CN201549584U - Single-grade ultrahigh-frequency electronic label antenna - Google Patents
Single-grade ultrahigh-frequency electronic label antenna Download PDFInfo
- Publication number
- CN201549584U CN201549584U CN2009202114196U CN200920211419U CN201549584U CN 201549584 U CN201549584 U CN 201549584U CN 2009202114196 U CN2009202114196 U CN 2009202114196U CN 200920211419 U CN200920211419 U CN 200920211419U CN 201549584 U CN201549584 U CN 201549584U
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- antenna
- electronic label
- becket
- meander line
- label
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Abstract
The utility model discloses a single-grade ultrahigh-frequency electronic label antenna, the antenna is integrally rectangle, and comprises a metal ring connected with an electronic label chip and a curved line with the start point connected with the metal ring, one short edge of the metal ring is broken to form two ports of the antenna, the curved line starts at the end of the metal ring, and extends towards the integral short direction of the antenna, after the antenna is bent each time, the length of the curved line in the antenna long edge direction is increased. According to the utility model, the polarization of the antenna in the short edge direction of the antenna can be realized by using the impedance-matched inductance ring and curved line, while by the omnidirectional form of a direction graph in the antenna vertical plane parallel to the antenna long edge, the electromagnetic field can keep off the metal at the top of the single grade and the liquid at the lower part of the single grade. thereby the label antenna can be used in the environment where the metal is arranged at the top of the single grade and the liquid is arranged at the lower part.
Description
Technical field
The utility model relates to antenna technology, particularly relates to a kind of single grade ultrahigh frequency electronic tag antenna.
Background technology
In recent years, automatic identifying method is in many service fields, aspect sale of goods and the logistics distribution, in commercial department, obtained popularizing fast and promoting in manufacturing enterprise and the material field of circulation.
Bar code is taken advantage of paper tape again, has caused a revolution several years ago in the recognition system field and has obtained extensive use.Today, this bar code can not satisfy people's demand under increasing situation.Though bar code is very cheap, its weak point is that storage capacity is little and can not rewrite.
A kind of technical best solution be with storage in a silicon.In daily life, having the IC-card of arranging the contact (phone IC-card, bank card etc.) is the most general structure of electric data carrier.Yet concerning IC-card, in many cases, the connection of mechanical contact is insecure.Data between the reader under data medium and one are carried out non-contact transmission with much flexible.According to the energy and the data transmission method that use, we are called radio-frequency recognition system (RFID-RadioFrequency Identification) to non-contacting recognition system.Therefore, RFID is that a kind of radio wave that utilizes is read and write programmed recording medium, radio-frequency technique is combined with the IC-card technology and can be used for the technology of remote, moving-target, wireless identification.
Metal can reflect the electromagnetic wave of hyperfrequency, will cause certain location tags received energy deficiency not work if the electromagnetic crest of the electromagnetic wave of reflection and reader direct projection and trough meet; Alternating magnetic fields runs into metal can produce eddy current, will offset the magnetic field of incident, and then reduces the penetration depth of electromagnetic wave to metal, its energy of decaying.And liquid can absorb the electromagnetic wave energy of hyperfrequency, makes the directional diagram of pasting far field antenna in the above change, and then reduces its communication distance.Ultrahigh frequency electronic tag has excellent performance in case level and the identification of pallet level.The viewpoint that radio-frequency (RF) identification is traditional thinks that hyperfrequency is not suitable for single grade sign, because the packing of liquid, metal and small article is too tight, the UHF label can't operate as normal.In fact, can be by reasonably adjusting the directional diagram and the far field near-field working mode of antenna, any can also can identifying with the hyperfrequency system with the thing of 13.56MHz system identification comprises the article that include liquid or metal.What is more important, single grade label also can be shared the benefit that ultrahigh frequency electronic tag brings supply chain.
13.56MHz high-frequency tag antenna be to need the gap bridge performance of double layer of metal could realize multi-turn antenna and chip coupled together constituting the closed-loop path.And the design of ultrahigh frequency electronic tag antenna only need be used layer of metal.Manufacturing process is simple, further saves cost.And the low-cost low relatively single grade of price that just label may be generalized to is used.
Fig. 1 is a kind of single grade label environment for use schematic diagram.Pasting laterally long label 13 on the bottle cap 11 of the container 10 of dress liquid, is a metal derby 12 at the top of bottle cap.The directional diagram of electronic label antenna is the shape of similar apple mostly, the polarised direction of label apple the axis at place on, be the linear polarization direction.If label integral body is strip, the polarised direction of general antenna is at the long side direction of label.Label 13 among Fig. 1 is more common a kind of electronic label antennas, and its integral body presents rectangle, concrete outcome as shown in Figure 2, its irradiation of electromagnetic waves direction is to be parallel in the antenna vertical plane of antenna minor face.Its polarised direction is the X-axis of plane right-angle coordinate, just the long side direction of antenna.Can both read label if require container arbitrarily to rotate in the horizontal direction, the read direction of reader will be defined as the top and read, and at this time, the metal derby 12 at top can reflect incident electromagnetic wave, liquid below the label can absorb incident electromagnetic wave, can cause the reduction of communication distance.
If the long limit of label shown in Figure 2 is vertically put, the antenna pattern of label can and then revolve and turn 90 degrees, and the random rotation of container so in the horizontal direction can be read label in the horizontal direction.But the corresponding character pattern of label surface etc. can and then revolve and turn 90 degrees like this, does not meet aesthetics, simultaneously when flowing fluid ratio is expired, is exactly liquid below a part of label area, can reduce the performance of label.
The utility model content
For overcoming the deficiency of above-mentioned prior art, the technical problems to be solved in the utility model provides a kind of single grade ultrahigh frequency electronic tag antenna, can be operated in metal environment and the liquid environment, when keeping the label lateral length, the antenna pattern of label antenna is that the vertical direction of container neck is an omnidirectional in the horizontal direction, makes reader to rotate any angle in this electronic tag place vessel level and can both well read label.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of single grade ultrahigh frequency electronic tag antenna, this antenna integral body is rectangle, and comprises the meander line that the becket that is connected with electronic label chip and starting point are connected with this becket; A minor face of this becket disconnects two ports that form antenna; This described meander line originates in the end of described becket, and to the whole short side direction extension of antenna, after each bending, the meander line length of length of antenna's edge direction increases.
The terminal live width of described meander line is widened.
Four corners of described meander line end are curved.
Described becket is rectangle, and its long limit is parallel with the whole long side direction of this antenna, and the minor face of described becket is parallel with the whole short side direction of this antenna.
Two ports and the electronic label chip of described antenna connect and compose a closed circuit.
The support pad of two metal dots as electronic label chip arranged respectively in the both sides of antenna port.
The polarised direction of this antenna is at the short side direction of this rectangle antenna.
The antenna pattern of this antenna is in being parallel to the antenna vertical plane on length of antenna limit.
Compared with prior art, the beneficial effects of the utility model can be:
This novel electronic label antenna is operated in metal environment and the liquid environment, container top at the label paste position has metal lid, and liquid is arranged below, and both distances are very near, no matter how this container rotates in the horizontal plane direction, and reader can both read this electronic tag.The Liquid Absorption that the antenna pattern of label antenna can be avoided top metal reflection and bottom has realized good performance.
Description of drawings
Fig. 1 is a kind of environment for use schematic diagram of single grade electronic tag;
Fig. 2 is a kind of small size label antenna schematic diagram of routine;
Fig. 3 is the schematic diagram of the utility model label antenna;
Fig. 4 is a kind of deformation structure schematic diagram of the utility model label antenna.
Embodiment
Below in conjunction with drawings and Examples embodiment of the present utility model is further described in detail, but should limit protection range of the present utility model with this.
See also the schematic diagram of Fig. 3 the utility model label antenna.This novel single grade ultrahigh frequency electronic tag antenna, this antenna integral body is rectangle, and comprises the meander line 34 that the becket 33 that is connected with electronic label chip and starting point are connected with this becket.Described becket 33 is rectangle, and is positioned in the middle of the antenna, and its long limit is parallel with the whole long side direction of this antenna, and the minor face of described becket 33 is parallel with the whole short side direction of this antenna.
A minor face of this becket disconnects two ports 30 that form antenna.Two ports 30 and the electronic label chip of described antenna connect and compose a closed circuit.
Described meander line 34 originates in the end of described becket, and to the whole short side direction extension of antenna, after each bending, the meander line length of length of antenna's edge direction increases, and constitutes along the radial structure of minor face.End 35 live widths of meander line are widened, and four terminal corners 36 are curved.The live width of terminal meander line increases, the gain that has increased antenna when regulating the impedance of antenna.
The both sides of antenna port have the support pad 31 of two metal dots as electronic label chip respectively, are not connected with the live part of antenna.In pad one side of antenna two metal round dots being arranged is encapsulation witness markers 32.
Change the different meander line number of closed antenna loop area and lateral length and increase the terminal width of meander line and realized the impedance of antenna and the impedance matching of chip together.Radial meander line structure has realized the short side direction of the polarised direction of this antenna at this rectangle antenna simultaneously.The antenna pattern of this antenna is in being parallel to the antenna vertical plane on length of antenna limit.
Fig. 4 is a kind of deformation structure schematic diagram of the utility model label antenna.The antenna end direction of Fig. 4 and the distributing point 40 of antenna be respectively in the both sides on length of antenna limit, and shown in Figure 3 in a side.
Single grade of this novel ultrahigh frequency electronic tag is used, and can realize accurate logistics management and false proof dual-use function.Article are metals or have metal and liquid, at for example wine, wait under the environment, realize practical and inexpensive label design.Basis is novel utilizes the design of label antenna to realize that single grade top is a metal, and the bottom is that the environment of liquid uses.Inductive loop of this novel use impedance matching and the short side direction that is polarized in antenna that the meander line form has realized antenna, and directional diagram makes electromagnetic field can avoid the metal at single grade top and the liquid of bottom in omnidirectional's form on the plane at the long side direction place of antenna.
The above is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model.Have in the technical field under any and know the knowledgeable usually, in not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations, therefore protection range of the present utility model should be looked claims institute confining spectrum and is as the criterion.
Claims (8)
1. single grade ultrahigh frequency electronic tag antenna, this antenna integral body is rectangle, and comprises the meander line (44) that the becket (43) that is connected with electronic label chip and starting point are connected with this becket; A minor face of this becket disconnects two ports (40) that form antenna; It is characterized in that this described meander line (44) originates in the end of described becket, to the whole short side direction extension of antenna, after each bending, the meander line length of length of antenna's edge direction increases.
2. electronic label antenna according to claim 1 is characterized in that end (45) live width of described meander line is widened.
3. electronic label antenna according to claim 1 and 2 is characterized in that four corners (46) of described meander line end are curved.
4. electronic label antenna according to claim 1 and 2 is characterized in that described becket (43) is rectangle, and its long limit is parallel with the whole long side direction of this antenna, and the minor face of described becket (43) is parallel with the whole short side direction of this antenna.
5. electronic label antenna according to claim 1 is characterized in that two ports (40) of described antenna and electronic label chip connect and compose a closed circuit.
6. electronic label antenna according to claim 1 is characterized in that the support pad (41) of two metal dots as electronic label chip arranged respectively in the both sides of antenna port.
7. electronic label antenna according to claim 1 is characterized in that the short side direction of the polarised direction of this antenna at this rectangle antenna.
8. electronic label antenna according to claim 1, the antenna pattern that it is characterized in that this antenna is in being parallel to the antenna vertical plane of length of antenna's edge direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202114196U CN201549584U (en) | 2009-10-28 | 2009-10-28 | Single-grade ultrahigh-frequency electronic label antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202114196U CN201549584U (en) | 2009-10-28 | 2009-10-28 | Single-grade ultrahigh-frequency electronic label antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201549584U true CN201549584U (en) | 2010-08-11 |
Family
ID=42604764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202114196U Expired - Lifetime CN201549584U (en) | 2009-10-28 | 2009-10-28 | Single-grade ultrahigh-frequency electronic label antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201549584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610900A (en) * | 2011-01-18 | 2012-07-25 | 太瀚科技股份有限公司 | Multi-antenna circuit layout |
| CN103640782A (en) * | 2013-12-04 | 2014-03-19 | 高洪强 | Metal UHF-RFID bottle cap |
-
2009
- 2009-10-28 CN CN2009202114196U patent/CN201549584U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102610900A (en) * | 2011-01-18 | 2012-07-25 | 太瀚科技股份有限公司 | Multi-antenna circuit layout |
| CN103640782A (en) * | 2013-12-04 | 2014-03-19 | 高洪强 | Metal UHF-RFID bottle cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
|
| CX01 | Expiry of patent term |