CN202102475U - Ultrahigh frequency anti metal electronic label structure with anti-tearing function - Google Patents
Ultrahigh frequency anti metal electronic label structure with anti-tearing function Download PDFInfo
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- CN202102475U CN202102475U CN2011201910881U CN201120191088U CN202102475U CN 202102475 U CN202102475 U CN 202102475U CN 2011201910881 U CN2011201910881 U CN 2011201910881U CN 201120191088 U CN201120191088 U CN 201120191088U CN 202102475 U CN202102475 U CN 202102475U
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- metal
- main substrate
- label
- ultrahigh frequency
- submounts
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Abstract
An ultrahigh frequency anti metal electronic label structure with the anti-tearing function relates to the radio frequency identification technology field. The structure comprises a label body which is composed of a rectangular main substrate, a paster radiation source arranged on the main substrate, and a metal grounding backboard arranged below the main substrate. The structure is characterized in that a rectangular open hole is arranged on the center of one end of the label body, a label core and a daughter substrate is arranged on the center of the rectangular open hole. The opposite edges of the daughter substrate are respectively connected with the main substrate through two metal lines in a bridging way, the metal line extending toward the edge of the main substrate is connected with a metal microstrip line, thus two hollowing U-shaped slottings are formed between the daughter substrate and the label body. The label core is electrically connected with the metal microstrip line and the paster radiation source through the two metal lines. Compared with the prior art, the structure is provided with the anti-tearing function, is high in safety and reliability, is convenient for installing, and is small in volume and low in cost.
Description
Technical field
The utility model relates to RF identification, and (Radio Frequency Identification, RFID) technical field particularly have the Electronic Tag Structure of the anti-metal of passive ultra-high frequency (UHF) of tamper function.
Background technology
RFID is the abbreviation of the English (Radio Frequency Identification) of REID; REID is a kind of automatic identification technology that begins to rise the nineties in 20th century, and REID is the technology that the information utilizing radiofrequency signal to pass through space coupling (alternating magnetic field or electromagnetic field) the contactless information transmission of realization and pass through to be transmitted reaches identifying purpose.
Rfid system is through the automatic recognition objective object of radiofrequency signal and obtain related data, and identification work need not manual intervention.Wireless version as bar code; The RFID label has the not available waterproof of bar code, antimagnetic, high temperature resistant, long service life, read that distance is big, data can encrypt, store that data capacity is bigger, the canned data change waits advantage freely on the label; The RFID technology by universally acknowledged be one of big important technologies in this century ten, at industry-by-industries such as industry-by-industry such as production, retail, logistics, traffic wide application prospect is arranged.
The RFID label is made up of with the label antenna that is connected with chip label chip.In the application of quite a few super high frequency radio frequency identification, need label be pasted on metal object surface, such as: automobile, container, article pallet etc.Common label can't operate as normal on the metal surface, so need special label antenna design, is called anti-metal antenna.
In the prior art, the design of anti-metal tag does not have anti-disassembling function.After anti-disassembling function promptly was when label and the object that originally adheres to this label separates, label ceased to be in force automatically, and one tears open destroyedly, prevents that label is by illegal second use.In fact; The tamper metal label in the management of the marketing channel of automobile and maintenance management field, the supervision field of container etc.; Bigger actual demand is all arranged; And all also do not find suitable solution in the existing ultrahigh frequency product, restricted the range of application of ultrahigh frequency anti-metal tag to a certain extent.
Summary of the invention
To the deficiency that exists in the above-mentioned prior art, the purpose of the utility model provides a kind of ultrahigh frequency anti-metal electronic tag structure with tamper function.It has anti-disassembling function, and safe reliability is high, and the while is easy for installation, volume is little, cost is low.
In order to realize the foregoing invention purpose, the technical scheme of the utility model realizes as follows:
Ultrahigh frequency anti-metal electronic tag structure with tamper function, it comprises by the main substrate of rectangle, the label body that is positioned at the paster radiation source on the main substrate and places the metal ground connection backboard of main substrate below to form.Its design feature is that the center of said label body one end is provided with rectangle opening, rectangle opening central authorities placement label chip and submounts thereof.Both sides relative on the submounts connect through two wires bars and main substrate bridging respectively, and a wires bar that stretches to the main substrate edge is connected with metal micro-strip line, make the U type fluting that forms two hollow outs between submounts and the label body.Label chip is connected with metal micro-strip line and paster radiation source formation electricity through two wires bars.
In above-mentioned ultrahigh frequency anti-metal electronic tag structure, the upper and lower faces of said main substrate and submounts all is provided with the macromolecular material protective layer.
In above-mentioned ultrahigh frequency anti-metal electronic tag structure, two pins of said label chip are connected with the two ends of metal micro-strip line respectively.
The utility model is owing to adopted said structure, and the submounts of adhesive label chip only forms weak bridging relation through two wires bars and main substrate.When the label construction that combines with object to be identified was uncovered by other people violence, metal wire made the submounts of adhesive label chip separate with main substrate because unbalance stress very easily ruptures, and just chip separates with antenna, tears destroyed effect open thereby reach.Compare with prior art, the utility model has solved the demand of ultrahigh frequency metal label for the tamper characteristic, owing to need not use the insulating material of expensive absorbing material or thickening, has advantages such as easy for installation, that volume is little, cost is low simultaneously.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Fig. 1 is the vertical view of the utility model label construction;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the impedance plot of the utility model metal micro-strip line among the embodiment;
Fig. 4 is the power reflection damage curve figure of the utility model metal micro-strip line and label chip among the embodiment.
Embodiment
Referring to Fig. 1 and Fig. 2, the utility model comprises by the main substrate 1 of rectangle, the label body that is positioned at the paster radiation source 3 on the main substrate 1 and places the metal ground connection backboard 4 of main substrate 1 below to form.The center of label body one end is provided with rectangle opening, and label chip 5 and submounts 7 thereof are placed by rectangle opening central authorities.Both sides relative on the submounts 7 are connected with the main substrate Bridge 1 through two wires bars 8 respectively, and a wires bar 8 that stretches to main substrate 1 edge is connected with metal micro-strip line 2, make the U type fluting 6 that forms two hollow outs between submounts 7 and the label body.Label chip 5 is connected with metal micro-strip line 2 and paster radiation source 3 formation electricity through two wires bars 8 respectively.The upper and lower faces of main substrate 1 and submounts 7 all is provided with the macromolecular material protective layer.Two pins of label chip 5 are connected with the two ends of metal micro-strip line 2 respectively.
Passive ultrahigh frequency electronic tag need obtain energy through the electromagnetic wave that the rectification reader sends and accomplish communication.In general the input impedance of electronic label chip is plural number, and is capacitive, and this complex impedance that just needs label antenna to have perception forms conjugate impedance match with it, thereby reaches the power transfer maximization.
The ultrahigh frequency label chip 5 that the utility model adopts is 28-j152 Ω in the impedance of 922.5MHz frequency; Impedance curve when metal micro-strip line 2 is attached to the metal surface is as shown in Figure 3; Solid line is represented metal micro-strip line 2 impedance real parts with change of frequency trend, and dotted line representes that metal micro-strip line 2 imaginary impedance are with change of frequency trend; Curve display is at the 922.5MHz frequency, and antenna impedance is 30+148j Ω.The power reflection damage curve is as shown in Figure 4, and frequency is in 915MHz ~ 928MHz scope, and reflection loss all is lower than-10dBm, reaches valley-22dBm at the 922.5MHz frequency.But the input impedance of metal micro-strip line 2 can realize matched well with this label chip impedance at Chinese super high frequency radio frequency identification frequency band range 920MHz ~ 925MHz in the knowledge capital utility model, reaches good readwrite performance.
The utility model uses bonding agent with metal ground connection backboard 4 and target object surface combination, in the process of violence perk in actual use; Metal wire 8 receives stress and very easily ruptures; Can on metal wire 8, beat via hole when being necessary, guarantee that main substrate 1 is connected with the weakness of submounts 7, for the purpose of safe; Can use epoxy resin to cover the whole submounts 7 that comprises label chip 5, guarantee after label construction successfully separates not by second use.
Such scheme is a kind of embodiment of the utility model; Multiple different application scheme can be arranged meeting under the characteristic of the utility model; As long as but these application schemes meet the characteristic of the utility model, all should belong to the rights protection scope of the utility model.
Claims (3)
1. the ultrahigh frequency anti-metal electronic tag structure that has the tamper function; It comprises by the main substrate of rectangle (1), the label body that is positioned at the paster radiation source (3) on the main substrate (1) and places the metal ground connection backboard (4) of main substrate (1) below to form; It is characterized in that; The center of said label body one end is provided with rectangle opening; Label chip (5) and submounts (7) thereof are placed by rectangle opening central authorities; Submounts (7) is gone up relative both sides and is connect through two wires bars (8) and main substrate (1) bridging respectively; A wires bar (8) that stretches to main substrate (1) edge is connected with metal micro-strip line (2), makes the U type fluting (6) that forms two hollow outs between submounts (7) and the label body, and label chip (5) is connected with metal micro-strip line (2) and paster radiation source (3) formation electricity through two wires bars (8) respectively.
2. the ultrahigh frequency anti-metal electronic tag structure with tamper function according to claim 1 is characterized in that the upper and lower faces of said main substrate (1) and submounts (7) all is provided with the macromolecular material protective layer.
3. the ultrahigh frequency anti-metal electronic tag structure with tamper function according to claim 1 and 2 is characterized in that, two pins of said label chip (5) are connected with the two ends of metal micro-strip line (2) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201910881U CN202102475U (en) | 2011-06-09 | 2011-06-09 | Ultrahigh frequency anti metal electronic label structure with anti-tearing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201910881U CN202102475U (en) | 2011-06-09 | 2011-06-09 | Ultrahigh frequency anti metal electronic label structure with anti-tearing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102475U true CN202102475U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201910881U Expired - Lifetime CN202102475U (en) | 2011-06-09 | 2011-06-09 | Ultrahigh frequency anti metal electronic label structure with anti-tearing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819761A (en) * | 2011-06-09 | 2012-12-12 | 北京同方微电子有限公司 | Anti-tamper ultrahigh frequency metal-resistant electronic tag structure |
| CN102821570A (en) * | 2012-07-31 | 2012-12-12 | 深圳光启创新技术有限公司 | Electronic apparatus and housing thereof |
| CN102821565A (en) * | 2012-07-31 | 2012-12-12 | 深圳光启创新技术有限公司 | Electronic equipment and enclosure thereof |
-
2011
- 2011-06-09 CN CN2011201910881U patent/CN202102475U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819761A (en) * | 2011-06-09 | 2012-12-12 | 北京同方微电子有限公司 | Anti-tamper ultrahigh frequency metal-resistant electronic tag structure |
| CN102821570A (en) * | 2012-07-31 | 2012-12-12 | 深圳光启创新技术有限公司 | Electronic apparatus and housing thereof |
| CN102821565A (en) * | 2012-07-31 | 2012-12-12 | 深圳光启创新技术有限公司 | Electronic equipment and enclosure thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120104 Effective date of abandoning: 20160406 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |