CN203520437U - Radio-frequency identification label and radio frequency identification system having same - Google Patents
Radio-frequency identification label and radio frequency identification system having same Download PDFInfo
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- CN203520437U CN203520437U CN201320574427.3U CN201320574427U CN203520437U CN 203520437 U CN203520437 U CN 203520437U CN 201320574427 U CN201320574427 U CN 201320574427U CN 203520437 U CN203520437 U CN 203520437U
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Abstract
The utility model discloses a radio-frequency identification label and a radio frequency identification system having the same. The radio frequency identification system comprises one or more the radio-frequency identification labels; the radio-frequency identification label comprises a base body, a label antenna, and a label chip; the label antenna and the label chip are arranged on the base body; the label antenna is provided with a central line and symmetrically arranged by a central line shaft; the label antenna comprises a first main radiator, a second main radiator, and third main radiators; the first main radiator and the second main radiator are in a block shape and arranged on the central line; the second main radiator is correspondingly arranged under the first main radiator; two third main radiators are in a block shape and respectively arranged on two sides of the first main radiator, and are symmetrically arranged relative to the central line shaft; the label chip is arranged on a feeding point portion. The radio-frequency identification label and the radio frequency identification system realize anti-metal characteristics of the RFID label, and also reduce the cost of the anti-metal RFID label.
Description
Technical field
The utility model belongs to radio-frequency (RF) identification (Radio Frequency Identification, RFID) technical field, the radio-frequency recognition system that relates to a kind of RFID tag and comprise this label.
Background technology
RFID technology has extensively been widely used in every field, for example, the fields such as sale of goods, transportation, production, waste management, postal tracking, aviation luggage management, vehicle toll management, traditional strip of paper shape code is because of shortcomings such as its storage capacity are little, can not rewrite, in identification field, it is slowly substituted by rfid system.
Rfid system normally comprises the RFID reader with antenna of a plurality of RFID labels, at least one and this RFID label communication and for controlling the calculation element of this RFID reader.Normally, RFID label is comprised of RFID label antenna and label chip; RFID reader comprises: for energy or information being provided to the transmitter of RFID label and for receiving identity and other information from RFID label; Calculation element is processed the information obtaining by RFID reader.The transmitter of RFID reader is via antenna output RF(Radio Frequency, radio frequency) signal, thus generating an electromagnetic field, this electromagnetic field makes RFID label return to the RF signal of carry information.
In RFID label, the radio wave signal that electromagnetism place produces is to be sent to label chip via its RFID label antenna, and the current signal of label chip is to be sent in space by RFID label antenna.But, common RFID label is when attaching is for example applied to, on the product of metal surface (car plate), due to the reflex of metal surface to incident electromagnetic wave, to have stronger opposite direction electromagnetic wave also through electronic tag, between metal and RFID label, produce thus closely coupling effect, the parameter such as input impedance, directional diagram, gain, bandwidth of RFID antenna is all changed, and then have a strong impact on the read distance of RFID reader to RFID label, even cannot read and cause antenna failure.
Therefore,, for avoiding the application of above down phenomenon limits RFID label under metal environment, in prior art, mainly by following several modes, improve the read situation of RFID label under metal environment.
The first is, by distance between the antenna in adjustment RFID label and metal surface.Distance between antenna and metal surface is adjusted to 0.25 λ
0when (operation wavelength in vacuum), the reflection wave that cause metal surface and work will be with superimposed with electromagnetic wave, and the performance of antenna will be kept even improving.But the method inevitably makes the thickness of RFID label and volume greatly increase.
The second is to fill high-k material between metal surface and the antenna of RFID label.This high-k material can be as substrate or the matrix of RFID label, thereby can shorten the electromagnetic wavelength between metal surface and antenna, and reflection wave is become contribute to the electromagnetic wave of the normal work of antenna.For example, EGB(Electromagnetic Band-Gap, electro-magnetic bandgap have been proposed in the world that application number is PCT/JP2007/001287) the RFID label of structure, this EGB structure is relative complex structurally, is difficult to processing and manufacturing.And this mode depends on high-k material, inevitably bring expensive problem.
In addition, absorbing material is also set in addition in RFID label to absorb the settling mode of reflection wave, for example, IFA(Inverted F Antenna, inverted-F antenna).But absorbing material absorbs the part electromagnetic wave that also absorbs the transmitting of RFID reader, causes energy to be easily dissipated in absorbing material, is not utilized well by RFID label (particularly passive tag types).And the setting of absorbing material also inevitably brings expensive problem.
In view of this, be necessary to propose a kind of novel anti-metal RFID label.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, the radio-frequency recognition system that a kind of RFID tag is provided and comprises this label.The utility model had both been realized the anti-metallic character of RFID label, can reduce again the cost of anti-metal RFID label.
It is as follows that the utility model solves the technical scheme that its technical matters just has:
RFID tag, is characterized in that comprising matrix, label antenna and label chip; Described label antenna and label chip are arranged on matrix; Label antenna is provided with center line, and symmetrical by centerline axis, and label antenna comprises the first main radiator, the second main radiator and the 3rd main radiator; The first main radiator, the second main radiator are bulk, are arranged on center line; The second main radiator correspondence is arranged on the below of the first main radiator; Two the 3rd main radiator are block, are separately positioned on the both sides of the first main radiator, and two the 3rd radiatoies are symmetrical about centerline axis; Label chip is arranged on feeding point place;
Between the first described main radiator and the second main radiator, be provided with the first straight feeder line, the first straight feeder line is positioned on center line, and on it, be provided with feeding point, feeding point is divided on the first straight feeder line part under part and the first straight feeder line by the first straight feeder line, on the first straight feeder line, part is connected with the first main radiator, and under the first straight feeder line, part is connected with the second main radiator;
Between the 3rd described radiator and the second main radiator, be provided with the second straight feeder line, one end of two second straight feeder lines is all connected with the second main radiator, and the other end is connected with two the 3rd radiatoies respectively;
In the first described straight feeder line and the region between the 3rd radiator, be provided with and add carrier strip, and two add carrier strip about centerline axis symmetry.
The described carrier strip that adds is connected with the first main radiator, or is connected with the second main radiator, or is arranged to be not connected with any one in the first main radiator, the second main radiator.
Described add carrier strip be shaped as rectangular block shape, trapezoidal square shape, square dice shape or U-shaped shape.When what add carrier strip, be shaped as rectangular block shape, trapezoidal square shape or square dice shape, its width is 0.2mm～13mm.When what add carrier strip, be shaped as U-shaped shape, the U-shaped opening respective side that adds carrier strip of U-shaped and the first straight feeder line be arranged in parallel, and two U-shaped openings that add carrier strip arrange mutually dorsad.
The length of the first described feeder line is 0.2mm～35mm;
The width of the first described feeder line is 0.2mm～13mm;
The width of the second described feeder line is 0.2mm～13mm;
It is described that to add distance between carrier strip and the first feeder line be 0.5mm～40mm;
Distance between the first described main radiator and the 3rd main radiator is 0.5mm～60mm;
The length of the first main radiator is 0.5mm～60mm;
The length of the 3rd main radiator is 0.5mm～60mm;
The first described feeder line and the width of the second feeder line are at 0.2mm～35mm;
The thickness range of described matrix is 0.01mm～60mm.
The first described main radiator, the second main radiator and the 3rd main radiator are rectangular block shape, trapezoidal square shape or square dice shape; And the area of the first main radiator, the second main radiator and the 3rd main radiator is within the scope of 50 square millimeters to 1200 square millimeters.
A radio-frequency recognition system, comprises one or more RFID tag.
The utility model beneficial effect is as follows:
The utility model designs by the dirigibility of the shape of label antenna, thereby makes its adjustable setting property strong, is easy to realize the impedance matching between label antenna and label chip under metal environment, and therefore, anti-metallic character is good; And, by setting, add carrier strip, form slot-coupled, be conducive to adjust impedance matching, can improve RFID label frequency span, improve its radiation characteristic.In addition, do not rely on thickness and/or the material of the matrix of RFID label, cost is low, and thickness is little and volume is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the RFID label that provides of the utility model the first embodiment.
Fig. 2 is the structural representation of the RFID label that provides of the utility model the second embodiment.
Fig. 3 is the structural representation of the RFID label that provides of the utility model the 3rd embodiment.
Fig. 4 is the structural representation of the RFID label that provides of the utility model the 4th embodiment.
In figure, label 10, matrix 20, the first main radiator 21, the 3rd main radiator 22, add the straight feeder line 26 of the straight feeder line 25, second of carrier strip 23, first, the second main radiator 27, center line 28, feeding point 29, label chip 30.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
That introduce below is several in a plurality of embodiment of the present utility model, aims to provide the basic understanding to this aspect, is not intended to confirm key of the present utility model or conclusive key element or limits claimed scope.Easily understand, according to the technical solution of the utility model, do not changing under connotation of the present utility model other implementations that one of ordinary skill in the art can propose mutually to replace.Therefore, following embodiment and accompanying drawing are only the exemplary illustrations to the technical solution of the utility model, and should not be considered as of the present utility model all or be considered as the restriction of technical solutions of the utility model or restriction.
embodiment 1
The structural representation of the RFID label providing according to the utility model the first embodiment is provided.In this embodiment, the RFID label antenna (as black part sub-pattern in figure) that label 10 comprises matrix 20, label chip 30 and formed by metal.RFID label antenna can be formed at (as black part sub-pattern in figure) on matrix 20 by method compositions such as printing, etchings, thereby forms flat plane antenna; Label chip 30 is placed in feeding point 29 places of RFID label antenna.
RFID label antenna has center line 28, and whole about center line 28 symmetries.For realizing more clearly, describe, as shown in Figure 1, the direction at center line 28 places is defined as to y direction (vertical direction), perpendicular to the direction of center line 28, be defined as x direction (horizontal direction).
First the structure of the label antenna of RFID shown in Fig. 1 is elaborated.
As shown in Figure 1, RFID label antenna comprises the first main radiator 21, the second main radiator 27, two the 3rd block main radiator 22.The first main radiator 21, the second main radiator 27 are coaxially arranged on center line 28; Two the 3rd main radiator 22 are arranged on the both sides of the first main radiator 21, and about central shaft 28 symmetries.The shape of the first main radiator 21, the second main radiator 27 and/or the 3rd main radiator 22 can be set to rectangle, the square shape such as trapezoidal or square, but its concrete shape is not limited by the utility model embodiment.By the first main radiator 21, the second main radiator 27 and/or the 3rd main radiator 22 are set to bulk, increase its effective radiating area larger, can effectively improve entire gain and the RCS(Radar Cross-Section of label antenna, RCS) value.
The first main radiator 21 is placed between two the 3rd main radiator 22, and therefore, between two the 3rd main radiator 22, spacing is at least greater than the width of the first main radiator 21, and the spacing between two the 3rd main radiator 22 arranges in 5mm to 100mm scope.
Between the first main radiator 21 and the second main radiator 27, be provided with the first straight feeder line 25, the first straight feeder line 25 is coaxial with center line 28, feeding point 29 is positioned on the first straight feeder line 25, therefore, feeding point 29 is divided into upper and lower two parts (upper part forms feeding point 29 with the interface of lower part) by the first straight feeder line 25.The upper part of the first straight feeder line 25 is directly connected with the first main radiator 21; The lower part of the first straight feeder line 25 is directly connected with the second main radiator 27.
In embodiment 3 (as shown in Figure 3), the upper part of the first straight feeder line 25 and lower part all can be arranged to trapezoidal shape, on trapezoidal shape under part and trapezoidal shape the bottom of part respectively with the first main radiator 21 and the direct combination of the second main radiator 27, on trapezoidal shape, upper base limit, upper base is partly oppositely arranged partly and under trapezoidal shape.
Continue as shown in Figure 1, the both sides of the first straight feeder line 25 are provided with two and add carrier strip 23 about center line 28 symmetries, adding carrier strip 23 is arranged between the first straight feeder line 25 and the 3rd main radiator 22, add between carrier strip 23 and the first straight feeder line 25 and form gap, this gap regulates setting in 0.5mm to 40mm scope.In this embodiment, two one end that add carrier strip 23 are all directly connected with the second main radiator 27, but in embodiment 2, two one end that add carrier strip are all directly connected (as shown in Figure 2) with the first main radiator 21; In embodiment 3 and 4, add carrier strip 23 and be not connected with any main radiator simultaneously, be arranged on independently between the first straight feeder line 25 and the 3rd main radiator 22 of corresponding side (as shown in Figure 3,4); In embodiment 4, each adds carrier strip 23 and is arranged to U-shaped (as shown in Figure 4), and carrier strip 23 horizontal directions (x direction) that add of each U-shaped are put, and its U-shaped opening arranges dorsad.
As shown in Figure 1, when adding carrier strip 23 and the first straight feeder line 25 and be rectilinear form, add between carrier strip 23 and the first straight feeder line 25 and be arranged in parallel.In embodiment 4, add carrier strip 23 and be arranged to U-shaped (as shown in Figure 4), the U-shaped opening respective side that adds carrier strip of U-shaped and the first straight feeder line 25 be arranged in parallel.
It should be noted that, above-mentioned " horizontal direction " and " vertical direction " are that the placement orientation with respect to this RFID label embodiment illustrated in fig. 1 defines, and they are relative concept.When the placement orientation of RFID label changes, it also changes thereupon relatively.
RFID label antenna also comprises two second straight feeder lines 26, article two, the second straight feeder line 26 is flatly arranged at respectively the both sides of the second main radiator 27 upper ends, for connecting the upper end of the second main radiator 27 and the lower end of the 3rd main radiator 22, the second straight feeder line 26 is in the setting of x direction level.
In actual applications, the impedance meter of label chip 30 is shown (A '+B ' j) ohm, and wherein, " A ' " represents the real part of impedance, and " B ' " represents the imaginary part of impedance; The label antenna impedance meter of RFID label is shown (A+Bj) ohm, and wherein, " A " represents the real part of impedance, and " B " represents the imaginary part of impedance.
For realizing RFID label antenna and the transmission of label chip ceiling capacity, must realize the conjugate impedance match of the two impedance as far as possible, be also (A '+B ' j)=(A+Bj).Therefore, must make to realize capacitive between this RFID label antenna and this label chip and mate, be also that the real part of both impedances equates substantially (A '=A); Also must make to realize perception between this RFID label antenna and this label chip 30 and mate, be also the imaginary part (B '=-B) substantially on the contrary of both impedances; When A '=A, B '=-B, realized impedance matching.
In the utility model, the real part size of the impedance of label antenna can be by the area of the first main radiator 21 is set, area and/or the shape of the area of the 3rd main radiator 22, the second main radiator 27 regulate, and the feature size that the imaginary part size of the impedance of RFID label antenna can be by arranging first straight feeder line the 25, second straight feeder line 26, add carrier strip 23 regulates.
In this embodiment, the area that the 3rd main radiator 22, the first main radiator 21 is set by adjusting is realized RFID label antenna and is mated (being also that A ' equals A substantially) with the basic capacitive between this label chip 30, for example, and at 50mm
2to 1200mm
2in scope, regulate the area that the 3rd main radiator 22, the first main radiator 21 are set (to be for example set to 600 mm
2) realize, yet for example, in 0.5mm to 60mm scope, regulate the first main radiator 21 is set realizes basic capacitive with distance between the 3rd main radiator 22 and mate; by regulating the first straight feeder line 25, the second straight feeder line 26, the shape facility size that adds carrier strip 23 realizes RFID label antenna mates (being also substantially equal-B of B ') with the basic perception between this label chip 30, for example, for example, by regulate the length (being set to 10mm) that the first straight feeder line 25 is set in 0.2mm to 13mm scope, thereby the spacing between the first main radiator 21 and the second main radiator 27 is set, or by regulating the first straight feeder line 25 be set in 0.2mm to 13mm scope, the width of the second straight feeder line 26 (such as being set to 6mm or 8mm), or by regulate the length (such as being set to 5mm or 8mm) that the vertical component that adds carrier strip 23 is set in 1mm to 30mm scope, or for example, by regulate the width range (being set to 2mm or 3mm) that the horizontal component (if being illustrated in figure 4 U-shaped) that adds carrier strip 23 is set in 0.5mm to 20mm scope, also the combination in any or by above four kinds of modes realizes label antenna jointly mates with the basic perception between this label chip 30.Therefore, when this RFID label antenna is applied to metal environment, the design flexibility of RFID label antenna increases greatly, along with environmental change can adjusted design RFID label antenna, be easy to make RFID label antenna to realize impedance matching with environmental change, eliminated the impact of metallic reflection on RFID label.
It should be noted that, when adjusting arranges the length of the first main radiator 21 and the 3rd main radiator 22, can be unequal at height vertically upward, the first main radiator 21 and the 3rd main radiator 22 can be distinguished its length degree of each self-regulation (its length is for example set in 5mm to 60mm scope), make the first main radiator 21 and the 3rd main radiator 22 flush or not flush by the horizontal direction perpendicular to center line 28 in upper end, thereby be conducive to adjust electric current, lead to resistance degree, realize trickle impedance adjustment.
Further, strong by RFID label antenna design flexibility of the present utility model in the situation that, the anti-metallic character of label 10 does not also rely on matrix 20, for example, matrix 20 no longer needs to select high-k material, and the thickness of matrix 20 does not need to be set to 0.25 λ yet
0, therefore, the cost of RFID label 10 and thickness can reduce greatly.In this embodiment, matrix 20 can alternative costs relatively high but FR4(epoxy glass fabric that radioresistance characteristic is good), the material such as tygon (polyethene) or polyester (polyester), also can the lower materials such as foam of alternative costs.The integral thickness of RFID label 10 also can be arranged on (for example 0.8mm) in 0.01mm to 60mm scope, and therefore, in anti-metal, thickness is relatively little.
embodiment 2
The structural representation of the RFID label providing according to the utility model the second embodiment is provided.As shown in Figure 2, RFID label 10 similarly comprises matrix 20, label chip 30 and is placed in the RFID label antenna on this matrix, and label chip 30 is placed in feeding point 29 places of label antenna.RFID label antenna comprises the first main radiator 21, the second main radiator 27, two the 3rd block main radiator 22.The first main radiator 21, the second main radiator 27 are coaxially arranged on center line 28; Two 22 two of the 3rd block main radiator are symmetrical arranged about center line 28; Between the first main radiator 21 and the second main radiator 27, be provided with the straight feeder line 25 of the first straight feeder line 25, the first coaxial with center line 28, feeding point 29 is positioned on the first straight feeder line 25; Between the second main radiator 27 and the 3rd main radiator 22, be provided with the second straight feeder line 26; Add the both sides that carrier strip 23 is arranged on the first straight feeder line 25, and be symmetrical arranged about center line 28; Label antenna than embodiment illustrated in fig. 11, its difference is mainly to add the difference that carrier strip 23 connects, and every one end that adds carrier strip 23 of linearity is connected in the first main radiator 21.
embodiment 3
The structural representation of the RFID label providing according to the utility model the 3rd embodiment is provided.As shown in Figure 3, RFID label 10 similarly comprises the first main radiator 21, the second main radiator 27, two the 3rd block main radiator 22.The first main radiator 21, the second main radiator 27 are coaxially arranged on center line 28; Two 22 two of the 3rd block main radiator are symmetrical arranged about center line 28; Between the first main radiator 21 and the second main radiator 27, be provided with the straight feeder line 25 of the first straight feeder line 25, the first coaxial with center line 28, feeding point 29 is positioned on the first straight feeder line 25; Between the second main radiator 27 and the 3rd main radiator 22, be provided with the second straight feeder line 26; Add the both sides that carrier strip 23 is arranged on the first straight feeder line 25, and be symmetrical arranged about center line 28.Than label antenna embodiment illustrated in fig. 1, its difference mainly comprises the connected mode difference of shape difference, the first straight feeder line 25 and second main radiator 27 of the first straight feeder line 25, wherein, the upper part of the first straight feeder line 25 and lower part are trapezoidal shape, and every adds carrier strip 23 relatively independently between the first straight feeder line 25 and the 3rd main radiator 22.
embodiment 4
The structural representation of the RFID label providing according to the utility model the 4th embodiment is provided.As shown in Figure 4, RFID label 10 similarly comprises the first main radiator 21, the second main radiator 27, two the 3rd block main radiator 22.The first main radiator 21, the second main radiator 27 are coaxially arranged on center line 28; Two 22 two of the 3rd block main radiator are symmetrical arranged about center line 28; Between the first main radiator 21 and the second main radiator 27, be provided with the straight feeder line 25 of the first straight feeder line 25, the first coaxial with center line 28, feeding point 29 is positioned on the first straight feeder line 25; Between the second main radiator 27 and the 3rd main radiator 22, be provided with the second straight feeder line 26; Add the both sides that carrier strip 23 is arranged on the first straight feeder line 25, and be symmetrical arranged about center line 28.Than label antenna embodiment illustrated in fig. 1, its difference is mainly to add the difference of carrier strip 23 shapes, in this embodiment, adds carrier strip 23 shape that takes the shape of the letter U, and carrier strip 23 levels (x direction) that add of each U-shaped are put, and the opening of its U-shaped arranges dorsad.
Above Fig. 2 is to describing no longer one by one with setting and the principle of work of the same section of RFID label embodiment illustrated in fig. 1 in RFID label embodiment illustrated in fig. 4, similarly, the RFID label of Fig. 2 to Fig. 4 embodiment can be applied in becket, and anti-metallic character is good.
The utility model provides a kind of radio-frequency (RF) identification (RFID) system simultaneously, it comprises the RFID label (10) described in a plurality of above embodiment, and this rfid system also comprises having the RFID reader of antenna and for controlling the calculation element of this RFID reader.The parts that RFID reader and calculation element can be realized completely for those skilled in the art, describe no longer one by one at this.
Above example has mainly illustrated RFID label of the present utility model and rfid system thereof.Although only some of them embodiment of the present utility model is described, those of ordinary skills should understand, and the utility model can be within not departing from its purport and scope be implemented with many other forms.Therefore, the example of showing and embodiment are regarded as illustrative and not restrictive, and in the situation that not departing from the utility model spirit as defined in appended each claim and scope, the utility model may be contained various modifications and replacement.
Claims (8)
1. RFID tag, is characterized in that comprising matrix, label antenna and label chip; Described label antenna and label chip are arranged on matrix; Label antenna is provided with center line, and symmetrical by centerline axis, and label antenna comprises the first main radiator, the second main radiator and the 3rd main radiator; The first main radiator, the second main radiator are bulk, are arranged on center line; The second main radiator correspondence is arranged on the below of the first main radiator; Two the 3rd main radiator are block, are separately positioned on the both sides of the first main radiator, and two the 3rd radiatoies are symmetrical about centerline axis; Label chip is arranged on feeding point place;
Between the first described main radiator and the second main radiator, be provided with the first straight feeder line, the first straight feeder line is positioned on center line, and on it, be provided with feeding point, feeding point is divided on the first straight feeder line part under part and the first straight feeder line by the first straight feeder line, on the first straight feeder line, part is connected with the first main radiator, and under the first straight feeder line, part is connected with the second main radiator;
Between the 3rd described radiator and the second main radiator, be provided with the second straight feeder line, one end of two second straight feeder lines is all connected with the second main radiator, and the other end is connected with two the 3rd radiatoies respectively;
In the first described straight feeder line and the region between the 3rd radiator, be provided with and add carrier strip, and two add carrier strip about centerline axis symmetry.
2. RFID tag as claimed in claim 1, adds carrier strip and is connected with the first main radiator, or be connected with the second main radiator described in it is characterized in that, or is arranged to be not connected with any one in the first main radiator, the second main radiator.
3. RFID tag as claimed in claim 1, what described in it is characterized in that, add carrier strip is shaped as rectangular block shape, trapezoidal square shape, square dice shape or U-shaped shape.
4. RFID tag as claimed in claim 3, what described in it is characterized in that, add carrier strip is shaped as rectangular block shape, trapezoidal square shape or square dice shape, and its width is 0.2mm～13mm.
5. RFID tag as claimed in claim 3, what described in it is characterized in that, add carrier strip is shaped as U-shaped shape, and the U-shaped opening respective side that adds carrier strip of U-shaped and the first straight feeder line be arranged in parallel, and two U-shaped openings that add carrier strip arrange mutually dorsad.
6. RFID tag as claimed in claim 1, is characterized in that:
The length of the first described feeder line is 0.2mm～35mm;
The width of the first described feeder line is 0.2mm～13mm;
The width of the second described feeder line is 0.2mm～13mm;
It is described that to add distance between carrier strip and the first feeder line be 0.5mm～40mm;
Distance between the first described main radiator and the 3rd main radiator is 0.5mm～60mm;
The length of the first main radiator is 0.5mm～60mm;
The length of the 3rd main radiator is 0.5mm～60mm;
The first described feeder line and the width of the second feeder line are at 0.2mm～35mm;
The thickness range of described matrix is 0.01mm～60mm.
7. RFID tag as claimed in claim 1, is characterized in that:
The first described main radiator, the second main radiator and the 3rd main radiator are rectangular block shape, trapezoidal square shape or square dice shape; And the area of the first main radiator, the second main radiator and the 3rd main radiator is within the scope of 50 square millimeters to 1200 square millimeters.
8. a radio-frequency recognition system, is characterized in that comprising one or more RFID tag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574427.3U CN203520437U (en) | 2013-09-16 | 2013-09-16 | Radio-frequency identification label and radio frequency identification system having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574427.3U CN203520437U (en) | 2013-09-16 | 2013-09-16 | Radio-frequency identification label and radio frequency identification system having same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203520437U true CN203520437U (en) | 2014-04-02 |
Family
ID=50379333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320574427.3U Expired - Fee Related CN203520437U (en) | 2013-09-16 | 2013-09-16 | Radio-frequency identification label and radio frequency identification system having same |
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| Country | Link |
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| CN (1) | CN203520437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559533A (en) * | 2013-09-16 | 2014-02-05 | 杭州电子科技大学 | Radio frequency identification tag and radio frequency identification system comprising the same |
| CN114039196A (en) * | 2021-10-28 | 2022-02-11 | 深圳市英佳创电子科技有限公司 | High-performance 4G antenna |
-
2013
- 2013-09-16 CN CN201320574427.3U patent/CN203520437U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103559533A (en) * | 2013-09-16 | 2014-02-05 | 杭州电子科技大学 | Radio frequency identification tag and radio frequency identification system comprising the same |
| CN103559533B (en) * | 2013-09-16 | 2016-04-20 | 杭州电子科技大学 | A kind of RFID tag and comprise the radio-frequency recognition system of this label |
| CN114039196A (en) * | 2021-10-28 | 2022-02-11 | 深圳市英佳创电子科技有限公司 | High-performance 4G antenna |
| CN114039196B (en) * | 2021-10-28 | 2024-02-09 | 深圳市英佳创电子科技有限公司 | High-performance 4G antenna |
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