CN202405416U - Bridging-free radio frequency identification high-frequency antenna - Google Patents
Bridging-free radio frequency identification high-frequency antenna Download PDFInfo
- Publication number
- CN202405416U CN202405416U CN201220010395XU CN201220010395U CN202405416U CN 202405416 U CN202405416 U CN 202405416U CN 201220010395X U CN201220010395X U CN 201220010395XU CN 201220010395 U CN201220010395 U CN 201220010395U CN 202405416 U CN202405416 U CN 202405416U
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- Prior art keywords
- thin
- film capacitor
- radio frequency
- film
- input circuit
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Abstract
The utility model discloses a bridging-free radio frequency identification high-frequency antenna comprising an antenna coil, at least one thin film capacitor and an IC (Integrated Circuit) equivalent input circuit, wherein the antenna coil is connected with the thin film capacitor in series; and after the antenna coil is connected with the thin film capacitor in series, the residual two ends are connected with a pin of the IC equivalent input circuit to form a resonant circuit. With the adoption of the manner, the bridging-free radio frequency identification high-frequency antenna can simplify a manufacturing process and improves the reliability of a product.
Description
Technical field
The utility model relates to the high frequency antenna field, particularly relates to a kind of no bridge joint radio frequency identification high frequency antenna.
Background technology
Radio frequency identification (RFID) technology is obtaining application widely aspect logistics, manufacturing, medical treatment, transportation, retail, national defence or the like.The experience of RFID high frequency antenna development at present: lead is tied up → wire mark etching → embossing etching → conductive paste printing.About 90% antenna is the manufacturing of gravure etching method at present; Use the cross cutting punching press to realize the bridge joint of antenna; But bridge process has a lot of weak points: the circuit bridging need be realized and need the bridge detection resistance that manufacturing process is complicated through the cross cutting stamping procedure in (1); (2) product reliability is not high, repeatedly is prone to cause after coiling or the bending bring the bridge contact impedance to become problem big or open circuit, and owing to reliability factor, the cross cutting bridge process has limited the range of choice of the base material and the aluminium foil of different-thickness.(3) under hot and humid environment and under the temperature shock situation, be prone to cause the deterioration etc. of cross cutting point impedance.
The utility model content
The technical problem that the utility model mainly solves provides a kind of no bridge joint radio frequency identification high frequency antenna, can simplified manufacturing technique, improve product reliability.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of no bridge joint radio frequency identification high frequency antenna is provided; Comprise aerial coil, be provided with a thin-film capacitor and IC dummy input circuit at least; Said aerial coil is connected with thin-film capacitor, and the aerial coil remaining two ends, back of connecting with thin-film capacitor constitute a resonant tank with the pin parallel connection of IC dummy input circuit is common again.
Preferably, said thin-film capacitor comprises two metal films all corresponding identical to the position shape, is provided with composite membrane between two metal films.
Preferably; Be provided with the first film electric capacity and second thin-film capacitor of series connection in the said resonant tank; The first film electric capacity two ends are connected with second thin-film capacitor with aerial coil respectively; The other end of second thin-film capacitor is connected with a pin of IC dummy input circuit, and another pin of the other end of aerial coil and IC dummy input circuit is connected.
Preferably, said IC dummy input circuit comprises the electric capacity and the resistance of parallel connection.
Preferably, said the first film electric capacity and output capacitance value several times after second thin-film capacitor is connected output capacitance value greater than the IC dummy input circuit.
Preferably, said thin-film capacitor comprises the aluminum metal film, and polyester material composite membrane, said aluminum metal film pass through the compound adhesive hydropexis on polyester material composite membrane.
The beneficial effect of the utility model is: the utility model does not have bridge joint radio frequency identification high frequency antenna and simplifies manufacturing process, improves product reliability, reduces the input of manufacturing equipment, reduces production costs, and new technology is provided.
Description of drawings
Fig. 1 is the electrical block diagram that the utility model does not have a preferred embodiment of bridge joint radio frequency identification high frequency antenna;
Fig. 2 is the cross section structure sketch map that the utility model does not have the thin-film capacitor of bridge joint radio frequency identification high frequency antenna.
The mark of each parts is following in the accompanying drawing: 1, aerial coil; 2, the first film electric capacity; 3, second thin-film capacitor; 4, IC dummy input circuit; 5, metal film; 6, composite membrane.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection range of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1 and Fig. 2, the utility model embodiment comprises:
A kind of no bridge joint radio frequency identification high frequency antenna comprises: aerial coil 1; The first film electric capacity 2; Second thin-film capacitor 3; IC dummy input circuit 4; Said aerial coil 1 and the first film electric capacity 2; 3 series connection of second thin-film capacitor; The aerial coil 1 remaining two ends, back of connecting with second thin-film capacitor 3 constitute a resonant tank with the pin parallel connection of IC dummy input circuit 4 is common again; The first film electric capacity 2 includes two metal films 5 all corresponding identical to the position shape with second thin-film capacitor 3; Be provided with composite membrane 6 between two metal films 5
The first film electric capacity 2 and output capacitance value after second thin-film capacitor 3 is connected more than ten times in output capacitance value greater than IC dummy input circuit 4.
In sum, the metal film of the first film electric capacity 2 and second thin-film capacitor 3 is aluminium film 5, and composite membrane 6 is processed by the polyester material, and aluminium film 5 passes through the compound adhesive hydropexis on the polyester material.
It is simple that the utility model does not have bridge joint radio frequency identification high frequency antenna manufacturing process, reduces the bridge joint operation of die-cutting machine; Product reliability is high, because there is not bridge contact, does not come the bridge contact impedance to become big problem so do not exist repeatedly around winding; Product detects simple, need the direct current resistance of coil not detected, and also need not do around volume test; Minimizing equipment drops into, because do not need bridge joint, does not need die-cutting device in the production, also need be around volume test equipment and impedance detection instrument; Reduce production costs, because the minimizing of production, testing equipment, the minimizing in operation and man-hour has reduced production cost; The new technology possibility is provided, in sputter HF antenna, vacuum coating HF days Wiring technology, was difficult to realize the bridge joint of antenna in the past, limited the use of these technologies, the design provides a kind of solution route preferably; Solved of the restriction of traditional cross cutting bridge process to base material, aluminum foil thickness, more flexible when making design to the selection of material thickness.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (6)
1. no bridge joint radio frequency identification high frequency antenna; It is characterized in that: comprise aerial coil, be provided with a thin-film capacitor and IC dummy input circuit at least; Said aerial coil is connected with thin-film capacitor, and the aerial coil remaining two ends, back of connecting with thin-film capacitor constitute a resonant tank with the pin parallel connection of IC dummy input circuit is common again.
2. no bridge joint radio frequency identification high frequency antenna according to claim 1 is characterized in that: said thin-film capacitor comprises two metal films all corresponding identical to the position shape, is provided with composite membrane between two metal films.
3. no bridge joint radio frequency identification high frequency antenna according to claim 1; It is characterized in that: the first film electric capacity and second thin-film capacitor that are provided with series connection in the said resonant tank; The first film electric capacity two ends are connected with second thin-film capacitor with aerial coil respectively; The other end of second thin-film capacitor is connected with a pin of IC dummy input circuit, and another pin of the other end of aerial coil and IC dummy input circuit is connected.
4. no bridge joint radio frequency identification high frequency antenna according to claim 1 is characterized in that: said IC dummy input circuit comprises the electric capacity and the resistance of parallel connection.
5. no bridge joint radio frequency identification high frequency antenna according to claim 3 is characterized in that: said the first film electric capacity and output capacitance value multiple after second thin-film capacitor is connected output capacitance value greater than the IC dummy input circuit.
6. no bridge joint radio frequency identification frequency-modulated antenna according to claim 1, it is characterized in that: said thin-film capacitor comprises the aluminum metal film, polyester material composite membrane, said aluminum metal film pass through the compound adhesive hydropexis on polyester material composite membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220010395XU CN202405416U (en) | 2012-01-11 | 2012-01-11 | Bridging-free radio frequency identification high-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220010395XU CN202405416U (en) | 2012-01-11 | 2012-01-11 | Bridging-free radio frequency identification high-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405416U true CN202405416U (en) | 2012-08-29 |
Family
ID=46703043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220010395XU Expired - Lifetime CN202405416U (en) | 2012-01-11 | 2012-01-11 | Bridging-free radio frequency identification high-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935969A (en) * | 2017-04-28 | 2017-07-07 | 无锡科睿坦电子科技股份有限公司 | One kind is without gap bridge high frequency antenna |
-
2012
- 2012-01-11 CN CN201220010395XU patent/CN202405416U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106935969A (en) * | 2017-04-28 | 2017-07-07 | 无锡科睿坦电子科技股份有限公司 | One kind is without gap bridge high frequency antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU DECENT IOT TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LU FENGSHENG Effective date: 20131015 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510000 GUANGZHOU, GUANGDONG PROVINCE TO: 215000 SUZHOU, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131015 Address after: 1, 215000, 68 southeast Avenue, Suzhou, Jiangsu, Changshou City Patentee after: Suzhou Decent Internet of Things Technology Co., Ltd. Address before: 510000, room 12, 1102 Yue Yue Street, Guangzhou, Guangdong, Haizhuqu District Patentee before: Lu Fengsheng |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151228 Address after: Jinmao road Kunshan City, Jiangsu province 215300 weeks town No. 888 room 6 Patentee after: SUZHOU ZUENS IOT TECHNOLOGY CO., LTD. Address before: 1, 215000, 68 southeast Avenue, Suzhou, Jiangsu, Changshou City Patentee before: Suzhou Decent Internet of Things Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |