/surface of emission, RFID chip and feeder line; Wherein the RFID chip is connected with main antenna emission/receiving plane, is seated in above the main base material, and the auxiliary antenna reception/surface of emission places on the main antenna emission/receiving plane, and isolated by the auxiliary base material and the main antenna reception/surface of emission; 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, and power feed hole is arranged on the main base material, and the main antenna reception/surface of emission 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: the size of the described auxiliary antenna reception/surface of emission, and less than the size of the main antenna reception/surface of emission.
3. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1, it is characterized in that: described main base material is made up of phenolics, glass fibre/epoxy resin, polypropylene, poly-cyanate ester resin, 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, it is characterized in that: the material of the described main antenna reception/surface of emission, the auxiliary antenna reception/surface of emission is made up of gold, silver, copper, aluminum metallic material.
5. the anti-metal ultrahigh frequency electronic tag of being made up of stacked antenna according to claim 1 is characterized in that: described power feed hole is one or several through hole, or directly is communicated with by gold, silver, copper, aluminum metal band.
6. the anti-metal ultrahigh frequency electronic tag of forming by stacked antenna according to claim 1, it is characterized in that: described auxiliary reception/surface of emission leaves through hole, and the RFID chip send out/is penetrated face by this through hole and main antenna reception and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202414776U CN201845353U (en) | 2010-06-28 | 2010-06-28 | Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202414776U CN201845353U (en) | 2010-06-28 | 2010-06-28 | Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna |
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| Publication Number | Publication Date |
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| CN201845353U true CN201845353U (en) | 2011-05-25 |
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| CN2010202414776U Expired - Fee Related CN201845353U (en) | 2010-06-28 | 2010-06-28 | Metal-resistant ultrahigh-frequency electronic tag consisting of stacked antenna |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298720A (en) * | 2010-06-28 | 2011-12-28 | 上海铁勋智能识别系统有限公司 | Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae |
| WO2012163296A1 (en) * | 2011-06-03 | 2012-12-06 | Liu Zhijia | Passive electronic tag |
| CN102880898A (en) * | 2011-07-13 | 2013-01-16 | 上海铁勋智能识别系统有限公司 | Ultrahigh frequency (UHF) electronic tag capable of covering UHF full frequency range and sharing with free space and metal surface |
| CN103164735A (en) * | 2011-12-16 | 2013-06-19 | 江苏安智博电子科技有限公司 | Metal-resistant super-high frequency radio frequency identification device (RFID) label |
| CN103164734A (en) * | 2011-12-16 | 2013-06-19 | 江苏安智博电子科技有限公司 | Miniaturization anti-metal ultrahigh frequency electronic tag |
| CN103473586A (en) * | 2012-06-07 | 2013-12-25 | 张蒙 | Aluminum oxide microwave ceramic RFID anti-metal tag |
| CN108577986A (en) * | 2018-05-21 | 2018-09-28 | 上海数斐信息科技有限公司 | A kind of RF tag mounting assembly, installation method and instrument |
| CN113902082A (en) * | 2021-09-29 | 2022-01-07 | 福建钰辰微电子有限公司 | Tire label and preparation method thereof |
-
2010
- 2010-06-28 CN CN2010202414776U patent/CN201845353U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298720A (en) * | 2010-06-28 | 2011-12-28 | 上海铁勋智能识别系统有限公司 | Metal-resistant ultrahigh frequency RFID tag composed of multiple layers of antennae |
| WO2012163296A1 (en) * | 2011-06-03 | 2012-12-06 | Liu Zhijia | Passive electronic tag |
| WO2012163294A1 (en) * | 2011-06-03 | 2012-12-06 | Liu Zhijia | Passive electronic tag |
| CN102880898A (en) * | 2011-07-13 | 2013-01-16 | 上海铁勋智能识别系统有限公司 | Ultrahigh frequency (UHF) electronic tag capable of covering UHF full frequency range and sharing with free space and metal surface |
| CN103164735A (en) * | 2011-12-16 | 2013-06-19 | 江苏安智博电子科技有限公司 | Metal-resistant super-high frequency radio frequency identification device (RFID) label |
| CN103164734A (en) * | 2011-12-16 | 2013-06-19 | 江苏安智博电子科技有限公司 | Miniaturization anti-metal ultrahigh frequency electronic tag |
| CN103473586A (en) * | 2012-06-07 | 2013-12-25 | 张蒙 | Aluminum oxide microwave ceramic RFID anti-metal tag |
| CN108577986A (en) * | 2018-05-21 | 2018-09-28 | 上海数斐信息科技有限公司 | A kind of RF tag mounting assembly, installation method and instrument |
| CN108577986B (en) * | 2018-05-21 | 2024-04-23 | 赛斐信息科技(南通)有限公司 | Radio frequency tag installation assembly, installation method and apparatus |
| CN113902082A (en) * | 2021-09-29 | 2022-01-07 | 福建钰辰微电子有限公司 | Tire label and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20150628 |
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| EXPY | Termination of patent right or utility model |