CN109165714A - A kind of more bit coupled resonance Chip-free labels - Google Patents
A kind of more bit coupled resonance Chip-free labels Download PDFInfo
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- CN109165714A CN109165714A CN201810889220.2A CN201810889220A CN109165714A CN 109165714 A CN109165714 A CN 109165714A CN 201810889220 A CN201810889220 A CN 201810889220A CN 109165714 A CN109165714 A CN 109165714A
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- resonance
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- microstrip line
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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
- G06K19/0672—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 resonating marks
- G06K19/0677—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 resonating marks the record carrier being programmable
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention proposes a kind of more bit coupled resonance Chip-free labels, it is related to radio frequency recognizing electronic label field, including a dielectric-slab, coupled microstrip line on dielectric-slab is set, and it is distributed in several micro-strip resonantors of coupled microstrip line heteropleural, each micro-strip resonantor is composed by two U-shaped resonant rings are mutually embedding, generate two resonance points, the inner and outer ring of micro-strip resonantor is respectively set to resonance or short-circuit condition realizes dibit encoding, several micro-strip resonantors are subjected to permutation and combination in microstrip line heteropleural and realize several codings, the coupled microstrip line characteristic impedance is 50 Ω.The present invention realizes Chip-free label capacity extension by increasing the number of micro-strip resonantor, has flexible expandability.The present invention realizes dibit position coding by unit resonator, improves code capacity, reduces label area.
Description
Technical field
The present invention relates to radio frequency recognizing electronic label technologies, and in particular to a kind of more bit coupled resonance Chip-free labels.
Background technique
Radio Frequency Identification Technology (RFID) is mainly used for logistics, business, the various application fields such as industry and health care, in object
It plays a significant role in networking.Relative to other automatic identification technologies have contactless, be hardly damaged, do not need it is manually dry
In advance, the advantages that high-speed moving object and multi-targets recognition can be achieved.RFID Chip-free label compensates for bar code in reading distance
With the deficiency in automatic identification.
Chip-free label based on Time Domain Reflectometry the disadvantage is that identification distance farther out, to the time-domain analysis of signal have it is higher according to
Lai Xing；The coding mode occupied bandwidth of mixed type Chip-free label is narrow, and code capacity is limited；Chipless mark based on frequency domain reflection
It signs unobstructed smaller with bigger code capacity and opposite its printing area of the Chip-free label of Time Domain Reflectometry.
It therefore, is at present using more one kind using frequency coding mode.Centreless is wherein made using helical resonator
There are obvious disadvantages for piece label: a spiral resonant element corresponds to some resonance frequencies, if to increase number of encoding bits will hold
The continuous number for increasing spiral resonant element, this undoubtedly increases difficulty in the miniaturization of label.
Summary of the invention
The present invention problem small for spiral resonance code capacity, proposes a kind of more bit coupled resonance Chip-free labels
Structure.
To achieve the above object, the present invention adopts the following technical scheme: a kind of more bit coupled resonance Chip-free labels, packet
The coupled microstrip line for including a dielectric-slab, being arranged on dielectric-slab, and be distributed in coupled microstrip line heteropleural several micro-strips it is humorous
Shake device, and each micro-strip resonantor is composed by two U-shaped resonant rings are mutually embedding, and interior U-shaped resonant ring back-off is in outer U-shaped resonant ring
In, it dehisces close to outer U-shaped resonant ring bottom, outer U-shaped resonant ring bottom is parallel with coupled microstrip line, generates two resonance points, will
The inner and outer ring of micro-strip resonantor is respectively set to resonance or short-circuit condition realizes dibit encoding, by several micro-strip resonantors micro-
Band line heteropleural or ipsilateral progress permutation and combination realize several codings, and the coupled microstrip line characteristic impedance is 50 Ω.
Preferably, the length of U-shaped resonant ring bottom is different outside each micro-strip resonantor, for realizing different resonance
Point.
Preferably, resonance point frequency range is arranged in 4GHz~10GHz.
Preferably, the spacing m of two neighboring micro-strip resonantor is 2mm.
Preferably, the substrate that the dielectric-slab uses, dielectric constant 2.55, with a thickness of 0.787mm, loss angle tangent
Value is 0.0019.
Compared with prior art, the present invention its remarkable advantage are as follows: (1) present invention low cost, miniaturization, and number of encoding bits
It is high；(2) present invention can change the length of resonator, in 4GHz to 10GHz, flexibly realize multidigit by increasing resonant element
Number encoder；(3) present invention improves code capacity, reduces label area.
Detailed description of the invention
Fig. 1 is micro-strip resonantor unit dibit encoding " 11 " structure chart of the present invention.
Fig. 2 is micro-strip resonantor unit dibit encoding " 11 " S21 result figure of the present invention.
Fig. 3 is micro-strip resonantor unit dibit encoding " 10 " structure chart of the present invention.
Fig. 4 is micro-strip resonantor unit dibit encoding " 10 " S21 result figure of the present invention.
Fig. 5 is micro-strip resonantor unit dibit encoding " 01 " structure chart of the present invention.
Fig. 6 is micro-strip resonantor unit dibit encoding " 01 " S21 result figure of the present invention.
Fig. 7 is two micro-strip resonantor unit four coding " 11111111 " structure charts of the invention.
Fig. 8 is two micro-strip resonantor unit four coding " 11111111 " S21 result figures of the invention.
Fig. 9 is two micro-strip resonantor unit four coding " 11111110 " structure charts of the invention.
Figure 10 is two micro-strip resonantor unit four coding " 11111110 " S21 result figures of the invention.
With reference to the accompanying drawings and detailed description, the present invention is described in further detail.
Specific embodiment
A kind of more bit coupled resonance Chip-free labels, including a dielectric-slab, the coupled microstrip line being arranged on dielectric-slab,
And several micro-strip resonantors of coupled microstrip line heteropleural are distributed in, each micro-strip resonantor is mutually embedding by two U-shaped resonant rings
It is composed, interior U-shaped resonant ring back-off is dehisced in outer U-shaped resonant ring close to outer U-shaped resonant ring bottom, outer U-shaped resonant ring bottom
Portion is parallel with coupled microstrip line, generates two resonance points, by the way that the inner and outer ring of micro-strip resonantor is respectively set to resonance or short
Line state realizes dibit encoding, realizes several codings in the combination of microstrip line heteropleural by several micro-strip resonantors, described
Coupled microstrip line characteristic impedance is 50 Ω.For each micro-strip resonantor, when the equal resonance of inner and outer ring, near 6GHz and
9.5GHz nearby has a resonance point respectively；When outer ring resonance, inner ring short circuit, the resonance point near 9GHz disappears, and indicates
" 10 " coding；When outer ring short circuit, inner ring resonance, the resonance point near 6GHz disappears, and indicates " 01 " coding.
In further embodiment, the length of U-shaped resonant ring bottom is different outside each micro-strip resonantor, for realizing
Different resonance points.The length of U-shaped resonant ring bottom is L outside each micro-strip resonantor, and L is bigger, and the resonant frequency point of generation is got over
It is small.The minimum when micro-strip resonantor of several different lengths, different coding state is combined, near 6GHz
Near resonance point (can disappear) and 9GHz corresponding minimum resonance point (can disappear) from outer U-shaped resonant ring bottom length most
Big micro-strip resonantor.
In further embodiment, resonance point frequency range is arranged in 4GHz~10GHz.
In further embodiment, the spacing m of two neighboring micro-strip resonantor is 2mm.
In further embodiment, its dielectric constant of substrate that the dielectric-slab uses is 2.55, with a thickness of 0.787mm,
Loss tangent is 0.0019.
Below with reference to embodiment, the present invention will be further described.
Embodiment 1
A kind of more bit coupled resonance Chip-free labels, including a dielectric-slab, the coupled microstrip line being arranged on dielectric-slab,
And it is distributed in several micro-strip resonantors of coupled microstrip line heteropleural.
In the present embodiment, which is 2.55, and thickness is set as 0.787mm, and loss tangent is
0.0019。
The length of U-shaped resonant ring bottom is different outside each micro-strip resonantor.Number by increasing resonator is realized
Multidigit coding, resonance point frequency range is in 4GHz~10GHz.
The spacing of two resonators of coupling on the microstrip line the smallest distance of mutual coupling between resonator.This implementation
The spacing m of two neighboring micro-strip resonantor is 2mm in example.
Unit resonant is as shown in Figure 1, the width of microstrip coupled line is h1=2.2mm, resonator and coupled microstrip line
Spacing be d=0.2mm, the width of U-shaped resonant ring is Wa=0.5mm, and the spacing of two U-shaped resonant rings is gap=0.25mm,
F1=5.9GHz is the resonance frequency of outer U ring, and f2=9.6GHz is the resonance frequency of interior U ring, and the frequency point for generating resonance is labeled as
"1"；It is illustrated in figure 2 double resonance " 11 " state.Corresponding two resonance points of each resonator, by the inside and outside of U-shaped resonator
The mode of rings cut is labeled as " 0 " so that resonance frequency point disappears.Below by taking state " 10 " and " 01 " as an example.When outer ring resonance,
Inner ring short circuit, as shown in figure 3, interior rings cut, so that size incision S1=2mm, the resonance point near 9GHz disappears, and indicates
" 10 " coding, S21 result figure are as shown in Figure 4；Outer ring short circuit, inner ring resonance, outer rings cut, so that size incision S2=3.4mm,
As shown in figure 5, the resonance point near 6GHz disappears, " 01 " coding is indicated, S21 result figure is as shown in Figure 6.
8 codings are realized in instances, first by taking " 11111111 " as an example, as shown in fig. 7, four length are respectively L1=
9.5mm, L2=9mm, L3=8.6mm, L4=8mm, the resonator of " 11 " state, heteropleural arranges two-by-two.As shown in figure 8, respectively
Four resonance points are respectively generated near 6GHz and near 9GHz.
Secondly by taking " 11111110 " as an example, as shown in figure 9, needing three length is respectively L1=9mm, L2=8.5mm, L3
The resonator of " 10 " state of " 11 " state resonator of=8.2mm and a length L4=8mm comes heteropleural two-by-two.It generates
" 11111110 " coding, then the 4th " 1 " and the 8th " 0 " comes from the short resonator L4 of length most section.Such as Figure 10 institute
Show, four resonance points are produced near 6GHz, produces three resonance points near 9GHz, comparison diagram 8, near 9.7GHz
Resonance point disappears, then it represents that is encoded to " 11111110 ".
Claims (5)
1. a kind of more bit coupled resonance Chip-free labels, which is characterized in that including a dielectric-slab, the coupling being arranged on dielectric-slab
Microstrip line is closed, and is distributed in several micro-strip resonantors of coupled microstrip line heteropleural, each micro-strip resonantor is U-shaped humorous by two
Shaking, ring is mutually embedding to be composed, and interior U-shaped resonant ring back-off is dehisced in outer U-shaped resonant ring close to outer U-shaped resonant ring bottom, outer U-shaped
Resonant ring bottom is parallel with coupled microstrip line, generates two resonance points, and the inner and outer ring of micro-strip resonantor is respectively set to resonance
Or short-circuit condition realizes dibit encoding, if by several micro-strip resonantors in microstrip line heteropleural or ipsilateral progress permutation and combination realization
Dry position coding, the coupled microstrip line characteristic impedance are 50 Ω.
2. more bit coupled resonance Chip-free labels according to claim 1, which is characterized in that each micro-band resonance
The length of U-shaped resonant ring bottom is different outside device, for realizing different resonance points.
3. more bit coupled resonance Chip-free labels according to claim 2, which is characterized in that resonance point frequency range is set
It sets in 4GHz~10GHz.
4. more bit coupled resonance Chip-free labels according to claim 1, which is characterized in that two neighboring micro-band resonance
The spacing m of device is 2mm.
5. more bit coupled resonance Chip-free label structures according to claim 1, which is characterized in that the dielectric-slab is adopted
Substrate, dielectric constant 2.55, with a thickness of 0.787mm, loss tangent 0.0019.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889220.2A CN109165714A (en) | 2018-08-07 | 2018-08-07 | A kind of more bit coupled resonance Chip-free labels |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889220.2A CN109165714A (en) | 2018-08-07 | 2018-08-07 | A kind of more bit coupled resonance Chip-free labels |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878147A (en) * | 2019-11-05 | 2020-03-13 | 嘉兴学院 | Multi-section bar code nanorod and preparation method thereof |
| CN113065627A (en) * | 2021-03-16 | 2021-07-02 | 电子科技大学 | Chipless RFID strain sensing tag and nondestructive testing method thereof |
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| CN108133253A (en) * | 2018-01-26 | 2018-06-08 | 同济大学 | The method of chipless RFID electronic labeling information capacity extensions |
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2018
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108133253A (en) * | 2018-01-26 | 2018-06-08 | 同济大学 | The method of chipless RFID electronic labeling information capacity extensions |
Non-Patent Citations (5)
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| MUSTAFA K.: "Compact Microstrip Band Stop Filter Using SRR and CSSR: Design, Simulation and Results", 《EUCAP 2010,BARCELONA,SPAIN》 * |
| WON-SEOK LEE: "Design of Near-field Chipless RFID Tags and Reader", 《2013 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS》 * |
| ZHONG-HUA MA: "A re-transmitted chipless tag using CSRR coupled structure", 《MICROSYSTEM TECHNOLOGIES(2018)》 * |
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| 李秀萍: "基于物联网应用的RFID标签天线研究与设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110878147A (en) * | 2019-11-05 | 2020-03-13 | 嘉兴学院 | Multi-section bar code nanorod and preparation method thereof |
| CN113065627A (en) * | 2021-03-16 | 2021-07-02 | 电子科技大学 | Chipless RFID strain sensing tag and nondestructive testing method thereof |
| CN113065627B (en) * | 2021-03-16 | 2022-08-02 | 电子科技大学 | Chipless RFID strain sensing tag and nondestructive testing method thereof |
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