CN103280629A - RFID (Radio Frequency Identification) ceramic antenna, and electronic label substrate and screw type RFID label thereof - Google Patents
RFID (Radio Frequency Identification) ceramic antenna, and electronic label substrate and screw type RFID label thereof Download PDFInfo
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- CN103280629A CN103280629A CN2013101560824A CN201310156082A CN103280629A CN 103280629 A CN103280629 A CN 103280629A CN 2013101560824 A CN2013101560824 A CN 2013101560824A CN 201310156082 A CN201310156082 A CN 201310156082A CN 103280629 A CN103280629 A CN 103280629A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 51
- 239000000758 substrate Substances 0.000 title abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 7
- 239000003989 dielectric material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- PEZNEXFPRSOYPL-UHFFFAOYSA-N (bis(trifluoroacetoxy)iodo)benzene Chemical compound FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006335 epoxy glue Polymers 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Abstract
An RFID ceramic antenna comprises a medium ceramic block (11), a top electrode surface (12) is arranged on the top surface of the medium ceramic block (11), a bottom electrode surface (13) is arranged on the bottom surface of the medium ceramic block (11), a short circuit electrode (15) is arranged on one side of the medium ceramic block (11), and a feed electrode (14) is arranged on the other side, opposite to the short circuit electrode, of the medium ceramic block (11), and is provided with an inverted U-shaped coupling gap (143), which divides the feed electrode (14) into an inverted U-shaped part (141) and an I-shaped part (142). The inverted U-shaped coupling gap means the lengthening of the radiating surface, so that the size of the antenna can be reduced, and thereby the purpose of miniaturization is achieved. An IC (integrated circuit) chip (21) is bound on the coupling gap of the RFID ceramic antenna, and is then coated with black rubber, so that an electronic label substrate is formed; and the electronic label substrate is combined with a metal screw and a round plate-shaped ceramic chip (4), so that a screw type RFID label is produced.
Description
Technical field
The present invention relates to a kind of structure of antenna and electronic tag thereof of electronic tag, a kind of RFID ceramic antenna and electronic tag matrix thereof and screw-type RFID label.
Background technology
RFID(Radio Frequency Identification) technology, claim electronic label technology, radio RF recognition technology again, it is a kind of communication technology, can identify specific objective and read and write related data by radio signals, need not to set up machinery between recognition system and the specific objective or optics contacts, function quick, batch identification can be realized, the occasion in asset managements such as IT, medical treatment, instruments can be used.Rfid system generally comprises electronic tag, read write line two parts.Electronic tag is installed on the identified object, is used for storing the identity information of identified object.Read write line and electronic tag carry out radio communication, and the data message in the electronic tag is write and reads.Antenna in the electronic tag is the critical component in the whole system, and its design and performance level are determining the performance of label to a great extent, comprise operating distance, consistency etc.The antenna of electronic tag can be divided into dipole antenna, microstrip antenna, PIFA antenna polytypes such as (Planar Inverted-F Antenna, i.e. planar inverted-F antennas), is applied to different occasions.
Sensing layers such as the development need RFID of technology of Internet of things and transducer realize that hyper band wherein is the emphasis of development.UHF RFID tag application is during to environment such as liquid, metal, and dipole antenna can't be competent at, and microstrip antenna or the PIFA antenna of pottery commonly used or plastic substrate are made label at present.When especially being applied on the micro metal assets such as instrument, IT and medical instrument, need the RFID label of miniaturization.
Summary of the invention
The present invention is intended to propose a kind of structure of RFID ceramic antenna, and another object of the present invention is propose to use the structure of the electronic tag matrix that this RFID ceramic antenna makes, and the 3rd purpose of the present invention is the structure that proposes a kind of screw-type RFID label.
This RFID ceramic antenna comprises the media ceramic piece of cuboid, the pole-face that powers on is arranged, as the radiating surface of antenna on the upper surface of media ceramic piece; A bottom electrode face is arranged, as grounding electrode on the lower surface of media ceramic piece; On the side of media ceramic piece a short-circuiting electrode is arranged, the upper edge of short-circuiting electrode is electrically connected with the pole-face that powers on, and the lower edge of short-circuiting electrode and bottom electrode face are electrically connected; On another side relative with the side that short-circuiting electrode is arranged a feed electrode is arranged on the media ceramic piece, an inverted U-shaped coupling slit is arranged on this feed electrode, the feed electrode is divided into inverted U-shaped part and I shape part two parts, the upper end of the inverted U-shaped part of feed electrode is electrically connected with the pole-face that powers on, and lower end and the bottom electrode face of the I shape part of feed electrode are electrically connected.
The media ceramic body of this RFID ceramic antenna adopts the microwave dielectric material of high-k.Inverted U-shaped coupling slit has been equivalent to prolong the length of head-on radiation electrode (pole-face namely powers on), thereby can dwindle antenna volume.The width of the short-circuiting electrode of the RFID ceramic antenna of this miniaturization can be regulated, to reach the accurate control to the ceramic antenna frequency.
Above-mentioned RFID ceramic antenna and an IC chip is combined, the IC chip is fixed on the bottom centre place of recess of the inverted U-shaped part of feed electrode, the input of IC chip, output pin partly fix with the inverted U-shaped part of feed electrode and I shape respectively and are electrically connected, outside the IC chip, be coated with again and apply black glue, namely become an electronic tag matrix.
The potsherd of the low-k of above-mentioned electronic tag matrix and a metallic screw and a circular plate type is combined, namely can be made into a kind of screw-type RFID label: there is the rectangular opening of a up/down perforation at the middle part of described potsherd, a columniform groove is arranged on the upper surface of the head of described metallic screw, potsherd embeds in the columniform groove of screw head, the face of cylinder of potsherd and the cylindrical wall of groove fix, the electronic tag matrix embeds in the rectangular opening at above-mentioned potsherd middle part, and fix with the sidewall in hole, the metal of the bottom surface of the earth electrode of electronic tag matrix and the columniform groove of screw head is electrically connected.This screw-type RFID label can rely on its bolt portion to be fixed on easily on metal or the non-metallic objectsit is not a metal object, plays the effect of electronic tag.
Description of drawings
Fig. 1 is the stereogram of feed electrode one side when preceding of RFID ceramic antenna of the present invention;
Fig. 2 is the stereogram of short-circuiting electrode one side when preceding of RFID ceramic antenna of the present invention;
Fig. 3 is for installing the schematic diagram that chip becomes the electronic tag matrix on the RFID ceramic antenna;
Fig. 4 is the structure chart of metallic screw;
Fig. 5 is the structure of potsherd;
Fig. 6 is for being the structure chart of screw-type RFID label.
Embodiment
As depicted in figs. 1 and 2, this RFID ceramic antenna comprises rectangular media ceramic piece 11, the pole-face 12 that powers on is arranged, as the radiating surface of antenna on the upper surface of media ceramic piece; A bottom electrode face 13 is arranged, as grounding electrode on the lower surface of media ceramic piece; On the side of media ceramic piece a short-circuiting electrode 15 is arranged, the upper edge of short-circuiting electrode is electrically connected with the pole-face that powers on, and the lower edge of short-circuiting electrode and bottom electrode face are electrically connected; On another side relative with the side that short-circuiting electrode 15 is arranged a feed electrode 14 is arranged on the media ceramic piece, an inverted U-shaped coupling slit 143 is arranged on the feed electrode 14, feed electrode 14 is divided into inverted U-shaped part 141 and I shape part 142 two parts, I shape partly is positioned at the recess of inverted U-shaped part, the upper end of the inverted U-shaped part 141 of feed electrode is electrically connected with the pole-face 12 that powers on, and lower end and the bottom electrode face 13 of the I shape part 142 of feed electrode are electrically connected.
It is the microwave ceramic material of 120～150 high-k that the media ceramic piece 11 of this RFID ceramic antenna can use dielectric constant.SrO-CaO-Li for example
2O-Nd
2O
3-TiO
2-Sm
2O
3Series microwave material, CaO-Li
2O-Ln
2O
3-TiO
2The series microwave material.The upper and lower surface of media ceramic piece 11 can be foursquare, also can be for rectangular.When adopting dielectric constant greater than 120 microwave dielectric material, can with the dimensioned of the RFID ceramic antenna of hyper band (UHF) to the length of side less than 6mm.The pole-face that powers on of this RFID ceramic antenna, bottom electrode face, short-circuiting electrode and feed electrode all can be made of the method for printing and silver ink firing.
Four electrode surfaces 12,13,14 and 15 of this RFID ceramic antenna are looped around and form a loop aerial on the media ceramic body.The design in inverted U-shaped coupling slit 143 has been equivalent to prolong the length of head-on radiation electrode (pole-face 12 namely powers on), under the certain situation of the dielectric constant of dielectric material, can dwindle antenna volume, realizes the purpose of miniaturization.The design in this inverted U-shaped coupling slit 143, add the microwave dielectric ceramic materials of selecting high-k for use, can greatly dwindle the volume of this loop aerial, finally realize the miniaturization of RFID ceramic antenna, made instrument, IT assets etc. aspect applying RFID technology, possess more selection.
As (a) of Fig. 3 with (b), on the coupling slit 143 of this RFID ceramic antenna can by " binding " (bonding) mode install IC chip 21, the IC chip is fixed on the bottom centre place of recess of the inverted U-shaped part 141 of feed electrode, and the input of IC chip 21, output pin fix with the inverted U-shaped part 141 of feed electrode and I shape part 142 respectively and be electrically connected.Be coated with in IC chip 21 positions again and apply black glue 22, chip 21 is fixed and protected, namely become the electronic tag matrix 2 shown in Fig. 3 (c).This electronic tag matrix can be used as electronic tag and has used, and can be attached to the surface of metal object, utilizes the surface of metal object to be used as ground plane.
As shown in Figure 6, the potsherd 4 of the low-k of above-mentioned electronic tag matrix 2 and a metallic screw 3 and a circular plate type is combined, namely can be made into a kind of screw-type RFID label.The structure of above-mentioned potsherd 4 is shown in Figure 5 as institute, and there is the rectangular opening 41 of a up/down perforation at its middle part, and the material of potsherd is the dielectric constant microwave pottery, as Al
2O
3Series microwave ceramics, MO-SiO
2(M=Ca, Mg, Zn) serial microwave ceramics etc.The structure of described metallic screw 3 has a columniform groove 32 as shown in Figure 4 on the upper surface of its head 31.Described potsherd 4 embeds in the columniform groove 32 of screw heads and fixes with the wall of groove, can apply some epoxy glue in the slit; Described electronic tag matrix 2 earth electrodes embed in the rectangular opening 41 at potsherd 4 middle parts downwards and hole wall fixes, and also can apply some epoxy glue in the slit; The earth electrode 13 of electronic tag is electrically connected with the metal of the bottom surface of the columniform groove 32 of screw head, the upper surface of electronic tag matrix 2 and the upper surface flush of screw head, or the upper surface of comparable screw head is low.The aerial radiation face 12 of electronic tag matrix 2 upwards keeps good radiance.This screw-type RFID label can rely on its bolt portion to be fixed on easily on the metal object, plays the effect of electronic tag.This screw-type RFID label also can use on non-metallic objectsit is not a metal object, but indexs such as its operating distance are more weaker than being used on the metal object.
Claims (3)
1. RFID ceramic antenna comprises the media ceramic piece (11) of cuboid the pole-face that powers on (12) being arranged, as the radiating surface of antenna on the upper surface of media ceramic piece; A bottom electrode face (13) is arranged, as grounding electrode on the lower surface of media ceramic piece; On the side of media ceramic piece a short-circuiting electrode (15) is arranged, the upper edge of short-circuiting electrode is electrically connected with the pole-face that powers on, and the lower edge of short-circuiting electrode and bottom electrode face are electrically connected; On another side relative with the side that short-circuiting electrode (15) is arranged a feed electrode (14) is arranged on the media ceramic piece, it is characterized in that an inverted U-shaped coupling slit (143) is arranged on the described feed electrode (14), feed electrode (14) is divided into inverted U-shaped part (141) and I shape part (142), the upper end of the inverted U-shaped part of feed electrode (14) is electrically connected with the pole-face (12) that powers on, and lower end and the bottom electrode face (13) of the I shape part of feed electrode (14) are electrically connected.
2. electronic tag matrix, comprise the described RFID ceramic antenna of claim 1, it is characterized in that it also comprises an IC chip (21), the IC chip is fixed on the bottom centre place of recess of the inverted U-shaped part (141) of feed electrode, the input of IC chip, output pin fix with the inverted U-shaped part (141) of feed electrode and I shape part (142) respectively and are electrically connected, the outer black glue (22) of apposition that is coated with of IC chip (21).
3. a screw-type RFID label comprises the described electronic tag matrix of claim 2, it is characterized in that it also comprises the potsherd (4) of the low-k of a metallic screw (3) and a circular plate type; There is the rectangular opening (41) of a up/down perforation at the middle part of potsherd, on the upper surface of the head (31) of described metallic screw (3) a columniform groove (32) is arranged, described potsherd (4) embeds in the columniform groove (32) of screw head, the face of cylinder of potsherd and the cylindrical wall of groove fix, the described electronic tag matrix of claim 2 (2) embeds in the rectangular opening (41) at above-mentioned potsherd middle part, and fix with the sidewall in hole, the earth electrode (13) of electronic tag matrix (2) is electrically connected with the metal of the bottom surface of the columniform groove (32) of screw head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156082.4A CN103280629B (en) | 2013-04-28 | 2013-04-28 | RFID ceramic antenna and electronic tag matrix thereof and screw-type RFID label tag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310156082.4A CN103280629B (en) | 2013-04-28 | 2013-04-28 | RFID ceramic antenna and electronic tag matrix thereof and screw-type RFID label tag |
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| CN103280629A true CN103280629A (en) | 2013-09-04 |
| CN103280629B CN103280629B (en) | 2015-09-23 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016049845A1 (en) * | 2014-09-30 | 2016-04-07 | Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies Limited | A wireless transmission device |
| CN106372708A (en) * | 2016-08-26 | 2017-02-01 | 无锡朗帆信息科技有限公司 | RFID electronic tag commonly used by metal, nonmetal and liquid and made of laminated ceramic layers, and manufacturing method |
| CN107392288A (en) * | 2017-07-14 | 2017-11-24 | 国电南瑞科技股份有限公司 | A kind of omnidirectional's power equipment inspection RF tag |
| CN107817057A (en) * | 2017-11-30 | 2018-03-20 | 杭州泽济电子科技有限公司 | Fastening assembly with miniaturized electronic label |
| CN108073971A (en) * | 2017-12-25 | 2018-05-25 | 上海数斐信息科技有限公司 | A kind of miniaturization double resonance anti-metal RFID label tag |
| CN108846468A (en) * | 2018-06-08 | 2018-11-20 | 深圳麦格米特电气股份有限公司 | Electronic labelling system |
| TWI666589B (en) * | 2018-11-30 | 2019-07-21 | 國立彰化師範大學 | Radio frequency screw antenna and radio frequency screw tag |
| CN110175668A (en) * | 2019-06-03 | 2019-08-27 | 北京宏诚创新科技有限公司 | A kind of concealed tracing devices and methods therefor |
| CN110783703A (en) * | 2019-11-12 | 2020-02-11 | 榆林学院 | Ground plate gap radiation n-type parasitic structure multi-frequency planar monopole antenna |
| US11815115B2 (en) | 2018-05-03 | 2023-11-14 | Hilti Aktiengesellschaft | Expansion anchor with protected optical code |
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| CN101737389A (en) * | 2009-12-31 | 2010-06-16 | 上海量科电子科技有限公司 | Nail with radio-frequency tag function |
| CN102820531A (en) * | 2011-06-08 | 2012-12-12 | 刘智佳 | RFID (radio frequency identification) tag antenna with compensation structure, RFID tag and system |
| CN203225345U (en) * | 2013-04-28 | 2013-10-02 | 嘉兴微感电子科技有限公司 | Miniature RFID (Radio Frequency Identification) ceramic antenna |
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2013
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Patent Citations (5)
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| US20090078762A1 (en) * | 2005-09-23 | 2009-03-26 | Stayput Tag Limited | Rfid tag |
| US7412898B1 (en) * | 2006-07-28 | 2008-08-19 | Disney Enterprises, Inc. | Load sensing system including RFID tagged fasteners |
| CN101737389A (en) * | 2009-12-31 | 2010-06-16 | 上海量科电子科技有限公司 | Nail with radio-frequency tag function |
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| CN203225345U (en) * | 2013-04-28 | 2013-10-02 | 嘉兴微感电子科技有限公司 | Miniature RFID (Radio Frequency Identification) ceramic antenna |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016049845A1 (en) * | 2014-09-30 | 2016-04-07 | Hong Kong R&D Centre for Logistics and Supply Chain Management Enabling Technologies Limited | A wireless transmission device |
| CN106372708B (en) * | 2016-08-26 | 2023-08-08 | 无锡朗帆信息科技有限公司 | RFID electronic tag manufactured by using ceramic lamination and used for sharing metal, nonmetal and liquid and manufacturing method |
| CN106372708A (en) * | 2016-08-26 | 2017-02-01 | 无锡朗帆信息科技有限公司 | RFID electronic tag commonly used by metal, nonmetal and liquid and made of laminated ceramic layers, and manufacturing method |
| CN107392288A (en) * | 2017-07-14 | 2017-11-24 | 国电南瑞科技股份有限公司 | A kind of omnidirectional's power equipment inspection RF tag |
| CN107817057A (en) * | 2017-11-30 | 2018-03-20 | 杭州泽济电子科技有限公司 | Fastening assembly with miniaturized electronic label |
| CN108073971A (en) * | 2017-12-25 | 2018-05-25 | 上海数斐信息科技有限公司 | A kind of miniaturization double resonance anti-metal RFID label tag |
| CN108073971B (en) * | 2017-12-25 | 2024-11-19 | 赛斐信息科技(南通)有限公司 | A miniaturized dual-resonance anti-metal RFID tag |
| US11815115B2 (en) | 2018-05-03 | 2023-11-14 | Hilti Aktiengesellschaft | Expansion anchor with protected optical code |
| CN108846468A (en) * | 2018-06-08 | 2018-11-20 | 深圳麦格米特电气股份有限公司 | Electronic labelling system |
| CN108846468B (en) * | 2018-06-08 | 2024-12-17 | 深圳麦格米特电气股份有限公司 | Electronic tag system |
| TWI666589B (en) * | 2018-11-30 | 2019-07-21 | 國立彰化師範大學 | Radio frequency screw antenna and radio frequency screw tag |
| CN110175668A (en) * | 2019-06-03 | 2019-08-27 | 北京宏诚创新科技有限公司 | A kind of concealed tracing devices and methods therefor |
| CN110783703B (en) * | 2019-11-12 | 2021-12-03 | 榆林学院 | Ground plate gap radiation n-type parasitic structure multi-frequency planar monopole antenna |
| CN110783703A (en) * | 2019-11-12 | 2020-02-11 | 榆林学院 | Ground plate gap radiation n-type parasitic structure multi-frequency planar monopole antenna |
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