CN203502989U - Ultrahigh-frequency passive electronic label used for automobile windshield - Google Patents
Ultrahigh-frequency passive electronic label used for automobile windshield Download PDFInfo
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- CN203502989U CN203502989U CN201320597425.6U CN201320597425U CN203502989U CN 203502989 U CN203502989 U CN 203502989U CN 201320597425 U CN201320597425 U CN 201320597425U CN 203502989 U CN203502989 U CN 203502989U
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- 239000000758 substrate Substances 0.000 claims abstract description 14
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- 229910052751 metal Inorganic materials 0.000 description 11
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 8
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- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
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- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
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Abstract
An ultrahigh-frequency passive electronic label used for an automobile windshield is characterized in that the electronic label comprises a substrate, a label antenna and an ultrahigh-frequency radio frequency chip, wherein the label antenna is etched on the substrate, the ultrahigh-frequency radio frequency chip is provided with a label antenna interface, and the ultrahigh-frequency radio frequency chip is welded on a feed terminal of the label antenna. The size of the antenna is 67mm x 21mm. The label antenna comprises a short-circuit wire, a stub wire, an open circuit stub wire, a radiating body and antenna holes, wherein the stub wire is formed by a T-shaped matching conductor and a part of dipoles; the short-circuit wire is used for adjusting the resistance matching of the label antenna, and the stub wire is used for adjusting the reactance matching of the label antenna so as to form conjugate matching between the overall impedance of the label antenna and the impedance of the label chip; and each antenna hole is triangle-shaped, and by changing the shapes, the positions and the number of the antenna holes, the freedom degree of the conjugate matching is increased.
Description
Technical field
The utility model relates to vehicular traffic management domain, is specifically related to a kind of ultrahigh-frequency passive electronic tag for windshield.
Background technology
At present, in city and highway wisdom field of traffic control, on vehicle, generally all the identification label of electronics can be installed, conventionally require electronic tag to be mounted on shield glass, to facilitate the management to automobile.In reality car owner generally all can be on windshield pad pasting, as solar film, blow-out disc etc., in this type of film, contain metal ingredient, easily cause the signal off resonance of electronic tag, weaken electronic tag acknowledge(ment) signal intensity, affected the serviceability of electronic tag.So be subject to the impact of shield glass, windshield metal pad pasting, electronic label read-write distance is enough not far away, even can not be identified, so general ultrahigh-frequency passive electronic tag is difficult to meet the demand of vehicle operating environment, uses to identification electronic tag and bring inconvenience greatly.Application number 201220424937.8, the Chinese patent application that name is called " electronic tag " discloses a kind of vehicle electronic label special, can be used on the vehicle of metal film, but the metal film that must prescind label sizes size on windshield just can normally be used, and in actual use, has significant limitation.
In the practice of vehicle management simultaneously, the material of electronic tag substrate is had to more demand, application number 201120215609.2, the Chinese patent application that name is called " the glass substrate remote passive electronic tag that can be affixed on automobile windscreen inner " discloses a kind of remote passive electronic tag, this electronic tag is used frangible glass substrate, cannot solve the demand to the electronic tag of the substrates such as PET, papery, pottery, PVC in practical application.
Defect for existing electronic tag, need especially a kind of special-purpose ultrahigh-frequency passive electronic tag of vehicle with anti-windshield and adhering film to glass characteristic and remote recognition capability, to solve above-mentioned problem, meet under vehicle Free-flow environment that read write line is remote to electronic tag, reliable recognition.
Utility model content
The purpose of this utility model is to provide a kind of ultrahigh-frequency passive electronic tag for windshield, solved the impact of windshield and glass metal pad pasting, met under vehicle Free-flow environment, read write line is remote to ultrahigh-frequency passive electronic tag, the demand of reliable recognition.
The technical scheme that the utility model adopts is specifically achieved in that
A kind of ultrahigh frequency electronic tag for windshield, by substrate, label antenna, super high frequency radio frequency chip forms, described label antenna is etched on described substrate, described super high frequency radio frequency chip is provided with label antenna interface, and described ultrahigh frequency radio frequency identification chip is welded in the feed port of described tag antenna structure.Label antenna is symmetrical type structure, and label antenna comprises short-circuit line, stub, and open stub, radiator, antenna hole, described stub is formed jointly by T-shaped match conductors and part dipole.
Can be by changing the length of described short-circuit line and the resistors match that width is adjusted described label antenna, by changing the length of described stub and width, adjust label antenna reactance and mate.
Described label antenna two ends have six antenna holes symmetrically, described antenna hole be shaped as equilateral triangle, by changing shape, position or the quantity of described antenna hole, can increase the degree of freedom of conjugate impedance match, thereby make antenna there is the characteristics such as miniaturization and multiband resonance.
Between described stub and described open stub, form a brief T-shaped gap, there is certain end capacity effect.
Described substrate material is one of following: PET, paper, pottery, PVC.
Preferably, the stiffness of coupling between described antenna radiator and described stub is subject to the gap affects between open stub open end, narrower gap, and stiffness of coupling is stronger, and gap is wider, and stiffness of coupling is more weak.Meanwhile, the variation in gap causes the variation of the size of described antenna radiator, has also changed the resonance frequency of described label antenna.
Preferably, described label antenna is symmetrical structure, and length is about 67mm, and width is about 21mm.
Preferably, the main production method of described label antenna is that aluminum metal (Aluminum) forms with etching technique (Etching) manufacture.Thickness 8～10 μ m; Or adopting silver slurry (Argentum) printing, the thickness of described silver slurry printing is 6～20 μ m.
Ultrahigh-frequency passive electronic tag for windshield of the present utility model, penetrable shield glass, automobile metal pad pasting, met that under vehicle Free-flow environment read write line is remote to ultrahigh-frequency passive electronic tag, the demand of reliable recognition.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of ultrahigh-frequency passive electronic tag for windshield of the utility model specific embodiment.
Fig. 2 is the dimensional drawing of a kind of ultrahigh-frequency passive electronic tag for windshield of the utility model specific embodiment.
The represented corresponding component title of numeral in figure:
10. substrate 20. super high frequency radio frequency chip 30. label antenna 31. short-circuit lines
32.T type match conductors 33. open stub 34. stub 35. radiatoies
36. open end 40 antenna holes
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, it will be more clear making above-mentioned and other object of the present utility model, Characteristics and advantages.In whole accompanying drawings, identical Reference numeral is indicated identical part.
Fig. 1 is the structural representation of a kind of ultrahigh-frequency passive electronic tag for windshield of the utility model specific embodiment.As shown in Figure 1, the ultrahigh-frequency passive electronic tag for windshield of the utility model specific embodiment, it comprises: substrate 10, super high frequency radio frequency chip 20, and label antenna 30, described ultrahigh frequency radio frequency identification chip 20 is welded in the feed port of described label antenna 30.Described label antenna 30 is symmetrical structure.In the utility model specific embodiment, label antenna length is 67mm, and width is 21mm.
In the utility model specific embodiment, the width of short-circuit line 31 is 6.7mm, and length is 17mm.By regulating width and the length of short-circuit line, realize the resistors match of label antenna.
In the utility model specific embodiment, the width of open stub 33 is 6.5mm, and length is 7.5mm, and the gap between open stub 33 open ends is 2mm, narrower gap, and stiffness of coupling is stronger, and gap is wider, and stiffness of coupling is more weak.Meanwhile, the variation in gap causes the variation of the size of described antenna radiator, has also changed the resonance frequency of described label antenna.
In the utility model specific embodiment, the width of stub 34 is 2.2mm, and length is 7.5mm.Stub 34 is formed jointly by T-shaped match conductors and part dipole, and for adjusting the reactance coupling of label antenna, the while is as the feed end of label antenna 30.The end of short-circuit line 34 is welded on respectively RF+ and the RF-port of super high frequency radio frequency chip 20.
In the utility model specific embodiment, radiator 35 is used for increasing antenna reception area, thereby strengthens signal receiving strength.On radiator 34, be provided with six antenna holes 35, each antenna hole is shaped as the equilateral triangle that the length of side is 6.7mm.By changing shape, position or the quantity of antenna hole, can increase the degree of freedom of conjugate impedance match, thereby make antenna there is the characteristics such as miniaturization and multiband resonance.
In the utility model specific embodiment, label antenna 30 outward appearances are the opaque solid of metallic aluminium silver color, become opaque metal face form, thickness 8～10 μ m, and the present embodiment is preferably used 9 μ m.Label antenna 30 is that aluminum metal (Aluminum) forms with etching technique (Etching) manufacture.Label antenna 30 also can adopt silver slurry (Argentum) printing, and the thickness of described silver slurry printing is 6～20 μ m.
In the utility model specific embodiment, the signal frequency range of described super high frequency radio frequency chip 20 is the 920～925MHz that is applicable to Chinese radio communication standard.By changing each ingredient of antenna 30, can change communications band, make described 840～845MHz or the 920～925MHz that meets Chinese radio communication standard for the ultrahigh-frequency passive electronic tag of windshield, or the international frequency range of 860～960MHz.
Described label antenna is about 65～80mm, wide approximately 20～30mm, and in the utility model specific embodiment, the length of whole identification electronic tag is 67mm, and wide is 21mm, and the signal frequency range of super high frequency radio frequency chip 20 is 840～845MHz or 920～925MHz.The object of this label antenna design of the utility model is in order to reach the particularly optimum efficiency of Chinese radio communication standard (840 to 845MHz and 920 to 925MHz) hypersensitivity overlength distance read-write of hyper band (UHF), through repetition test repeatedly, have compared with the beneficial effect of prior art great-leap-forward.The line size size change of label antenna 30 or displacement are all in the scope of positive and negative 2 millimeters, and the wide variety scope of short-circuit line 31 is 6mm～8mm, and length variations scope is 15～20mm; The wide variety scope of open stub 33 is 6-8mm, and length variations scope is 6.5mm～8.5mm; The wide variety scope of stub is 1.5mm～3mm, and length variations scope is 6.5mm～8.5mm; Antenna hole 35 be shaped as the triangle that side size range is 5～8mm, the shape of antenna hole is not only confined to the equilateral triangle in embodiment, the difformities such as the T shape of varying number, rectangle, circle, or the antenna hole of the combination of described shape also can increase the degree of freedom of conjugate impedance match, thereby make label antenna 30 there is the characteristics such as miniaturization and multiband resonance.By changing the size of each ingredient of label antenna 30, can form different conjugate impedance match, resonance frequency.If it is too large that size changes, its effect can reduce greatly, is embodied in receiving range and greatly reduces.
The super high frequency radio frequency identification electronic tag of the utility model specific embodiment is read sensitivity and can be reached-20～-25dBm, according to manufacturing process and batch difference, can have the deviation of 1～2dBm; Typical case's multibyte reading speed is about 2～5ms.In addition, by the radio frequency recognizing electronic label of this setting, write sensitivity and can reach-14～-23dBm, according to manufacturing process and batch difference, can have the deviation of 1～2dBm; Typical case's multibyte writing speed is about 20～40ms.
Generally can be on front windshield on Chinese automobile pad pasting, in these solar films or blow-out disc, generally contain metal ingredient, these metal ingredients can make signal off resonance, weaken label received signal strength, have directly affected the serviceability of ultrahigh frequency (UHF) label.Actual test shows, when the super high frequency radio frequency identification electronic tag Inlay of this kind of design directly being sticked on to the automobile windscreen inner of containing metal film, (directly paste, without any obstruct) time, read write line is the effective information in reading electronic labels still, can reach farthest 40 meters.Therefore the application of danger sign, environmental mark (papery radio frequency identification marker) is forced in the most applicable vehicle annual test sign, traffic, same described electronic tag can be packaged into ceramic card, the forms such as PVC card, papery, for the management domain of vehicular traffic, can reach same recognition effect.
Ultrahigh-frequency passive electronic tag for windshield of the present utility model, by super high frequency radio frequency chip is made with etching technique with adopting aluminum metal, or adopting silver slurry (Argentum) printing to manufacture the label antenna forming is used in combination, penetrable automobile metal pad pasting, reading/writing distance are far away, read-write efficiency, success ratio and accuracy rate high, reach send and the intensity of acknowledge(ment) signal, improve electronic tag serviceability, guarantee running car conveniently and facilitate the object of road management.
In above description, a lot of details have been set forth so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be implemented to be much different from alternate manner described here, so the utility model is not subject to the restriction of disclosed concrete enforcement above.Any skilled personnel are not departing from technical solutions of the utility model scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Every content that does not depart from technical solutions of the utility model,, all still belongs in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present utility model.
Claims (6)
1. the ultrahigh-frequency passive electronic tag for windshield, it is characterized in that, described electronic tag includes substrate, label antenna, super high frequency radio frequency chip, described label antenna is etched on described substrate, and described super high frequency radio frequency chip is provided with label antenna interface, and described ultrahigh frequency radio frequency identification chip is welded in the feed port of described tag antenna structure; Described label antenna is symmetrical type structure; Described label antenna comprises short-circuit line, stub, and open stub, radiator, antenna hole, described stub is formed jointly by T-shaped match conductors and part dipole.
2. a kind of ultrahigh-frequency passive electronic tag for windshield according to claim 1, it is characterized in that, by changing the length of short-circuit line and the resistors match that width is adjusted described label antenna, by changing the length of stub and width, adjust described label antenna reactance and mate.
3. a kind of ultrahigh-frequency passive electronic tag for windshield according to claim 1, it is characterized in that, described label antenna two ends have six antenna holes symmetrically, described antenna hole be shaped as equilateral triangle, by changing shape, position or the quantity of described antenna hole, can increase the degree of freedom of conjugate impedance match.
4. a kind of ultrahigh-frequency passive electronic tag for windshield according to claim 1, is characterized in that, forms a brief T-shaped gap between described stub and described open stub, has certain end capacity effect.
5. a kind of ultrahigh-frequency passive electronic tag for windshield according to claim 1, is characterized in that, described substrate material is one of following: PET, paper, pottery, PVC.
6. a kind of ultrahigh-frequency passive electronic tag for windshield according to claim 1, it is characterized in that, the signal frequency range of described super high frequency radio frequency chip is 840845MHz or the 920～925MHz that is applicable to Chinese radio communication standard, or the international frequency range of 860～960MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597425.6U CN203502989U (en) | 2013-09-25 | 2013-09-25 | Ultrahigh-frequency passive electronic label used for automobile windshield |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320597425.6U CN203502989U (en) | 2013-09-25 | 2013-09-25 | Ultrahigh-frequency passive electronic label used for automobile windshield |
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| CN203502989U true CN203502989U (en) | 2014-03-26 |
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| CN201320597425.6U Expired - Fee Related CN203502989U (en) | 2013-09-25 | 2013-09-25 | Ultrahigh-frequency passive electronic label used for automobile windshield |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104408510A (en) * | 2014-08-27 | 2015-03-11 | 北京中电华大电子设计有限责任公司 | A plane gap label |
| CN104463309A (en) * | 2013-09-25 | 2015-03-25 | 江苏本能科技有限公司 | Ultrahigh frequency passive radio frequency identification tag used for automobile windshield |
| CN109888483A (en) * | 2019-01-03 | 2019-06-14 | 南京南瑞微电子技术有限公司 | A kind of RFID label tag printed antenna structure |
-
2013
- 2013-09-25 CN CN201320597425.6U patent/CN203502989U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104463309A (en) * | 2013-09-25 | 2015-03-25 | 江苏本能科技有限公司 | Ultrahigh frequency passive radio frequency identification tag used for automobile windshield |
| CN104463309B (en) * | 2013-09-25 | 2017-10-31 | 江苏本能科技有限公司 | A kind of ultrahigh-frequency passive electronic tag for windshield |
| CN104408510A (en) * | 2014-08-27 | 2015-03-11 | 北京中电华大电子设计有限责任公司 | A plane gap label |
| CN109888483A (en) * | 2019-01-03 | 2019-06-14 | 南京南瑞微电子技术有限公司 | A kind of RFID label tag printed antenna structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU BELLON TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHEN HAO Effective date: 20141201 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210002 NANJING, JIANGSU PROVINCE TO: 210036 NANJING, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141201 Address after: 210036, Jiangsu, Hanzhoung Nanjing Avenue 298, Yuhua, 2, 2, 701 rooms Patentee after: JIANGSU BELLON TECHNLOGY CORP. Address before: Room 1508, block A, new Century Square, Zhongshan East Road, Nanjing, Jiangsu, 210002 Patentee before: Chen Hao |
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| DD01 | Delivery of document by public notice |
Addressee: Xia Maimai Document name: Notification of Passing Examination on Formalities |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20180925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |