CN202373688U - External antenna system of radio frequency identification reader - Google Patents
External antenna system of radio frequency identification reader Download PDFInfo
- Publication number
- CN202373688U CN202373688U CN2011204466623U CN201120446662U CN202373688U CN 202373688 U CN202373688 U CN 202373688U CN 2011204466623 U CN2011204466623 U CN 2011204466623U CN 201120446662 U CN201120446662 U CN 201120446662U CN 202373688 U CN202373688 U CN 202373688U
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- CN
- China
- Prior art keywords
- external antenna
- case
- radio frequency
- frequency identification
- cell phone
- 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 utility model relates to an antenna device of an identification system, in particular to an external antenna system of a radio frequency identification reader. The external antenna system of the radio frequency identification reader is applied to a cell phone, and comprises a cell phone case, wherein the cell phone case comprises a surface case and a back case, and an external antenna is arranged on the inner surface of the back case, and is arranged on the edge of the inner surface of the case. The external antenna is arranged on the case of the cell phone, and the size and the shape of the traditional cell phone case are fully utilized by the external antenna, so that the external antenna has the characteristics of compact structure and reasonable layout through the skillful structural design, and can generate enough magnetic field, so that the antenna generates higher transmission frequency and establishes data communications with an electronic tag; and a high-frequency signal has strong penetrability, so that the read and write distance and communication quality of an RFID (radio frequency identification device) reader chip and the electronic tag are strengthened.
Description
Technical field
The utility model relates to a kind of antenna assembly of recognition system, particularly a kind of external antenna system that is applied in the wireless radio frequency identification reader-writer on the mobile phone.
Background technology
Technical scheme false proof on the current market is a lot, like laser anti-counterfeit, printing ink is false proof, digital phone is false proof and SMS is false proof etc.Recent study shows that adopting the anti-fake scheme of RFID (radio frequency identification) electronic tag is the false proof means of highly effective high-tech.What the RFID electronic tag was false proof to the effect that sticks the RFID electronic tag to article, and this electronic tag is being stored the anti-fake certificate information of the unique identifier of each commodity, the commodity relevant information of not encrypting or encryption.Read-write machine dedicated through carrying out exchanges data with electronic tag, get final product the data of electron gain label.After the read-write machine dedicated data that obtain electronic tag; Can directly obtain the information such as type, coding, manufacturer, date of manufacture of these commodity through identification code and related data, also can be through the true and false wired, Wi-Fi is inquired about these commodity from database.But because special-purpose read-write equipment cost is high, volume is big, makes the popularization difficulty of RFID electronic tag Antiforge system very big.Along with the development of mobile communication technology, combine special-purpose read-write equipment of RFID and mobile phone, make common mobile phone have the function of read-write RFID electronic tag; Promptly be designed to the RFID chip to special-purpose read-write equipment; And said RFID chip is integrated on the SIM of GSM or CDMA mobile phone, be provided with external antenna at the inner surface of phone housing, be integrated with the rfid interrogator chip on external antenna and the SIM body and be electrically connected; The rfid interrogator chip directly transmits and receives through the signal that external antenna is realized; Avoided the influence of battery of mobile phone to signal, but the external antenna that uses at present is generally less, structure and layout are unreasonable; The effect of emission and acknowledge(ment) signal is relatively poor, the communication distance and the communication quality of weakened to a certain extent rfid interrogator chip and electronic tag.
The utility model content
The purpose of the utility model is to overcome the above-mentioned deficiency of prior art, and a kind of external antenna system of wireless radio frequency identification reader-writer is provided.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of external antenna system of wireless radio frequency identification reader-writer comprises phone housing, and said phone housing comprises face-piece and shell on the back, and said shell on the back inner surface is provided with external antenna, and said external antenna is arranged on the edge of shell inner surface.
In the antenna system of above-mentioned wireless radio frequency identification reader-writer, said external antenna is arranged on the edge of shell inner surface, along shell inner surface edge contour looping antenna.
In the antenna system of above-mentioned wireless radio frequency identification reader-writer, said external antenna is a stripline antenna.
The antenna system of the wireless radio frequency identification reader-writer of the utility model is through being provided with external antenna on the inner surface of mobile phone shell on the back; Said external antenna is the stripline antenna that is arranged on the shell inner surface edge; Constitute the loop aerial of certain width along the inner surface edge profile of housing; According to vortex principle; The electromagnetic field of its generation is concentrated in the relative small range, thereby has enough intensity and make antenna produce higher tranmitting frequency, has strengthened the communication quality of rfid interrogator chip and electronic tag.
The beneficial effect of the utility model is:The utility model is provided with external antenna through the shell at mobile phone; External antenna has made full use of the size and dimension of existing phone housing; Through structural design cleverly, make external antenna both have compact conformation, rationally distributed characteristics, can produce enough magnetic field again and make antenna produce higher tranmitting frequency and electronic tag to set up data communication; High-frequency signal has very strong penetrability, has strengthened the reading/writing distance and the communication quality of rfid interrogator chip and electronic tag.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the structural representation of the utility model and SIM
Mark among the figure: 1-shell on the back, 2-external antenna, 3-SIM card, 4-RFID read write line chip, 5-battery.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment 1
Shown in accompanying drawing 1; The antenna system of the wireless radio frequency identification reader-writer of present embodiment; Comprise phone housing, said phone housing comprises face-piece and shell on the back 1, and said shell on the back 1 inner surface is provided with external antenna 2; External antenna 2 is arranged on the edge of said shell on the back 1 inner surface, along shell inner surface edge contour looping antenna.
Shown in accompanying drawing 2; Be followed successively by the shell on the back 1 of SIM 3, battery 5, phone housing from inside to outside; Be integrated with rfid interrogator chip 4 on the SIM cards of mobile phones 3; The inner surface of shell on the back 1 is provided with external antenna 2, and integrated rfid interrogator chip 4 is electrically connected on said external antenna 2 and the SIM body, and rfid interrogator chip 4 directly transmits and receives through the signals that external antenna 2 is realized.The mobile phone that rfid interrogator chip and external antenna are installed is through external antenna image data signal; Again with the IC chip that sends to SIM after the data processing; Both can on mobile phone, show or store; Also can send to authentication center and realize judgement, and then realize the judgement of article genuine-fake the information true and false in the electronic tag through mobile phone.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (2)
1. the external antenna system of a wireless radio frequency identification reader-writer comprises phone housing, and said phone housing comprises face-piece and shell on the back, and said shell on the back inner surface is provided with external antenna, it is characterized in that: said external antenna is arranged on the edge of shell inner surface.
2. the external antenna system of wireless radio frequency identification reader-writer according to claim 1, it is characterized in that: said external antenna is a stripline antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204466623U CN202373688U (en) | 2011-11-12 | 2011-11-12 | External antenna system of radio frequency identification reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204466623U CN202373688U (en) | 2011-11-12 | 2011-11-12 | External antenna system of radio frequency identification reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202373688U true CN202373688U (en) | 2012-08-08 |
Family
ID=46597382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204466623U Expired - Fee Related CN202373688U (en) | 2011-11-12 | 2011-11-12 | External antenna system of radio frequency identification reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202373688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488964A (en) * | 2013-09-26 | 2014-01-01 | 章伟 | Auxiliary reading and writing assembly part of RFID handheld reader and reading and writing method of RFID handheld reader |
-
2011
- 2011-11-12 CN CN2011204466623U patent/CN202373688U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103488964A (en) * | 2013-09-26 | 2014-01-01 | 章伟 | Auxiliary reading and writing assembly part of RFID handheld reader and reading and writing method of RFID handheld reader |
| CN103488964B (en) * | 2013-09-26 | 2017-06-06 | 章伟 | Auxiliary read-write assembly parts and its read method of a kind of RFID handheld readers |
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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: 20120808 Termination date: 20181112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |