CN202259665U - Tag antenna for RFID ceramic-based electronic tag - Google Patents
Tag antenna for RFID ceramic-based electronic tag Download PDFInfo
- Publication number
- CN202259665U CN202259665U CN2011202749543U CN201120274954U CN202259665U CN 202259665 U CN202259665 U CN 202259665U CN 2011202749543 U CN2011202749543 U CN 2011202749543U CN 201120274954 U CN201120274954 U CN 201120274954U CN 202259665 U CN202259665 U CN 202259665U
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- curve
- label antenna
- antenna
- ceramic substrate
- tag
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Abstract
The utility model discloses a tag antenna for an RFID ceramic-based electronic tag, comprising a ceramic substrate, wherein the ceramic substrate is provided with a metal layer; the metal layer comprises an antenna area and a center feed area with a curve-shaped outline. The tag antenna disclosed by the utility model makes use of the center feed area with the curve-shaped outline and the chip on board technology such that the tag antenna has characteristics of smaller dimension, big bandwidth and good radiation characteristic, and advantages of simple structure, simple manufacturing process, low production cost, good omnidirectional radiation performance, easy integration and the like.
Description
Technical field
The utility model relates to a kind of label antenna, particularly a kind of label antenna that is used for RFID Tao Ji electronic tag.
Background technology
RFID (less radio-frequency, Radio Frequency Identification) utilizes radiofrequency signal to carry out contactless two-way communication from the nineties in 20th century one of interest, automatically recognition objective object and obtain the wireless communication technology of relevant information data.This technology is compared with traditional bar codes technique has that scanning is fast, volume is little, shape is many, repeat usage is high, penetrability is strong, data accumulating characteristics capacious, and it is safe, can not have the barrier read purposefully.Wherein, the RFID label antenna is the key technology of less radio-frequency.Yet it is bigger that label of the prior art has a volume, the shortcoming that bandwidth is little, radiation feature is bad, and structure and manufacturing process more complicated all usually, and have that cost is higher, the total body radiation poor performance, be not easy to integrated shortcoming.
The utility model content
The purpose of the utility model provides that a kind of size is little, bandwidth is big, radiation characteristic is good, simple in structure, manufacturing process is simple, cost is low, the omnidirectional radiation performance is good and be easy to the integrated label antenna that is used for RFID Tao Ji electronic tag.
For solving the problems of the technologies described above; The utility model provides a kind of label antenna of the RFID of being used for Tao Ji electronic tag; It is characterized in that: comprise ceramic substrate, on said ceramic substrate, metal level is set, said metal level comprises antenna field and the apex drive district with shaped form profile.
Further, the shaped form profile in said apex drive district comprises end to end first curve, second curve, the 3rd curve and the 4th curve, and wherein, first, second, third, fourth curve is all recessed to the inside in said apex drive district.
Further, the curvature of said the first, the 3rd curve is less than the curvature of said the second, the 4th curve.
Further, said label antenna also comprises aerial coil, and said aerial coil has first end and second end, between said first end and second end, is electrically connected with control chip.
Further, first end of said aerial coil and second end are separately positioned on the maximum position of curvature of said the second, the 4th curve.
Further, said control chip is a chip on board.
Further, said ceramic substrate is an aluminium oxide ceramic substrate.
Label antenna in the utility model is owing to adopt the apex drive district and the chip on board technology of curved profile; Therefore; Make this label antenna not only have the characteristics that size is little, bandwidth is big, radiation characteristic is good, and have simple in structure, manufacturing process is simple, cost is low, the omnidirectional radiation performance is good and be easy to advantages such as integrated.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Fig. 1 shows the structural representation in the utility model.As shown in Figure 1, the label antenna that is used for RFID Tao Ji electronic tag described in the utility model comprises ceramic substrate 2, on said ceramic substrate 2, metal level is set, and said metal level comprises antenna field 1 and the apex drive district 5 with shaped form profile.Preferably; Said metal level is to be arranged on the said ceramic substrate 2 through the mode of electroplating, and preferably, said ceramic substrate 2 is of a size of 40mm * 90mm; Thickness is 0.6mm; Dielectric constant is 9.2, and the dielectric loss tangent value is 0.0022, thereby makes this label antenna have the advantages that size is little, bandwidth is big, radiation characteristic is good.
Preferably; Said apex drive district 5 forms through electroplating etching, and it is used to regulate coupling, because this part has adopted shaped form profile rather than general linear profile; Therefore can obtain good impedance matching effect, thereby obtain excellent antenna performance; In addition, form antenna field 1 through the method for electroplating etching and make that with apex drive district 5 label antenna in the utility model is simpler on manufacturing process, simultaneously, also greatly reduce cost.Further, said label antenna also comprises aerial coil 4, and said aerial coil 4 has first end and second end, between said first end and second end, is electrically connected with control chip 3.Preferably; Said control chip 3 is chip on board (COB; Chip On Board), is about to the semiconductor chip handing-over and is mounted on the printed substrate, being electrically connected with the lead-in wire sewing method of chip and substrate realized; And the usable resins covering adopts the chip on board technology to make this label antenna volume littler, integrated more easily to guarantee reliability.Preferably, said ceramic substrate 2 is aluminium oxide ceramic substrates.
Preferably, the shaped form profile in said apex drive district 5 comprises end to end first curve 6, second curve 7, the 3rd curve 8 and the 4th curve 9, and wherein, first, second, third, fourth curve is all recessed to the inside in said apex drive district 5.Preferably, the curvature of said the first, the 3rd curve 6,8 is less than the curvature of said the second, the 4th curve 7,9.Further, first end of said aerial coil 4 and second end are separately positioned on the maximum position of curvature of said the second, the 4th curve, to obtain better antenna performance.
Label antenna in the utility model can reach following performance parameter: directive gain can reach 2.7, and operating frequency can reach 900, and deflection can reach 73 °.
Label antenna in the utility model is owing to adopt the apex drive district and the chip on board technology of curved profile; Therefore; Make this label antenna not only have the characteristics that size is little, bandwidth is big, radiation characteristic is good, and have simple in structure, manufacturing process is simple, cost is low, the omnidirectional radiation performance is good and be easy to advantages such as integrated.
Claims (7)
1. label antenna that is used for RFID Tao Ji electronic tag is characterized in that: comprise ceramic substrate, on said ceramic substrate, metal level is set, said metal level comprises antenna field and the apex drive district with shaped form profile.
2. label antenna as claimed in claim 1; It is characterized in that: the shaped form profile in said apex drive district comprises end to end first curve, second curve, the 3rd curve and the 4th curve; Wherein, first, second, third, fourth curve is all recessed to the inside in said apex drive district.
3. label antenna as claimed in claim 2 is characterized in that: the curvature of said the first, the 3rd curve is less than the curvature of said the second, the 4th curve.
4. like each described label antenna of claim 2-3, it is characterized in that: said label antenna also comprises aerial coil, and said aerial coil has first end and second end, between said first end and second end, is electrically connected with control chip.
5. label antenna as claimed in claim 4 is characterized in that: first end of said aerial coil and second end are separately positioned on the maximum position of curvature of said the second, the 4th curve.
6. label antenna as claimed in claim 4 is characterized in that: said control chip is a chip on board.
7. label antenna as claimed in claim 4 is characterized in that: said ceramic substrate is an aluminium oxide ceramic substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202749543U CN202259665U (en) | 2011-07-29 | 2011-07-29 | Tag antenna for RFID ceramic-based electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202749543U CN202259665U (en) | 2011-07-29 | 2011-07-29 | Tag antenna for RFID ceramic-based electronic tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202259665U true CN202259665U (en) | 2012-05-30 |
Family
ID=46120858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202749543U Expired - Fee Related CN202259665U (en) | 2011-07-29 | 2011-07-29 | Tag antenna for RFID ceramic-based electronic tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202259665U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103473586A (en) * | 2012-06-07 | 2013-12-25 | 张蒙 | Aluminum oxide microwave ceramic RFID anti-metal tag |
| CN108461899A (en) * | 2018-02-02 | 2018-08-28 | 睿芯联科（北京）电子科技有限公司 | A kind of hyperfrequency vehicle electron identifying antenna |
| CN109888483A (en) * | 2019-01-03 | 2019-06-14 | 南京南瑞微电子技术有限公司 | A kind of RFID label tag printed antenna structure |
| WO2023051115A1 (en) * | 2021-09-28 | 2023-04-06 | 华为技术有限公司 | Communication tag and electronic device |
-
2011
- 2011-07-29 CN CN2011202749543U patent/CN202259665U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103473586A (en) * | 2012-06-07 | 2013-12-25 | 张蒙 | Aluminum oxide microwave ceramic RFID anti-metal tag |
| CN108461899A (en) * | 2018-02-02 | 2018-08-28 | 睿芯联科（北京）电子科技有限公司 | A kind of hyperfrequency vehicle electron identifying antenna |
| CN109888483A (en) * | 2019-01-03 | 2019-06-14 | 南京南瑞微电子技术有限公司 | A kind of RFID label tag printed antenna structure |
| WO2023051115A1 (en) * | 2021-09-28 | 2023-04-06 | 华为技术有限公司 | Communication tag and electronic device |
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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: 20120530 Termination date: 20120729 |