CN206412457U - A kind of Multipurpose label antenna - Google Patents
A kind of Multipurpose label antenna Download PDFInfo
- Publication number
- CN206412457U CN206412457U CN201720020810.2U CN201720020810U CN206412457U CN 206412457 U CN206412457 U CN 206412457U CN 201720020810 U CN201720020810 U CN 201720020810U CN 206412457 U CN206412457 U CN 206412457U
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- Prior art keywords
- antenna
- radiation patch
- utility
- plate
- label antenna
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- 230000005855 radiation Effects 0.000 claims abstract description 44
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000008280 blood Substances 0.000 description 5
- 210000004369 blood Anatomy 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- -1 muscle Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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- Waveguide Aerials (AREA)
Abstract
The utility model is related to a kind of Multipurpose label antenna, and it includes radiation patch, medium substrate and metal ground plate；Radiation patch is metal patch, and it, which is printed on the front of medium substrate and surface, the intersecting microband paste of annular；Microband paste constitutes a symmetrical intersecting dipole antenna configuration of annular, and resonant frequency, input impedance and the bandwidth of operation of antenna are adjusted by adjusting the annulus number, radius size and annulus compactedness of microband paste；The center of radiation patch is provided with RFID chip, and radiation patch is connected by microstrip feed line with chip；Metal ground plate is printed on the back side of medium substrate；The back side of earth plate has also sticked one block of high dielectric constant plate.The utility model structure design is simple, reasonable, and cost is low, it is adaptable to various complicated, and radiation patch is using the intersecting microband paste constituted of multiple metal rings, it is possible to achieve the change of resonant tag frequency, so as to reach the purpose of antenna miniaturization.
Description
Technical field
The utility model belongs to communication technical field, and in particular to a kind of Multipurpose label antenna.
Background technology
With continuing to develop for technology of Internet of things, RFID technique faces huge challenge.RFID technique is applied to cold chain
It is a big focus of research in recent years RFID label antenna in logistics.The label antenna of market demands should have following substantially special
Property：Small volume, cost are low, readable distance is remote, adapt to the ultrahigh frequency RFID band requirement of global country variant, can be pasted on gold
The arbitrary objects such as category, muscle surface, various severe working environments etc. are adapted to, these requirements are all RFID label antenna research
Field problem urgently to be resolved hurrily.At present, RFID label antenna is one of study hotspot the problem of being adapted to various environment, is surrounded
The research in the field also achieves certain achievement in research, but the development and ever-increasing diversified demand with industry are given
RFID label antenna brings many new challenges, for example：The label of human body surface can be pasted on；Liquid can be pasted on
The label on (water, blood etc.) surface；It can be used in the label of the multiple fields such as medical treatment, logistics.
The label suitable for special media object typically reduces the background object of complexity to mark by three kinds of methods at present
Sign the influence of antenna near-field：1st, using the medium substrate of high-k, such as ceramic substrate, or one high resistance grounding of insertion
Plate, such as photon band gap (PBG) structure.2nd, antenna, such as EBG, AMC, HIS structure are made using Meta Materials.3rd, in label antenna
Metal ground plate is added in design, is connected radiating element with metal ground plate by short-circuit structure.If using Gao Jie
Permittivity media plate can increase the commercial cost of label antenna as the medium substrate of antenna；Using high resistance grounding plate and super
Material can increase the design cost of antenna again；And the third addition metal ground plate can typically reduce the radiation effect of label antenna
Rate.
In order to meet the design requirement of multifunctional label, while considering the various indexs of antenna again, it is therefore desirable to right
Multifunctional label Antenna Design is considered.Further, since the ultrahigh frequency RFID frequency range in every country and area is divided not
Unanimously, such as European Union is 865.6~867.6MHz, and North America is 902~928MHz, and China is 840~845MHz and 920~925MHz
Deng so if the label antenna of design will can meet global general-use, it is desirable to which label antenna at least has 100MHz work
Bandwidth, i.e., will cover 860~960MHz frequency ranges.The band spread of antenna can be by dropping low reactance-resistance ratio, the base using small dielectric constant
Plate, increase substrate thickness, the method such as crack on floor or radiating element surface to realize.
As previously described, the background object that reduction water content is higher is reached by adding grounding probe or short-circuit wall construction
Influence to antenna performance, can increase the difficulty of manufacture craft, and increase makes the cost of antenna, and when antenna has been pasted on radiation
During the background object of loss, the radiation intensity of antenna can be reduced again, reduces the gain of antenna, shorten the reading/writing distance of antenna.
With continuing to develop for REID, many specific requirements are proposed to label antenna, generally directed to not
With application field, it is necessary to different label antenna.Such as to metal object, it would be desirable to be able to the anti-metal for metal object surface
Label antenna；To objects such as muscle, blood, it would be desirable to be able to the multifunctional label antenna for perishable body surface.
At present, the such Railway Project of label antenna generally existing that in the market occurs：1. suitable environment is single, it is impossible to be used in
The environment of the special medias such as water, blood；2. working band width not enough, can only be directed to the specific ultrahigh frequency RFID in some area
Frequency range；3. complicated, manufacture craft is complicated；4. cost is not low enough.
When antenna sticks on the body surface of special media, the radiation characteristic of antenna can sharp reduce, so can be right
The performance of antenna has a negative impact.The reason for occurring such be mutated is mainly：The incidence wave that read write line is sent can be by object
Surface reflected with the phase change of 180 degree, back wave is cancelled out each other with incidence wave, is so reduced and is sent by read write line
Be used for encourage the energy of chip.
The content of the invention
In view of the above-mentioned problems, the utility model proposes a kind of Multipurpose label antenna, its structure design is simple, reasonable,
Suitable for the oval microband paste label antenna of various complicated, metal ground plate is used on antenna structure, effectively
Influence of the background object to the nearly radiation field of antenna is reduced, such as reduces the gain of antenna, change the impedance of antenna；Work as background
When object is water content high object, one block of such as ceramics, mica high dielectric constant plate can be sticked after metal ground plate,
The electrical connection between label antenna and background object is efficiently avoid, damage of the background object to aerial radiation intensity is reduced
Consumption；The microband paste that radiation patch is intersected using multiple metal rings is constituted, and the compactedness for changing two annulus of outermost just can be with
The change of label antenna operational resonant frequency is realized, so as to reach the purpose of antenna miniaturization.
The technical solution of the utility model is as follows：
Above-mentioned utility model Multipurpose label antenna, including radiation patch, medium substrate and metal ground plate；The spoke
Paster is penetrated for metal patch, it, which is printed on the front of the medium substrate and surface, the intersecting microband paste of annular；It is described
Microband paste constitutes a symmetrical intersecting dipole antenna configuration of annular, by adjust the microband paste annulus number, half
Footpath size and annulus compactedness adjust resonant frequency, input impedance and the bandwidth of operation of antenna；The center of the radiation patch
RFID chip is provided with, the radiation patch is connected by microstrip feed line with the chip；The metal ground plate is printed on institute
State the back side of medium substrate；The back side of the earth plate has also sticked one block of high dielectric constant plate.
The utility model Multipurpose label antenna, wherein：The working band width of the antenna is not less than 100MHz.
The utility model Multipurpose label antenna, wherein：The radiation patch is to be made up of metallic copper and thickness is
0.035mm。
The utility model Multipurpose label antenna, wherein：The medium substrate uses thickness for 0.8mm polytetrafluoroethyl-ne
Alkene plate.
The utility model Multipurpose label antenna, wherein：The high dielectric constant plate thickness is 1mm.
The utility model Multipurpose label antenna, wherein：The radiation patch, medium substrate, metal ground plate and height
Dielectric constant dielectric plate is ellipsoidal structure.
Beneficial effect：
The utility model Multipurpose label Antenna Construction Design is simple, reasonable, easy to make, it is adaptable to various complicated
Oval microband paste label antenna, on antenna structure use metal ground plate, efficiently reduce background object to day
The influence of the nearly radiation field of line, such as reduces the gain of antenna, changes the impedance of antenna；When background object is the high thing of water content
During body, the high dielectric constant plates such as one block of ceramics, mica can be sticked after metal ground plate, label antenna is efficiently avoid
Electrical connection between background object, reduces loss of the background object to aerial radiation intensity；Radiation patch surface is used
Multiple metal rings are intersecting to be constituted, and label antenna operational resonant frequency can just be realized by changing the compactedness of two annulus of outermost
Change, so as to reach the purpose of antenna miniaturization；The microband paste that loop feeder intersects, exhibition are used on radiation patch surface
The bandwidth of operation of the wide label, maximum is more than 100MHz, is fully able to the hyperfrequency of different zones covering the whole world
RFID frequency ranges；Medium substrate uses polyfluortetraethylene plate, cheap, low manufacture cost；Meanwhile, the radiation patch of antenna, Jie
The shape of matter substrate, metal ground plate and high dielectric constant plate is all ellipse, make use of the gradually changeable of ellipse, makes antenna
There is stable service behaviour in complicated use environment.
Brief description of the drawings
Fig. 1 is the top view of the utility model Multipurpose label antenna；
Fig. 2 is side view of the utility model Multipurpose label antenna under conventional environment；
Fig. 3 is the side view of the utility model Multipurpose label antenna in particular circumstances.
Embodiment
As shown in Figures 1 to 3, the utility model Multipurpose label antenna, including oval radiation patch 1, medium base
Plate 2 and metal ground plate 3.
The radiation patch 1 is the paster being made up of metallic copper, and thickness is 0.035mm, and it is printed on the front of medium substrate 2
And surface is provided with multiple microband pastes 11 intersected in a ring；The microband paste 11 constitutes one and is similar to symmetrically annular intersect
The structure of dipole antenna, can be adjusted by the annulus number, radius size and annulus compactedness that adjust microband paste 11
Resonant frequency, input impedance and the bandwidth of operation of antenna；Simultaneously as the cirque structure of microband paste 1, forces electric current in phase
On the same surface of radiation patch 1, increase its flow path, also correspond to equally add the length of radiation patch 1, so as to reach
To the purpose of antenna miniaturization；The radiation patch 1 is provided centrally with RFID chip 5, and the chip 5 passes through microstrip feed line and radiation
Paster 1 is connected.
The medium substrate 2 uses thickness for 0.8mm polyfluortetraethylene plate, cheap.
The metal ground plate 3 is made up of metallic copper, and thickness is 0.035mm, and it is printed on the back side of the medium substrate 2, adopts
Isolate radiation patch 1 and high-moisture object with metal ground plate 3, reduction high-moisture object is produced to radiation patch 1
High electromagnetic consumable, is effectively guaranteed the radiation efficiency and radiation length of antenna.
The back side of the metal ground plate 3 has sticked the high dielectric constant plate that a layer thickness is 1mm, such as ceramics, mica
Deng for stablizing service behaviour when label antenna sticks on the special body surfaces such as water, blood, significantly reducing special Jie
The radiation loss of confrontation antenna, reduces the downward radiation of electromagnetic wave, improves the radiation utilization rate of antenna；Also make antenna simultaneously
In different environments, with stable service behaviour.
Label antenna working band width of the present utility model is not less than 100MHz, is fully able to different zones covering the whole world
Ultrahigh frequency RFID frequency range.Label antenna of the present utility model can be simultaneously more in metal, blood, muscle, water and its mixture etc.
Plant body surface normal work.Label antenna of the present utility model is ellipse, and its major axis is 38mm, and short axle is 16mm, is utilized
Oval gradually changeable, makes antenna have stable service behaviour in complicated use environment.
Experiments verify that, under conditions of the swept area of antenna is ensured, change the shape of radiation patch 1, such as：Circular,
Polygon etc., the service behaviour of antenna keeps stable, with very strong applicability.
The utility model design is simple, reasonable, it is adaptable to the oval microband paste label antenna of various complicated, adopts
With the earth plate of metal structure, influence of the background object to the nearly radiation field of antenna is efficiently reduced, such as reduces the increasing of antenna
Benefit, the impedance for changing antenna etc.；When background object is the high object of water content, one piece such as pottery are sticked after metal ground plate
The high dielectric constant plate such as porcelain, mica, efficiently avoid the electrical connection between label antenna and background object, reduces
Loss of the background object to aerial radiation intensity；Radiation patch is changed using the intersecting microband paste constituted of multiple metal rings
The compactedness of two annulus of outermost can just realize the change of label antenna operational resonant frequency, so as to reach that antenna is small-sized
The purpose of change.
Claims (6)
1. a kind of utility model Multipurpose label antenna, including radiation patch, medium substrate and metal ground plate；Its feature exists
In：The radiation patch is metal patch, and it, which is printed on the front of the medium substrate and surface, the intersecting micro-strip of annular
Paster；The microband paste constitutes a symmetrical intersecting dipole antenna configuration of annular, by the circle for adjusting the microband paste
Ring number, radius size and annulus compactedness adjust resonant frequency, input impedance and the bandwidth of operation of antenna；
The radiation patch is provided centrally with RFID chip, and the radiation patch is connected by microstrip feed line with the chip；
The metal ground plate is printed on the back side of the medium substrate；
The back side of the earth plate has also sticked one block of high dielectric constant plate.
2. utility model Multipurpose label antenna as claimed in claim 1, it is characterised in that：The working band of the antenna is wide
Degree is not less than 100MHz.
3. utility model Multipurpose label antenna as claimed in claim 1, it is characterised in that：The medium substrate uses thickness
For 0.8mm polyfluortetraethylene plate.
4. utility model Multipurpose label antenna as claimed in claim 1, it is characterised in that：The high dielectric constant plate
Thickness is 1mm.
5. utility model Multipurpose label antenna as claimed in claim 1, it is characterised in that：The radiation patch is by metal
Copper into and thickness be 0.035mm.
6. utility model Multipurpose label antenna as claimed in claim 1, it is characterised in that：The radiation patch, medium base
Plate, metal ground plate and high dielectric constant plate are ellipsoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020810.2U CN206412457U (en) | 2017-01-09 | 2017-01-09 | A kind of Multipurpose label antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720020810.2U CN206412457U (en) | 2017-01-09 | 2017-01-09 | A kind of Multipurpose label antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206412457U true CN206412457U (en) | 2017-08-15 |
Family
ID=59553442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720020810.2U Expired - Fee Related CN206412457U (en) | 2017-01-09 | 2017-01-09 | A kind of Multipurpose label antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206412457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785341A (en) * | 2017-01-09 | 2017-05-31 | 成都信息工程大学 | A kind of Multipurpose label antenna |
| CN109509960A (en) * | 2019-01-22 | 2019-03-22 | 公安部交通管理科学研究所 | Ultrahigh frequency RFID anti-metal tag antenna |
-
2017
- 2017-01-09 CN CN201720020810.2U patent/CN206412457U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785341A (en) * | 2017-01-09 | 2017-05-31 | 成都信息工程大学 | A kind of Multipurpose label antenna |
| CN106785341B (en) * | 2017-01-09 | 2023-09-01 | 成都信息工程大学 | Multipurpose tag antenna |
| CN109509960A (en) * | 2019-01-22 | 2019-03-22 | 公安部交通管理科学研究所 | Ultrahigh frequency RFID anti-metal tag antenna |
| CN109509960B (en) * | 2019-01-22 | 2023-09-22 | 公安部交通管理科学研究所 | Ultrahigh frequency RFID anti-metal tag antenna |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |