CN102254213B - Double-frequency radio-frequency identification tag - Google Patents
Double-frequency radio-frequency identification tag Download PDFInfo
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- CN102254213B CN102254213B CN 201110196624 CN201110196624A CN102254213B CN 102254213 B CN102254213 B CN 102254213B CN 201110196624 CN201110196624 CN 201110196624 CN 201110196624 A CN201110196624 A CN 201110196624A CN 102254213 B CN102254213 B CN 102254213B
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Abstract
The invention relates to a double-frequency radio-frequency identification tag which comprises an antenna coil and a radio-frequency identification tag. The identification tag provided by the invention is characterized in that the antenna coil comprises a first radiation body, a second radiation body and a third radiation body; the first radiation body is located at one side of a base plate; the second radiation body and the third radiation body are located at the other side of the base plate; the parts, at the two sides of the base plate, of the first and second radiation bodies correspond to each other, and the first and second radiation bodies are communicated through a first gap bridge and a second gap bridge to form a first frequency antenna; and the third radiation body is formed into a second frequency antenna. The identification tag can be used for greatly lowering the production cost of the multi-frequency tag and effectively reducing the mutual interference of two frequency tags.
Description
Technical field
The present invention relates to REID, particularly a kind of RFID tag of double frequency.
Background technology
REID is a kind of non-contacting automatic identification technology, and it is automatically identified destination object and obtain related data by radiofrequency signal, and identification work need not manual intervention, can work in various rugged surroundings.The RFID technology can be identified high-speed moving object and can identify simultaneously a plurality of labels, and is swift and convenient to operate.The most basic rfid system is comprised of three parts: label, reader and antenna, wherein antenna transmits radiofrequency signal between label and reader.Antenna as the equipment of a kind of reception and emitting electromagnetic wave, is a key component in wireless telecommunication system, and it is the interface of free space and transmission line.
Along with the development of REID, a kind of demand that is applicable to the RFID tag of double frequency becomes more and more urgent.The label antenna of two kinds of frequencies is made on same base material, and for example the PET base material, face the problem that two kinds of antennas interfere with each other, and how to avoid between two kinds of antennas forming effective capacitance and the performance that affects the RFID label is to need the problem that solves.
Summary of the invention
The technical problem to be solved in the present invention is to be arranged on same base material the label antenna of two kinds of frequencies is glitch-free.In order to solve the problems of the technologies described above, the invention provides a kind of double-frequency radio-frequency identification tag,
Comprise aerial coil and radio-frequency (RF) identification chip, it is characterized in that, described aerial coil comprises the first radiator, the second radiator and the 3rd radiator, and described the first radiator is positioned at a side of described substrate, described the second radiator and described the 3rd radiator are positioned at the opposite side of described substrate
Described the first radiator and described the second radiator are corresponding in the position of substrate both sides, pass a bridge and the second gap bridge UNICOM by first, and formation first frequency antenna;
Described the 3rd radiator forms the second frequency antenna.
Further, described the first radiator comprises the first antenna part and the first metal section of one circle of helically coiling at least, it is inner that described the first metal section is positioned at described the first antenna part, each circle of described the first antenna part is recessed to the circle internal direction at the head end place near the first antenna part, the point-like section that described the first metal section comprises untight ring part and is positioned at ring part inside, the tail end of described the first antenna part is connected with described ring part;
Described the second radiator comprises the second antenna part and the second metal section of one circle of helically coiling at least, described the second metal section is class annular U-shaped, the tail end of described the second antenna part is connected with described the second metal section, and described the second radiator is inner at described the 3rd radiator;
described the 3rd radiator comprises third antenna section, the 4th antenna part, the first lead segment and the second lead segment, described third antenna section is the hollow ring C shape that the outside mid point has opening, described the 4th antenna part is the hollow ring arc that the outside mid point has opening, the opening part of described third antenna section is corresponding with the opening part of described the 4th antenna part, described the first lead segment connects a side opening of described third antenna section and described the 4th antenna part and stretches out, described the second lead segment connects the opposite side opening of described third antenna section and described the 4th antenna part and stretches out.
Preferably, the described first two ends of passing a bridge lay respectively at the head end of described the first antenna part and the head end of the second antenna part, and the described second two ends of passing a bridge lay respectively at point-like section and the second metal section of the first metal section.
Preferably, described radio-frequency (RF) identification chip is respectively first frequency radio-frequency (RF) identification chip and second frequency radio-frequency (RF) identification chip, first frequency radio-frequency (RF) identification chip solder joint is positioned on described substrate the first radiator place one side, and second frequency radio-frequency (RF) identification chip solder joint is positioned on described substrate the 3rd radiator place one side.
Preferably, described first frequency radio-frequency (RF) identification chip solder joint is positioned at the first metal section, and described second frequency radio-frequency (RF) identification chip solder joint is positioned at the first lead segment and the second lead segment place that stretches out.
Further, described the first radiator comprises the first antenna part and the first metal section of one circle of helically coiling at least, it is inner that described the first metal section is positioned at described the first antenna part, and described the first metal section is class annular U-shaped, and the tail end of described the first antenna part is connected with described the first metal section;
described the second radiator comprises the second antenna part of helically coiling one circle at least, the second metal section and the 3rd lead segment, described the second metal section is class annular U-shaped, the tail end of described the second antenna part is connected with described the second metal section, it is inner that described third antenna section and described the second metal section are positioned at described the 3rd radiator, described the 3rd lead segment is the coiling direction semicircular arc identical with described the second antenna part, be positioned at described the 3rd radiator outside, the head end of described the second antenna part is connected with described the 3rd lead segment tail end and half part of described the 3rd radiator is surrounded,
described the 3rd radiator comprises third antenna section, the 4th antenna part, the first lead segment and the second lead segment, described third antenna section is the hollow ring C shape that the outside mid point has opening, described the 4th antenna part is the hollow ring arc that the outside mid point has opening, the opening part of described third antenna section is corresponding with the opening part of described the 4th antenna part, described the first lead segment connects a side opening of described third antenna section and described the 4th antenna part and stretches out, described the second lead segment connects the opposite side opening of described third antenna section and described the 4th antenna part and stretches out.
Preferably, the described first two ends of passing a bridge lay respectively near the head end of the head end of described the first antenna part and the 3rd lead segment, and the described second two ends of passing a bridge lay respectively in the class annular U-shaped of the first metal section vacancy and the second metal section.
Preferably, described radio-frequency (RF) identification chip is dual-band chip, in described dual-band chip, the solder joint of first frequency is positioned at the head end of described the 3rd lead segment, and the solder joint of the second frequency in described dual-band chip is positioned at described the first lead segment and described the second lead segment place that stretches out.
Preferably, described radio-frequency (RF) identification chip is respectively first frequency radio-frequency (RF) identification chip and second frequency radio-frequency (RF) identification chip, the solder joint of described first frequency radio-frequency (RF) identification chip is positioned near described the first metal section, and the solder joint of described second frequency radio-frequency (RF) identification chip is positioned at described the first lead segment and described the second lead segment place that stretches out.
Further, described first frequency is low frequency or high frequency, and described second frequency is ultrahigh frequency.
The advantage of a kind of double-frequency radio-frequency identification tag of the present invention is greatly to reduce the production cost of multifrequency label, effectively reduces the phase mutual interference of two kinds of frequency tags.
Description of drawings
Fig. 1 is the structural representation of substrate one side in first embodiment of double-frequency radio-frequency identification tag of the present invention;
Fig. 2 is the structural representation of substrate opposite side in first embodiment of double-frequency radio-frequency identification tag of the present invention;
Fig. 3 is the structural representation of substrate one side in second embodiment of double-frequency radio-frequency identification tag of the present invention;
Fig. 4 is the structural representation of substrate opposite side in second embodiment of double-frequency radio-frequency identification tag of the present invention.
Embodiment
Describe specific embodiments of the invention in detail below in conjunction with accompanying drawing.
Shown in seeing figures.1.and.2, Fig. 1 and Fig. 2 are respectively double-frequency radio-frequency identification tag of the present invention relative two faces on substrate, wherein this label comprises two radio-frequency (RF) identification chip (RFIC) and corresponding antenna, two RFIC can be high frequency chip and ultrahigh frequency chip, can be also the chips of other frequencies.Figure 1 shows that the radiator 11 of antenna, radiator 11 comprises antenna part 21 and the first metal section of one circle of helically coiling at least, the first metal section is positioned at antenna part 21 inside, each circle of antenna part 21 is recessed to inner (center of circle) direction of circle at head end 3 places near antenna part, the point-like section 32 that the first metal section comprises untight ring part 31 and is positioned at ring part 31 inside, the tail end of antenna part 21 is connected with ring part 31.
Shown in Figure 2, radiator 12 comprises antenna part 22 and the second metal section 33 of one circle of helically coiling at least, and described the second metal section is class annular U-shaped, and the tail end of antenna part 22 is connected with the second metal section 33, and radiator 12 is in radiator 13 inside.Radiator 13 comprises antenna part 23, antenna part 24, lead segment 25 and lead segment 26, antenna part 23 is hollow ring C shape, there is opening upper some position in the outside, antenna part 24 is the hollow ring arc, midpoint has opening in the outside, the opening part of antenna part 23 is corresponding with the opening part of antenna part 24, and lead segment 25 is connect a side opening of antenna part 23 and antenna part 24 and stretch out, and the opposite side opening that lead segment 26 connects antenna parts 23 and antenna part 24 also stretches out.
Described substrate can be the PET base material, and the aerial coil material can be aluminium or copper, and the first metal section is the metal flat body with the aerial coil homogeneity.
The solder joint of the radio-frequency (RF) identification chip of two kinds of frequencies is respectively on two faces of label, its position can be arbitrarily, specifically be chosen as first frequency radio-frequency (RF) identification chip solder joint in the present embodiment and be positioned at the first metal section, second frequency radio-frequency (RF) identification chip solder joint is positioned at lead segment 25 and lead segment 26 and stretches out in the place.First frequency can be specially high frequency, and second frequency can be specially ultrahigh frequency.Second frequency radio-frequency (RF) identification chip solder joint is tried one's best away from the antenna part 22 of radiator 12, to avoid faradic impact.
The diameter that radiator 13C shaped part is divided is greater than the diameter of radiator 12, so that radiator 12 can be placed in radiator 13 fully and keep certain distance, can control like this two radiatoies and form electric capacity.First frequency and second frequency can be selected two frequencies widely in low frequency, intermediate frequency, high frequency, can realize the present invention too.
With reference to shown in Figure 3, radiator 14 comprises antenna part 27 and the metal section 34 of helically coiling one circle at least, and metal section 34 is positioned at antenna part 27 inside, and metal section 34 be the annular U-shaped of class, and the tail end of antenna part 27 is connected with metal section 34.
With reference to shown in Figure 4, radiator 15 comprises antenna part 28, metal section 35 and the lead segment 41 of helically coiling one circle at least, described metal section 35 is class annular U-shaped, the tail end of antenna part 28 is connected with metal section 35, antenna part 28 and metal section 35 are positioned at radiator 16 inside, lead segment 41 is the coiling direction semicircular arc identical with described the second antenna part, is positioned at radiator 16 outsides, and the head end of antenna part 15 is connected with lead segment 41 tail ends and with the partly partly encirclement of radiator 16.
Described substrate can be the PET base material, and the aerial coil material can be aluminium or copper, and the first metal section is the metal flat body with the aerial coil homogeneity.
In Fig. 3 in the gap bridge point 1 at the head end place of antenna part 14 and Fig. 4 near the gap bridge point the head end of lead segment 41 1 UNICOM form first and pass a bridge, pass a bridge gap bridge point 1 UNICOM formation second gap bridge of metal in point 1 and Fig. 4 section 35 of vacancy in the class annular U-shaped of metal section 34 in Fig. 3.The first gap bridge and second is passed a bridge and is made radiator 14 and radiator 15 form the antenna of first frequencies, can be high frequency antenna.Radiator 16 forms the antenna of the 3rd frequency, can be ultra-high frequency antenna.Passing a bridge in the present embodiment that the position of point selects is only a kind of embodiment, and the position of the point of passing a bridge can be different and different according to the frequency of operation of label.
Radio-frequency (RF) identification chip in the present embodiment can be dual-band chip, in dual-band chip, the solder joint of the solder joint of first frequency and second frequency all is arranged in Fig. 4 radiator 15 and radiator 16 planes, place, its position can be arbitrarily, the solder joint that specifically is chosen as first frequency in the present embodiment can be positioned at the head end of lead segment 41, and the solder joint of second frequency can be positioned at lead segment 44 and described lead segment 45 place that stretches out.
When the radio-frequency (RF) identification chip in the present embodiment is multi-chip, namely be respectively first frequency radio-frequency (RF) identification chip and second frequency radio-frequency (RF) identification chip, its position can be arbitrarily, the solder joint that specifically is chosen as described first frequency radio-frequency (RF) identification chip in the present embodiment is positioned near metal section 34, and the solder joint of second frequency radio-frequency (RF) identification chip is positioned at lead segment 44 and lead segment 45 place that stretches out.In the present embodiment, first frequency can be high frequency, and second frequency can be ultrahigh frequency.Wherein, first frequency also can be low frequency, only needs this moment to adjust the electrical length of antenna so that resonance frequency satisfies the frequency of operation of low frequency.
Described in this instructions is preferred embodiment of the present invention, and above embodiment is only in order to illustrate technical scheme of the present invention but not limitation of the present invention.All those skilled in the art all should be within the scope of the present invention under this invention's idea by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. double-frequency radio-frequency identification tag, comprise aerial coil and radio-frequency (RF) identification chip, it is characterized in that, described aerial coil comprises the first radiator, the second radiator and the 3rd radiator, described the first radiator is positioned at a side of substrate, and described the second radiator and described the 3rd radiator are positioned at the opposite side of described substrate; Described the first radiator and described the second radiator are corresponding in the position of substrate both sides, pass a bridge and the second gap bridge UNICOM by first, and formation first frequency antenna; Described the 3rd radiator forms the second frequency antenna; Wherein,
Described the first radiator comprises the first antenna part and the first metal section of one circle of helically coiling at least, it is inner that described the first metal section is positioned at described the first antenna part, each circle of described the first antenna part is recessed to the circle internal direction at the head end place near the first antenna part, the point-like section that described the first metal section comprises untight ring part and is positioned at ring part inside, the tail end of described the first antenna part is connected with described ring part;
Described the second radiator comprises the second antenna part and the second metal section of one circle of helically coiling at least, described the second metal section is class annular U-shaped, the tail end of described the second antenna part is connected with described the second metal section, and described the second radiator is inner at described the 3rd radiator;
described the 3rd radiator comprises third antenna section, the 4th antenna part, the first lead segment and the second lead segment, described third antenna section is the hollow ring C shape that the outside mid point has opening, described the 4th antenna part is the hollow ring arc that the outside mid point has opening, the opening part of described third antenna section is corresponding with the opening part of described the 4th antenna part, described the first lead segment connects a side opening of described third antenna section and described the 4th antenna part and stretches out, described the second lead segment connects the opposite side opening of described third antenna section and described the 4th antenna part and stretches out.
2. double-frequency radio-frequency identification tag according to claim 1, it is characterized in that, the described first two ends of passing a bridge lay respectively at the head end of described the first antenna part and the head end of the second antenna part, and the described second two ends of passing a bridge lay respectively at point-like section and the second metal section of the first metal section.
3. double-frequency radio-frequency identification tag according to claim 1, it is characterized in that, described radio-frequency (RF) identification chip is respectively first frequency radio-frequency (RF) identification chip and second frequency radio-frequency (RF) identification chip, first frequency radio-frequency (RF) identification chip solder joint is positioned on described substrate the first radiator place one side, and second frequency radio-frequency (RF) identification chip solder joint is positioned on described substrate the 3rd radiator place one side.
4. double-frequency radio-frequency identification tag according to claim 3, is characterized in that, described first frequency radio-frequency (RF) identification chip solder joint is positioned at the first metal section, and described second frequency radio-frequency (RF) identification chip solder joint is positioned at the first lead segment and the second lead segment place that stretches out.
5. double-frequency radio-frequency identification tag according to claim 1, is characterized in that, described first frequency is low frequency or high frequency, and described second frequency is ultrahigh frequency.
6. double-frequency radio-frequency identification tag, comprise aerial coil and radio-frequency (RF) identification chip, it is characterized in that, described aerial coil comprises the first radiator, the second radiator and the 3rd radiator, described the first radiator is positioned at a side of substrate, and described the second radiator and described the 3rd radiator are positioned at the opposite side of described substrate; Described the first radiator and described the second radiator are corresponding in the position of substrate both sides, pass a bridge and the second gap bridge UNICOM by first, and formation first frequency antenna; Described the 3rd radiator forms the second frequency antenna; Wherein
Described the first radiator comprises the first antenna part and the first metal section of one circle of helically coiling at least, it is inner that described the first metal section is positioned at described the first antenna part, described the first metal section is class annular U-shaped, and the tail end of described the first antenna part is connected with described the first metal section;
described the second radiator comprises the second antenna part of helically coiling one circle at least, the second metal section and the 3rd lead segment, described the second metal section is class annular U-shaped, the tail end of described the second antenna part is connected with described the second metal section, it is inner that described the second antenna part and described the second metal section are positioned at described the 3rd radiator, described the 3rd lead segment is the coiling direction semicircular arc identical with described the second antenna part, be positioned at described the 3rd radiator outside, the head end of described the second antenna part is connected with described the 3rd lead segment tail end and half part of described the 3rd radiator is surrounded,
described the 3rd radiator comprises third antenna section, the 4th antenna part, the first lead segment and the second lead segment, described third antenna section is the hollow ring C shape that the outside mid point has opening, described the 4th antenna part is the hollow ring arc that the outside mid point has opening, the opening part of described third antenna section is corresponding with the opening part of described the 4th antenna part, described the first lead segment connects a side opening of described third antenna section and described the 4th antenna part and stretches out, described the second lead segment connects the opposite side opening of described third antenna section and described the 4th antenna part and stretches out.
7. bifrequency RFID tag according to claim 6, it is characterized in that, the described first two ends of passing a bridge lay respectively near the head end of the head end of described the first antenna part and the 3rd lead segment, and the described second two ends of passing a bridge lay respectively in the class annular U-shaped of the first metal section vacancy and the second metal section.
8. double-frequency radio-frequency identification tag according to claim 6, it is characterized in that, described radio-frequency (RF) identification chip is dual-band chip, in described dual-band chip, the solder joint of first frequency is positioned at the head end of described the 3rd lead segment, and the solder joint of the second frequency in described dual-band chip is positioned at described the first lead segment and described the second lead segment place that stretches out.
9. double-frequency radio-frequency identification tag according to claim 6, it is characterized in that, described radio-frequency (RF) identification chip is respectively first frequency radio-frequency (RF) identification chip and second frequency radio-frequency (RF) identification chip, the solder joint of described first frequency radio-frequency (RF) identification chip is positioned near described the first metal section, and the solder joint of described second frequency radio-frequency (RF) identification chip is positioned at described the first lead segment and described the second lead segment place that stretches out.
10. double-frequency radio-frequency identification tag according to claim 6, is characterized in that, described first frequency is low frequency or high frequency, and described second frequency is ultrahigh frequency.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110196624 CN102254213B (en) | 2011-07-14 | 2011-07-14 | Double-frequency radio-frequency identification tag |
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| CN 201110196624 CN102254213B (en) | 2011-07-14 | 2011-07-14 | Double-frequency radio-frequency identification tag |
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| CN102254213A CN102254213A (en) | 2011-11-23 |
| CN102254213B true CN102254213B (en) | 2013-11-06 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8950683B2 (en) | 2011-11-25 | 2015-02-10 | Zhijia Liu | Production process of tag antenna |
| CN103138045B (en) * | 2011-11-25 | 2016-03-30 | 刘智佳 | Microband paste formula RFID label antenna |
| CN102999777B (en) * | 2012-11-08 | 2016-04-20 | 上海天臣防伪技术股份有限公司 | Radio frequency identification electronic label and preparation method thereof |
| CN103530680B (en) * | 2013-09-16 | 2016-08-17 | 杭州电子科技大学 | A kind of double-frequency radio-frequency identification tag and include the radio-frequency recognition system of this label |
| CN104051840A (en) * | 2014-06-27 | 2014-09-17 | 南通富士通微电子股份有限公司 | Radio frequency identification antenna |
| CN106779026A (en) * | 2016-12-13 | 2017-05-31 | 北京计算机技术及应用研究所 | A kind of double-frequency electronic label for personnel information management |
| CN111370845B (en) * | 2020-04-10 | 2024-02-27 | 江苏科睿坦电子科技有限公司 | Novel double-frequency fragile RFID tag antenna and production method thereof |
| CN113850361A (en) * | 2021-10-14 | 2021-12-28 | 北京京东乾石科技有限公司 | Electronic tag and antenna thereof |
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| CN101075700A (en) * | 2006-05-16 | 2007-11-21 | 智易科技股份有限公司 | Double-frequency reversed F-typed antenna |
| CN201038317Y (en) * | 2007-04-13 | 2008-03-19 | 深圳市信维通信有限公司 | Small sized double frequency antenna |
| CN101355195A (en) * | 2008-08-29 | 2009-01-28 | 浙江大学 | UHF RF dual-frequency-recognizing metal-resistance label antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8242888B2 (en) * | 2008-06-05 | 2012-08-14 | Keystone Technology Solutions, Llc | Systems and methods to determine motion parameters using RFID tags |
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| CN101075700A (en) * | 2006-05-16 | 2007-11-21 | 智易科技股份有限公司 | Double-frequency reversed F-typed antenna |
| CN201038317Y (en) * | 2007-04-13 | 2008-03-19 | 深圳市信维通信有限公司 | Small sized double frequency antenna |
| CN101355195A (en) * | 2008-08-29 | 2009-01-28 | 浙江大学 | UHF RF dual-frequency-recognizing metal-resistance label antenna |
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Address after: 5, building 1, building 127, Lane 200433, Cathay Road, Yangpu District, Shanghai Applicant after: Shanghai Tiancheng Anticounterfeit Technology Co.,Ltd. Co-applicant after: Shanghai Tianchen Radiofrequency Technology Co.,Ltd. Address before: 5, building 1, building 127, Lane 200433, Cathay Road, Yangpu District, Shanghai Applicant before: Tianchen New Technology Co., Ltd., Fudan Univ, Shanghai Co-applicant before: Shanghai Tianchen Radiofrequency Technology Co.,Ltd. |
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Address after: Room 201, building 3, No. 518, shenzhuan Road, Songjiang District, Shanghai, 201612 Patentee after: Shanghai Tianchen micro nano technology Co., Ltd Patentee after: SHANGHAI TECHSUN RFID TECHNOLOGY Co.,Ltd. Address before: 5, building 1, building 127, Lane 200433, Cathay Road, Yangpu District, Shanghai Patentee before: Shanghai Techsun Anti-Counterfeiting Technology Holding Co.,Ltd. Patentee before: SHANGHAI TECHSUN RFID TECHNOLOGY Co.,Ltd. |