CN204577587U - A kind of double dipole RFID label antenna - Google Patents
A kind of double dipole RFID label antenna Download PDFInfo
- Publication number
- CN204577587U CN204577587U CN201520163734.1U CN201520163734U CN204577587U CN 204577587 U CN204577587 U CN 204577587U CN 201520163734 U CN201520163734 U CN 201520163734U CN 204577587 U CN204577587 U CN 204577587U
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- CN
- China
- Prior art keywords
- dipole
- rfid label
- label antenna
- antenna
- straight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The purpose of this utility model is to provide a kind of double dipole RFID label antenna, and its structure is: the dipole antenna arranging bending on substrate, between two dipole antennas, arrange straight-flanked ring; Limit on the upside of straight-flanked ring can move up and down adjustment.The utility model not only structure is simple, and cost is low, and reading range is large, radiation direction is complete, size is little.
Description
Technical field
The utility model relates to RFID label antenna field, especially a kind of double dipole RFID label antenna.
Background technology
Radio-frequency (RF) identification is a new technology developed rapidly, and it utilizes radiofrequency signal automatically to identify object, has been applied to the fields such as traffic management, proof of identification and security control.At present, REID is limited to following frequency band usually: 125 kHz, 13.56 MHz, 840 ~ 960 MHz, 2.45 GHz, and 5.8GHz, and wherein 840 ~ 960MHz is worldwide ultrahigh frequency (UHF) frequency range.Radio-frequency recognition system is made up of three parts: reader, main frame and label antenna.Label antenna is most important element in passive RFID system, and it is made up of antenna radiation unit and RFID chip, and the effective reading distance between label and reader depends on antenna performance and channel performance.In actual applications, mostly reading range is large not, radiation direction is incomplete, size is large and cost is not easy to control for label antenna.
Summary of the invention
The purpose of this utility model is to provide a kind of double dipole RFID label antenna, and its structure is: the dipole antenna arranging bending on substrate, between two dipole antennas, arrange straight-flanked ring; Limit on the upside of straight-flanked ring can move up and down adjustment.
The beneficial effects of the utility model are: the utility model not only structure is simple, and cost is low, and reading range is large, radiation direction is complete, size is little.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Wherein, 1. substrate, 2. dipole antenna; 3. straight-flanked ring; 4. the limit on the upside of.
Embodiment
As shown in Figure 1, a kind of double dipole RFID label antenna, its structure is: the dipole antenna 2 arranging bending on substrate 1, arranges straight-flanked ring 3 between two dipole antennas 2; Limit 4 on the upside of straight-flanked ring 3 can move up and down adjustment.
Described dipole antenna 2 material is copper.
The material of described substrate 1 is pvc.
The utility model is made up of two dipole antennas 2 bent and a straight-flanked ring 3.Good impedance matching can be realized by the parameter adjusting straight-flanked ring 3.The utility model is of compact construction, wider bandwidth, relatively high gain and omnidirectional radiation direction.
Claims (3)
1. a double dipole RFID label antenna, is characterized in that: the dipole antenna (2) arranging bending on substrate (1), arranges straight-flanked ring (3) between two dipole antennas (2); The limit (4) of straight-flanked ring (3) upside can move up and down adjustment.
2. a kind of double dipole RFID label antenna according to claim 1, is characterized in that: described dipole antenna (2) material is copper.
3. a kind of double dipole RFID label antenna according to claim 1, is characterized in that: the material of described substrate (1) is pvc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163734.1U CN204577587U (en) | 2015-03-23 | 2015-03-23 | A kind of double dipole RFID label antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163734.1U CN204577587U (en) | 2015-03-23 | 2015-03-23 | A kind of double dipole RFID label antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204577587U true CN204577587U (en) | 2015-08-19 |
Family
ID=53870184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520163734.1U Expired - Fee Related CN204577587U (en) | 2015-03-23 | 2015-03-23 | A kind of double dipole RFID label antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204577587U (en) |
-
2015
- 2015-03-23 CN CN201520163734.1U patent/CN204577587U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |