CN201717362U - Radio frequency identification tag antenna - Google Patents
Radio frequency identification tag antenna Download PDFInfo
- Publication number
- CN201717362U CN201717362U CN2009202009664U CN200920200966U CN201717362U CN 201717362 U CN201717362 U CN 201717362U CN 2009202009664 U CN2009202009664 U CN 2009202009664U CN 200920200966 U CN200920200966 U CN 200920200966U CN 201717362 U CN201717362 U CN 201717362U
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- welding position
- tag antenna
- radio frequency
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Abstract
The utility model relates to a radio frequency identification tag antenna. An IC welding position is arranged at the central position of a substrate of the tag antenna, two bent micro-strip lines are respectively connected with the IC welding position, the two micro-strip lines at two ends of the IC welding position are symmetrically connected together in series in an end-to-end manner, and a straight micro-strip line is arranged between the two bent micro-strip lines in series connection. The radio frequency identification tag antenna is simple in structure and easy in manufacturing process, can flexibly match with tag chips produced by different national and international manufacturers, and is applicable to logistics, book management, archive management, door control systems, road vehicle management, railway vehicle management, aviation passenger and cargo transportation management, animal and plant breeding management, safety identification, counterfeiting identification and the like.
Description
Technical field
The utility model belongs to antenna technical field, relates to a kind of RFID antenna
Background technology
Over advancing year, automatic identifying method is in many service fields, aspect sale of goods and the logistics branch wing, in commercial department, obtained popularizing fast and popularization in the manufacturing enterprise and the material field of circulation.
In the past few years, bar code---paper tape can not satisfy people's demand under increasing situation.Though bar code is very cheap, its weak point is that the size of storage capacity is to rewrite.
A kind of technical best solution be with storage in a silicon.In daily life, the IC-card (phone IC-card, bank card etc.) with contact row is the most general structure of electric data carrier.Yet concerning IC-card, under many situations, the connection of mechanical contact is insecure.Data between the reader under data medium and one are carried out non-contact transmission with much flexible, according to the energy and the data transmission method that use, we are called radio-frequency recognition system (RFID Frequency Identification) to non-contacting recognition system.Therefore, RFID is that a kind of radio wave that utilizes is read and write recording medium, with radio-frequency technique and the IC-card technology is combined and it is remote to carry out, the technology of moving-target, wireless identification.
Rfid system is in concrete application process, and according to different application purposes and applied environment, the composition of system can be different, but with regard to its operation principle, the general complete response device of system, reader and PC are formed.Transponder is placed on the object that will discern, can send and receive information, and can do processing such as read/write according to the operational order that receives; Reader is to gather transponder information and transponder information is sent the device of operational order, and the order of sending comprises read/write, selects order such as cancellation selections grade.
Antenna is that a key in radio communication and the radar system loses as the equipment of a kind of reception and launching electromagnetic wave, and it is the interface of free space and transmission, becomes " electronic eyes " or " electronic ear " usually.The effect of antenna in various radiotechnics equipment is substantially the same.Any radiotechnics equipment all transmits signal by electromagnetic wave, and it must have the energy radiation or receive electromagnetic device, and antenna is exactly this device, so the effect of antenna at first is exactly radiation and receives electromagnetic wave.Based on such prerequisite, since the generation of wireless communication technique, antenna just has been born thereupon.
From the simplest wire antenna, surface antenna, antenna technology has experienced innovation for several times.Along with the expansion in antenna applications field, being showing improvement or progress day by day of antenna mechanics of communication, people are more and more higher to the requirement of antenna; Operating distance is far away as much as possible, and it is big as much as possible to gain, and power consumption is as much as possible little, and power is high as much as possible, and polarization is coupling or the like as much as possible.Invented technology such as microstrip antenna and antenna array in recent years again, made antenna be applied in more field, intelligence communication field particularly is such as TD-SCDMA.
Electronic tag prints on paper or the plastic film for the label that reduces cost often adopts, and label is attached to and means to have different resonance frequencys on the different objects like this.The environment of periphery is also bigger to the resonance frequency influence of electronic tag, also having the frequency range of the electronic tag of UHF is 860MHz-960MHz, frequency band than broad, guarantee that country variant uses certain frequency band wherein, and label can use in any country, and the electronic label antenna that for this reason designs the broadband is very necessary.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of simple in structure, and manufacture process is easy, pollution is few, changes a kind of RFID antenna that can adjust antenna impedance and antenna pattern on a large scale by adjusting the antenna structure parameter
The technical solution of the utility model is:
A kind of substrate center position of RFID antenna is provided with the IC welding position, article two, the microstrip line of bending is connected with the IC welding position respectively, being serially connected of the microstrip line symmetry at two ends, IC welding position, described serial connection are meant that two microstrip lines connect by the bending head and the tail; Straight line shaped microstrip line is arranged in the middle of the described bending shaped microstrip line; The utility model is simple in structure, and is easy to manufacture, can mate the label chip that domestic and international different vendor produces flexibly.Be applicable to logistics, taking care of books, file administration, gate control system, road vehicle management, rolling stock management, aviation passenger and freight transportation management, animals and plants aquaculture management, security identification, anti-counterfeiting mark etc.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is Fig. 1 longitdinal cross-section diagram.
Embodiment
Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.
As shown in Figure 1, 2, substrate 6 centers of RFID antenna of the present utility model are provided with IC welding position 7, and microstrip line 1,2,3,4,9,10 and folding line 8 serve as that symmetry connects with the center of IC welding position 7 respectively.Also have straight line shaped microstrip line 5 on the substrate, above-mentioned microstrip line and folding line are the center left-right symmetric with linear microstrip line 5.
The spacing of the height of linear microstrip line 5 and microstrip line 1,2,3,4,8,9,10 is determined by the impedance parameter of described label IC and the directional diagram of described label antenna.
Change the width of microstrip line 1 and the position of height and linear microstrip line 5 and can change antenna impedance.
It should be noted that at last, above example is only unrestricted in order to technical scheme of the present invention to be described, those of ordinary skill in the art should be appreciated that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the claim scope of the present invention.
Claims (1)
1. RFID antenna, it is characterized in that the substrate center position of described label antenna is provided with the IC welding position, two microstrip lines are connected with the IC welding position respectively, being serially connected of the microstrip line symmetry at two ends, IC welding position, described serial connection are meant that two microstrip lines connect from beginning to end; Straight line shaped microstrip line is arranged in the middle of two microstrip lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202009664U CN201717362U (en) | 2009-11-20 | 2009-11-20 | Radio frequency identification tag antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202009664U CN201717362U (en) | 2009-11-20 | 2009-11-20 | Radio frequency identification tag antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201717362U true CN201717362U (en) | 2011-01-19 |
Family
ID=43463368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202009664U Expired - Fee Related CN201717362U (en) | 2009-11-20 | 2009-11-20 | Radio frequency identification tag antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201717362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093606A (en) * | 2021-03-31 | 2021-07-09 | 深圳市一九智能电子科技有限公司 | Equipment control circuit |
-
2009
- 2009-11-20 CN CN2009202009664U patent/CN201717362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113093606A (en) * | 2021-03-31 | 2021-07-09 | 深圳市一九智能电子科技有限公司 | Equipment control circuit |
| CN113093606B (en) * | 2021-03-31 | 2022-04-22 | 深圳市一九智能电子科技有限公司 | Equipment control circuit |
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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: 20110119 Termination date: 20111120 |