CN203288738U - Tag antenna applied to 860-MHz ultrahigh frequency - Google Patents
Tag antenna applied to 860-MHz ultrahigh frequency Download PDFInfo
- Publication number
- CN203288738U CN203288738U CN2013202949271U CN201320294927U CN203288738U CN 203288738 U CN203288738 U CN 203288738U CN 2013202949271 U CN2013202949271 U CN 2013202949271U CN 201320294927 U CN201320294927 U CN 201320294927U CN 203288738 U CN203288738 U CN 203288738U
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Abstract
The utility model relates to a tag antenna applied to a 860-MHz ultrahigh frequency. The tag antenna comprises a near-field loop antenna and a doublet antenna; and the doublet antenna is connected to the near-field loop antenna. The outline shape of the near-field loop antenna is a rectangular one; and one opposite end of the near-field loop antenna connected to the doublet antenna is led out upwardly to form a easily breaking portion. The doublet antenna includes radiation balancing portions and radiation enhancing portions; two leading-out terminals of the doublet antenna are respectively connected with respective radiation balancing portions from opposite angles of the near-field loop antenna towards opposite directions and are connected with respective radiation enhancing portions by the radiation balancing portions. The provided tag antenna has the advantages of simple structure, scientific and reasonable design, good radiation effect at all directions and low loss; and the requirement of disposable usage can be effectively met.
Description
Technical field
The utility model belongs to the electronic tag field, especially a kind of 860MHz superfrequency label antenna that is applied in.
Background technology
REID is a kind of of automatic identification technology, by wireless radio frequency mode, carries out the noncontact bidirectional data communication, and related data is identified and obtained to target.Radio-frequency recognition system is by electronic tag, and read write line and middleware three parts form.The development of RFID antenna technology has very important significance to maturation and the extensive use of REID.Electronic tag now has been applied to entrance guard management at present, non-parking charge, warehousing management, automobile assembling, apparel applications, a plurality of fields such as the care of animal, under different applied environments, label antenna on electronic tag also needs to be packaged in different moulds and uses, and especially will adapt to disposable requirement.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of 860MHz of being applied in superfrequency label antenna is provided, this tag antenna structure is simple, design science reasonable, in all directions, have stronger radiation effect, and loss is less, can effectively meet disposable requirement.
The utility model solves its technical problem and is achieved through the following technical solutions:
A kind of 860MHz superfrequency label antenna that is applied in, comprise near field loop antenna and doublet antenna, doublet antenna is connected on the loop antenna of near field, its near field loop antenna contour structures is rectangle, upwards draw a frangibility section at the relative end of near field loop antenna with doublet antenna connects, doublet antenna comprises radiation balance section and radiation rib, two exits of doublet antenna respectively from the near field loop antenna the opposing direction of angle is connected separately radiation balance section, connect separately radiation rib by radiation balance section.
And the radiation balance section that the exit of described frangibility section one side connects consists of 8 back-turning section, and the radiation balance section that the exit of a side relative to frangibility section connects consists of 10 back-turning section.
And, described radiation rib one end turn back 90 the degree one make the reinforcement extension.
Advantage of the present utility model and beneficial effect are:
this application is at 860MHz superfrequency label antenna, comprise near field loop antenna and doublet antenna, doublet antenna is connected on the loop antenna of near field, its near field loop antenna contour structures is rectangle, upwards draw a frangibility section at the relative end of near field loop antenna with doublet antenna connects, doublet antenna comprises radiation balance section and radiation rib, two exits of doublet antenna connect separately radiation balance section from the near field loop antenna to the opposing direction of angle respectively, by radiation balance section connection radiation rib separately, of the present utility model simple in structure, design science is reasonable, has stronger radiation effect in all directions, and loss is less, can effectively meet disposable requirement.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection range of the present utility model with this.
a kind of 860MHz superfrequency label antenna that is applied in, comprise near field loop antenna 5 and doublet antenna, doublet antenna is connected on the loop antenna of near field, its near field loop antenna contour structures is rectangle, upwards draw a frangibility section 6 at the relative end of near field loop antenna with doublet antenna connects, doublet antenna comprises radiation balance section 3 and radiation rib 1, two exits 4 of doublet antenna connect separately radiation balance section from the near field loop antenna to the opposing direction of angle respectively, by radiation balance section connection radiation rib separately, the radiation balance section that the exit of frangibility section one side connects consists of 8 back-turning section, the radiation balance section that the exit of a side relative to frangibility section connects consists of 10 back-turning section, the radiation rib one end 90 degree one of turning back are made and are strengthened extension 2.
The utility model is determined the Outside Dimensions of label antenna, draw out basic antenna model in Auto CAD, be directed into the HFSS simulation software, by modeling, parameter modification, the boundary condition setting is also carried out analog simulation, observe the frequency of simulation result and the design of this label antenna, return loss and other parameters approach, designing antenna and free space with and the label chip impedance that is connected reach coupling, again the line style of antenna is finely tuned optimization, guarantee that antenna has performance preferably in the actual application environment of mould.
Frangibility of the present utility model section mainly considers the disposable effect in application, and the utility model radiation rib one end 90 degree one of turning back are made the reinforcement extension,, by test, when extending the antenna side-to-side dimensions, antenna resonant frequency are descended.Near field loop antenna contour structures is rectangle, play the effect of balanced feeding, adjust the real part part of this part adjustable antenna impedance, while strengthening the size up and down of near field ring, antenna resonant frequency reduces, the imaginary part part of radiation balance section adjustable antenna impedance, the live width that can regulate the number of inflections of this part and antenna reaches the optimal performance of antenna.In this Antenna Design, middle near field ring is used for balanced feeding, while suitably regulating near field ring big or small, can change the real part part of antenna impedance, the length of the doublet of antenna both sides can be comparable with 1/4 wavelength, and the imaginary part part of antenna impedance is regulated in the bending zone of width segments finally.The resonance frequency of this antenna after by design and simulation is 860mHz, and the clawback loss at this resonance point place is-49.87db, with the label chip impedance matching, this designing antenna is tested in mould through drawing a design,, with the circular polarized antenna of 8dbi, under the power of 32.5dbm, read distance and be 2.5m.Realized the Antenna Design of suitable mould, in practical application, frangibility section has been broken off with the fingers and thumb disconnected, antenna loses reading performance, has reached disposable characteristic.
Claims (3)
1. one kind is applied in 860MHz superfrequency label antenna, comprise near field loop antenna and doublet antenna, doublet antenna is connected on the loop antenna of near field, it is characterized in that: near field loop antenna contour structures is rectangle, upwards draw a frangibility section at the relative end of near field loop antenna with doublet antenna connects, doublet antenna comprises radiation balance section and radiation rib, two exits of doublet antenna connect separately radiation balance section from the near field loop antenna to the opposing direction of angle respectively, by radiation balance section connection radiation rib separately.
2. the 860MHz superfrequency label antenna that is applied according to claim 1, it is characterized in that: the radiation balance section that the exit of described frangibility section one side connects consists of 8 back-turning section, and the radiation balance section that the exit of a side relative to frangibility section connects consists of 10 back-turning section.
3. the 860MHz superfrequency label antenna that is applied according to claim 1 is characterized in that: the described radiation rib one end 90 degree one of turning back are made the reinforcement extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202949271U CN203288738U (en) | 2013-05-27 | 2013-05-27 | Tag antenna applied to 860-MHz ultrahigh frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202949271U CN203288738U (en) | 2013-05-27 | 2013-05-27 | Tag antenna applied to 860-MHz ultrahigh frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288738U true CN203288738U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202949271U Expired - Fee Related CN203288738U (en) | 2013-05-27 | 2013-05-27 | Tag antenna applied to 860-MHz ultrahigh frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203288738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337692A (en) * | 2013-05-27 | 2013-10-02 | 天津市方通安全印务有限公司 | Tag antenna applied to 860MHz ultrahigh frequency |
-
2013
- 2013-05-27 CN CN2013202949271U patent/CN203288738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337692A (en) * | 2013-05-27 | 2013-10-02 | 天津市方通安全印务有限公司 | Tag antenna applied to 860MHz ultrahigh frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20140527 |