CN201048162Y - RFID reader-writer aerial design - Google Patents
RFID reader-writer aerial design Download PDFInfo
- Publication number
- CN201048162Y CN201048162Y CNU2007201439416U CN200720143941U CN201048162Y CN 201048162 Y CN201048162 Y CN 201048162Y CN U2007201439416 U CNU2007201439416 U CN U2007201439416U CN 200720143941 U CN200720143941 U CN 200720143941U CN 201048162 Y CN201048162 Y CN 201048162Y
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- copper
- enamelled wire
- antenna
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- rfid interrogator
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Abstract
The utility model relates to a RFID reader antenna design, belonging to the structure design technical field of the RFID reader antenna. In order to solve the problems existing in the prior RFID low frequency reader that the read-write distance is short, the power consumption is high, and the copper consumption is large, the RFID reader antenna design of the utility model comprises a rectangle hollow-core coli antenna which is formed by enwinding two enamel wires made of copper in parallel, the wire diameters of the two enamel wires are both 0.15 mm, and the two enamel wires are parallel in structure; two ends are provided, and the two thrums of each end are welded together. The total wire diameter is less, the copper consumption is low, the power consumption is low too, the read-write distance of the reader is long, and the utility model is most suitable for the portable type RFID low frequency reader coli antenna.
Description
Technical field
The present invention relates to a kind of rfid interrogator Antenna Design, belong to the antenna structure design field of rfid interrogator.
Background technology
Existing low frequency RF ID reading and writing device antenna all adopts a copper enamelled wire coiling to form coil antenna, in order to make the increase reading/writing distance, often adopts the thick copper enamelled wire in line footpath, like this, copper loss is big, and power consumption is also high, is unfavorable for the popularization of portable RF ID low frequency read write line.For example, turn to 45mmx62mm rectangle air core coil antenna with a Φ 0.25mm line footpath copper enamelled wire, inductance value 410uH, antenna internal resistance 4.1 Ω, low frequency rfid interrogator maximum is read apart from 7.3mm, low frequency rfid interrogator source current 190mA.
Summary of the invention
At the above-mentioned defective of prior art, the present invention will solve problems such as to be suitable for portable RF ID low frequency read write line coil antenna copper loss little, and power consumption is low, and the read write line reading/writing distance is long.
For solving above-mentioned technical problem of the prior art, the invention provides a kind of rfid interrogator Antenna Design, adopt two Φ 0.15mm line footpath parallel coilings of copper enamelled wire to form a 45mmx62mm rectangle hollow coil antenna, two Φ 0.15mm line footpath copper enamelled wires are structurally parallel, two terminations are arranged, and two the end of a thread of each termination weld together.The coil antenna inductance value 410uH of two Φ 0.15mm line footpath copper enamelled wire coilings, antenna internal resistance 5.7 Ω, low frequency rfid interrogator maximum is read apart from 9.3mm, low frequency rfid interrogator source current 144mA.
Among the present invention, also can be aluminium copper-clad enamelled wire by described copper enamelled wire;
Among the present invention, also can be circular hollow coil by described rectangle hollow coil;
Among the present invention, adopt the parallel coiling of self-adhesive enameled wire, also can adopt the coiling that walks abreast of non-self-adhesive enameled wire by the parallel coiling of described enamelled wire;
Among the present invention,, also can adopt the copper enamelled wire in line footpath between the Φ 0.11-0.18mm by the copper enamelled wire in described Φ 0.15mm line footpath;
The invention has the beneficial effects as follows that the line of RFID low frequency read write line coil antenna has directly reduced, copper loss is little, and power consumption is also low, and the read write line reading/writing distance is long, is suitable for portable RF ID low frequency read write line coil antenna most.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the antenna structure view of a rfid interrogator of the present invention.
Wherein, 1 and 2 represent two the end of a thread of a termination respectively, and 3 and 4 represent two the end of a thread of another termination respectively.
Embodiment
In a preferred embodiment of the present invention, adopt two Φ 0.15mm line footpath parallel coilings of copper enamelled wire to form a 45mmx62mm rectangle hollow coil antenna, two Φ 0.15mm line footpath copper enamelled wires are structurally parallel, and two terminations are arranged, and two the end of a thread of each termination weld together.Promptly 1 and 2 two the end of a thread welds together, and 3 and 4 two the end of a thread weld together.The coil antenna inductance value 410uH of two Φ 0.15mm line footpath copper enamelled wire coilings, antenna internal resistance 5.7 Ω, low frequency rfid interrogator maximum is read apart from 9.3mm, low frequency rfid interrogator source current 144mA.
To describe the characteristics of a kind of rfid interrogator Antenna Design of present embodiment below in detail.
1, described copper enamelled wire also can be an aluminium copper-clad enamelled wire.Can realize also that with the coil antenna of aluminium copper-clad enamelled wire coiling copper loss is little, power consumption is also low, and the read write line reading/writing distance is long etc.
2, described rectangle hollow coil also can be circular hollow coil.Circular hollow coil antenna can realize that also copper loss is little, and power consumption is also low, and the read write line reading/writing distance is long etc.
3, the parallel coiling of self-adhesive enameled wire is adopted in the parallel coiling of described enamelled wire, also can adopt the coiling that walks abreast of non-self-adhesive enameled wire.Adopt the parallel coiling of non-self-adhesive enameled wire can realize that also copper loss is little, power consumption is also low, and the read write line reading/writing distance is long etc.
4, described Φ 0.15mm line footpath copper enamelled wire also can adopt the copper enamelled wire in line footpath between the Φ 0.11-0.18mm.Adopt the copper enamelled wire in line footpath between the Φ 0.11-0.18mm can realize that also copper loss is little, power consumption is also low, and the read write line reading/writing distance is long etc.
Adopt RFID low frequency read write line coil antenna of the present invention, line has directly reduced, and copper loss is little, and power consumption is also low, and the read write line reading/writing distance is long, especially is suitable for portable RF ID low frequency read write line coil antenna.
Claims (5)
1. a rfid interrogator Antenna Design forms a hollow coil antenna with the coiling of copper enamelled wire, it is characterized in that,
Form a rectangle hollow coil antenna with two Φ 0.15mm line footpath parallel coilings of copper enamelled wire, two Φ 0.15mm line footpath copper enamelled wires are structurally parallel, and two terminations are arranged, and two the end of a thread of each termination weld together.
2. a kind of rfid interrogator Antenna Design according to claim 1 is characterized in that, wherein said copper enamelled wire also can be an aluminium copper-clad enamelled wire.
3. a kind of rfid interrogator Antenna Design according to claim 1 is characterized in that, wherein said rectangle hollow coil also can be circular hollow coil.
4. a kind of rfid interrogator Antenna Design according to claim 1 is characterized in that, the parallel coiling of self-adhesive enameled wire is adopted in the parallel coiling of wherein said enamelled wire, also can adopt the coiling that walks abreast of non-self-adhesive enameled wire.
5. a kind of rfid interrogator Antenna Design according to claim 1 is characterized in that, wherein said Φ 0.15mm line footpath copper enamelled wire also can adopt the copper enamelled wire in line footpath between the Φ 0.10-0.18mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201439416U CN201048162Y (en) | 2007-04-16 | 2007-04-16 | RFID reader-writer aerial design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201439416U CN201048162Y (en) | 2007-04-16 | 2007-04-16 | RFID reader-writer aerial design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201048162Y true CN201048162Y (en) | 2008-04-16 |
Family
ID=39300753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201439416U Expired - Fee Related CN201048162Y (en) | 2007-04-16 | 2007-04-16 | RFID reader-writer aerial design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201048162Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801099A (en) * | 2015-05-15 | 2015-07-29 | 巫立斌 | Water purifier capable of intelligently identifying filter element |
-
2007
- 2007-04-16 CN CNU2007201439416U patent/CN201048162Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801099A (en) * | 2015-05-15 | 2015-07-29 | 巫立斌 | Water purifier capable of intelligently identifying filter element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN DAFU NETWORK TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN CITY PEITIAN NETWORK TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Unit B 32 layer Nord Financial Center No. 1006 three road 518026 in Guangdong Province, Shenzhen City, Futian District Patentee after: Shenzhen Tat Fook Network Technology Co., Ltd. Address before: Unit B 32 layer Nord Financial Center No. 1006 three road 518026 in Guangdong Province, Shenzhen City, Futian District Patentee before: Shenzhen SCBD Network Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20140416 |