CN104866894A - Coupling capacitance RFID label provided with isolation groove - Google Patents
Coupling capacitance RFID label provided with isolation groove Download PDFInfo
- Publication number
- CN104866894A CN104866894A CN201510317386.3A CN201510317386A CN104866894A CN 104866894 A CN104866894 A CN 104866894A CN 201510317386 A CN201510317386 A CN 201510317386A CN 104866894 A CN104866894 A CN 104866894A
- Authority
- CN
- China
- Prior art keywords
- antenna
- gain
- bar
- rfid label
- coupling
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Waveguide Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
The invention discloses a coupling capacitance RFID label, which is provided with an isolation groove in an inserting manner and which comprises a first antenna and a second antenna, wherein the distance between the first antenna and the second antenna can be extended and adjusted. The coupling capacitance RFID label has a long reading distance, and the reading distance thereof can reach 11 to 13 m by testing. The label can be stretched, that is to say that the length is adjustable. The label can be applied to a pair package whose width is confirmed basically but length is not confirmed. The coupling capacitance RFID label of the invention has great practical value, small standing-wave ratio, low return loss, high gain and omni-directionality, and performance of the antenna thereof is excellent.
Description
Technical field
The present invention relates to a kind of coupling capacitance RFID label tag being provided with isolation channel.
Background technology
At present, radio-frequency (RF) identification and RFID(Radio Frequency Identification) 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.
Summary of the invention
The object of the invention is to overcome above-described shortcoming, a kind of coupling capacitance RFID label tag being provided with isolation channel is provided.
For achieving the above object, concrete scheme of the present invention is as follows: comprise substrate, and is located at the coupling capacitance RFID label antenna that plugging together on substrate is provided with isolation channel, and described second antenna is provided with dielectric-slab, dielectric-slab is provided with label chip, and described label chip and antenna are electrically connected;
Described label antenna includes the first antenna and the second antenna, the scalable adjustment of spacing of described first antenna and the second antenna.
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, the side of described first gain antenna is also provided with the 3rd gain bar, 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.
Beneficial effect of the present invention: 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 invention;
Fig. 2 is the schematic diagram after the elongation of label antenna of the present invention;
Fig. 3 is the first antenna schematic diagram of the present invention;
Fig. 4 is the second antenna schematic diagram of the present invention;
Fig. 5 utilizes schematic diagram of the present invention;
Fig. 6 is testing impedance data plot of the present invention;
Fig. 7 is return loss test data figure of the present invention;
Fig. 8 is directivity test data figure of the present invention;
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
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, is not practical range of the present invention is confined to this.
As shown in Figures 1 to 8, a kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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 the coupling capacitance RFID label antenna that plugging together on substrate 6 is provided with isolation channel, described second antenna 2 is provided with dielectric-slab 4, and dielectric-slab 4 is provided with label chip 5, and described label chip 5 is electrically connected with antenna.
A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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; A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, also include T-shaped adjuster bar 3, be provided with the adjustment recess 25 of an opening towards the first noumenon in described second body, the horizontal segment of described T-shaped adjuster bar 3 is positioned at and regulates recess 25; A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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.A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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.A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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).A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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.
A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, and the side of described first gain antenna 14 is also provided with the 3rd gain bar 15, and the free end of described 3rd gain bar 15 is provided with the 3rd gain antenna 16; A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, 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.
A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, and the height of described the first noumenon is being less than 10cm.A kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, described first antenna 1 is provided with the isolation channel 17 of strip, described isolation channel 17 is between two coupling slots 11, a kind of described in the present embodiment plugs together the coupling capacitance RFID label antenna being provided with isolation channel, and described second antenna 2 to be provided with near the Liang Jiaochu of the one side of the second antenna 2 near two jiaos of places of the one side of the first antenna 1 and the first antenna 1 and to increase breach 18 frequently.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.Test result is as following table:
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 Monza4 Dura 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 invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in the protection domain of patented claim of the present invention.
Claims (8)
1. one kind is provided with the coupling capacitance RFID label tag of isolation channel, it is characterized in that: comprise substrate (6), and be located at the coupling capacitance RFID label antenna that plugging together on substrate (6) is provided with isolation channel, described second antenna (2) is provided with dielectric-slab (4), dielectric-slab (4) is provided with label chip (5), and described label chip (5) and antenna are electrically connected;
Described 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);
Described first antenna (1) is provided with the isolation channel (17) of strip.
2. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 1, it is characterized in that: the 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 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, 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 second gain antenna (24) of an arc, also include two bars that are coupled (21) coordinated with coupling slot (11) that are that be located at the second body other end, described two couplings bar (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),
Also include T-shaped adjuster bar (3), be provided with the adjustment recess (25) of an opening towards the first noumenon in described second body, the horizontal segment of described T-shaped adjuster bar (3) is positioned at and regulates recess (25);
If the distance of the free end of coupling 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.
3. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 2, is characterized in that: one end of described the first noumenon is arcwall face, and radian is identical with the radian of the first gain antenna (14).
4. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 2, is characterized in that: one end of described second body is arcwall face, and radian is identical with the radian of the second gain antenna (24).
5. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 2, is characterized in that: described first gain antenna (14) is identical with the radian of the second gain antenna (24), is 60 °-80 °.
6. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 2, it is characterized in that: the side of described first gain antenna (14) is also provided with the 3rd gain bar (15), the free end of described 3rd gain bar (15) is provided with the 3rd gain antenna (16).
7. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 6, is characterized in that: the radian of described 3rd gain bar (15) is identical with the radian size of the first gain bar (13).
8. a kind of coupling capacitance RFID label tag being provided with isolation channel according to claim 2, is characterized in that: the height of described the first noumenon is being less than 10cm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317386.3A CN104866894A (en) | 2015-06-11 | 2015-06-11 | Coupling capacitance RFID label provided with isolation groove |
| PCT/CN2016/085114 WO2016197911A1 (en) | 2015-06-11 | 2016-06-07 | Rfid tag with coupling capacitance and isolation groove |
| CN201680023679.3A CN107533659B (en) | 2015-06-11 | 2016-06-07 | Coupling capacitor RFID label with isolation groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317386.3A CN104866894A (en) | 2015-06-11 | 2015-06-11 | Coupling capacitance RFID label provided with isolation groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104866894A true CN104866894A (en) | 2015-08-26 |
Family
ID=53912714
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510317386.3A Pending CN104866894A (en) | 2015-06-11 | 2015-06-11 | Coupling capacitance RFID label provided with isolation groove |
| CN201680023679.3A Active CN107533659B (en) | 2015-06-11 | 2016-06-07 | Coupling capacitor RFID label with isolation groove |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680023679.3A Active CN107533659B (en) | 2015-06-11 | 2016-06-07 | Coupling capacitor RFID label with isolation groove |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN104866894A (en) |
| WO (1) | WO2016197911A1 (en) |
Cited By (3)
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809594A (en) * | 2007-09-27 | 2010-08-18 | 3M创新有限公司 | Extended RFID tag |
| WO2013036725A1 (en) * | 2011-09-08 | 2013-03-14 | Avery Dennison Corporation | Rfid device with elongated structure |
| CN204857931U (en) * | 2015-06-11 | 2015-12-09 | 邝嘉豪 | Coupling capacitance RFID label with shield groove |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1027564C (en) * | 1992-05-16 | 1995-02-01 | 丘雪明 | Capacitor coupled isolted amplifier |
| US6062887A (en) * | 1998-08-31 | 2000-05-16 | Motorola, Inc. | Electronic device with dual card reader employing a drawer |
| TW474496U (en) * | 2000-12-20 | 2002-01-21 | Hon Hai Prec Ind Co Ltd | Electronic card connector |
| CN101090175B (en) * | 2007-07-18 | 2013-07-10 | 北京邮电大学 | Superhigh frequency RFID universal label antenna of coupled capacitor and inductance |
| KR101030372B1 (en) * | 2008-12-18 | 2011-04-20 | 아주대학교산학협력단 | Broadband U-shaped RFID Tag Antenna with Near-Isotropic Characteristic |
| CN103646270A (en) * | 2013-12-03 | 2014-03-19 | 北京中电华大电子设计有限责任公司 | Wideband electronic tag |
| CN104866894A (en) * | 2015-06-11 | 2015-08-26 | 江健良 | Coupling capacitance RFID label provided with isolation groove |
| CN205050172U (en) * | 2015-06-11 | 2016-02-24 | 潘彩虹 | Coupling capacitance RFID label |
| CN104979617B (en) * | 2015-06-11 | 2017-01-25 | 福州臻美网络科技有限公司 | RFID (Radio Frequency Identification) label antenna provided with frequency-increasing notch |
| CN204760527U (en) * | 2015-06-11 | 2015-11-11 | 宗淑英 | RFID tag antenna with shield groove |
| CN204834834U (en) * | 2015-06-11 | 2015-12-02 | 邝嘉豪 | RFID label |
| CN204793166U (en) * | 2015-06-11 | 2015-11-18 | 邝嘉豪 | RFID tag antenna with increase breach frequently |
| CN204793163U (en) * | 2015-06-11 | 2015-11-18 | 邝嘉豪 | Insert and close coupling capacitance RFID tag antenna |
| CN104979619A (en) * | 2015-06-11 | 2015-10-14 | 江健良 | RFID (Radio Frequency Identification) label antenna provided with frequency-increasing notch |
| CN104953236B (en) * | 2015-06-11 | 2017-02-01 | 烟台惠通网络技术有限公司 | RFID (radio frequency identification) label antenna with isolating slot |
| CN104916906A (en) * | 2015-06-11 | 2015-09-16 | 江健良 | Insertion coupling capacitor RFID tag antenna |
| CN104979618B (en) * | 2015-06-11 | 2016-05-18 | 湖北伟能达印刷包装有限公司 | RFID label |
| CN204793165U (en) * | 2015-06-11 | 2015-11-18 | 邝嘉豪 | RFID label with increase breach frequently |
| CN104866893B (en) * | 2015-06-11 | 2016-03-23 | 易寒 | Coupling capacitance RFID label tag |
| CN104993223B (en) * | 2015-06-11 | 2016-05-11 | 朱洪杨 | Rfid label antenna |
| CN204793164U (en) * | 2015-06-11 | 2015-11-18 | 邝嘉豪 | RFID tag antenna |
-
2015
- 2015-06-11 CN CN201510317386.3A patent/CN104866894A/en active Pending
-
2016
- 2016-06-07 WO PCT/CN2016/085114 patent/WO2016197911A1/en active Application Filing
- 2016-06-07 CN CN201680023679.3A patent/CN107533659B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101809594A (en) * | 2007-09-27 | 2010-08-18 | 3M创新有限公司 | Extended RFID tag |
| WO2013036725A1 (en) * | 2011-09-08 | 2013-03-14 | Avery Dennison Corporation | Rfid device with elongated structure |
| CN204857931U (en) * | 2015-06-11 | 2015-12-09 | 邝嘉豪 | Coupling capacitance RFID label with shield groove |
Cited By (3)
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107533659B (en) | 2020-12-08 |
| WO2016197911A1 (en) | 2016-12-15 |
| CN107533659A (en) | 2018-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104866893B (en) | Coupling capacitance RFID label tag | |
| EP3201986B1 (en) | Antenna device for a base station antenna system | |
| CN205050172U (en) | Coupling capacitance RFID label | |
| CN204793165U (en) | RFID label with increase breach frequently | |
| CN204793163U (en) | Insert and close coupling capacitance RFID tag antenna | |
| CN204834834U (en) | RFID label | |
| JP2006229975A (en) | Ultra wide band antenna having 270 degree coverage and system thereof | |
| CN104979618B (en) | RFID label | |
| CN104979619A (en) | RFID (Radio Frequency Identification) label antenna provided with frequency-increasing notch | |
| US9478851B2 (en) | Antenna structure | |
| CN204857931U (en) | Coupling capacitance RFID label with shield groove | |
| CN204760527U (en) | RFID tag antenna with shield groove | |
| CN204793166U (en) | RFID tag antenna with increase breach frequently | |
| CN204793164U (en) | RFID tag antenna | |
| CN104866894A (en) | Coupling capacitance RFID label provided with isolation groove | |
| CN104953236B (en) | RFID (radio frequency identification) label antenna with isolating slot | |
| CN104916906A (en) | Insertion coupling capacitor RFID tag antenna | |
| CN104979617B (en) | RFID (Radio Frequency Identification) label antenna provided with frequency-increasing notch | |
| CN104993223B (en) | Rfid label antenna | |
| CN106025531A (en) | Ultra-wideband antenna with triple notch characteristics | |
| US20100265157A1 (en) | Multi-band antenna | |
| US20110187618A1 (en) | Dual-band antenna | |
| US20080191957A1 (en) | U shape three dimensional multi-frequency antenna | |
| CN103618137B (en) | The coplanar all channel antenna of optical grating construction shape | |
| CN204577587U (en) | A kind of double dipole RFID label antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150826 |