CN205050172U - Coupling capacitor RFID tag - Google Patents
Coupling capacitor RFID tag Download PDFInfo
- Publication number
- CN205050172U CN205050172U CN201520397384.5U CN201520397384U CN205050172U CN 205050172 U CN205050172 U CN 205050172U CN 201520397384 U CN201520397384 U CN 201520397384U CN 205050172 U CN205050172 U CN 205050172U
- Authority
- CN
- China
- Prior art keywords
- antenna
- coupling
- booster
- rod
- gain
- 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
Links
- 238000010168 coupling process Methods 0.000 title claims abstract description 57
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 57
- 230000008878 coupling Effects 0.000 title claims abstract description 56
- 239000003990 capacitor Substances 0.000 title abstract 2
- 239000000758 substrate Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 description 4
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Support Of Aerials (AREA)
Abstract
本实用新型公开了一种插合耦合电容RFID标签,包括有第一天线和第二天线，所述第一天线与第二天线之间距离可伸缩调节；其阅读距离长，经测试其阅读距离可达11-13m；可拉伸，即长度可调，其可用于宽度基本一定，但长度不定的成套包装上，具有极大的实用价值、各项天线性能好、驻波比小、回波损耗低、增益高且具备全向性。
The utility model discloses an interlocking coupling capacitor RFID tag, comprising a first antenna and a second antenna, wherein the distance between the first antenna and the second antenna is telescopically adjustable; the reading distance is long, and after testing, the reading distance can reach 11-13m; the tag is stretchable, that is, the length is adjustable, and the tag can be used for a set of packages with a basically fixed width but an indefinite length, and has great practical value, good antenna performance, a small standing wave ratio, a low return loss, a high gain, and omnidirectionality.
Description
Technical field
The utility model relates to a kind of coupling capacitance RFID label tag.
Background technology
At present, radio-frequency (RF) identification and RFID(RadioFrequencyIdentification) technology, also known as electronic tag, radio frequency identification, a kind of read and write related data by radio signals identification specific objective, and without the need to setting up the communication technology of machinery or optical contact between recognition system and specific objective.Conventional passive RFID has low frequency (125k ~ 134.2K), high frequency (13.56Mhz), ultrahigh frequency (860-960MHz).RFID label antenna is as the important component part of rfid system, and its performance will affect the effect and quality of whole rfid system greatly.The principal element affecting RFID antenna performance comprises the size of antenna, working frequency range, impedance and gain etc.General conventional RFID antenna often adopts bending line style dipole form, is convenient to reduction antenna size and antenna processing.The type antenna radiation pattern is perpendicular to antenna surface, is attached at target object tapered outer surface when therefore using; When the length of object changes thereupon, require that antenna also changes thereupon, its gain also changes thereupon, therefore needs to design a antenna that can change according to length, in addition, and its every antenna performance also demand fulfillment requirement.
Utility model content
The purpose of this utility model is to overcome above-described shortcoming, provides a kind of coupling capacitance RFID label tag.
For achieving the above object, concrete scheme of the present utility model is as follows: comprise substrate, and be located at substrate plugs together coupling capacitance RFID label antenna, described label antenna includes the first antenna and the second antenna, the scalable adjustment of spacing of described first antenna and the second antenna;
Described second antenna is provided with dielectric-slab, and dielectric-slab is provided with label chip, and described label chip and the first antenna and the second antenna are electrically connected;
First antenna includes strip the first noumenon, one end of described the first noumenon is provided with the first gain bar, the free end of described first gain bar is provided with the first gain antenna of an arc, also include two coupling slots, described two coupling slot openings are towards the other end of the first noumenon, described two coupling slots are set in parallel in the first noumenon, and the both sides up and down of described each coupling slot are equipped with jagged serrated slot; Described second antenna include one second body, the length of described the first noumenon is greater than the second body, one end of described second body is provided with the second gain bar, the free end of the second gain bar is provided with the second gain antenna of an arc, also include two bars that are coupled coordinated with coupling slot that are that be located at the second body other end, described two coupling bars be arranged in parallel, the both sides up and down of described each coupling bar are equipped with the jagged serrate projections coordinated with serrated slot, during cooperation, described serrate projections is positioned at serrated slot;
Also include T-shaped adjuster bar, be provided with the adjustment recess of an opening towards the first noumenon in described second body, the horizontal segment of described T-shaped adjuster bar is positioned at and regulates recess;
If the distance of the coupling free end of bar and the interior the inside of coupling slot is L, if the free end of the horizontal segment of T-shaped adjuster bar is M with the horizontal range of the interior the inside regulating recess, described L=M*3.75.
Wherein, one end of described the first noumenon is arcwall face, and radian is identical with the radian of the first gain antenna.
Wherein, one end of described second body is arcwall face, and radian is identical with the radian of the second gain antenna.
Wherein, described first gain antenna is identical with the radian of the second gain antenna, is 60 °-80 °.
Wherein, described first gain antenna is also provided with the 3rd gain bar away from the side of the first noumenon, and the free end of described 3rd gain bar is provided with the 3rd gain antenna.
Wherein, the radian of described 3rd gain bar is identical with the radian size of the first gain bar.
Wherein, the height of described the first noumenon is being less than 10cm.
Wherein, described first antenna is provided with the isolation channel of strip,
Wherein, described second antenna and the first antenna are provided with and increase breach frequently.
The beneficial effects of the utility model: 1, reading distance is long, its reading distance can reach 11-13m after tested.The reading distance of common RFID label antenna is all less than 10m.2, can stretch; I.e. adjustable length, it is substantially certain that it can be used for width, but on the packaging kit of indefinite length, have great practical value.3, every antenna performance is good, standing-wave ratio (SWR) is little, return loss is low, gain is high and possess omni-directional.Its performance when ultrahigh frequency is the frequency usage of (860-960MHz) especially about 925MHz is higher.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of label antenna of the present utility model;
Fig. 2 is the schematic diagram after the elongation of label antenna of the present utility model;
Fig. 3 is the first antenna schematic diagram of the present utility model;
Fig. 4 is the second antenna schematic diagram of the present utility model;
Fig. 5 utilizes schematic diagram of the present utility model;
Fig. 6 is testing impedance data plot of the present utility model;
Fig. 7 is return loss test data figure of the present utility model;
Fig. 8 is directivity test data figure of the present utility model;
Description of reference numerals in Fig. 1 to Fig. 8:
1-first antenna; 11-coupling slot; 12-serrated slot; 13-first gain bar; 14-first gain antenna; 15-the 3rd gain bar; 16-the 3rd gain antenna; 17-isolation channel; 18-increases breach frequently;
2-second antenna; 21-is coupled bar; 22-serrate projections; 23-second gain bar; 24-second gain antenna; 25-regulates recess;
3-T font adjuster bar;
4-dielectric-slab;
5-label chip;
6-substrate.
Embodiment
Being described in further detail the utility model below in conjunction with the drawings and specific embodiments, is not that practical range of the present utility model is confined to this.
As shown in Figures 1 to 8, the one described in the present embodiment plugs together coupling capacitance RFID label antenna, includes the first antenna 1 and the second antenna 2, the scalable adjustment of spacing of described first antenna 1 and the second antenna 2.The RFID label tag utilizing it to make comprises substrate 6, and be located at substrate 6 plugs together coupling capacitance RFID label antenna, described second antenna 2 is provided with dielectric-slab 4, and dielectric-slab 4 is provided with label chip 5, and described label chip and the first antenna and the second antenna are electrically connected.
One described in the present embodiment plugs together coupling capacitance RFID label antenna, first antenna 1 includes strip the first noumenon, one end of described the first noumenon is provided with the first gain bar 13, the free end of described first gain bar 13 is provided with the first gain antenna 14 of an arc, also include two coupling slots 11, described two coupling slot 11 openings are towards the other end of the first noumenon, described two coupling slots 11 are set in parallel in the first noumenon, and the both sides up and down of described each coupling slot 11 are equipped with jagged serrated slot 12; Described second antenna 2 include one second body, the length of described the first noumenon is greater than the second body, one end of described second body is provided with the second gain bar 23, the free end of the second gain bar 23 is provided with the second gain antenna 24 of an arc, also include two bars 21 that are coupled coordinated with coupling slot 11 that are that be located at the second body other end, described two coupling bars 21 be arranged in parallel, the both sides up and down of described each coupling bar 21 are equipped with the jagged serrate projections 22 coordinated with serrated slot 12, during cooperation, described serrate projections 22 is positioned at serrated slot 12; One described in the present embodiment plugs together coupling capacitance RFID label antenna, also includes T-shaped adjuster bar 3, is provided with the adjustment recess 25 of an opening towards the first noumenon in described second body, and the horizontal segment of described T-shaped adjuster bar 3 is positioned at and regulates recess 25; One described in the present embodiment plugs together coupling capacitance RFID label antenna, if the distance of the coupling free end of bar 21 and the interior the inside of coupling slot 11 is L, if the free end of the horizontal segment of T-shaped adjuster bar 3 is M with the horizontal range of the interior the inside regulating recess 25, described L=M*3.75.
It is long that this programme achieves reading distance by above-mentioned feature, and its reading distance can reach 11-13m after tested.The reading distance of common RFID label antenna is all less than 10m.In addition, it can stretch; I.e. adjustable length, it is substantially certain that it can be used for width, but on the packaging kit of indefinite length, have great use value, Different Package realizes note attached, in addition, can increase without limitation in theory.Finally, its every antenna performance is good, standing-wave ratio (SWR) is little, return loss is low, gain is high and possess omni-directional.; Its performance when the frequency usage of about 925MHz is higher.One described in the present embodiment plugs together coupling capacitance RFID label antenna, and one end of described the first noumenon is arcwall face, and radian is identical with the radian of the first gain antenna 14.Setting like this, further increases gain performance, and reduces return loss, and increase radiation omni-directional, optimum results is better.One described in the present embodiment plugs together coupling capacitance RFID label antenna, and one end of described second body is arcwall face, and radian is identical with the radian of the second gain antenna 24.Radian is identical can reduce standing wave formation between two antennas, reduces wave interference, reduces standing-wave ratio (SWR).One described in the present embodiment plugs together coupling capacitance RFID label antenna, and described first gain antenna 14 is identical with the radian of the second gain antenna 24, is 60 °-80 °.By emulation and actual experiment, the properties of this radian antenna is best.
One described in the present embodiment plugs together coupling capacitance RFID label antenna, and described first gain antenna 14 is also provided with the 3rd gain bar 15 away from the side of the first noumenon, and the free end of described 3rd gain bar 15 is provided with the 3rd gain antenna 16; One described in the present embodiment plugs together coupling capacitance RFID label antenna, and the radian of described 3rd gain bar 15 is identical with the radian size of the first gain bar 13; In like manner, so arrange, further increase gain performance, and reduce return loss, increase radiation omni-directional, optimum results is better.
One described in the present embodiment plugs together coupling capacitance RFID label antenna, and the height of described the first noumenon is being less than 10cm.One described in the present embodiment plugs together coupling capacitance RFID label antenna, described first antenna 1 is provided with the isolation channel 17 of strip, described isolation channel 17 is between two coupling slots 11, one described in the present embodiment plugs together coupling capacitance RFID label antenna, and described second antenna 2 is provided with increasing breach 18 frequently near two jiaos of places of the one side of the first antenna 1 and the first antenna 1 near the Liang Jiaochu of the one side of the second antenna 2.Increase breach 18 frequently and can increase isolation, reduce standing wave and formed, make standing-wave ratio (SWR) close to 1.The antenna of this programme also has good performance in omni-directional, and as described in Figure 8, in omni-directional, its performance is excellent, has 360 degree without the equidistant omni-directional in dead angle.As shown in Figure 7, its return loss performance is given prominence to, and especially when 925MHz, return loss minimum value reaches-65dB, all remains on below-10dB in the return loss of whole high band, and water is average more than other similar antenna levels.
Establish through surveying, it uses coverage all to reach 11-13m under different stretch length.
In addition, as shown in Figure 6, measured impedance is 11+144j ohm when 925MHz, reaches conjugate impedance match with the impedance 11+143j of chip Monza4Dura in the input impedance of this antenna measurement.Label can reach optimal effectiveness when 925MHz.
The above is only a preferred embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the protection domain of the utility model patented claim.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397384.5U CN205050172U (en) | 2015-06-11 | 2015-06-11 | Coupling capacitor RFID tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397384.5U CN205050172U (en) | 2015-06-11 | 2015-06-11 | Coupling capacitor RFID tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050172U true CN205050172U (en) | 2016-02-24 |
Family
ID=55343727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520397384.5U Expired - Fee Related CN205050172U (en) | 2015-06-11 | 2015-06-11 | Coupling capacitor RFID tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205050172U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197605A1 (en) * | 2015-06-11 | 2016-12-15 | 田艺儿 | Rfid tag |
| WO2016197911A1 (en) * | 2015-06-11 | 2016-12-15 | 张秀丽 | Rfid tag with coupling capacitance and isolation groove |
| WO2016197912A1 (en) * | 2015-06-11 | 2016-12-15 | 张秀丽 | Plug-in rfid tag antenna with coupling capacitance |
| CN107534205A (en) * | 2015-06-11 | 2018-01-02 | 张凯 | Provided with the RFID label tag for increasing frequency breach |
-
2015
- 2015-06-11 CN CN201520397384.5U patent/CN205050172U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197605A1 (en) * | 2015-06-11 | 2016-12-15 | 田艺儿 | Rfid tag |
| WO2016197911A1 (en) * | 2015-06-11 | 2016-12-15 | 张秀丽 | Rfid tag with coupling capacitance and isolation groove |
| WO2016197912A1 (en) * | 2015-06-11 | 2016-12-15 | 张秀丽 | Plug-in rfid tag antenna with coupling capacitance |
| CN107534205A (en) * | 2015-06-11 | 2018-01-02 | 张凯 | Provided with the RFID label tag for increasing frequency breach |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205050172U (en) | Coupling capacitor RFID tag | |
| US9478851B2 (en) | Antenna structure | |
| CN104866893B (en) | Coupling capacitance RFID label tag | |
| CN204760527U (en) | RFID tag antenna with isolation slot | |
| CN104979618B (en) | RFID label | |
| CN104979619A (en) | RFID (Radio Frequency Identification) label antenna provided with frequency-increasing notch | |
| CN204793165U (en) | RFID tags with booster notches | |
| US20180342808A1 (en) | Antenna structure | |
| CN204834834U (en) | Rfid tag | |
| CN204793163U (en) | Plug-in coupling capacitive RFID tag antenna | |
| CN103956570A (en) | Low-profile metal-resistant broadband ultrahigh-frequency RFID tag antenna | |
| CN101719590B (en) | Monopole antenna and mobile communication device with same | |
| CN104953236B (en) | RFID (radio frequency identification) label antenna with isolating slot | |
| CN204857931U (en) | Coupling capacitor RFID tag with isolation slot | |
| CN107534210A (en) | Plug together coupled capacitor RFID label antenna | |
| CN204793164U (en) | RFID tag antenna | |
| CN204793166U (en) | RFID tag antenna with booster notch | |
| CN107533659A (en) | Coupled capacitor RFID label tag provided with isolation channel | |
| US8325091B2 (en) | Dual-band antenna | |
| CN104979617B (en) | RFID (Radio Frequency Identification) label antenna provided with frequency-increasing notch | |
| CN203826553U (en) | Low-profile anti-metal broadband ultrahigh frequency RFID tag antenna | |
| CN104993223B (en) | RFID tag antenna | |
| CN105977609A (en) | Rfid tag | |
| CN105870610A (en) | RFID tag with flow disturbing hole | |
| CN106056198A (en) | RFID label |
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: 20160224 Termination date: 20170611 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |