CN207799726U - A kind of RF tag - Google Patents
A kind of RF tag Download PDFInfo
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- CN207799726U CN207799726U CN201721856613.0U CN201721856613U CN207799726U CN 207799726 U CN207799726 U CN 207799726U CN 201721856613 U CN201721856613 U CN 201721856613U CN 207799726 U CN207799726 U CN 207799726U
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- substrate
- antenna arm
- tag
- antenna
- radio frequency
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Abstract
The utility model provides a kind of RF tag, and the RF tag includes：Substrate, the antenna and radio frequency chip being set in the substrate, the radio frequency chip are arranged in the front of the substrate；The antenna includes being arranged in the both sides first antenna arm of the radio frequency chip and the second antenna arm, the first antenna arm and the second antenna arm are electrically connected with the radio frequency chip respectively, the first antenna arm extends to the back side of the substrate from the front of the substrate, second antenna arm also extends to the back side of the substrate from the front of the substrate, and at the back side of the substrate, the first antenna arm and second antenna arm are mutually not connected to.Gain can be improved in RF tag provided by the utility model.
Description
Technical field
The utility model is related to technical field more particularly to a kind of anti-metal radio frequency RFID tags.
Background technology
Radio frequency identification (Radio Frequency Identification, RFID) technology has been widely used in each
Field, for example, the necks such as sale of goods, transport, production, waste management, postal tracking, aviation luggage management, vehicle toll management
Domain, traditional paper tape bar code because its storage capacity is small, cannot rewrite the shortcomings of, identification field, slowly by RFID
System is substituted.RF tag is primarily now used for high frequency and hyperfrequency, and the major advantage of high frequency is safe, stability
It is good；Hyperfrequency sphere of action is extensive, and now most similar technology of Internet of things is all the ultrahigh frequency electronic tag technology that uses, and data are protected
It is long to deposit the time.For present RF tag there is also narrow bandwidth, gain is bad, leads to that data are easily lost and stability difference etc. is asked
Topic, performance also need to further increase.
Utility model content
The utility model provides a kind of RF tag, and the RF tag includes：Substrate, the day being set in the substrate
Line and radio frequency chip, the radio frequency chip are arranged in the front of the substrate；The antenna includes being arranged in the radio frequency chip
Both sides first antenna arm and the second antenna arm, the first antenna arm and the second antenna arm are electrical with the radio frequency chip respectively
Connection, the first antenna arm extend to the back side of the substrate from the front of the substrate, and second antenna arm is also from institute
The front for stating substrate extends to the back side of the substrate, and in the back side of the substrate, the first antenna arm and described
Two antenna arms are mutually not connected to.
Optionally, the first antenna arm and second antenna arm form coupling at the back side of the substrate.
Optionally, the base material is ABS plastic or pcb board, and the substrate has hollow structure.
Optionally, the material of the substrate is ceramic block.
Description of the drawings
Fig. 1 is the schematic cross-section for the RF tag that the utility model embodiment provides；
Fig. 2 is the schematic diagram of the Facad structure for the RF tag that the utility model embodiment provides；
Fig. 3 is the schematic diagram of the backside structure for the RF tag that the utility model embodiment provides；
Fig. 4 is the operation principle schematic diagram for the RF tag that the utility model embodiment provides.
Specific implementation mode
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the utility model will
More fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.
It please refers to Fig.1, Fig. 2 and Fig. 3, the RF tag 10 that the utility model embodiment provides include substrate 11, setting
Antenna in substrate and radio frequency chip 12, and the radio frequency chip 12 is arranged in the front of substrate 11.Antenna includes that setting exists
The first antenna arm 13 of 12 both sides of radio frequency chip, the second antenna arm 14, the first antenna arm 13 and the second antenna arm 14 respectively and
Radio frequency chip 12 is electrically connected.First antenna arm 13 extends to a side of substrate 11 from the front of substrate 11 and extends to base
The bottom surface at bottom 11, the second antenna arm 14 extend to another side of substrate 11 from the front of substrate 11 and extend to substrate 11
Bottom surface.In the bottom surface of substrate 11, first antenna arm 13 and the second antenna arm 14 are mutually not connected to.
Referring to FIG. 4, the operation principle schematic diagram of the RF tag provided for the utility model embodiment.First antenna
Arm 13 and the second antenna arm 14 are all grounded 19, to which RF tag 10 can work under metal environment, can effectively prevent attached
It at metal surface, metal is interfered caused by electronic tag, makes loss of data.Furthermore first antenna arm 13 and second day
Line arm 14 can generate coupling effect in the bottom surface of substrate 11, to increase the gain of label.Specifically, the utility model is real
The RF tag of example offer is applied, first antenna arm 13 can be considered and ground 19 generates a capacitance C1, the second antenna arm 14 and connect 19
A capacitance C2 is generated, while first antenna arm 13 and the coupling of the second antenna arm 14 also generate third capacitance C3, are considered as radio frequency
The capacitance of label increases, to improve gain.Also, the length in aerial radiation face is also added in the structure, can also be reduced
The size of RF tag makes its miniaturization.
The RF tag 10 that the utility model embodiment provides, the material of substrate 11 can be ABS plastic or PCB
Plate, and hollow structure 15 is set in substrate 11, to reduce the dielectric constant of substrate 11 so that the gain higher of antenna.
In other embodiments, the material of substrate can also be ceramic fast.
Those skilled in the art will readily occur to this practicality after considering specification and putting into practice utility model disclosed herein
Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these
Variations, uses, or adaptations follow the general principle of the utility model and include undocumented skill of the utility model
Common knowledge in art field or conventional techniques.The description and examples are only to be considered as illustrative, the utility model
True scope and spirit are indicated by the following claims.
It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings
Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right
It asks to limit.
Claims (4)
1. a kind of RF tag, which is characterized in that the RF tag includes substrate, the antenna that is set in the substrate and is penetrated
Frequency chip, the radio frequency chip are arranged in the front of the substrate；
The antenna includes being arranged in the both sides first antenna arm of the radio frequency chip and the second antenna arm, the first antenna arm
It is electrically connected respectively with the radio frequency chip with the second antenna arm, the first antenna arm extends to institute from the front of the substrate
The back side of substrate is stated, second antenna arm also extends to the back side of the substrate from the front of the substrate, and described
The back side of substrate, the first antenna arm and second antenna arm are mutually not connected to.
2. RF tag as described in claim 1, which is characterized in that the first antenna arm and second antenna arm are in institute
The back side for stating substrate forms coupling.
3. RF tag as described in claim 1, which is characterized in that the material of the substrate be ABS plastic or pcb board,
The substrate has hollow structure.
4. RF tag as described in claim 1, which is characterized in that the material of the substrate is ceramic block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856613.0U CN207799726U (en) | 2017-12-27 | 2017-12-27 | A kind of RF tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721856613.0U CN207799726U (en) | 2017-12-27 | 2017-12-27 | A kind of RF tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207799726U true CN207799726U (en) | 2018-08-31 |
Family
ID=63279132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721856613.0U Active CN207799726U (en) | 2017-12-27 | 2017-12-27 | A kind of RF tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207799726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108009619A (en) * | 2017-12-27 | 2018-05-08 | 上海数斐信息科技有限公司 | A kind of RF tag |
-
2017
- 2017-12-27 CN CN201721856613.0U patent/CN207799726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108009619A (en) * | 2017-12-27 | 2018-05-08 | 上海数斐信息科技有限公司 | A kind of RF tag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201105 Address after: 226010 east side of the fourth floor of building 4, No.9, Xindong Road, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee after: Saifei Information Technology (Nantong) Co.,Ltd. Address before: 200336 21 21 Tianshan Road, Changning District, Shanghai (Room 403, building 3) Patentee before: Shanghai Yaochuan Information Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |