CN209471465U - RF tag is used in material tracking - Google Patents
RF tag is used in material tracking Download PDFInfo
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- CN209471465U CN209471465U CN201920579942.8U CN201920579942U CN209471465U CN 209471465 U CN209471465 U CN 209471465U CN 201920579942 U CN201920579942 U CN 201920579942U CN 209471465 U CN209471465 U CN 209471465U
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Abstract
The utility model discloses a kind of material tracking RF tags, including substrate layer, radio-frequency antenna and chip, radio-frequency antenna includes small loop coupling antenna and dipole radiation gain antenna, small loop coupling antenna is at U shape, the lower end of small loop coupling antenna extends to form a symmetrical left side, right antenna, it is left, right antenna collectively forms dipole radiation gain antenna, it is left, right antenna all includes sequentially connected three flat segments, two bending parts and end antenna field and from end antenna field inwardly and the 4th flat segments that laterally extend, first, the perimeter difference of second bending part is the 15-20% of the perimeter of the first bending part；The length of 4th flat segments is 10 ± 0.5mm, and the area of end antenna field is 81.2-87.5mm2.The utility model guarantees the impedance operator and resonance frequency of antenna in the suitable situation of tag length by the design of the shape and size to radio-frequency antenna, and can expand bandwidth, improves the use scope and precision of label.
Description
Technical field
The utility model belongs to RFID (radio frequency identification) label technique field, in particular to a kind of RF tag.
Background technique
RF tag is also known as electronic tag, transponder, data medium；Reader is also known as read-out device, scanner, reading
Head, communicator, reader (whether can wirelessly rewrite data depending on electronic tag).Pass through between electronic tag and reader
Coupling element realizes (contactless) coupling in the space of radiofrequency signal；In coupling channel, according to sequential relationship, the biography of energy is realized
It passs and data exchange.
The RFID tag of the prior art generally comprises: including substrate layer, radio-frequency antenna and chip, radio-frequency antenna is set to
Substrate layer, chip are connect with radio-frequency antenna；Radio-frequency antenna includes small loop coupling antenna and dipole radiation gain antenna, and chip is logical
Conductive adhesive is crossed in the small loop coupling antenna.The use scope of RF tag is very wide, and different occasions has different needs.
The standard for considering RF tag performance is mainly the anti-fake tracking performance etc. of signal receiving performance and carrying information, letter
Number receptivity shows the received stability of signal and the received distance of signal, and the performance of certain signal receiving performance also needs
Consider use occasion and the position of electronic tag.The RFID tag of the prior art is longer, mainly due to setting on signal circuit
There is Branching Antenna, signal reception is improved by the extension of Branching Antenna, RFID tag will certainly be lengthened again in this way
Length.And in many occasions, it pastes and uses the position of label that can not paste lower RFID tag since space is limited.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of material tracking RF tag, by radio frequency day
The design of the shape and size of line guarantees the impedance operator and resonance frequency of antenna, and energy in the suitable situation of tag length
Bandwidth is expanded, the use scope and precision of label are improved.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of material tracking use
RF tag, including substrate layer, radio-frequency antenna and chip, the radio-frequency antenna be set to the substrate layer, the chip with it is described
Radio-frequency antenna connection；
The radio-frequency antenna includes small loop coupling antenna and dipole radiation gain antenna, and the chip passes through conductive gluing
It is connected to the small loop coupling antenna；
The small loop coupling antenna is 25.12 ± 0.5mm at U shape, the length of the small loop coupling antenna, and wide
Degree is 5.93 ± 0.1mm；
The lower end of the small loop coupling antenna extends to form symmetrical left antenna and right antenna, the left antenna and institute
It states right antenna and collectively forms the dipole radiation gain antenna, the left antenna and the right antenna all include sequentially connected
First flat segments, the first bending part, the second flat segments, the second bending part, third flat segments, end antenna field and from the end
The 4th flat segments held antenna field inwardly and laterally extended, first bending part and second bending part are upward convex
It rises, and the perimeter of first bending part is greater than the perimeter of second bending part, first bending part and described second curved
Perimeter difference between folding part is the 15-20% of the perimeter of first bending part；
The length of 4th flat segments is 10 ± 0.5mm, and the area of the end antenna field is 81.2-87.5mm2。
It further says, the length of the radio-frequency antenna is 108 ± 0.5mm and width is 8 ± 0.1mm.
It further says, the chip and the small loop coupling antenna are warm under conditions of 180 DEG C and 7s by conducting resinl
Pressure viscosity connects.
It further says, made of the etching aluminum foil that the radio-frequency antenna is 10 ± 2 microns of thickness.
Further say, the substrate layer with a thickness of 50 ± 2 microns.
It further says, the substrate layer is polyethylene terephthalate (PET) layer.
The beneficial effects of the utility model are:
The utility model includes substrate layer, radio-frequency antenna and chip, and radio-frequency antenna is set to substrate layer, chip and radio-frequency antenna
Connection, the dipole radiation gain antenna of radio-frequency antenna include symmetrical left antenna and right antenna, left antenna and right antenna
All there is two bending parts (the first and second bending part), two of them bending part raises upward, and the perimeter of the first bending part is than the
The long 15-20% of the perimeter of two bending parts can be on the basis for guaranteeing antenna resonant frequency by the design of above-mentioned two bending part
On, the length of antenna is effectively reduced, the use scope of label is expanded, when especially being tracked for small-size object；
Furthermore the left antenna and right antenna of the utility model all can also include end antenna field, i.e., in left and right antenna field
End two pieces of areas end antenna field big with respect to school is set, by using the mode that end loads, playing, which improves antenna, hinders
Effect that is anti-and expanding bandwidth, improves the precision and use scope of antenna.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Each section label is as follows in attached drawing:
Substrate layer 1, chip 3, small loop coupling antenna 4, dipole radiation gain antenna 5, left antenna 6, right antenna 7, first
Flat segments 8, the first bending part 9, the second flat segments 10, the second bending part 11, third flat segments 12, end antenna field the 13, the 4th
Flat segments 14, the length L1 of small loop coupling antenna and width W1, the length L2 of the 4th flat segments, radio-frequency antenna length L3
And width W2.
Specific embodiment
Illustrate specific embodiment of the present utility model below by way of particular specific embodiment, those skilled in the art can
The advantages of the utility model is understood by content disclosed in the present specification easily and effect.The utility model can also it is other not
Same mode is practiced, that is, under the scope of revealed without departing substantially from the utility model, can give different modification and change.
Embodiment: a kind of material tracking RF tag, as shown in Figure 1 (dash area is only intended to indicate radio-frequency antenna,
Being not used in indicates section view), including substrate layer 1, radio-frequency antenna and chip 3, the radio-frequency antenna is set on the substrate layer, the core
Piece is connect with the radio-frequency antenna；
The radio-frequency antenna includes small loop coupling antenna 4 and dipole radiation gain antenna 5, and the chip passes through conducting resinl
It is adhered to the small loop coupling antenna；
The small loop coupling antenna is 25.12 ± 0.5mm at U shape, the length L1 of the small loop coupling antenna, and
Width W1 is 5.93 ± 0.1mm；
The lower end of the small loop coupling antenna extends to form symmetrical left antenna 6 and right antenna 7, the left antenna and
The right antenna collectively forms the dipole radiation gain antenna, and the left antenna and the right antenna all include being sequentially connected
The first flat segments 8, the first bending part 9, the second flat segments 10, the second bending part 11, third flat segments 12, end antenna field 13
And inwardly and the 4th flat segments 14 that laterally extend, first bending part and second bending from end antenna field
Portion raises upward, and the perimeter of first bending part be greater than second bending part perimeter, first bending part with
Perimeter difference between second bending part is the 15-20% of the perimeter of first bending part；
The length L2 of 4th flat segments is 10 ± 0.5mm, and the area of the end antenna field is 81.2-87.5mm2。
In the present embodiment, the length L3 of the radio-frequency antenna is 108 ± 0.5mm and width W2 is 8 ± 0.1mm.
In the present embodiment, the chip and the small loop coupling antenna are warm under conditions of 180 DEG C and 7s by conducting resinl
Pressure viscosity connects.
Made of the etching aluminum foil that the radio-frequency antenna is 10 ± 2 microns of thickness, but not limited to this.
The substrate layer with a thickness of 50 ± 2 microns, but not limited to this.
The substrate layer is layer of polyethylene terephthalate, but not limited to this.
Working principle and the course of work:
RF tag in the present embodiment includes substrate layer, radio-frequency antenna and chip, and radio-frequency antenna is set to substrate layer, core
Piece is connect with radio-frequency antenna, and the dipole radiation gain antenna of radio-frequency antenna includes symmetrical left antenna and right antenna, a left side
Antenna and right antenna all have two bending parts (the first and second bending part), and two of them bending part raises upward, and the first bending
The perimeter in portion is 15-20% longer than the perimeter of the second bending part, by the design of above-mentioned two bending part, can guarantee antenna resonance
On the basis of frequency, the length of antenna is effectively reduced, expands the use scope of label, is especially tracked for small-size object
When；
Left antenna and right antenna all can also include end antenna field, i.e., two pieces of faces are arranged in the end of left and right antenna field
The opposite big end antenna field in school of product is equivalent to by using the mode that end loads and increases by one on the equivalent circuit of antenna
A capacitor plays the role of improving antenna impedance and expands bandwidth, improves the precision and use scope of antenna.
The above description is only the embodiments of the present invention, and not thereby the foregoing is merely the implementations of the utility model
Example, therefore it does not limit the scope of the patent of the utility model, made by using the description of the utility model and the drawings
Equivalent structure, be applied directly or indirectly in other relevant technical fields, similarly include the utility model patent protect
It protects in range.
Claims (6)
1. a kind of material tracking RF tag, it is characterised in that: described including substrate layer (1), radio-frequency antenna and chip (3)
Radio-frequency antenna is set to the substrate layer, and the chip is connect with the radio-frequency antenna；
The radio-frequency antenna includes that small loop coupling antenna (4) and dipole radiation gain antenna (5), the chip pass through conducting resinl
It is adhered to the small loop coupling antenna；
The small loop coupling antenna is 25.12 ± 0.5mm at U shape, the length (L1) of the small loop coupling antenna, and wide
Spending (W1) is 5.93 ± 0.1mm；
The lower end of the small loop coupling antenna extends to form symmetrical left antenna (6) and right antenna (7), the left antenna and
The right antenna collectively forms the dipole radiation gain antenna, and the left antenna and the right antenna all include being sequentially connected
The first flat segments (8), the first bending part (9), the second flat segments (10), the second bending part (11), third flat segments (12), end
End antenna field (13) and from the end antenna field inwardly and the 4th flat segments (14) that laterally extend, described first is curved
Folding part and second bending part raise upward, and the perimeter of first bending part is greater than the week of second bending part
Long, the perimeter difference between first bending part and second bending part is the 15-20% of the perimeter of first bending part；
The length (L2) of 4th flat segments is 10 ± 0.5mm, and the area of the end antenna field is 81.2-87.5mm2。
2. material tracking RF tag according to claim 1, it is characterised in that: the length (L3) of the radio-frequency antenna is
108 ± 0.5mm and width (W2) are 8 ± 0.1mm.
3. material tracking RF tag according to claim 1, it is characterised in that: the chip and the small loop coupling day
Line is hot bonding under conditions of 180 DEG C and 7s by conducting resinl.
4. material tracking RF tag according to claim 1, it is characterised in that: the radio-frequency antenna is thickness 10 ± 2
Made of the etching aluminum foil of micron.
5. according to claim 1 material tracking use RF tag, it is characterised in that: the substrate layer with a thickness of 50 ± 2
Micron.
6. material tracking RF tag according to claim 1, it is characterised in that: the substrate layer is poly terephthalic acid
Two ester layer of second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579942.8U CN209471465U (en) | 2019-04-26 | 2019-04-26 | RF tag is used in material tracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579942.8U CN209471465U (en) | 2019-04-26 | 2019-04-26 | RF tag is used in material tracking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209471465U true CN209471465U (en) | 2019-10-08 |
Family
ID=68093990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920579942.8U Active CN209471465U (en) | 2019-04-26 | 2019-04-26 | RF tag is used in material tracking |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190411A1 (en) * | 2020-03-24 | 2021-09-30 | 华为技术有限公司 | Antenna, antenna module and wireless network device |
-
2019
- 2019-04-26 CN CN201920579942.8U patent/CN209471465U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021190411A1 (en) * | 2020-03-24 | 2021-09-30 | 华为技术有限公司 | Antenna, antenna module and wireless network device |
| KR20220158009A (en) * | 2020-03-24 | 2022-11-29 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Antennas, antenna modules, and wireless network devices |
| KR102643317B1 (en) | 2020-03-24 | 2024-03-07 | 후아웨이 테크놀러지 컴퍼니 리미티드 | Antennas, antenna modules, and wireless network devices |
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