CN109086855B - Tag antenna for solving problem of interference caused by dense placement - Google Patents
Tag antenna for solving problem of interference caused by dense placement Download PDFInfo
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- CN109086855B CN109086855B CN201810832657.2A CN201810832657A CN109086855B CN 109086855 B CN109086855 B CN 109086855B CN 201810832657 A CN201810832657 A CN 201810832657A CN 109086855 B CN109086855 B CN 109086855B
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- hollow
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- tail end
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07771—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Details Of Aerials (AREA)
Abstract
The invention relates to a tag antenna for solving the problem of interference in dense placement, which comprises: the antenna body becomes the rectangle form, and first fretwork portion includes: the antenna comprises a first sub hollow-out part, a second sub hollow-out part and a third sub hollow-out part, wherein the first sub hollow-out part and the third sub hollow-out part are all parallel to the wide edge of the antenna body, the second sub hollow-out part is parallel to the long edge of the antenna body, the tail end of the first sub hollow-out part is connected with one tail end of the second sub hollow-out part, and the tail end of the third sub hollow-out part is connected with the other tail end of the second sub hollow-out part; the second hollow portion includes: the antenna comprises a fourth sub hollow-out part, a fifth sub hollow-out part and a sixth sub hollow-out part, wherein the fourth sub hollow-out part and the sixth sub hollow-out part are all parallel to the wide edge of the antenna body, the fifth sub hollow-out part is parallel to the long edge of the antenna body, the tail end of the fourth sub hollow-out part is connected with one tail end of the fifth sub hollow-out part, and the tail end of the sixth sub hollow-out part is connected with the other tail end of the fifth sub hollow-out part.
Description
Technical Field
The invention relates to an antenna technology, in particular to a tag antenna for solving the problem of intensive visit interference.
Background
With the development of the internet of things technology, the application field of the 900MHz RFID technology is more and more, and particularly, the demand under the conditions of dense placement and liquid article management is urgent. The liquid articles comprise bagged liquid, plastic bottled liquid, glass bottled liquid, metal canned liquid and the like. The liquid articles need to be registered, managed and destroyed by using RFID when being produced, stored, sold and used.
The antenna material of the tag is aluminum foil, and the processing is completed through an etching process. When the antenna is a space device from a circuit to an electric field, metal is equivalent to an electric wall in the electric field space and can interfere the propagation of electromagnetic waves. When the antennas are densely arranged, the antennas are used as metal bodies, which causes interference to adjacent antennas. In addition, the liquid is also a good conductor, and has a great influence on the radiation environment of the antenna.
Disclosure of Invention
The present invention is directed to a tag antenna for solving the problem of interference caused by dense placement, and the tag antenna is used to solve the above problems in the prior art.
The invention relates to a tag antenna for solving the problem of interference in dense placement, which comprises: the antenna comprises an antenna body, a first hollow-out part, a second hollow-out part, a third hollow-out part and an antenna chip; the antenna body becomes the rectangle form, and first fretwork portion includes: the antenna comprises a first sub hollow-out part, a second sub hollow-out part and a third sub hollow-out part, wherein the first sub hollow-out part and the third sub hollow-out part are all parallel to the wide edge of the antenna body, the second sub hollow-out part is parallel to the long edge of the antenna body, the tail end of the first sub hollow-out part is connected with one tail end of the second sub hollow-out part, and the tail end of the third sub hollow-out part is connected with the other tail end of the second sub hollow-out part; the second hollow portion includes: the antenna comprises a fourth sub hollow-out part, a fifth sub hollow-out part and a sixth sub hollow-out part, wherein the fourth sub hollow-out part and the sixth sub hollow-out part are all parallel to the wide edge of the antenna body, the fifth sub hollow-out part is parallel to the long edge of the antenna body, the tail end of the fourth sub hollow-out part is connected with one tail end of the fifth sub hollow-out part, and the tail end of the sixth sub hollow-out part is connected with the other tail end of the fifth sub hollow-out part; the third hollowed-out part is rectangular and parallel to the long edge of the antenna body, the second hollowed-out part is smaller than the first hollowed-out part, the third hollowed-out part is shorter than the fifth sub hollowed-out part, the second hollowed-out part is arranged at intervals relative to the first hollowed-out part, the third hollowed-out part is arranged at intervals relative to the second hollowed-out part, and the antenna chip is arranged between the third hollowed-out part and the second hollowed-out part.
According to an embodiment of the tag antenna for solving the problem of the densely arranged interference, the material of the antenna body is aluminum foil.
According to an embodiment of the tag antenna for solving the problem of interference caused by intensive placement, the antenna body is formed by etching an aluminum foil to form a sheet shape, and after a laminating process, the outer surface of the aluminum foil is wrapped by a PVC (polyvinyl chloride) substrate and a paper outer surface.
According to an embodiment of the tag antenna for solving the problem of the dense placement interference, the antenna chip is disposed on a connection line between the center of the third hollow portion and the center of the second hollow portion.
According to an embodiment of the tag antenna for solving the problem of the interference caused by the intensive placement, geometric centers of the first hollow-out portion, the second hollow-out portion and the third hollow-out portion are all located on a straight line, and the straight line is parallel to the wide side of the antenna body.
According to an embodiment of the tag antenna for solving the problem of the dense placement interference, the first sub hollow-out portion and the third sub hollow-out portion are symmetrical with respect to the second sub hollow-out portion.
According to an embodiment of the tag antenna for solving the problem of dense placement interference, the fourth sub hollow-out portion and the sixth sub hollow-out portion are symmetrical with respect to the fifth sub hollow-out portion.
According to an embodiment of the tag antenna for solving the problem of dense placement interference, the widths of the first hollow-out portion, the second hollow-out portion and the third hollow-out portion are 0.4mm to 1 mm.
According to an embodiment of the tag antenna for solving the problem of dense placement interference, a distance between the first hollow-out portion, the second hollow-out portion and the third hollow-out portion is 0.4mm to 1 mm.
In conclusion, the tag antenna of the tag antenna for solving the problem of interference caused by intensive placement is applied to 920MHz, and can be adhered to the liquid surface of non-metal shells such as bagged liquid, plastic bottled liquid, glass bottled liquid and the like by adopting an aluminum etching process. The anti-interference characteristic is excellent, the universality is high, and various air interface protocols can be supported.
Drawings
FIG. 1 is a schematic diagram of a tag antenna according to the present invention for solving the problem of interference caused by dense placement;
FIG. 2 is a graph illustrating the matching characteristics of a tag antenna alone;
fig. 3 is a graph showing matching characteristics of a tag antenna in the case of dense and non-metallic case liquid articles.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Fig. 1 is a schematic diagram of a tag antenna for solving the problem of dense placement interference according to the present invention, and as shown in fig. 1, the tag antenna for solving the problem of dense placement interference includes: the antenna comprises an antenna body 1, a first hollow-out part 2, a second hollow-out part 3, a third hollow-out part 4 and an antenna chip 5.
As shown in fig. 1, the antenna body 1 is rectangular, and the first hollow portion 2 includes: the first sub hollow-out portion 21, the second sub hollow-out portion 22 and the third sub hollow-out portion 23, the first sub hollow-out portion 21 and the third sub hollow-out portion 23 are all parallel to the wide side of the antenna body 1, and the second sub hollow-out portion 22 is parallel to the long side of the antenna body 1. The tail end of the first sub hollow-out portion 21 is connected to a tail end of the second sub hollow-out portion 22. The tail end of the third sub hollow-out portion 23 is connected to the other tail end of the second sub hollow-out portion 22. The first sub hollow-out portion 21 and the third sub hollow-out portion 23 are symmetrical with respect to the second sub hollow-out portion 22.
As shown in fig. 1, the second hollow portion 3 includes: the fourth sub hollow portion 31, the fifth sub hollow portion 32 and the sixth sub hollow portion 33, the fourth sub hollow portion 31 and the sixth sub hollow portion 33 are all parallel to the wide side of the antenna body 1, and the fifth sub hollow portion 32 is parallel to the long side of the antenna body 1. The tail end of the fourth sub hollow-out portion 31 is connected to a tail end of the fifth sub hollow-out portion 32. The end of the sixth sub hollow portion 33 is connected to the other end of the fifth sub hollow portion 32. The fourth sub hollow-out portion 31 and the sixth sub hollow-out portion 33 are symmetrical with respect to the fifth sub hollow-out portion 32.
As shown in fig. 1, the third hollow portion 4 is rectangular, and the third hollow portion is parallel to the long side of the antenna body 1. The second hollow portion 3 is smaller than the first hollow portion 2, the third hollow portion 4 is shorter than the fifth sub hollow portion 32, the second hollow portion 3 is arranged at intervals relative to the first hollow portion 2, and the third hollow portion 4 is arranged at intervals relative to the second hollow portion 3. So that the first hollow-out part 2 is sleeved outside the second hollow-out part 3, and the second hollow-out part 3 is sleeved outside the third hollow-out part 4. The antenna chip 5 is disposed between the third hollow portion 4 and the second hollow portion 3.
As shown in fig. 1, the geometric centers of the first hollow portion 2, the second hollow portion 3, and the third hollow portion 4 are all located on a straight line, and the straight line is parallel to the wide side of the antenna body 1.
As shown in fig. 1, the antenna chip 5 is disposed on a connection line between the center of the third hollow portion 4 and the center of the second hollow portion 3. The first hollow-out part 2, the second hollow-out part 3 and the third hollow-out part 4 are arranged at equal intervals.
As shown in fig. 1, the widths of the first hollow portion 2, the second hollow portion 3, and the third hollow portion 4 are 0.4mm to 1 mm. The distance between the first hollow-out part 2, the second hollow-out part 3 and the third hollow-out part 4 is 0.4mm to 1 mm.
As shown in fig. 1, the material of the antenna body 1 is aluminum foil. The antenna body 1 is: the aluminum foil is formed into a sheet shape through etching, and after a laminating process, the outer surface of the aluminum foil is wrapped by the PVC base material and the outer surface of the paper. The label is provided with a back adhesive and can be stuck on the surface of the shell of the nonmetal shell.
As shown in fig. 1, of course, the present invention may be applied to antenna chips 5 of multiple air interface protocols, and for different antenna chips 5, various parameter sizes of the antenna may be adjusted, so as to achieve matching between the antenna and the antenna chip 5, and the performance is qualified.
Fig. 2 shows a matching characteristic curve of a tag antenna alone, and fig. 3 shows a matching characteristic curve of a tag antenna under the conditions of dense and non-metal casing liquid articles, as shown in fig. 2 and fig. 3, the present invention can be realized under the conditions of dense arrangement and liquid environment, and the overall performance is not greatly affected. As can be seen from the marked positions in the graph, the numerical value of the 920MHz frequency point does not change greatly. Therefore, the performance of the tag is not greatly influenced, and the application problem of the RFID in the dense non-metal shell liquid environment is solved.
The invention discloses a tag antenna for solving the problem of interference of dense placement, which is an important invention of an Internet of things radio frequency identification system and is a tag antenna capable of overcoming the influence of dense placement under the special application of liquid article management. The invention adopts controllable cost, and can be suitable for various air interface protocol standards by adapting to a plurality of chips. The invention expands the application range of RFID technical means and overcomes the interference of mutual influence among densely arranged labels.
The invention provides a label for an aluminum etching process, which is adhered to the liquid surface of a non-metal shell. Can be used for intensive placement management. The structure has excellent anti-interference characteristic and high universality, and can support various air interface protocols.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a solve intensive label antenna who puts interference problem which characterized in that includes: the antenna comprises an antenna body, a first hollow-out part, a second hollow-out part, a third hollow-out part and an antenna chip;
the antenna body becomes the rectangle form, and first fretwork portion includes: the antenna comprises a first sub hollow-out part, a second sub hollow-out part and a third sub hollow-out part, wherein the first sub hollow-out part and the third sub hollow-out part are all parallel to the wide edge of the antenna body, the second sub hollow-out part is parallel to the long edge of the antenna body, the tail end of the first sub hollow-out part is connected with one tail end of the second sub hollow-out part, and the tail end of the third sub hollow-out part is connected with the other tail end of the second sub hollow-out part;
the second hollow portion includes: the antenna comprises a fourth sub hollow-out part, a fifth sub hollow-out part and a sixth sub hollow-out part, wherein the fourth sub hollow-out part and the sixth sub hollow-out part are all parallel to the wide edge of the antenna body, the fifth sub hollow-out part is parallel to the long edge of the antenna body, the tail end of the fourth sub hollow-out part is connected with one tail end of the fifth sub hollow-out part, and the tail end of the sixth sub hollow-out part is connected with the other tail end of the fifth sub hollow-out part;
the third hollowed-out part is rectangular and parallel to the long edge of the antenna body, the second hollowed-out part is smaller than the first hollowed-out part, the third hollowed-out part is shorter than the fifth sub hollowed-out part, the second hollowed-out part is arranged at intervals relative to the first hollowed-out part, the third hollowed-out part is arranged at intervals relative to the second hollowed-out part, and the antenna chip is arranged between the third hollowed-out part and the second hollowed-out part;
the antenna chip is arranged on a connecting line of the center of the third hollow-out part and the center of the second hollow-out part.
2. The tag antenna for solving the problem of densely-arranged interference as claimed in claim 1, wherein the material of the antenna body is aluminum foil.
3. The tag antenna for solving the problem of interference caused by dense placement as claimed in claim 2, wherein the antenna body is formed by etching an aluminum foil into a sheet shape, and after a laminating process, the outer surface of the aluminum foil is wrapped by a PVC substrate and a paper outer surface.
4. The tag antenna for solving the problem of dense placement interference as claimed in claim 1, wherein the geometric centers of the first hollow-out portion, the second hollow-out portion and the third hollow-out portion are all located on a straight line, and the straight line is parallel to the wide side of the antenna body.
5. The tag antenna for solving the problem of densely-arranged interference as claimed in claim 1, wherein the first sub-hollow portion and the third sub-hollow portion are symmetrical with respect to the second sub-hollow portion.
6. The tag antenna for solving the problem of densely-arranged interference as claimed in claim 1, wherein the fourth sub-hollow portion and the sixth sub-hollow portion are symmetrical with respect to the fifth sub-hollow portion.
7. The tag antenna for solving the problem of densely-arranged interference as claimed in claim 1, wherein the widths of the first hollow-out portion, the second hollow-out portion and the third hollow-out portion are 0.4mm to 1 mm.
8. The tag antenna for solving the problem of densely-arranged interference as claimed in claim 1, wherein the first hollow-out portion, the second hollow-out portion and the third hollow-out portion have a distance of 0.4mm to 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832657.2A CN109086855B (en) | 2018-07-26 | 2018-07-26 | Tag antenna for solving problem of interference caused by dense placement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832657.2A CN109086855B (en) | 2018-07-26 | 2018-07-26 | Tag antenna for solving problem of interference caused by dense placement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109086855A CN109086855A (en) | 2018-12-25 |
| CN109086855B true CN109086855B (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832657.2A Active CN109086855B (en) | 2018-07-26 | 2018-07-26 | Tag antenna for solving problem of interference caused by dense placement |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280686A (en) * | 2011-04-20 | 2011-12-14 | 佛山市粤海信通讯有限公司 | RFID (radio frequency identification) slot antenna |
| CN202127092U (en) * | 2011-05-31 | 2012-01-25 | 深圳光启高等理工研究院 | Antenna and MIMO (multiple-input multiple-output) antenna with same |
| CN203166076U (en) * | 2013-02-07 | 2013-08-28 | 上海中卡智能卡有限公司 | Anti-interference tag antenna |
| CN107871921A (en) * | 2016-09-27 | 2018-04-03 | 北京计算机技术及应用研究所 | RFID reader external antenna in sealing metal cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI624995B (en) * | 2016-09-09 | 2018-05-21 | Read Tag Tech Corp | Long-range radio frequency anti-metal identification tag |
-
2018
- 2018-07-26 CN CN201810832657.2A patent/CN109086855B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280686A (en) * | 2011-04-20 | 2011-12-14 | 佛山市粤海信通讯有限公司 | RFID (radio frequency identification) slot antenna |
| CN202127092U (en) * | 2011-05-31 | 2012-01-25 | 深圳光启高等理工研究院 | Antenna and MIMO (multiple-input multiple-output) antenna with same |
| CN203166076U (en) * | 2013-02-07 | 2013-08-28 | 上海中卡智能卡有限公司 | Anti-interference tag antenna |
| CN107871921A (en) * | 2016-09-27 | 2018-04-03 | 北京计算机技术及应用研究所 | RFID reader external antenna in sealing metal cabinet |
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| Publication number | Publication date |
|---|---|
| CN109086855A (en) | 2018-12-25 |
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