CN203166076U - Anti-interference tag antenna - Google Patents
Anti-interference tag antenna Download PDFInfo
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- CN203166076U CN203166076U CN 201320071102 CN201320071102U CN203166076U CN 203166076 U CN203166076 U CN 203166076U CN 201320071102 CN201320071102 CN 201320071102 CN 201320071102 U CN201320071102 U CN 201320071102U CN 203166076 U CN203166076 U CN 203166076U
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Abstract
The purpose of the utility model is to disclose an anti-interference tag antenna, which comprises an antenna body and a chip arranged in the antenna body, wherein the antenna body is formed by interconnecting a plurality of matching structural units shaped like Chinese character 'hui', and auxiliary wings on two sides of the antenna body are provided with a plurality of Z-shaped or E-shaped structural units. Compared with the prior art, with the adoption of the matching structural units shaped like Chinese character 'hui', the anti-interference tag antenna effectively reduces the real part of antenna impedance and increases the imaginary part, weakens the interference of electromagnetic waves of adjacent tags by utilizing the current circulation effect, has good anti-interference function, adds the plurality of Z-shaped or E-shaped structural units, increases the antenna gain in a targeted manner, realizes the high gain performance, and achieves the purpose of the anti-interference tag antenna.
Description
Technical field
The utility model relates to a kind of label antenna, particularly a kind of anti-interference label antenna.
Background technology
Popular in the market some archives labels, label for clothing and case are marked, and all there is the problem of a part in its label, utilizes the UHF test system and test to cross this part tag sensitivity performance, following several problems occur:
1, bandwidth problem: because the UHF RFID label frequency range difference of international label, frequency range all exists bigger difference in Chinese Mainland, Taiwan and Hong Kong, North America, Europe and Japan and Korea S, this just requires the bandwidth of label antenna will contain the 860M-960M frequency range, the sensitivity of test UHF label concentrates on certain zone mostly and uses frequency range, has only the 30-50M available bandwidth;
2, read apart from problem: i.e. gain problem, the gain of most of labels is also namely read apart within 10m below 2.0dB on the market, and distance is far away inadequately;
3, anti-collision problem: owing to consider the choice of gain and anti-collision, should consider that on size design label can read enough far, consider all identification in the application scenario of many labels again, archives label great majority existing on the market are king-size, cause certain burden at the label cost;
Therefore, need a kind of anti-interference label antenna especially, to solve the above-mentioned existing problem that exists.
The utility model content
The purpose of this utility model is to provide a kind of anti-interference label antenna, at the deficiencies in the prior art, has characteristics such as ultra wide bandwidth, high-gain and anti-collision.
The technical problem that the utility model solves can realize by the following technical solutions:
A kind of anti-interference label antenna, it is characterized in that, it comprises an antenna body and is arranged on chip in the antenna body, and described antenna body is connected to each other by a plurality of Back Word matching structures unit and forms, and the both sides aileron of described antenna body is provided with a plurality of Z words or E word construction unit.
In an embodiment of the present utility model, described antenna body is the aluminium etching antenna.
In an embodiment of the present utility model, described antenna body is connected to each other by 3 Back Word matching structure unit and constitutes.
In an embodiment of the present utility model, the both sides aileron of described antenna body is provided with a Z word construction unit and two E word construction units.
Anti-interference label antenna of the present utility model, compared with prior art, Back Word matching structure unit has effectively reduced the real part of antenna impedance and has increased imaginary part, and utilizing the electromagnetic invasion of effect weakening adjacent label of electric current circulation, play good anti-interference effect, increase a plurality of Z words or E word construction unit, the gain that increases antenna targetedly, realize the high-gain performance, realize the purpose of this utility model.
Characteristics of the present utility model can be consulted the detailed description of the graphic and following better execution mode of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is the structural representation of Back Word matching structure of the present utility model unit;
Fig. 2 is the structural representation of many Z word of the present utility model and E word construction unit;
Fig. 3 is the structural representation of anti-interference label antenna of the present utility model;
Fig. 4 is the schematic diagram of anti-interference label antenna standing wave performance of the present utility model;
Fig. 5 is the structural representation of of the present utility model pair of label antenna;
Fig. 6 is the schematic diagram of of the present utility model pair of label antenna standing wave performance;
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 3, anti-interference label antenna of the present utility model, it comprises an antenna body 100 and is arranged on chip (not shown) in the antenna body 100, described antenna body 100 is connected to each other by a plurality of Back Word matching structures unit 110 and forms, and the both sides aileron of described antenna body 100 is provided with a plurality of Z word construction units 120 or E word construction unit 130.
In the utility model, described antenna body 100 is the aluminium etching antenna, overlays on the PET film, is mainly used in many labels such as clothes, archives and books and reads in the environment simultaneously.
In the utility model, described antenna body 100 is connected to each other by 3 Back Word matching structure unit 110 and constitutes.
In the utility model, the both sides aileron of described antenna body 100 is provided with a Z word construction unit 120 and two E word construction units 130.
As shown in Figure 1, Back Word matching structure unit 110 plays the matching effect of tuning wafer and antenna in label antenna, in antenna structure, many Back Words structure, effectively reduce the real part of antenna impedance and increased imaginary part, and utilizing the electromagnetic invasion of effect weakening adjacent label of electric current circulation, play good anti-interference effect.
As shown in Figure 2, the characteristics of recycling current direction increase a plurality of Z word construction units 120 or E word construction unit 130, and the gain that increases antenna targetedly realizes the high-gain performance.
Anti-interference label antenna of the present utility model is on the basis in conjunction with the H3 chip, can be at the standing wave of 840MHz-960MHz all below 1.3, gain is more than 2.2 at 920MHz, and many labels close on the performance that emulation does not influence single label, many label test read rates are completely to read at 100,200 about 99%.
As shown in Figure 4, it is more than 2.2 that the simulation result of anti-interference label antenna list label of the present utility model can gain at 920MHz, standing wave at 840MHz-960MHz all below 1.3, chip ALIEN H3, its unique Back Word matching structure unit 110 has made things convenient for the adjusting of resonance point position, and a plurality of Back Word matching structures unit 110 effectively reduces the electromagnetic interference between label and the label, the real imaginary impedance that can be single label is stabilized in the fixed value scope, big fluctuation can not occur.Z word construction unit 120 or E word construction unit 130, when having improved single loop and causing that magnetic flux reduces, also in the Enhanced Radiation Reduced Blast structure, gain increases to some extent.
The overall size of anti-interference label antenna of the present utility model is 95.24*11.1, and volume is little, is easy to processing.
The actual test result of anti-interference label antenna of the present utility model is: under the readout power of 1W, the distance that reads more than the 10m can be arranged, and instantaneous the reading of 100 each and every one label energy, 200 label read rates are about 99%.
As shown in Figure 5 and Figure 6, be two labels emulation simultaneously of anti-interference label antenna of the present utility model, spacing 5mm.Standing wave is below 1.2, and more single label that gains has the improvement of 0.02dB.The impedance of real imaginary part keeps not showing, and has shown good anti-interference.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. anti-interference label antenna, it is characterized in that, it comprises an antenna body and is arranged on chip in the antenna body, and described antenna body is connected to each other by a plurality of Back Word matching structures unit and forms, and the both sides aileron of described antenna body is provided with a plurality of Z words or E word construction unit.
2. anti-interference label antenna as claimed in claim 1 is characterized in that, described antenna body is the aluminium etching antenna.
3. anti-interference label antenna as claimed in claim 1 is characterized in that, described antenna body is connected to each other by 3 Back Word matching structure unit and constitutes.
4. anti-interference label antenna as claimed in claim 1 is characterized in that, the both sides aileron of described antenna body is provided with a Z word construction unit and two E word construction units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071102 CN203166076U (en) | 2013-02-07 | 2013-02-07 | Anti-interference tag antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320071102 CN203166076U (en) | 2013-02-07 | 2013-02-07 | Anti-interference tag antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203166076U true CN203166076U (en) | 2013-08-28 |
Family
ID=49027238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320071102 Expired - Fee Related CN203166076U (en) | 2013-02-07 | 2013-02-07 | Anti-interference tag antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203166076U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481843A (en) * | 2018-03-22 | 2018-09-04 | 上海中卡智能卡有限公司 | A kind of interlayer tempered glass |
| CN109086855A (en) * | 2018-07-26 | 2018-12-25 | 北京计算机技术及应用研究所 | The label antenna of interference problem is intensively put in a kind of solution |
-
2013
- 2013-02-07 CN CN 201320071102 patent/CN203166076U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108481843A (en) * | 2018-03-22 | 2018-09-04 | 上海中卡智能卡有限公司 | A kind of interlayer tempered glass |
| CN108481843B (en) * | 2018-03-22 | 2020-12-15 | 上海中卡智能卡有限公司 | Laminated toughened glass |
| CN109086855A (en) * | 2018-07-26 | 2018-12-25 | 北京计算机技术及应用研究所 | The label antenna of interference problem is intensively put in a kind of solution |
| CN109086855B (en) * | 2018-07-26 | 2021-09-17 | 北京计算机技术及应用研究所 | Tag antenna for solving problem of interference caused by dense placement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20170207 |