CN202217306U - Subscriber identity module (SIM) card and radio frequency identification system thereof - Google Patents
Subscriber identity module (SIM) card and radio frequency identification system thereof Download PDFInfo
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- CN202217306U CN202217306U CN201120217425XU CN201120217425U CN202217306U CN 202217306 U CN202217306 U CN 202217306U CN 201120217425X U CN201120217425X U CN 201120217425XU CN 201120217425 U CN201120217425 U CN 201120217425U CN 202217306 U CN202217306 U CN 202217306U
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Abstract
The utility model discloses a subscriber identity module (SIM) card and a radio frequency identification system of the SIM card, comprising a signal inducting and receiving module, an SIM card master control module, a radio frequency receiving/transmitting module and a meta material radio frequency antenna; the meta material radio frequency antenna comprises a feeder line and a metal sheet, and the feeder line is fed into the metal sheet in the manner of coupling; and a first micro-groove structure and a second micro-groove structure, which are unsymmetrical with each other, are leastways carved on the metal sheet, so that the antenna has at least two different resonant frequency ranges. The meta material radio frequency antenna is used in the radio frequency SIM card, the size of the meta material radio frequency antenna is not limited by the length of the electromagnetic wave, and the meta material radio frequency antenna does not need to be additionally provided with an impedance-matching network, so that the antenna is more easily integrated on the SIM card, and the antenna still keeps the good performance and the small size in the working frequency ranges of the SIM card; and the meta material radio frequency antenna of the system is easy to generate a plurality of resonance points, and the resonance points are hard to offset, so that the SIM card can work in different resonant frequency ranges.
Description
Technical field
The utility model relates to the mobile payment field, relates 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.
The utility model content
The utility model technical matters to be solved is; To the above-mentioned deficiency of prior art, propose a kind of be integrated with size do not receive electromagnetic wavelength restriction, more miniaturization and being easy to realize multimode ultra material radio-frequency antenna SIM and have the radio-frequency recognition system of this SIM.
The utility model solves the technical scheme that its technical matters adopted; 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 feeder line and sheet metal; Said feeder line is through the said sheet metal of coupling scheme feed-in; At least engrave asymmetrical first micro groove structure and second micro groove structure on the said sheet metal, made said antenna have at least two different resonance band.
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 SIM also comprises card substrate, and said ultra material radio-frequency antenna is arranged on the said card substrate surface.
Further, said first micro groove structure comprises complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure or complementary folding line structure.
Further, said second micro groove structure comprises complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure or complementary folding line structure.
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 first micro groove structure and said second 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 utility model also provides a kind of radio-frequency recognition system, comprises reader and transponder, and said transponder is above-mentioned any described SIM.
The utility model 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.Simultaneously; At least asymmetrical first micro groove structure and second micro groove structure have been engraved on the sheet metal of the ultra material radio-frequency antenna on the utility model SIM; Make said ultra material radio-frequency antenna have at least two different resonance band; And resonance band is difficult for offsetting, and makes SIM can work in a plurality of resonance band.。
Description of drawings
Fig. 1 is a ultra material radio-frequency antenna structural representation on the utility model SIM;
Fig. 2 is the ultra material radio-frequency antenna first preferred embodiments front elevation on the utility model SIM;
Fig. 3 is the ultra material radio-frequency antenna second preferred embodiments front elevation on the utility model SIM;
Fig. 4 is ultra material radio-frequency antenna the 3rd a preferred embodiments front elevation on the utility model SIM;
Fig. 5 a is the synoptic diagram of complementary split ring resonator structure;
Fig. 5 b is depicted as the synoptic diagram of complementary helix structure;
Fig. 5 c is depicted as the synoptic diagram of opening helical ring structure;
Fig. 5 d is depicted as the synoptic diagram of two opening helical ring structures;
Fig. 5 e is depicted as the synoptic diagram of complementary folding line structure;
Fig. 6 a is the synoptic diagram of deriving of complementary its geometric configuration of split ring resonator structure shown in Fig. 5 a;
Fig. 6 b is the synoptic diagram of deriving of complementary its expansion of split ring resonator structure shown in Fig. 5 a;
Fig. 7 a is the structural representation behind the complementary split ring resonator structure shown in three Fig. 5 a compound;
Fig. 7 b is the compound synoptic diagram that the complementary split ring resonator structure shown in two Fig. 5 a and Fig. 5 b are depicted as complementary helix structure;
Fig. 8 is the structural representation after the complementary split ring resonator structural group battle array shown in four Fig. 5 a;
Fig. 9 is the structured flowchart of the utility model SIM.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model technical scheme is further described.
As shown in Figure 9, Fig. 9 is the structured flowchart of the utility model SIM.Among Fig. 9, 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.The portable terminal of the utility model 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 the main utility model technical essential of the utility model, 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.Simultaneously, because therefore existing mobile payment field frequency standard and disunity make that antenna can also be the problem that needs solution in multiband work.
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 above-mentioned principle of the ultra material of the utility model utilization; Design a kind of ultra material radio-frequency antenna; It is formed at two asymmetrical micro groove structures on the sheet metal; Thereby the coupling of this sheet metal and feeder line makes antenna have abundant radiation characteristic and saves the design of impedance matching network and make the size of antenna not be subject to the miniaturization of the electromagnetic wavelength of required response with the realization antenna, and because the design of two asymmetric micro groove structures makes antenna be easy to the function of multifrequency point resonance with the multiband work of realization antenna.
The core of the utility model is ultra material radio-frequency antenna, below describes the ultra material radio-frequency antenna of the utility model in detail.
As shown in Figure 1, the said ultra material radio-frequency antenna of the utility model comprises feeder line 1, sheet metal 2.At least engrave asymmetrical first micro groove structure 100 and second micro groove structure 200 on the sheet metal 2, made asymmetrical antenna have at least two different resonant.Asymmetric first micro groove structure 100 that is meant here is different with pattern, size and/or the locus of second micro groove structure 200, and those differences cause first micro groove structure 100 different with the resonance band of second micro groove structure 200.
First micro groove structure 100 of the utility model and second micro groove structure 200 can be the complementary helix structures shown in the complementary split ring resonator structure shown in Fig. 5 a, Fig. 5 b, a kind of in the two opening helical ring structures shown in the opening helical ring structure shown in Fig. 5 c, Fig. 5 d, the complementary folding line structure shown in Fig. 5 e or through several kinds of structures in front derive, compound or a micro groove structure that the group battle array obtains.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. 5 a to Fig. 5 e, is offered new groove to form new micro groove structure; Complementary split ring resonator structure with shown in Fig. 5 a is an example, and Fig. 6 a is its geometric configuration synoptic diagram of deriving, and Fig. 6 b is its geometric configuration synoptic diagram of deriving.Compound being meant here, a plurality of stacks of the micro groove structure of Fig. 5 a to Fig. 5 e form a new micro groove structure, shown in Fig. 7 a, are the structural representation of the complementary split ring resonator structure shown in three Fig. 5 a after compound; Shown in Fig. 7 b, be that the complementary split ring resonator structure shown in two Fig. 5 a and Fig. 5 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. 5 a to Fig. 5 e, and is as shown in Figure 8, is the structural representation after a plurality of complementary split ring resonator structural group battle arrays shown in Fig. 5 a.But the utility model first micro groove structure 100 and second micro groove structure 200 are asymmetric, and concrete asymmetric manner specifies in the embodiment below.
Technologies such as the mode that on sheet metal 2, forms first micro groove structure 100 and second micro groove structure 200 can be etching, bores quarter, photoetching, electronics quarter, ion quarter; Wherein be etched to selection process; Its key step is after designing suitable micro groove structure; Through etching machines, utilize the chemical reaction of solvent and metal to get rid of the sheet metal 2 that the paillon foil of presetting micro groove structure partly can obtain being formed with above-mentioned first micro groove structure 100 and second micro groove structure 200 then.The material of above-mentioned tinsel can be metals such as copper, silver.
The utility model is if adopt first micro groove structure and second micro groove structure of symmetry on sheet metal 2; Promptly first micro groove structure is identical with the resonance frequency of second micro groove structure;, the two will cause antenna Q value to increase after intercoupling; Corresponding bandwidth BW diminishes, and is unfavorable for the realization of multimode resonance.And if adopt asymmetrical at least first micro groove structure and second micro groove structure; Because the two response capacitance that electromagnetic wave produced and inductance value can be different; Thereby produce a plurality of different tuning-pointss; And these a plurality of different tuning-pointss are difficult for offsetting, and help the multimodeization that realizes that antenna is abundant.
First micro groove structure 100 of the utility model can be the same with the version of second micro groove structure 200, also can be different.And the asymmetric degree of first micro groove structure 100 and second micro groove structure 200 can be regulated as required.Thereby realize abundant adjustable multimode resonance.And as required, the utility model also can be provided with on the same sheet metal number more than two micro groove structure so that antenna has the different resonance band more than three.
Below discuss in detail the asymmetric micro groove structure that forms on three kinds of the utility model sheet metals 2.
As shown in Figure 2; Fig. 2 is the front elevation of first preferred embodiments of the utility model, and among Fig. 2, first micro groove structure 100 and second micro groove structure 200 are unsymmetric structure; Wherein, First micro groove structure 100 and second micro groove structure 200 link together, because the difference of pattern causes the asymmetric of its structure, make the regional separately resonance frequency of win micro groove structure 100 and second micro groove structure 200 different.Derived structure with complementary helix structure shown in Fig. 5 b and complementary helix structure in this embodiment is the example explanation, and the two interconnects.
As shown in Figure 3; Fig. 3 is the front elevation of second preferred embodiments of the utility model, and among Fig. 3, first micro groove structure 100 and second micro groove structure 200 are the different unsymmetric structure of pattern; Wherein, First micro groove structure 100 and second micro groove structure 200 are separately independently, because the difference of pattern causes the asymmetric of its structure, make the regional separately resonance frequency of win micro groove structure 100 and second micro groove structure 200 different.First micro groove structure 100 is the example explanation with the structure of opening helical ring shown in Fig. 5 c in this embodiment, and second micro groove structure 200 is the example explanation with complementary helix structure shown in Fig. 5 b.
As shown in Figure 4, be the front elevation of the 3rd preferred embodiments of the utility model, among Fig. 4; First micro groove structure 100 and second micro groove structure 200 are unsymmetric structure; Wherein, first micro groove structure 100 and second micro groove structure 200 are separately independently, and its pattern is identical; But the difference of its size causes the asymmetric of its structure, and the resonance frequency in zone is different separately to make win micro groove structure 100 and second micro groove structure 200.In this embodiment, first micro groove structure 100 and second micro groove structure 200 are the example explanation with the complementary helix structure shown in Fig. 5 c all.
The utility model 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 the embodiment of the utility model is described above; But the utility model 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 the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
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 feeder line and sheet metal; Said feeder line is through the said sheet metal of coupling scheme feed-in; At least engrave asymmetrical first micro groove structure and second micro groove structure on the said sheet metal, made said antenna have at least two different resonance band.
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. SIM as claimed in claim 1 is characterized in that: said SIM also comprises card substrate, and said ultra material radio-frequency antenna is arranged on the said card substrate surface.
4. like claim 1 or 2 or 3 described SIMs, it is characterized in that: said first micro groove structure comprises complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure or complementary folding line structure.
5. like claim 1 or 2 or 3 described SIMs, it is characterized in that: said second micro groove structure comprises complementary split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure or complementary folding line structure.
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 first micro groove structure and said second 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 |
|---|---|---|---|
| CN201120217425XU CN202217306U (en) | 2011-06-24 | 2011-06-24 | Subscriber identity module (SIM) card and radio frequency identification system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120217425XU CN202217306U (en) | 2011-06-24 | 2011-06-24 | Subscriber identity module (SIM) card and radio frequency identification system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202217306U true CN202217306U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120217425XU Expired - Lifetime CN202217306U (en) | 2011-06-24 | 2011-06-24 | Subscriber identity module (SIM) card and radio frequency identification system thereof |
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| CN (1) | CN202217306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102799928A (en) * | 2011-06-24 | 2012-11-28 | 深圳光启高等理工研究院 | SIM (Subscriber Identity Module) card and radio frequency identification system thereof |
-
2011
- 2011-06-24 CN CN201120217425XU patent/CN202217306U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102799928A (en) * | 2011-06-24 | 2012-11-28 | 深圳光启高等理工研究院 | SIM (Subscriber Identity Module) card and radio frequency identification system thereof |
| CN102799928B (en) * | 2011-06-24 | 2015-10-28 | 深圳光启高等理工研究院 | A kind of SIM card and radio-frequency recognition system thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518057 2, building 9, hi tech middle 1, Nanshan District high tech Zone, Shenzhen, Guangdong. Co-patentee after: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Patentee after: Shenzhen Kuang-Chi Institute of Advanced Technology Address before: 518000 software building 9, hi tech middle 1, central high tech Zone, Shenzhen, Guangdong, China. Co-patentee before: Shenzhen Kuang-Chi Innovation Technology Co., Ltd. Patentee before: Shenzhen Kuang-Chi Institute of Advanced Technology |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |