CN209015190U - Double frequency anti-metal tag - Google Patents
Double frequency anti-metal tag Download PDFInfo
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- CN209015190U CN209015190U CN201820768776.1U CN201820768776U CN209015190U CN 209015190 U CN209015190 U CN 209015190U CN 201820768776 U CN201820768776 U CN 201820768776U CN 209015190 U CN209015190 U CN 209015190U
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Abstract
A kind of double frequency anti-metal tag, including chip；Antenna stack, including the first antenna being electrically connected respectively with the chip and the second antenna；Special material layer, the second material including being located at the first material of the first antenna lower part and positioned at second antenna lower part, first material and the second material are for inhibiting interference signal to pass through.First antenna is high frequency antenna, and first material is ferromagnetic metal oxide matter；Second antenna is ultra-high frequency antenna, and second material is high dielectric constant absorbing material.By the way that ferromagnetic metal oxide matter and high dielectric constant absorbing material is arranged, it can be avoided inhibition and shielding of the metal object to high-frequency signal and ultra-high frequency signal, further increase the working performance of high frequency antenna and ultra-high frequency antenna.
Description
Technical field
The utility model relates to radio RF recognition technology field, in particular to a kind of double frequency anti-metal tag.
Background technique
Currently, electronic tag is widely used as the information carrier of Internet of Things with the in-depth of social informatization degree.
Electronic tag, also known as wireless radio frequency discrimination RFID are a kind of wireless communication techniques, and specific mesh can be identified by radio signals
Related data is marked and reads and writes, without establishing mechanical or optical contact between identifying system and specific objective.
With the fermentation of internet of things concept, Radio Frequency Identification Technology is more and more paid attention to.Countries in the world and major group
It knits and relevant art standard has all been formulated according to own situation, the band limits that different standards is related to also is not quite similar.In only
Just there are two frequency ranges of 840MHz-845MHz and 920MHz-925MHz in state.And as the anti-of Radio Frequency Identification Technology important component
Metal electronic tag is used for the identification that surface is the object of metal, for example, container, fire extinguisher.Anti-metal electricity at present
Subtab is widely used and there are also biggish application prospects.But anti-metal tag narrower bandwidth under normal conditions, can only
For single frequency range, there is biggish application limitation.
In technical field of RFID, generally in 13.56MHz, the wavelength of the frequency can pass through the working frequency range of high frequency antenna
Most of material, the frequency range are the frequency ranges that have been widely used at present, this is a comparative maturity and most active industry,
It is widely used to the fields such as anti-fake, logistics, personal identification.The working frequency range of ultra-high frequency antenna is generally in 860MHz to 960MHz
Between, ultra-wideband systems transmit energy by electric field, and the energy decline of electric field is not that quickly, but the region read is not
It is defined very well.The frequency range is read apart from distant, passive reachable 10m or so.Be mainly used in Homeland Security, supply chain,
Logistics, Mobile business, anti-fake, electronic license, storehouse management, airdrome luggage management etc., this is a future most business opportunity and incites somebody to action
It is widely deployed the frequency range with application.
And with the development of Radio Frequency Identification Technology, increase suitable for the demand of high frequency and the RFID tag of hyperfrequency double frequency
It is more.Wherein high-frequency work principle is the mode of inductive coupling, and hyperfrequency working principle is then that electromagnetic wave backscattering works, two
The working method of a frequency range is entirely different, but in metal environment, the RFID performance of two kinds of frequency ranges all shows identical shape
State is attached to the RFID electronic label of two kinds of frequency ranges of metal surface due to the shadow by metallic conductor to signal inhibition and shielding
It rings, such that regardless of being RFID high frequency or RFIDnt ultra-high frequency part is can not work completely.
Therefore, in current technical field of RFID, needing one kind can work in metal surface and be suitable for high frequency
With the RFID tag of hyperfrequency double frequency.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome high frequency and hyperfrequency double frequency in the prior art
The defect that signal is inhibited and is shielded by metallic conductor when RFID tag uses on the metal surface.
For this purpose, providing a kind of double frequency anti-metal tag, comprising:
Chip；
Antenna stack, including the first antenna being electrically connected respectively with the chip and the second antenna；
Special material layer, including being located at the first material of the first antenna lower part and positioned at second antenna lower part
Second material, first material and the second material are for inhibiting interference signal to pass through.
Further,
The first antenna is high frequency antenna, and first material is ferromagnetic metal oxide matter；
Second antenna is ultra-high frequency antenna, and second material is high dielectric constant absorbing material.
Further,
The chip is electrically connected with the first antenna and second antenna respectively by way of encapsulation or routing
It connects.
Further,
The special material layer is connected with adhesive layer.
Further,
Metal layer is provided between the special material layer and the adhesive layer.
Further,
Further include precoat, be set to the top of the chip, antenna stack and special material layer, with the chip or antenna
Any one in layer is fixed.
Further,
For the chip between antenna stack and special material layer, the sectional area of the chip is less than antenna stack and special material
The rest part that the sectional area of the bed of material, antenna stack and special material layer are connect with chip is connected by adhesive layer.
Further,
The high frequency antenna working method is the mode of inductive coupling；
The working method of the ultra-high frequency antenna is the mode of electromagnetic wave backscattering.
Technical solutions of the utility model have the advantages that
1. on the one hand double frequency anti-metal tag provided by the utility model is directed to ultra-high frequency antenna provided with high dielectric constant
Absorbing material layer, primarily directed to the working principle of high frequency antenna and ultra-high frequency antenna difference and be arranged, high frequency antenna work
Principle be inductive coupling mode, therefore using layers of metal oxide materials can be better achieved high frequency antenna at work its
The conducting of the magnetic line of force can enhance the working signal of high frequency antenna, so as to avoid metal to the inductance coupling of high frequency antenna
The inhibition of conjunction.It on the other hand, is then electromagnetic wave backscattering work, ultra-high frequency antenna and height for ultra-high frequency antenna working principle
The combination of dielectric constant absorbing material layer is capable of forming the anti-metal material of hyperfrequency in itself, further avoids metal pair
The shielding and inhibition of ultra-high frequency antenna working signal.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of composed structure block diagram of double frequency anti-metal tag in the utility model embodiment；
Fig. 2 is the knot for material layer and antenna stack in double frequency anti-metal tag provided in the utility model embodiment
Structure schematic diagram；
Fig. 3 is the specific structure layer composition block diagram for the double frequency anti-metal tag that the utility model one embodiment provides；
Fig. 4 is fixed on the structural representation of metal material surface for the double frequency anti-metal tag in the utility model embodiment
Figure；
Fig. 5 is a kind of schematic diagram of a layer structure of embodiment of the double frequency anti-metal tag in the utility model embodiment；
Fig. 6 is the layer structural representation of the another embodiment of the double frequency anti-metal tag in the utility model embodiment
Figure；
Fig. 7 is the layer structural representation of the another embodiment of the double frequency anti-metal tag in the utility model embodiment
Figure；
Fig. 8 is the layer structural representation of the another embodiment of the double frequency anti-metal tag in the utility model embodiment
Figure.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.In addition, following institute
Technical characteristic involved in the utility model different embodiments of description as long as they do not conflict with each other can phase
Mutually combine.
Fig. 1 has shown a kind of implementation of double frequency anti-metal tag provided by the embodiment of the utility model.Such as Fig. 1 institute
Show, double frequency anti-metal tag provided by the utility model embodiment includes chip, antenna stack and special material layer.
Wherein chip is RFID RF identification chip.
Antenna stack includes the first antenna being electrically connected respectively with chip and the second antenna, and first antenna is high frequency antenna, high
The working frequency range of frequency antenna is generally in 13.56MHz.Second antenna is ultra-high frequency antenna, and the working frequency range of ultra-high frequency antenna is general
Between 860MHz to 960MHz.
Special material layer, the second material including being located at the first material of first antenna lower part and positioned at the second antenna lower part
Material, the first material and the second material are for inhibiting interference signal to pass through.Wherein the first material is ferromagnetic metal oxide matter,
For electrical characteristics, ferritic resistivity ratio metal, alloy magnetic material are much bigger, and there are also higher dielectric properties.
Ferritic magnetic property is also manifested by magnetic conductivity with higher when high frequency.Thus, ferrite has become high frequency light current field use
The extensive nonmetal magnetic material in way.Second material is high dielectric constant absorbing material, and wherein chip is by falling to encapsulate or beat
The mode of line is electrically connected with the first antenna and second antenna respectively.
The double frequency anti-metal tag can be fixed on the surface of metal, be read by RFID reader.Wherein antenna
Layer is then stored with Item Information for carrying out the transmitting of radiofrequency signal with RFID reader in RFID chip, for uniquely marking
The article is known, after the radiofrequency signal that the RFID reader that antenna stack receives transmits, by the Item Information in RFID chip to penetrate
Frequency mode returns to RFID reader, to realize RFID reader for the radio frequency identification of article.
Fig. 2 shows provided in the utility model embodiment for the material layer and antenna stack in double frequency anti-metal tag
Structure chart.
As shown in Fig. 2, metal oxide layer is correspondingly arranged in below high frequency antenna；High dielectric constant absorbing material layer is corresponding
It is set to below ultra-high frequency antenna.
The utility model embodiment is provided with layers of metal oxide materials for high frequency antenna, is arranged for ultra-high frequency antenna
High dielectric constant absorbing material layer, primarily directed to the working principle of high frequency antenna and ultra-high frequency antenna difference and be arranged,
High frequency antenna working principle is the mode of inductive coupling, therefore high frequency day can be better achieved using layers of metal oxide materials
The conducting of line its magnetic line of force at work, can enhance the working signal of high frequency antenna, so as to avoid metal to high frequency
The inhibition of the inductive coupling of antenna.And ultra-high frequency antenna working principle be then electromagnetic wave backscattering work, ultra-high frequency antenna with
The combination of high dielectric constant absorbing material layer is capable of forming the anti-metal material of hyperfrequency in itself, further avoids metal
Shielding and inhibition to ultra-high frequency antenna working signal.
Fig. 3 shows the specific structure layer composition frame for the double frequency anti-metal tag that the utility model one embodiment provides
Figure.
Anti-metal tag further includes precoat in the utility model embodiment；Precoat is set to above antenna stack, fabric
Layer and antenna stack are fixed by adhesive layer.
Fig. 4 is fixed on the structural representation of metal material surface for the double frequency anti-metal tag in the utility model embodiment
Figure；It bonded, fixed between adhesive layer and metal by special material layer lower part.
For chip between antenna stack and special material layer, the sectional area of chip is less than section of antenna stack and special material layer
The rest part that area, antenna stack and special material layer are connect with chip is connected by adhesive layer.
Fig. 5 is a kind of schematic diagram of a layer structure of embodiment of the double frequency anti-metal tag in the utility model embodiment,
Wherein special material layer includes ferromagnetic metal oxide party and high dielectric constant absorbing material part, and high dielectric constant is inhaled
Wave material part is located at the lower part and a side of ferromagnetic metal oxide party.And in the lower part of special material layer
It is provided with metal layer, the lower part of metal layer is provided with adhesive layer.
Fig. 6 is the layer structural representation of the another embodiment of the double frequency anti-metal tag in the utility model embodiment
Figure, is, ferromagnetic metal oxide party and high dielectric constant absorbing material portion with the difference in embodiment illustrated in fig. 5
/ be set side by side.
Fig. 7 is the layer structural representation of the another embodiment of the double frequency anti-metal tag in the utility model embodiment
Figure, is, antenna stack is set to the top of chip, so that chip is located at antenna with the difference in embodiment illustrated in fig. 5
Between layer and special material layer.
Fig. 8 is the layer structural representation of the another embodiment of the double frequency anti-metal tag in the utility model embodiment
Figure, is, antenna stack is set to the top of chip, so that chip is located at antenna with the difference in embodiment illustrated in fig. 6
Between layer and special material layer.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (8)
1. a kind of double frequency anti-metal tag, characterized in that include:
Chip；
Antenna stack, including the first antenna being electrically connected respectively with the chip and the second antenna；
Special material layer, including being located at the first material of the first antenna lower part and positioned at the second of second antenna lower part
Material, first material and the second material are for inhibiting interference signal to pass through.
2. label according to claim 1, characterized in that
The first antenna is high frequency antenna, and first material is ferromagnetic metal oxide matter；
Second antenna is ultra-high frequency antenna, and second material is high dielectric constant absorbing material.
3. label according to claim 1, characterized in that
The chip is electrically connected with the first antenna and second antenna respectively by way of encapsulation or routing.
4. label according to claim 1, characterized in that
The special material layer is connected with adhesive layer.
5. label according to claim 4, characterized in that
Metal layer is provided between the special material layer and the adhesive layer.
6. label according to claim 1, characterized in that
Further include precoat, be set to the top of the chip, antenna stack and special material layer, in the chip or antenna stack
Any one fix.
7. label according to claim 1, characterized in that
For the chip between antenna stack and special material layer, the sectional area of the chip is less than antenna stack and special material layer
Sectional area, the rest part that antenna stack and special material layer are connect with chip pass through adhesive layer connect.
8. label according to claim 2, characterized in that
The high frequency antenna working method is the mode of inductive coupling；
The working method of the ultra-high frequency antenna is the mode of electromagnetic wave backscattering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768776.1U CN209015190U (en) | 2018-05-21 | 2018-05-21 | Double frequency anti-metal tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768776.1U CN209015190U (en) | 2018-05-21 | 2018-05-21 | Double frequency anti-metal tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209015190U true CN209015190U (en) | 2019-06-21 |
Family
ID=66828491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820768776.1U Active CN209015190U (en) | 2018-05-21 | 2018-05-21 | Double frequency anti-metal tag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345932A (en) * | 2018-05-21 | 2018-07-31 | 宜兴启明星物联技术有限公司 | Double frequency anti-metal tag |
| CN110889481A (en) * | 2019-10-22 | 2020-03-17 | 北京握奇智能科技有限公司 | Separated dual-antenna intelligent card and manufacturing method thereof |
-
2018
- 2018-05-21 CN CN201820768776.1U patent/CN209015190U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345932A (en) * | 2018-05-21 | 2018-07-31 | 宜兴启明星物联技术有限公司 | Double frequency anti-metal tag |
| CN110889481A (en) * | 2019-10-22 | 2020-03-17 | 北京握奇智能科技有限公司 | Separated dual-antenna intelligent card and manufacturing method thereof |
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