CN107578082A - A kind of RFID tag for dividing principle based on work( - Google Patents
A kind of RFID tag for dividing principle based on work( Download PDFInfo
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- CN107578082A CN107578082A CN201710782968.8A CN201710782968A CN107578082A CN 107578082 A CN107578082 A CN 107578082A CN 201710782968 A CN201710782968 A CN 201710782968A CN 107578082 A CN107578082 A CN 107578082A
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- 239000000758 substrate Substances 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The invention discloses a kind of RFID tag for dividing principle based on work(, including medium substrate, the metal ground structure at the medium substrate back side and the positive micro-strip RFID tag structure of medium substrate, metallic micro strip structure is made up of two sections of microstrip transmission lines, two sections of micro-strip short-circuit lines and square endless metal microstrip line, mainly realizes the function on work(division and combination road.The first resonance structure unit, the second resonance structure unit, the 3rd resonance structure unit and the 4th resonance structure unit being printed on medium substrate are respectively provided with an aperture slots, and RFID tag function is realized by the conducting and closure of four aperture slots of control.The present invention can be used in various electronic instruments and communication system, and its advantage is simple and compact for structure, is easy to integrate, can easily be realized by changing work(fraction mesh without frequency shift (FS) phenomenon, multidigit coding.
Description
Technical field
The invention belongs to radio circuit and system regions, is related to a kind of RFID tag.
Background technology
Radio frequency identification is a kind of using radiofrequency signal automatic identification target and to obtain the technology of relevant information.In recent years, with
The development of the technologies such as large scale integrated circuit, network service and information security, the application of REID increasingly by
Pay attention to.Compared with other identifying systems, radio-frequency recognition system has lot of advantages, not only identifies work without manual intervention, and
And various environment can be used, service life length etc., therefore REID is able to develop with all strength in the whole world.
At present, REID is in logistic storage, animal identification, retailing, object tracking, product false proof and medical treatment
Health etc. has a wide range of applications.It covers microwave technology and Principle of Communication, in addition to integrated circuit technique, is
The subject of one multi-crossed disciplines.Prospect and unique technical characterstic, academia and business circles pair are widely applied by these
REID is increasingly paid attention to, and the degree of research is progressively deepened, or even this is compared to e-commerce field relaying mutually by someone
Spring tide again after networking and the big technology spring tide of mobile communication two.
Most common chipless RFID tag is that one section of microstrip transmission line adds several opening resonators or spiral
Shape resonator, such as one section of microstrip transmission line of GA Ji Busen et al. add the helical resonator design of four different lengths
Being used for the print system framework of real-time coding chipless RFID label, (see GA Ji Busen, WA cloth adds to be used in real time
Encode the print system framework of chipless RFID label, patent of invention, 2016.12.21.), the chipless RFID label passes through short
Four, road helical resonator realizes coding, has that cost is low, the advantages of being easy to design simple in construction, but some is humorous for its short circuit
Large effect can be produced to other structures, produce frequency shift (FS) during structure of shaking.
In addition, South China Science ＆ Engineering University Cao build text et al. propose it is a kind of based on SRR structures RFID technique (see Cao Jianwen,
RFID technique research and application South China Science ＆ Engineering University Master's thesis based on SRR structures, 2011.), using near microstrip line
SRR rings are arranged to realize.It is advantageous that realizing four codings in narrow bandwidth, the utilization rate of frequency spectrum is improved,
But there is larger coupling between its bits of coded, frequency shift (FS) is bigger.
The content of the invention
It is an object of the invention to overcome above-mentioned the shortcomings of the prior art, there is provided a kind of radio frequency for dividing principle based on work(
Label is identified, on the premise of ensureing without frequency shift (FS), realizes four codings, it is simple in construction, compact, be easy to integrate.
To achieve these goals, the technical scheme is that：
A kind of RFID tag for dividing principle based on work(, including medium substrate, the metal ground structure at the medium substrate back side
And the positive micro-strip RFID tag structure of medium substrate, the positive micro-strip RFID tag structure of medium substrate include
Metallic micro strip structure, the first resonance structure unit, the second resonance structure unit, the 3rd resonance structure being printed on medium substrate
Unit and the 4th resonance structure unit；First resonance structure unit, the second resonance structure unit, the 3rd resonance structure unit with
And the 4th resonance structure unit and the distance between metallic micro strip structure it is adjustable.
Metallic micro strip structure is made up of two sections of microstrip transmission lines, two sections of micro-strip short-circuit lines and square endless metal microstrip line,
The main function of realizing work(division and combination road.Be printed on the first resonance structure unit on medium substrate, the second resonance structure unit,
3rd resonance structure unit and the 4th resonance structure unit are respectively provided with an aperture slots, pass through four aperture slots of control
Conducting and closure realize RFID tag function.
The present invention covers layer of metal copper using the medium substrate back side, serves as the effect on ground.The front covering of medium substrate
Metallic micro strip structure, electromagnetic wave are inputted by input, and by work(all the way point, then combining again, is exported by output end, produce one
Wider stopband.In work(point per having a quarter-wave open circuit minor matters in all the way, and in open circuit minor matters both sides
Respectively there is a split ring resonator, the coupling between minor matters of being opened a way by split ring resonator and quarter-wave, produce electromagnetically induced
Transparent effect, can form a small passband window in stopband window, and on and off is connect by control split ring resonator opening
Open, to realize the function of RFID tag.
The advantages of the present invention:
(1) present invention is using the transparent conceptual design RFID tag of electromagnetically induced, and it has simple and compact for structure, just
Premium properties is waited in integrated.
(2) present invention reduces the coupling effect between each split ring resonator using the principle of main transmission microstrip line work(point
Answer, eliminate the error of RFID tag frequency deviation.
(3) present invention divides principle using the work(of one-to-two, realizes four codings, divides principle according to the work(more than one point,
The coding of more long number can be realized.
The purpose of the present invention, feature and advantage will make explanation further below referring to the drawings in conjunction with the embodiments.
Brief description of the drawings
Fig. 1 is the structure three-dimensional schematic diagram of the RFID tag provided by the invention based on work(point principle.
Fig. 2 is the substrate front side structural representation of the RFID tag provided by the invention based on work(point principle.
Fig. 3 is encoding efficiency figure of the RFID tag provided by the invention based on work(point principle in 5GHz.
Embodiment
As shown in Figure 1 and Figure 2, a kind of RFID tag for dividing principle based on work(, including medium substrate 2, medium substrate 2
The positive micro-strip RFID tag structure 3 of metal ground structure 1 and medium substrate 2 at the back side, 2 positive micro-strip of medium substrate
RFID tag structure 3 includes being printed on metallic micro strip structure 31 on medium substrate 2, the first resonance structure unit 32, the
Two resonance structure units 33, the 3rd resonance structure unit 34 and the 4th resonance structure unit 35；First resonance structure unit 32,
Second resonance structure unit 33, the 3rd resonance structure unit 34 and the 4th resonance structure unit 35 and metallic micro strip structure 31 it
Between distance it is adjustable.
Metallic micro strip structure 31 is by two sections of microstrip transmission lines, two sections of micro-strip short-circuit lines and square endless metal microstrip line structure
Into mainly realizing the function on work(division and combination road.
The first resonance structure unit 32, the second resonance structure unit 33, the 3rd resonance structure being printed on medium substrate 2
The resonance structure unit 35 of unit 34 and the 4th is respectively provided with an aperture slots, by controlling the conducting of four aperture slots and closing
RFID tag function is realized in conjunction.
As an example, a kind of RFID tag based on work(point principle is designed, emulated.Selected in design of Simulation
Medium substrate be that Rogers RT/duroid 5880 its dielectric constant is 2.2, thickness 0.254mm, loss angle tangent is
0.0009, the circuit structure size wherein on medium substrate 2 is respectively the positive input of medium substrate 2 and output metal band
Width is 0.76mm, and the width of remaining all metal band is 0.38mm, and the length of four opening resonance loop structures is
9mm, width are 4.5mm, and the openings of sizes of four split ring resonators is respectively 2mm, 2.5mm, 3mm, 3.5mm.Fig. 3 gives
Encoding efficiency of the RFID tag in 5GHz in this example, it is possible to achieve 1111,1110,1101,1011,0111 etc. a variety of group
Close, and without influence, no frequency shift (FS) between each coding.
Further, by changing the main work(separation structure for transmitting metallic micro strip structure 31, it is possible to achieve the coding of more long number
Design.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such especially statement and embodiment.This area
Those of ordinary skill can make the various other various tools for not departing from the present invention according to these technical inspirations disclosed by the invention
Body deforms and combination, and these deformations and combination are still within the scope of the present invention.
Claims (3)
1. a kind of micro-strip RFID tag for dividing principle based on work(, including medium substrate (2), the gold at medium substrate (2) back side
Possession structure (1) and the positive micro-strip RFID tag structure (3) of medium substrate (2), it is characterised in that：The medium base
The positive micro-strip RFID tag structure (3) of plate (2) include being printed on metallic micro strip structure (31) on medium substrate (2),
First resonance structure unit (32), the second resonance structure unit (33), the 3rd resonance structure unit (34) and the 4th resonance knot
Structure unit (35)；Described the first resonance structure unit (32), the second resonance structure unit (33), the 3rd resonance structure unit
(34) and the 4th resonance structure unit (35) and the distance between metallic micro strip structure (31) it is adjustable.
2. the micro-strip RFID tag according to claim 1 for dividing principle based on work(, it is characterised in that：Described metal
Microstrip structure (31) is made up of two sections of microstrip transmission lines, two sections of micro-strip short-circuit lines and square endless metal microstrip line, realizes work(point
With the function of combining.
3. the micro-strip RFID tag according to claim 1 for dividing principle based on work(, it is characterised in that：Described printing
The first resonance structure unit (32), the second resonance structure unit (33), the 3rd resonance structure unit on medium substrate (2)
(34) and the 4th resonance structure unit (35) is respectively provided with an aperture slots, by controlling the conducting of four aperture slots and closing
RFID tag function is realized in conjunction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710782968.8A CN107578082A (en) | 2017-09-03 | 2017-09-03 | A kind of RFID tag for dividing principle based on work( |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710782968.8A CN107578082A (en) | 2017-09-03 | 2017-09-03 | A kind of RFID tag for dividing principle based on work( |
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| CN107578082A true CN107578082A (en) | 2018-01-12 |
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| CN201710782968.8A Pending CN107578082A (en) | 2017-09-03 | 2017-09-03 | A kind of RFID tag for dividing principle based on work( |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110334556A (en) * | 2019-07-05 | 2019-10-15 | 电子科技大学 | Coding method based on the passive frequency conversion RFID tag circuit of transistor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303048Y (en) * | 2008-12-10 | 2009-09-02 | 华南理工大学 | Microwave range dielectric resonator RFID tag antenna capable of working on metal surfaces |
| CN102129603A (en) * | 2011-03-22 | 2011-07-20 | 西安电子科技大学 | Chipless radio frequency identification (RFID) electronic label based on resonance characteristic of conductor |
| CN102832433A (en) * | 2012-08-21 | 2012-12-19 | 华南理工大学 | Non-uniform power divider with integrated band-pass filtering function |
| US20150116059A1 (en) * | 2013-10-31 | 2015-04-30 | Zhejiang University | Compact microstrip bandpass filter with multipath source-load coupling |
| CN105488898A (en) * | 2013-10-28 | 2016-04-13 | 东莞市清大曜嘉信息技术有限公司 | Internet query verification method for antiferromagnetic resonance identifier |
| CN105956645A (en) * | 2016-05-13 | 2016-09-21 | 集美大学 | Electronic tag without chip |
| CN106250963A (en) * | 2015-06-08 | 2016-12-21 | 施乐公司 | Print system framework for real-time coding chipless RFID label |
| CN207097036U (en) * | 2017-09-03 | 2018-03-13 | 电子科技大学 | A kind of RFID tag for dividing principle based on work( |
-
2017
- 2017-09-03 CN CN201710782968.8A patent/CN107578082A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303048Y (en) * | 2008-12-10 | 2009-09-02 | 华南理工大学 | Microwave range dielectric resonator RFID tag antenna capable of working on metal surfaces |
| CN102129603A (en) * | 2011-03-22 | 2011-07-20 | 西安电子科技大学 | Chipless radio frequency identification (RFID) electronic label based on resonance characteristic of conductor |
| CN102832433A (en) * | 2012-08-21 | 2012-12-19 | 华南理工大学 | Non-uniform power divider with integrated band-pass filtering function |
| CN105488898A (en) * | 2013-10-28 | 2016-04-13 | 东莞市清大曜嘉信息技术有限公司 | Internet query verification method for antiferromagnetic resonance identifier |
| US20150116059A1 (en) * | 2013-10-31 | 2015-04-30 | Zhejiang University | Compact microstrip bandpass filter with multipath source-load coupling |
| CN106250963A (en) * | 2015-06-08 | 2016-12-21 | 施乐公司 | Print system framework for real-time coding chipless RFID label |
| CN105956645A (en) * | 2016-05-13 | 2016-09-21 | 集美大学 | Electronic tag without chip |
| CN207097036U (en) * | 2017-09-03 | 2018-03-13 | 电子科技大学 | A kind of RFID tag for dividing principle based on work( |
Non-Patent Citations (1)
| Title |
|---|
| 蒋迪;徐跃杭;徐锐敏;林为干;: "基于开环谐振器的新型宽带功率分配器研究", 微波学报, no. 03, pages 1 - 3 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110334556A (en) * | 2019-07-05 | 2019-10-15 | 电子科技大学 | Coding method based on the passive frequency conversion RFID tag circuit of transistor |
| CN110334556B (en) * | 2019-07-05 | 2021-09-24 | 电子科技大学 | Encoding method based on transistor passive frequency conversion RFID tag circuit |
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