CN202126698U - 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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- CN202126698U CN202126698U CN2011202174404U CN201120217440U CN202126698U CN 202126698 U CN202126698 U CN 202126698U CN 2011202174404 U CN2011202174404 U CN 2011202174404U CN 201120217440 U CN201120217440 U CN 201120217440U CN 202126698 U CN202126698 U CN 202126698U
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Abstract
The utility model discloses a subscriber identity module (SIM) card and a radio frequency identification system thereof, which comprise a signal induction and receipt module, an SIM card main control module, a radio frequency transmit-receive module and a metamaterial radio frequency antenna. The metamaterial radio frequency antenna comprises a medium substrate, a feeder line and a metal sheet attached to one surface of the medium substrate. The feeder line is embedded in the metal sheet in coupled mode, a microgroove structure is hollowed out on the metal sheet so as to form metal routing on the metal sheet, the antenna is provided with a space in advance, and the space is used for electronic elements to be embedded in. The metamaterial radio frequency antenna is applied to the radio frequency SIM card, and due to the fact that the size of the metamaterial radio frequency antenna is not limited by wavelength of electromagnetic wave and not required to be configured with an additional impedance matching network, the antenna is easier to integrate on the SIM card. Further, the antenna still maintains excellent properties and small size in working frequency range of the SIM card. Furthermore, the antenna finely adjusts the properties of the antenna by changing properties of the electronic elements embedded in the antenna, and the antenna which can meet the requirements for adaptability and universality of the SIM card can be designed.
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 have stronger adaptability and versatility 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; 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, 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 medium substrate, feeder line, attached to the sheet metal on said medium substrate one surface; Said feeder line is through the said sheet metal of coupling scheme feed-in; Hollow out has micro groove structure on said sheet metal, to form metal routing on the said sheet metal, and said antenna is preset with the space that electronic component embeds.
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 space is arranged between said feeder line, said feeder line and the said sheet metal and reaches at least one of these three positions of said sheet metal.
Further, said space is arranged on the metal routing on the said sheet metal.
Further, said space is arranged on the micro groove structure on the said sheet metal, and connects the metal routing of the adjacent trough rim of said micro groove structure.
Further, said electronic component is perceptual electronic component, capacitive electronic component or resistance.
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.And the ultra material radio-frequency antenna on the utility model SIM is through being provided with the space that electronic component embeds between feeder line, feeder line and the sheet metal and at least one of these three positions of sheet metal; Can finely tune the performance of antenna through the performance that changes the electronic component that embeds, design the antenna of the requirement of satisfying adaptability and versatility.
Description of drawings
Fig. 1 is a ultra material radio-frequency antenna structural representation on the utility model SIM;
Fig. 2 is the structural representation of ultra material radio-frequency antenna first embodiment on the utility model SIM;
Fig. 3 is the structural representation of ultra material radio-frequency antenna second embodiment on the utility model SIM;
Fig. 4 is the structural representation of ultra material radio-frequency antenna the 3rd embodiment on the utility model SIM;
Fig. 5 is the structural representation of ultra material radio-frequency antenna the 4th embodiment on the utility model SIM;
Fig. 6 is the structural representation of ultra material radio-frequency antenna the 5th embodiment on the utility model SIM;
Fig. 7 a is the synoptic diagram of complementary split ring resonator structure;
Fig. 7 b is depicted as the synoptic diagram of complementary helix structure;
Fig. 7 c is depicted as the synoptic diagram of opening helical ring structure;
Fig. 7 d is depicted as the synoptic diagram of two opening helical ring structures;
Fig. 7 e is depicted as the synoptic diagram of complementary folding line structure;
Fig. 8 a is the synoptic diagram of deriving of complementary its geometric configuration of split ring resonator structure shown in Fig. 7 a;
Fig. 8 b is the synoptic diagram of deriving of complementary its expansion of split ring resonator structure shown in Fig. 7 a;
Fig. 9 a is the structural representation behind the complementary split ring resonator structure shown in three Fig. 7 a compound;
Fig. 9 b is the compound synoptic diagram that the complementary split ring resonator structure shown in two Fig. 7 a and Fig. 7 b are depicted as complementary helix structure;
Figure 10 is the structural representation after the complementary split ring resonator structural group battle array shown in four Fig. 7 a;
Figure 11 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 6, Fig. 6 is the structured flowchart of the utility model SIM.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 100 and interface module 105.In the present embodiment, the equal one of above-mentioned each module is packaged in the SIM card substrate 104.Can imagine ground,, can also part of module be arranged on the apparent surface of SIM card substrate 104 that other modules are arranged at card substrate 104 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 100.Simultaneously, ultra material radio-frequency antenna 100 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.
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 micro groove structure on first 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 first sheet metal and feeder line makes antenna have abundant radiation characteristic.
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.
In order better to describe the structure of the antenna of the utility model; Fig. 1 adopts the skeleton view technique of painting; As shown in Figure 1, the said ultra material radio-frequency antenna 100 of the utility model comprises medium substrate 1, feeder line 2, attached to the sheet metal 4 on medium substrate 1 one surfaces, said feeder line 2 is through the said sheet metal 4 of coupling scheme feed-in; Hollow out has micro groove structure 41 on sheet metal, to form metal routing 42 on the said sheet metal, and said antenna 100 is preset with the space 6 that electronic component embeds.Among Fig. 1 to Fig. 6, the part of the cross-hatching on the sheet metal 4 is a metal routing 42, the blank parts on the sheet metal 4 (part of hollow out) expression micro groove structure 41.In addition, feeder line 2 is also represented with profile line.
Said micro groove structure 41 in the utility model can be the complementary helix structure shown in the complementary split ring resonator structure shown in Fig. 7 a, Fig. 7 b, a kind of in the two opening helical ring structures shown in the opening helical ring structure shown in Fig. 7 c, Fig. 7 d, the complementary folding line structure shown in Fig. 7 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. 7 a to Fig. 7 e, is offered new groove to form new micro groove structure; Complementary split ring resonator structure with shown in Fig. 7 a is an example, and Fig. 8 a is its geometric configuration synoptic diagram of deriving, and Fig. 8 b is its geometric configuration synoptic diagram of deriving.Compound being meant here, a plurality of stacks of the micro groove structure of Fig. 7 a to Fig. 7 e form a new micro groove structure, shown in Fig. 9 a, are the structural representation of the complementary split ring resonator structure shown in three Fig. 7 a after compound; Shown in Fig. 9 b, be that the complementary split ring resonator structure shown in two Fig. 7 a and Fig. 7 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. 7 a to Fig. 7 e, and is shown in figure 10, is the structural representation after a plurality of complementary split ring resonator structural group battle arrays shown in Fig. 7 a.Below be that example is set forth the utility model all with the opening helical ring structure shown in Fig. 7 c.
Divide five embodiment to come to introduce in detail the utility model below.
First embodiment
As shown in Figure 2, in the present embodiment, on feeder line 2, be preset with the space 51 that embeds perceptual electronic component and/or resistance, the position in preset embedding electronic component space can be the optional position on the feeder line 2, and can have a plurality of.Can in space 51, embed perceptual electronic component, to change the inductance value on the feeder line 2.Using formula:
can know square being inversely proportional to of size and frequency of operation of inductance value; So when the frequency of operation that needs is when hanging down frequency of operation, to realize through suitable embedding inductance or perceptual electronic component.In the present embodiment, the inductance value range of the perceptual electronic component of adding is between 0-5uH, thereby if too big alternating signal will be had influence on the radiation efficiency of antenna by inductive element consumption.The said antenna of present embodiment has the good radiation characteristic of a plurality of frequency ranges; Five main radiation frequencies are distributed to 5.5GHz from 900MHz always; Almost contained each main communication frequencys such as GSM, CDMA, bluetooth, W-Lan (IEEE802.11 agreement), GPS, TD-LTE, had very high integrated level and can reach the purpose that changes operating frequency of antenna through the inductance value on the feeder line is regulated.Certainly, also can be in space 51 embedded resistor, to improve the radiation resistance of antenna.Certainly, the space on the feeder line also can be a plurality of, wherein distinguishes embedded resistor and perceptual electronic component, has both realized the adjusting of frequency of operation, can improve the radiation resistance of antenna again.The space available wire short circuit that does not add electronic component.
Embodiment two
As shown in Figure 3, in the present embodiment, between feeder line 2 and sheet metal 4, be preset with the space 53 that embeds the capacitive electronic component, the position in preset embedding electronic component space can be the optional position between feeder line 2 and the sheet metal 4.Space 53 is the space that embeds the capacitive electronic component in the present embodiment among Fig. 3; Itself has certain electric capacity between feeder line 2 and the sheet metal 4; Here regulate the signal coupling between feeder line and the sheet metal 4 through embedding the capacitive electronic component; Using formula:
can know square being inversely proportional to of size and frequency of operation of capacitance; So when the frequency of operation that needs is when hanging down frequency of operation, to realize through suitable embedding electric capacity or perceptual electronic component.In the present embodiment, the capacitance scope of the capacitive electronic component of adding is usually between 0-2pF, but the capacitance that embeds along with the variation of operating frequency of antenna also possibly exceed the scope of 0-2pF.Certainly, also can between feeder line 2 and sheet metal 4, preset a plurality of spaces.Equally, in not being connected with the space of electronic component, adopt the lead short circuit.
Embodiment three
As shown in Figure 4; In the present embodiment; On the metal routing 42 of sheet metal, be reserved with the space that embeds perceptual electronic component and/or resistance, the space that embeds electronic component not only is confined to the space 55 and space 56 that provide among the figure, as long as other positions satisfy condition all can.The purpose that embeds perceptual electronic component here is the inductance value that increases sheet metal internal resonance structure, thus the effect that the resonance frequency and the bandwidth of operation of antenna played adjusting; Identical with embodiment one, the purpose of embedded resistor is to improve the radiation resistance of antenna here.So, then decide as required to embedding perceptual electronic component or resistance.In not embedding the space of electronic component, adopt the lead short circuit in addition.
Embodiment four
As shown in Figure 5, in the present embodiment, on micro groove structure 41, be reserved with the space 57 that embeds the capacitive electronic component, and said space 57 connects the metal routing 42 of micro groove structure 41 adjacent trough rims.The space that embeds electronic component not only limit to Fig. 5 in the space 57 that provides, as long as other positions satisfy condition all can.Embedding capacitive electronic component can change the resonance performance of sheet metal, the Q value and the resonance working point of finally improving antenna.As common practise, we know that the relation of passband BW and resonance frequency w0 and quality factor q is: BW=wo/Q, and this formula shows that Q more greatly then passband is narrow more, the more little then passband of Q is wide more.Other has: Q=wL/R=1/wRC, and wherein, Q is a quality factor; Supply frequency when w is circuit resonance; L is an inductance; R is the resistance of string; C is an electric capacity, can be known by the Q=wL/R=1/wRC formula, and Q and C are inverse ratio, therefore, can reduce the Q value through adding the capacitive electronic component, and passband is broadened.
Embodiment five
As shown in Figure 6, in the present embodiment, the space that electronic component embeds is set all between feeder line 2, feeder line 2 and the sheet metal 4 and sheet metal 4 these three positions.Wherein, the space on the sheet metal 4 comprises the space that is arranged on the space on the metal routing 42 and is arranged on the micro groove structure 41 and connects the metal routing 42 of both sides.Particularly, the space in the present embodiment comprises the space 61 on the feeder line 2, the space 63 between feeder line 2 and the sheet metal 4; Space 65,66 on the metal routing 42, the space 67 on the micro groove structure 41, certainly; The position that provides in the present embodiment is not a uniqueness, in the present embodiment, in above-mentioned space, adds electronic component to regulate the performance of antenna; The principle of its principle and embodiment one to four is similar, and present embodiment is no longer described.
The reserved location in space is not limited to above-mentioned five kinds of forms on the antenna 100 of the utility model, as long as the space is arranged on the antenna.For example, the space can also be arranged on the medium substrate.
The said electronic component of the utility model is perceptual electronic component, capacitive electronic component or resistance.After in the headspace of antenna, adding this type of electronic component, can improve the various performances of antenna.And, can realize the adjustable of antenna performance parameters through adding the electronic component of different parameters.Therefore; The antenna of the utility model can be the same structure before not adding any element; Just through adding different electronic components, and the parameter of electronic component (inductance value, resistance value, capacitance), realize the performance parameter of different antennae at diverse location.Promptly realized versatility.Can significantly reduce production costs.
The said space of the utility model can be a pad, also can be a vacancy.Pad configuration can be referring to the pad on the common circuit board.Certainly, the needs that the design consideration of its size is different can be different.
In addition, in the utility model, medium substrate is processed by stupalith, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being processed by macromolecular material, can be macromolecular materials such as FR-4, F4B particularly.Preferably, the material of the medium substrate of the ultra material radio-frequency antenna 100 on the utility model SIM is identical with the material of card substrate 100, and perhaps part card substrate 104 has promptly constituted the medium substrate of ultra material radio-frequency antenna 100.
In the utility model, sheet metal is copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.
In the utility model, feeder line is selected for use with the same material of sheet metal and is processed.Be preferably copper.
In the utility model,,, can adopt various manufactures as long as satisfy the design concept of the utility model about the processing and manufacturing of antenna.Prevailing method is to use the manufacturing approach of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes the processing request that also can satisfy the utility model.Remove this processing mode; Can also introduce other manufacturing process according to the needs of reality; (RFID is the abbreviation of Radio Frequency 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 antenna micro groove structure, accomplishes other slave part with iron plate.In addition, can also process through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
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 medium substrate, feeder line, attached to the sheet metal on said medium substrate one surface; Said feeder line is through the said sheet metal of coupling scheme feed-in; Hollow out has micro groove structure on said sheet metal, to form metal routing on the said sheet metal, and said antenna is preset with the space that electronic component embeds.
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. will remove 1 described SIM like right, it is characterized in that: said space is arranged between said feeder line, said feeder line and the said sheet metal and reaches at least one of these three positions of said sheet metal.
5. SIM as claimed in claim 4 is characterized in that: said space is arranged on the metal routing on the said sheet metal.
6. SIM as claimed in claim 4 is characterized in that: said space is arranged on the micro groove structure on the said sheet metal, and connects the metal routing of the adjacent trough rim of said micro groove structure.
7. SIM as claimed in claim 1 is characterized in that: said electronic component is perceptual electronic component, capacitive electronic component or resistance.
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 |
|---|---|---|---|
| CN2011202174404U CN202126698U (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 |
|---|---|---|---|
| CN2011202174404U CN202126698U (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 |
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| CN202126698U true CN202126698U (en) | 2012-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202174404U Expired - Lifetime CN202126698U (en) | 2011-06-24 | 2011-06-24 | Subscriber identity module (SIM) card and radio frequency identification system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810176A (en) * | 2011-06-24 | 2012-12-05 | 深圳光启高等理工研究院 | Subscriber identity module (SIM) card and radio frequency identification system thereof |
| CN103287034A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Metamaterial and preparation method thereof |
| CN103367907A (en) * | 2012-04-01 | 2013-10-23 | 深圳光启创新技术有限公司 | High-wave transmission metamaterial antenna housing and antenna system |
-
2011
- 2011-06-24 CN CN2011202174404U patent/CN202126698U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810176A (en) * | 2011-06-24 | 2012-12-05 | 深圳光启高等理工研究院 | Subscriber identity module (SIM) card and radio frequency identification system thereof |
| CN102810176B (en) * | 2011-06-24 | 2015-12-16 | 深圳光启高等理工研究院 | A kind of SIM card and radio-frequency recognition system thereof |
| CN103287034A (en) * | 2012-02-29 | 2013-09-11 | 深圳光启创新技术有限公司 | Metamaterial and preparation method thereof |
| CN103367907A (en) * | 2012-04-01 | 2013-10-23 | 深圳光启创新技术有限公司 | High-wave transmission metamaterial antenna housing and antenna system |
| CN103367907B (en) * | 2012-04-01 | 2017-03-29 | 深圳光启创新技术有限公司 | High wave transparent metamaterial antenna cover and antenna system |
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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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| CP02 | Change in the address of a patent holder | ||
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Granted publication date: 20120125 |
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