CN102810177A - SIM (subscriber identity module) card and radio frequency identification system thereof - Google Patents
SIM (subscriber identity module) card and radio frequency identification system thereof Download PDFInfo
- Publication number
- CN102810177A CN102810177A CN2011101727132A CN201110172713A CN102810177A CN 102810177 A CN102810177 A CN 102810177A CN 2011101727132 A CN2011101727132 A CN 2011101727132A CN 201110172713 A CN201110172713 A CN 201110172713A CN 102810177 A CN102810177 A CN 102810177A
- Authority
- CN
- China
- Prior art keywords
- sim
- sheet metal
- antenna
- module
- radio frequency
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 230000001939 inductive effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 59
- 239000000758 substrate Substances 0.000 claims description 44
- 230000000295 complement effect Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000006698 induction Effects 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000003302 ferromagnetic material Substances 0.000 claims description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 2
- 238000001259 photo etching Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
The invention discloses a SIM (subscriber identity module) card and a radio frequency identification system thereof. The SIM card comprises a signal inducing and receiving module, a SIM card master control module, a radio frequency receiving and transmitting module and a metamaterial radio frequency antenna, wherein the metamaterial radio frequency antenna comprises a first medium base plate and a second medium base plate covering the first medium base plate; the surface of one side of the first medium base plate is provided with a metal sheet and a feeder line arranged around the metal sheet, the feeder line is fed in the metal sheet in a coupling mode, and a microgroove structure is hollowed out on the metal sheet. According to the SIM card and the radio frequency identification system thereof disclosed by the invention, the metamaterial radio frequency antenna is applied in the radio frequency SIM card, and because the size of the metamaterial radio frequency antenna is not limited by the wavelength of the electromagnetic wave and does not need to be additionally provided with an impedance matching network, the antenna is easy to integrate on the SIM card, and the antenna still has a good performance and a small size in the working frequency range of the SIM card.
Description
Technical field
The present invention relates to the mobile payment field, relate in particular to a kind of SIM and radio-frequency recognition system thereof.
Background technology
Along with the variation with rapid changepl. never-ending changes and improvements of expanding economy and infotech, China has the number of the equipment that mobile phone etc. can communicate by letter to reach 700,000,000.But in communication facilities, adding payment function can reduce the inconvenience that people carry one's purse along and make people enjoy the convenient of payment whenever and wherever possible; Therefore; Mobile payment receives increasing attention, and in a foreseeable future has wide business development space.
At present existing on SIM the integrated RF recognition function all have a problem with the SIM of realizing mobile payment: be used to receive and the antenna that transmits bigger, can not adapt to the requirement of SIM miniaturization.Theoretical according to traditional antenna, antenna is of a size of 1/4th of required response electromagnetic wavelength, and therefore according to the antenna of traditional theory design, its size is limited by electromagnetic wavelength, can not free adjustment.Have a solution in the prior art, be about to antenna and be arranged at outside the SIM module, for example be arranged on the phone housing, but this kind way when having increased mobile phones design undoubtedly cost and be arranged at the outer antenna of SIM module and also damage easily.
Summary of the invention
Technical matters to be solved by this invention is, to the above-mentioned deficiency of prior art, propose a kind of be integrated with size do not receive the electromagnetic wavelength restriction and more the ultra material radio-frequency antenna of miniaturization SIM and have the radio-frequency recognition system of this SIM.
The technical solution adopted for the present invention to solve the technical problems is; A kind of SIM is proposed; It comprises: induction of signal and receiver module, SIM main control module, RF receiving and transmission module; Also comprise ultra material radio-frequency antenna; Said SIM main control module is handled the signal that said induction of signal and receiver module receive, and the instruction and data of said SIM main control module sends through said ultra material radio-frequency antenna through said RF receiving and transmission module conversion back, and said RF receiving and transmission module also receives the instruction and data of external unit through said ultra material radio-frequency antenna and transfers to said SIM main control module and handle; Said ultra material radio-frequency antenna comprises first medium substrate and is covered in second medium substrate on said first medium substrate; The feeder line that said first medium substrate, one side surface is provided with sheet metal and is provided with around said sheet metal, said feeder line is with the said sheet metal of coupling scheme feed-in, and hollow out has micro groove structure on the said sheet metal.
Further, said SIM also comprises card substrate, and said induction of signal and receiver module, said SIM main control module, said RF receiving and transmission module and the equal one of said ultra material radio-frequency antenna are packaged in the said card substrate.
Further, said micro groove structure comprises complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure, complementary folding line structure and through several kinds of structures in front are derived, compound, combination or group battle array obtain a micro groove structure.
Further, said first medium substrate is processed by stupalith, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material; The perhaps said first medium substrate material is identical with said card substrate material.
Further, said second medium substrate is processed by stupalith, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
Further, but be provided with the short circuit point between said feeder line and the said sheet metal, but said short circuit point is electrically connected said feeder line and said sheet metal makes said feeder line with the said sheet metal of inductive coupled mode feed-in.
Further, said micro groove structure through etching, bore quarter, photoetching, electronics is carved or ion is carved and is formed on the said sheet metal.
Further, said SIM also comprises interface module, and said interface module is electrically connected with said SIM main control module and makes said SIM through said interface module and portable terminal swap data.
Further, said portable terminal uses the mobile phone of GSM, CDMA, 3G or 4G communication network.
The present invention also provides a kind of radio-frequency recognition system, comprises reader and transponder, and said transponder is above-mentioned any described SIM.
The present invention will surpass the material radio-frequency antenna and be applied in the radio-frequency SIM card; Because ultra material radio-frequency antenna size is not subject to electromagnetic wavelength and does not need the additional configuration impedance matching network; Make this antenna more easy of integration on the SIM, and this antenna still keeps good performance and small-sized size at the SIM working frequency range.And the ultra material radio-frequency antenna on the SIM of the present invention also covers second medium substrate on first medium substrate; Form coupling capacitance between two medium substrates and make ultra material radio-frequency antenna need not to increase feeder line length when being operated in low frequency, further reduced the volume of ultra material radio-frequency antenna.
Description of drawings
Fig. 1 is ultra material radio-frequency antenna structural representation on the SIM of the present invention;
Fig. 2 a is the synoptic diagram of complementary split ring resonator structure;
Fig. 2 b is depicted as the synoptic diagram of complementary helix structure;
Fig. 2 c is depicted as the synoptic diagram of opening helical ring structure;
Fig. 2 d is depicted as the synoptic diagram of two opening helical ring structures;
Fig. 2 e is depicted as the synoptic diagram of complementary folding line structure;
Fig. 3 a is the synoptic diagram of deriving of complementary its geometric configuration of split ring resonator structure shown in Fig. 2 a;
Fig. 3 b is the synoptic diagram of deriving of complementary its expansion of split ring resonator structure shown in Fig. 2 a;
Fig. 4 a is the structural representation behind the complementary split ring resonator structure shown in three Fig. 2 a compound;
Fig. 4 b is the compound synoptic diagram that the complementary split ring resonator structure shown in two Fig. 2 a and Fig. 5 b are depicted as complementary helix structure;
Fig. 5 is the structural representation after the complementary split ring resonator structural group battle array shown in four Fig. 2 a;
Fig. 6 is the structured flowchart of SIM of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is further described.
As shown in Figure 6, Fig. 6 is the structured flowchart of SIM of the present invention.Among Fig. 6, SIM comprises induction of signal and receiver module 101, SIM main control module 102, RF receiving and transmission module 103, ultra material radio-frequency antenna 104 and interface module 105.In the present embodiment, the equal one of above-mentioned each module is packaged in the SIM card substrate 100.Can imagine ground,, can also part of module be arranged on the apparent surface of SIM card substrate 100 that other modules are arranged at card substrate 100 inside for making the space compact more.
Induction of signal and receiver module 101 inductions and the outside signal of reception; Be generally magnetic signal; And this signal is transferred to SIM main control module 102; SIM main control module 102 is judged according to the signal that receives; When needs during with external device communication, SIM main control module 102 sends instruction and data and gives RF receiving and transmission module 103, and RF receiving and transmission module 103 receives and instruction and data transformed the back behind the instruction and data that SIM main control module 102 sends and send through ultra material radio-frequency antenna 104.Simultaneously, ultra material radio-frequency antenna 104 also can receive outside electromagnetic signal and be transferred to RF receiving and transmission module 103, by being transferred to SIM main control module 102 after RF receiving and transmission module 103 conversions.In the present embodiment, SIM also comprises interface module 105, and SIM main control module 102 is through interface module 105 and portable terminal swap data.Portable terminal of the present invention can be the various cell phone apparatus that use GSM, CDMA, 3G or 4G communication network.
In the present embodiment; Induction of signal and receiver module 101, SIM main control module 102, RF receiving and transmission module 103 and interface module 105 all can be used conventional prior art; Its inner structure and working method are conventionally known to one of skill in the art; And not that the present invention mainly invents technical essential, therefore do not do detailed description at this.
The radio frequency standard that is applied to the mobile payment field is generally the low frequency frequency, and for example 13.56MHZ or 2.4GHZ can work in low frequency in order to make SIM, and the effect of antenna is particularly important.Yet according to the traditional antenna design proposal, the length of antenna is directly proportional with wavelength, and frequency is low more, thereby the longer antenna volume that causes of wavelength is big more.According to the traditional antenna design proposal, frequency of operation is an example with 13.56MHZ or 2.4GHZ still, and the thickness of antenna and length are all bigger, are difficult to be implemented in the application on the SIM.And, generally also need increase impedance matching network in the traditional antenna design proposal in order to guarantee the high-performance of antenna.
Ultra material is to be arranged on the base material and to be constituted by the artificial microstructure with certain pattern form, has different electromagnetic responses thereby the different pattern form of artificial microstructure makes ultra material have different specific inductive capacity with dimensional structure with the feasible ultra material of different magnetic permeabilities.Wherein, When this artificial microstructure is in resonance band; This artificial microstructure will show the dispersion characteristics of height, and the dispersion characteristics of so-called height are meant the impedance of this artificial microstructure, hold perception, equivalent specific inductive capacity and magnetic permeability be along with violent variation can take place frequency.
The present invention utilizes the above-mentioned principle of ultra material; Design a kind of ultra material radio-frequency antenna; It is formed at micro groove structure on the sheet metal, saves the design of impedance matching network and makes the size of antenna not be subject to the electromagnetic wavelength of required response to realize the miniaturization of antenna thereby the coupling of this sheet metal and feeder line makes antenna have abundant radiation characteristic.In addition, the present invention also adds second medium substrate in antenna structure, and second medium substrate is covered in and makes the distributed capacitance of antenna increase on first medium substrate.
Core of the present invention is ultra material radio-frequency antenna, below describes ultra material radio-frequency antenna of the present invention in detail.
As shown in Figure 1, Fig. 1 is the structural representation of ultra material radio-frequency antenna on the SIM of the present invention.Be clearer expression structure of the present invention, Fig. 1 adopts the skeleton view technique of painting.Among Fig. 1, ultra material radio-frequency antenna comprises first medium substrate 1 and is covered in second medium substrate 2 on this first medium substrate 1; The feeder line 11 that this first medium substrate, one side surface is provided with sheet metal 10 and is provided with around this sheet metal 10, this feeder line 11 is with this sheet metal 10 of coupling scheme feed-in, and 10 hollow outs have micro groove structure 12 on this sheet metal.
Thereby sheet metal 10 and the micro groove structure 12 that on sheet metal 10, forms make sheet metal 10 constitute an effective dielectric constant realizes changing the aerial radiation characteristic according to the electromagnetic material of Lorentz lorentz's material resonances model chromatic dispersion purpose.Fig. 2 a has provided a series of micro groove structure topology patterns of realizing the object of the invention to Fig. 5.When the design kind that should know micro groove structure have infinite multiple, be not limited to Fig. 2 a to Fig. 5 for example, but basically all be resonance structure, the design of micro groove structure here can be according to the topological property of sheet metal, as derives and make amendment with compound.Fig. 2 a is complementary split ring resonator structure; Fig. 2 b is complementary helix structure; Fig. 2 c is the opening helical structure; Fig. 2 d is two opening helical ring structures; Fig. 2 e is complementary bending structure.Micro groove structure can also be the deriving of above-mentioned Fig. 2 a to Fig. 2 e structure, compound or group battle array.Derive and be divided into two kinds; A kind of is that geometric configuration is derived; Another kind is that expansion is derived, and the geometric configuration is here derived and is meant that function class derives like, variform structure, is for example derived to class of a curve structure, triangle class formation and other different polygon class formation by the square frame class formation; The expansion is here derived and promptly on the basis of Fig. 2 a to Fig. 2 e, is offered new groove to form new micro groove structure; Complementary split ring resonator structure with shown in Fig. 2 a is an example, and Fig. 3 a is its geometric configuration synoptic diagram of deriving, and Fig. 3 b is its geometric configuration synoptic diagram of deriving.Compound being meant here, a plurality of stacks of the micro groove structure of Fig. 2 a to Fig. 2 e form a new micro groove structure, shown in Fig. 4 a, are the structural representation of the complementary split ring resonator structure shown in three Fig. 2 a after compound; Shown in Fig. 2 b, be that the complementary split ring resonator structure shown in two Fig. 2 a and Fig. 2 b are depicted as the common structural representation after compound of complementary helix structure.The group battle array here is meant the micro groove structure that is formed an integral body by the micro groove structure array on same sheet metal shown in a plurality of Fig. 2 a to Fig. 2 e, and is as shown in Figure 5, is the structural representation after a plurality of complementary split ring resonator structural group battle arrays shown in Fig. 2 a.Illustrate with the opening helical ring structure shown in Fig. 2 c in the present embodiment.
But thereby feeder line 11 is electrically connected with sheet metal 10 formation inductive coupled so that it is carried out feed through short circuit point 50 with sheet metal 10.But the position of short circuit point 50 can be the optional position.The mode of 10 pairs of sheet metal 10 feeds of feeder line can also be a capacitive coupling feeding classification in addition, and promptly feeder line 10 is provided with and does not contact with sheet metal 10 around sheet metal 10.The mode that second medium substrate 2 is covered in first medium substrate 1 is various, can adopt modes such as attaching, absorption or compacting.
Can know that by the antenna radio frequency principle electrical length is to describe the physical quantity of the frequent degree of electromagnetic wave wave form varies, electrical length=physical length/wavelength.When the same day, line worked in low frequency, the electromagnetic wavelength that low frequency is corresponding was longer, kept under the constant prerequisite of electrical length at needs, and increasing physical length is exactly necessary selection.Yet increase the requirement that physical length can not satisfy antenna miniaturization.The present invention covers on first medium substrate 1 and is provided with second medium substrate 2, and when antenna is receiving or during launching electromagnetic wave, thereby electromagnetic wave all need could or be received by emission through second medium substrate 2 and makes the distributed capacitance increase of antenna integral body.
can know according to formula, increases distributed capacitance and can effectively reduce operating frequency of antenna and make that under the prerequisite that does not increase physical length, just can to keep electrical length constant.Thereby and can change the whole distributed capacitance of antenna and all can reach the purpose that under the prerequisite that does not change physical length, changes electrical length to different frequencies through changing second medium substrate 2 and the material of first medium substrate 1, so just can in minimum space, design the radio-frequency antenna that is operated under the very low operation frequency.
The material of first medium substrate of the present invention can be selected pottery, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material for use; Wherein macromolecular material preferably polytetrafluoroethylene, F4B or FR4.More preferably, the present invention's first medium substrate promptly is made up of the card substrate 100 of SIM itself.The material of second medium substrate of the present invention can be selected pottery, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material for use; Wherein macromolecular material preferably polytetrafluoroethylene, F4B or FR4.
In the present invention, about the processing and manufacturing of antenna,, can adopt various manufactures as long as satisfy design concept of the present invention.Prevailing method is to use the manufacturing approach of all kinds of printed circuit board (PCB)s (PCB), metallized through hole, and the PCB of double-sided copper-clad makes all can satisfy processing request of the present invention.Remove this processing mode; Can also introduce other manufacturing process according to the needs of reality; (RFID is the abbreviation of RadioFrequency Identification such as RFID; Be REID, be commonly called as electronic tag) but in the processing mode that makes up of processing mode and iron plate and the PCB of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices.Wherein, iron plate and PCB combination processing mode is meant that the accurate processing that utilizes PCB accomplishes the processing of chip microstructure part, accomplishes other slave part with iron plate.
The present invention also provides a kind of radio-frequency recognition system in addition, comprises reader and transponder, and said transponder is above-mentioned SIM.
Combine accompanying drawing that embodiments of the invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (10)
1. SIM; Comprise induction of signal and receiver module, SIM main control module, RF receiving and transmission module; It is characterized in that: also comprise ultra material radio-frequency antenna; Said SIM main control module is handled the signal that said induction of signal and receiver module receive; The instruction and data of said SIM main control module sends through said ultra material radio-frequency antenna through said RF receiving and transmission module conversion back, and said RF receiving and transmission module also receives the instruction and data of external unit through said ultra material radio-frequency antenna and transfers to said SIM main control module and handle; Said ultra material radio-frequency antenna comprises first medium substrate and is covered in second medium substrate on said first medium substrate; The feeder line that said first medium substrate, one side surface is provided with sheet metal and is provided with around said sheet metal, said feeder line is with the said sheet metal of coupling scheme feed-in, and hollow out has micro groove structure on the said sheet metal.
2. SIM as claimed in claim 1; It is characterized in that: said SIM also comprises card substrate, and said induction of signal and receiver module, said SIM main control module, said RF receiving and transmission module and the equal one of said ultra material radio-frequency antenna are packaged in the said card substrate.
3. according to claim 1 or claim 2 SIM is characterized in that: said micro groove structure comprises complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure, complementary folding line structure and through several kinds of structures in front are derived, compound, combination or group battle array obtain a micro groove structure.
4. SIM as claimed in claim 2 is characterized in that: said first medium substrate is processed by stupalith, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material; The perhaps said first medium substrate material is identical with said card substrate material.
5. will remove 1 described SIM like right, it is characterized in that: said second medium substrate is processed by stupalith, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.
6. SIM as claimed in claim 1 is characterized in that: but be provided with the short circuit point between said feeder line and the said sheet metal, but said short circuit point is electrically connected said feeder line and said sheet metal makes said feeder line with the said sheet metal of inductive coupled mode feed-in.
7. SIM as claimed in claim 1 is characterized in that: said micro groove structure through etching, bore quarter, photoetching, electronics is carved or ion is carved and is formed on the said sheet metal.
8. SIM as claimed in claim 1 is characterized in that: said SIM also comprises interface module, and said interface module is electrically connected with said SIM main control module and makes said SIM through said interface module and portable terminal swap data.
9. will remove 8 described SIMs like right, it is characterized in that: said portable terminal uses the mobile phone of GSM, CDMA, 3G or 4G communication network.
10. a radio-frequency recognition system comprises reader and transponder, it is characterized in that: said transponder is any described SIM of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172713.2A CN102810177B (en) | 2011-06-24 | 2011-06-24 | A kind of SIM card and radio-frequency recognition system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172713.2A CN102810177B (en) | 2011-06-24 | 2011-06-24 | A kind of SIM card and radio-frequency recognition system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102810177A true CN102810177A (en) | 2012-12-05 |
| CN102810177B CN102810177B (en) | 2016-01-13 |
Family
ID=47233881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110172713.2A Expired - Fee Related CN102810177B (en) | 2011-06-24 | 2011-06-24 | A kind of SIM card and radio-frequency recognition system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102810177B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595433A (en) * | 2013-11-22 | 2014-02-19 | 上海坤锐电子科技有限公司 | Device and method for improving performance consistence of radio frequency SIM card in different mobile phones |
| CN104091789A (en) * | 2014-06-27 | 2014-10-08 | 南通富士通微电子股份有限公司 | Radio frequency module |
| CN105160384A (en) * | 2015-09-28 | 2015-12-16 | 北京世纪光信科技有限公司 | Card base of lamination card |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1906807A (en) * | 2004-04-09 | 2007-01-31 | 古河电气工业株式会社 | Compact antenna |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
| CN101739583A (en) * | 2008-11-26 | 2010-06-16 | 国民技术股份有限公司 | Radio frequency SIM card, radio frequency card reader and magnetic induction control method for radio frequency communication |
| CN201515009U (en) * | 2009-08-20 | 2010-06-23 | 深圳市麦捷微电子科技股份有限公司 | Patch-type digital video broadcast ceramic antenna |
| CN202217304U (en) * | 2011-06-24 | 2012-05-09 | 深圳光启高等理工研究院 | SIM card and radio frequency recognition system thereof |
-
2011
- 2011-06-24 CN CN201110172713.2A patent/CN102810177B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1906807A (en) * | 2004-04-09 | 2007-01-31 | 古河电气工业株式会社 | Compact antenna |
| CN101740862A (en) * | 2008-11-20 | 2010-06-16 | 东莞市启汉电子科技有限公司 | Dipole antenna of RF chip |
| CN101739583A (en) * | 2008-11-26 | 2010-06-16 | 国民技术股份有限公司 | Radio frequency SIM card, radio frequency card reader and magnetic induction control method for radio frequency communication |
| CN201515009U (en) * | 2009-08-20 | 2010-06-23 | 深圳市麦捷微电子科技股份有限公司 | Patch-type digital video broadcast ceramic antenna |
| CN202217304U (en) * | 2011-06-24 | 2012-05-09 | 深圳光启高等理工研究院 | SIM card and radio frequency recognition system thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595433A (en) * | 2013-11-22 | 2014-02-19 | 上海坤锐电子科技有限公司 | Device and method for improving performance consistence of radio frequency SIM card in different mobile phones |
| CN103595433B (en) * | 2013-11-22 | 2015-09-30 | 上海坤锐电子科技有限公司 | Improve radio-frequency SIM card conforming device and method of performance in different mobile phone |
| CN104091789A (en) * | 2014-06-27 | 2014-10-08 | 南通富士通微电子股份有限公司 | Radio frequency module |
| CN104091789B (en) * | 2014-06-27 | 2017-05-03 | 通富微电子股份有限公司 | Radio frequency module |
| CN105160384A (en) * | 2015-09-28 | 2015-12-16 | 北京世纪光信科技有限公司 | Card base of lamination card |
| CN105160384B (en) * | 2015-09-28 | 2017-12-22 | 北京世纪光信科技有限公司 | A kind of card base of pasting card |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102810177B (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102790263A (en) | Antenna device | |
| CN102810177A (en) | SIM (subscriber identity module) card and radio frequency identification system thereof | |
| CN202126698U (en) | Subscriber identity module (SIM) card and radio frequency identification system thereof | |
| CN202127089U (en) | Antenna and MIMO (Multiple Input Multiple Output) antenna with same | |
| CN202217304U (en) | SIM card and radio frequency recognition system thereof | |
| CN202150547U (en) | Antenna and MIMO antenna having above antenna | |
| CN202134031U (en) | SD (Secure Digital) card and radio frequency identification system thereof | |
| CN102810736A (en) | Antenna and wireless communication device | |
| CN103187620B (en) | Antenna and MIMO antenna provided with antennas | |
| CN202217302U (en) | Secure digital (SD) card and radio frequency identification system thereof | |
| CN202217292U (en) | Reader-writer, electronic tag and RFID system | |
| CN102800948A (en) | Antenna and wireless communication device | |
| CN202217305U (en) | Subscriber identity module (SIM) card and radio frequency (RF) identification system thereof | |
| CN202383729U (en) | SIM card and radio frequency identification system thereof | |
| CN202217306U (en) | Subscriber identity module (SIM) card and radio frequency identification system thereof | |
| CN202127092U (en) | Antenna and MIMO (multiple-input multiple-output) antenna with same | |
| CN102810176A (en) | Subscriber identity module (SIM) card and radio frequency identification system thereof | |
| CN102800936A (en) | Antenna and multiple input multiple output (MIMO) antenna with same | |
| CN202159765U (en) | Antenna and MIMO antenna including the same | |
| CN202217308U (en) | SD card and radio frequency recognition system thereof | |
| CN202217303U (en) | SD card (security digital memory card) and RF (radio frequency) recognition system thereof | |
| CN102799930A (en) | SIM (Subscriber Identity Module) card and radio frequency identification system thereof | |
| CN102799929A (en) | Subscriber identity module (SIM) card and radio frequency identification system thereof | |
| CN202217307U (en) | Secure digital (SD) card and radio frequency identification system thereof | |
| CN202127091U (en) | Antenna and multiple input multiple output (MIMO) antenna with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |