技术领域technical field
本发明涉及移动支付领域，尤其涉及一种SIM卡及其射频识别系统。The invention relates to the field of mobile payment, in particular to a SIM card and a radio frequency identification system thereof.
背景技术Background technique
随着经济的发展和信息技术的日新月异变化，我国拥有手机等可通信的设备的人数以达到7亿。在可通信设备中加入支付功能能够减少人们随身携带钱包的不便并使得人们享受随时随地支付的便捷，因此，移动支付受到越来越多的重视，并在可预见的未来具有广阔的商业发展空间。With the development of the economy and the rapid changes of information technology, the number of people who own communication devices such as mobile phones in my country has reached 700 million. Adding payment functions to communication devices can reduce the inconvenience of people carrying wallets and allow people to enjoy the convenience of paying anytime and anywhere. Therefore, mobile payment has received more and more attention and has broad commercial development space in the foreseeable future .
目前已有的在SIM卡上集成射频识别功能以实现移动支付的SIM卡均存在一个问题：用于接收和发射信号的天线较大，不能适应SIM卡小型化的要求。根据传统的天线理论，天线的尺寸为所需响应电磁波波长的四分之一，因此根据传统理论设计的天线，其尺寸被电磁波波长限制，不可自由调节。现有技术中存在一个解决方案，即将天线设置于SIM卡模块之外，例如设置于手机外壳上，但此种做法无疑增加了手机设计时的成本且设置于SIM卡模块外的天线也容易损坏。There is a problem in existing SIM cards that integrate radio frequency identification functions on SIM cards to realize mobile payment: the antenna for receiving and transmitting signals is relatively large, which cannot meet the requirements of miniaturization of SIM cards. According to the traditional antenna theory, the size of the antenna is a quarter of the wavelength of the required response electromagnetic wave. Therefore, the size of the antenna designed according to the traditional theory is limited by the wavelength of the electromagnetic wave and cannot be adjusted freely. There is a solution in the prior art, which is to arrange the antenna outside the SIM card module, such as on the shell of the mobile phone, but this method undoubtedly increases the cost of mobile phone design and the antenna arranged outside the SIM card module is also easily damaged .
发明内容Contents of the invention
本发明所要解决的技术问题在于，针对现有技术的上述不足，提出一种集成有尺寸不受电磁波波长限制且更加小型化的超材料射频天线的SIM卡及具有该SIM卡的射频识别系统。The technical problem to be solved by the present invention is to propose a SIM card integrated with a metamaterial radio frequency antenna whose size is not limited by the wavelength of electromagnetic waves and is more miniaturized, and a radio frequency identification system with the SIM card.
本发明解决其技术问题所采用的技术方案是，提出一种SIM卡，其包括：信号感应和接收模块、SIM卡主控模块、射频收发模块，还包括超材料射频天线，所述SIM卡主控模块处理所述信号感应和接收模块接收到的信号，所述SIM卡主控模块的指令和数据通过所述射频收发模块转换后通过所述超材料射频天线发送出去，所述射频收发模块还通过所述超材料射频天线接收外部设备的指令和数据并交由所述SIM卡主控模块处理；所述超材料射频天线包括第一介质基板以及覆盖于所述第一介质基板上的第二介质基板；所述第一介质基板一侧表面上设置有金属片以及围绕所述金属片设置的馈线，所述馈线以耦合方式馈入所述金属片，且所述金属片上镂空有微槽结构。The technical solution adopted by the present invention to solve its technical problems is to propose a SIM card, which includes: a signal sensing and receiving module, a SIM card main control module, a radio frequency transceiver module, and a metamaterial radio frequency antenna. The control module processes the signal received by the signal sensing and receiving module, the instructions and data of the SIM card main control module are sent through the metamaterial radio frequency antenna after being converted by the radio frequency transceiver module, and the radio frequency transceiver module also Receive instructions and data from external devices through the metamaterial radio frequency antenna and hand them over to the SIM card main control module for processing; the metamaterial radio frequency antenna includes a first dielectric substrate and a second substrate covered on the first dielectric substrate Dielectric substrate; a metal sheet and a feeder arranged around the metal sheet are arranged on one side of the first dielectric substrate, the feeder is fed into the metal sheet in a coupling manner, and a microgroove structure is hollowed out on the metal sheet .
进一步地，所述SIM卡还包括卡基板，所述信号感应和接收模块、所述SIM卡主控模块、所述射频收发模块和所述超材料射频天线均一体封装于所述卡基板内。Further, the SIM card further includes a card substrate, and the signal sensing and receiving module, the SIM card main control module, the radio frequency transceiver module and the metamaterial radio frequency antenna are all packaged in the card substrate.
进一步地，所述微槽结构包括互补式开口谐振环结构、互补式螺旋线结构、开口螺旋环结构、双开口螺旋环结构、互补式弯折线结构以及通过前面几种结构衍生、复合、组合或组阵得到的微槽结构。Further, the microgroove structure includes a complementary split resonant ring structure, a complementary helical wire structure, a split helical ring structure, a double split helical ring structure, a complementary meander line structure, and derivatives, composites, combinations or The microgroove structure obtained by arraying.
进一步地，所述第一介质基板由陶瓷材料、高分子材料、铁电材料、铁氧材料或铁磁材料制成；或者所述第一介质基板材质与所述卡基板材质相同。Further, the first dielectric substrate is made of ceramic material, polymer material, ferroelectric material, ferrite material or ferromagnetic material; or the material of the first dielectric substrate is the same as that of the card substrate.
进一步地，所述第二介质基板由陶瓷材料、高分子材料、铁电材料、铁氧材料或铁磁材料制成。Further, the second dielectric substrate is made of ceramic material, polymer material, ferroelectric material, ferrite material or ferromagnetic material.
进一步地，所述馈线与所述金属片之间设置有可短接点，所述可短接点电连接所述馈线与所述金属片使得所述馈线以感性耦合方式馈入所述金属片。Further, a short-circuit point is provided between the feeder line and the metal sheet, and the short-circuit point electrically connects the feeder line and the metal sheet so that the feeder line feeds into the metal sheet in an inductive coupling manner.
进一步地，所述微槽结构通过蚀刻、钻刻、光刻、电子刻或离子刻形成于所述金属片上。Further, the microgroove structure is formed on the metal sheet by etching, drilling, photolithography, electron etching or ion etching.
进一步地，所述SIM卡还包括接口模块，所述接口模块与所述SIM卡主控模块电连接使得所述SIM卡通过所述接口模块与移动终端交换数据。Further, the SIM card further includes an interface module, the interface module is electrically connected to the SIM card main control module so that the SIM card exchanges data with the mobile terminal through the interface module.
进一步地，所述移动终端使用GSM、CDMA、3G或4G通信网络的手机。Further, the mobile terminal uses a mobile phone of a GSM, CDMA, 3G or 4G communication network.
本发明还提供一种射频识别系统，包括阅读器以及应答器，所述应答器为上述任意一项所述的SIM卡。The present invention also provides a radio frequency identification system, including a reader and a transponder, and the transponder is the SIM card described in any one of the above items.
本发明将超材料射频天线应用于射频SIM卡中，由于超材料射频天线尺寸不受限于电磁波波长且不需要额外配置阻抗匹配网络，使得SIM卡上更易集成该天线，且该天线在SIM卡工作频段依然保持优良的性能和小型的尺寸。并且本发明SIM卡上的超材料射频天线还在第一介质基板上覆盖第二介质基板，两块介质基板之间形成耦合电容使得超材料射频天线工作在低频时无需增长馈线长度，进一步减小了超材料射频天线的体积。The present invention applies the metamaterial radio frequency antenna to the radio frequency SIM card. Since the size of the metamaterial radio frequency antenna is not limited to the wavelength of electromagnetic waves and does not require an additional impedance matching network, it is easier to integrate the antenna on the SIM card, and the antenna is on the SIM card. The working frequency band still maintains excellent performance and small size. Moreover, the metamaterial radio frequency antenna on the SIM card of the present invention also covers the second dielectric substrate on the first dielectric substrate, and a coupling capacitor is formed between the two dielectric substrates so that the metamaterial radio frequency antenna does not need to increase the length of the feeder when it works at a low frequency, further reducing The volume of the metamaterial RF antenna.
附图说明Description of drawings
图1为本发明SIM卡上超材料射频天线结构示意图；Fig. 1 is the structure schematic diagram of metamaterial radio frequency antenna on the SIM card of the present invention;
图2a为互补式开口谐振环结构的示意图；Figure 2a is a schematic diagram of a complementary split resonant ring structure;
图2b所示为互补式螺旋线结构的示意图；Figure 2b shows a schematic diagram of a complementary helical structure;
图2c所示为开口螺旋环结构的示意图；Figure 2c shows a schematic diagram of the open helical ring structure;
图2d所示为双开口螺旋环结构的示意图；Figure 2d shows a schematic diagram of the double-opened helical ring structure;
图2e所示为互补式弯折线结构的示意图；Figure 2e shows a schematic diagram of the complementary bend line structure;
图3a为图2a所示的互补式开口谐振环结构其几何形状衍生示意图；Fig. 3a is a schematic diagram of the geometric shape derivation of the complementary split resonator structure shown in Fig. 2a;
图3b为图2a所示的互补式开口谐振环结构其扩展衍生示意图；Fig. 3b is a schematic diagram of the extended derivation of the complementary split resonant ring structure shown in Fig. 2a;
图4a为三个图2a所示的互补式开口谐振环结构的复合后的结构示意图；Fig. 4a is a composite structural schematic diagram of three complementary split resonant ring structures shown in Fig. 2a;
图4b为两个图2a所示的互补式开口谐振环结构与图5b所示为互补式螺旋线结构的复合示意图；Fig. 4b is a composite schematic diagram of two complementary split resonant ring structures shown in Fig. 2a and a complementary helical wire structure shown in Fig. 5b;
图5为四个图2a所示的互补式开口谐振环结构组阵后的结构示意图；Fig. 5 is a structural schematic diagram of four complementary split resonator ring structures shown in Fig. 2a after being arrayed;
图6为本发明SIM卡的结构框图。Fig. 6 is a structural block diagram of the SIM card of the present invention.
具体实施方式detailed description
下面结合附图和实施例，对本发明技术方案作进一步描述。The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图6所示，图6为本发明SIM卡的结构框图。图6中，SIM卡包括信号感应和接收模块101、SIM卡主控模块102、射频收发模块103、超材料射频天线104以及接口模块105。本实施例中，上述各模块均一体封装于SIM卡卡基板100内。可以想象地，为使得空间更加紧凑，亦可以将部分模块设置于SIM卡卡基板100的相对表面上，其他模块设置于卡基板100内部。As shown in FIG. 6, FIG. 6 is a structural block diagram of the SIM card of the present invention. In FIG. 6 , the SIM card includes a signal sensing and receiving module 101 , a SIM card main control module 102 , a radio frequency transceiver module 103 , a metamaterial radio frequency antenna 104 and an interface module 105 . In this embodiment, the above-mentioned modules are integrally packaged in the SIM card substrate 100 . Conceivably, in order to make the space more compact, some modules can also be arranged on the opposite surface of the SIM card substrate 100 , and other modules can be arranged inside the card substrate 100 .
信号感应和接收模块101感应和接收外部的信号，通常为磁信号，并将该信号传输给SIM卡主控模块102，SIM卡主控模块102根据接收到的信号判断，当需要与外部设备通信时，SIM卡主控模块102发出指令和数据给射频收发模块103，射频收发模块103接收到SIM卡主控模块102发出的指令和数据后将指令和数据转化后通过超材料射频天线104发送出去。同时，超材料射频天线104还可接收外部的电磁信号并传输给射频收发模块103，由射频收发模块103转换后传输给SIM卡主控模块102。本实施例中，SIM卡还包括接口模块105，SIM卡主控模块102通过接口模块105与移动终端交换数据。本发明的移动终端可为使用GSM、CDMA、3G或4G通信网络的各种手机设备。The signal sensing and receiving module 101 senses and receives an external signal, usually a magnetic signal, and transmits the signal to the SIM card main control module 102, and the SIM card main control module 102 judges according to the received signal, when it needs to communicate with an external device , the SIM card main control module 102 sends instructions and data to the radio frequency transceiver module 103, and the radio frequency transceiver module 103 sends the instructions and data through the metamaterial radio frequency antenna 104 after receiving the instructions and data sent by the SIM card main control module 102 . At the same time, the metamaterial radio frequency antenna 104 can also receive external electromagnetic signals and transmit them to the radio frequency transceiver module 103 , and then transmit them to the SIM card main control module 102 after being converted by the radio frequency transceiver module 103 . In this embodiment, the SIM card further includes an interface module 105, and the SIM card main control module 102 exchanges data with the mobile terminal through the interface module 105. The mobile terminal of the present invention can be various mobile phone devices using GSM, CDMA, 3G or 4G communication networks.
本实施例中，信号感应和接收模块101、SIM卡主控模块102、射频收发模块103以及接口模块105均可使用常规的现有技术，其内部结构和工作方式为本领域技术人员所公知，且不是本发明主要发明技术要点，因此在此不做详细描述。In this embodiment, the signal sensing and receiving module 101, the SIM card main control module 102, the radio frequency transceiver module 103 and the interface module 105 can all use conventional prior art, and its internal structure and working method are known to those skilled in the art. And it is not the main technical gist of the invention, so it will not be described in detail here.
应用于移动支付领域的射频标准一般为低频频率，例如13.56MHZ或2.4GHZ，为了使SIM卡能工作于低频率，天线的作用尤为重要。然而根据传统天线设计方案，天线的长短是与波长成正比的，频率越低，波长越长从而导致天线体积越大。按照传统天线设计方案，工作频率仍以13.56MHZ或2.4GHZ为例，天线的厚度和长度均较大，很难实现在SIM卡上的应用。且为了保证天线的高性能，传统天线设计方案中一般还需要增加阻抗匹配网络。The radio frequency standard applied in the field of mobile payment is generally a low frequency frequency, such as 13.56MHZ or 2.4GHZ. In order to enable the SIM card to work at a low frequency, the role of the antenna is particularly important. However, according to the traditional antenna design scheme, the length of the antenna is directly proportional to the wavelength. The lower the frequency, the longer the wavelength, resulting in a larger antenna volume. According to the traditional antenna design scheme, the working frequency is still 13.56MHZ or 2.4GHZ as an example, the thickness and length of the antenna are relatively large, and it is difficult to realize the application on the SIM card. And in order to ensure the high performance of the antenna, it is generally necessary to add an impedance matching network in the traditional antenna design scheme.
超材料是由具有一定图案形状的人造微结构排布于基材上而构成，人造微结构不同的图案形状和尺寸结构使得超材料具有不同的介电常数和不同的磁导率从而使得超材料具有不同的电磁响应。其中，当该人造微结构处于谐振频段时，该人造微结构将表现出高度的色散特性，所谓高度的色散特性是指该人造微结构的阻抗、容感性、等效的介电常数和磁导率随着频率会发生剧烈的变化。Metamaterials are composed of artificial microstructures with a certain pattern shape arranged on a substrate. Different pattern shapes and size structures of artificial microstructures make metamaterials have different dielectric constants and different magnetic permeability, thus making metamaterials have different electromagnetic responses. Among them, when the artificial microstructure is in the resonant frequency band, the artificial microstructure will exhibit a high degree of dispersion characteristics. The so-called high dispersion characteristics refer to the impedance, capacitive inductance, equivalent permittivity and magnetic permeability of the artificial microstructure. The rate varies drastically with frequency.
本发明利用超材料的上述原理，设计一种超材料射频天线，其将微槽结构形成于金属片上，该金属片和馈线的耦合作用使得天线具有丰富的辐射特性从而省去阻抗匹配网络的设计并使得天线的尺寸不受限于所需响应电磁波的波长以实现天线的小型化。另外，本发明还在天线结构中加入第二介质基板，第二介质基板覆盖于第一介质基板上使得天线的分布电容增大。The present invention uses the above-mentioned principle of metamaterials to design a metamaterial radio frequency antenna, which forms a micro-groove structure on a metal sheet, and the coupling between the metal sheet and the feeder line makes the antenna have rich radiation characteristics, thereby eliminating the design of an impedance matching network And the size of the antenna is not limited to the wavelength of the required response electromagnetic wave to realize the miniaturization of the antenna. In addition, the present invention also adds a second dielectric substrate to the antenna structure, and the second dielectric substrate covers the first dielectric substrate to increase the distributed capacitance of the antenna.
本发明的核心在于超材料射频天线，以下详细描述本发明的超材料射频天线。The core of the present invention lies in the metamaterial radio frequency antenna, and the metamaterial radio frequency antenna of the present invention will be described in detail below.
如图1所示，图1为本发明SIM卡上超材料射频天线的结构示意图。为更清楚的表示本发明的结构，图1采用透视图画法。图1中，超材料射频天线包括第一介质基板1以及覆盖于该第一介质基板1上的第二介质基板2；该第一介质基板一侧表面上设置有金属片10以及围绕该金属片10设置的馈线11，该馈线11以耦合方式馈入该金属片10，且该金属片上10镂空有微槽结构12。As shown in FIG. 1 , FIG. 1 is a schematic structural diagram of a metamaterial radio frequency antenna on a SIM card of the present invention. In order to show the structure of the present invention more clearly, Fig. 1 adopts perspective drawing method. In Fig. 1, the metamaterial radio frequency antenna comprises a first dielectric substrate 1 and a second dielectric substrate 2 covered on the first dielectric substrate 1; a metal sheet 10 is arranged on one side surface of the first dielectric substrate and surrounding the metal sheet 10 is provided with a feeder 11, the feeder 11 feeds into the metal sheet 10 in a coupling manner, and the metal sheet 10 is hollowed out with a microgroove structure 12.
金属片10以及在金属片10上形成的微槽结构12使得金属片10构成一个等效介电常数按照洛仑兹材料谐振模型色散的电磁材料从而实现改变天线辐射特性的目的。图2a到图5给出了一系列可实现本发明目的的微槽结构拓扑图案。当应知微槽结构的设计种类有无穷多种，并不局限于图2a到图5的举例，但基本都是谐振结构，这里微槽结构的设计可以根据金属片的拓扑特性，如衍生与复合进行修改。图2a为互补式开口谐振环结构；图2b为互补式螺旋线结构；图2c为开口螺旋结构；图2d为双开口螺旋环结构；图2e为互补式弯折结构。微槽结构还可以是上述图2a至图2e结构的衍生、复合或者组阵。衍生分为两种，一种是几何形状衍生，另一种是扩展衍生，此处的几何形状衍生是指功能类似、形状不同的结构衍生，例如由方框类结构衍生到曲线类结构、三角形类结构及其它不同的多边形类结构；此处的扩展衍生即在图2a至图2e的基础上开设新的槽以形成新的微槽结构；以图2a所示的互补式开口谐振环结构为例，图3a为其几何形状衍生示意图，图3b为其几何形状衍生示意图。此处的复合是指，图2a至图2e的微槽结构多个叠加形成一个新的微槽结构，如图4a所示，为三个图2a所示的互补式开口谐振环结构复合后的结构示意图；如图2b所示，为两个图2a所示的互补式开口谐振环结构与图2b所示为互补式螺旋线结构共同复合后的结构示意图。此处的组阵是指由多个图2a至图2e所示的微槽结构在同一金属片上阵列形成一个整体的微槽结构，如图5所示，为多个如图2a所示的互补式开口谐振环结构组阵后的结构示意图。本实施例中以图2c所示的开口螺旋环结构举例说明。The metal sheet 10 and the microgroove structure 12 formed on the metal sheet 10 make the metal sheet 10 constitute an electromagnetic material whose equivalent dielectric constant is dispersed according to the Lorentz material resonance model, so as to achieve the purpose of changing the radiation characteristics of the antenna. Figures 2a to 5 show a series of topological patterns of microgroove structures that can realize the purpose of the present invention. It should be known that there are infinite kinds of design types of micro-groove structures, not limited to the examples shown in Fig. 2a to Fig. 5, but they are basically resonant structures. compound to modify. Fig. 2a is a complementary split resonant ring structure; Fig. 2b is a complementary helical wire structure; Fig. 2c is a split helical structure; Fig. 2d is a double split helical ring structure; Fig. 2e is a complementary bent structure. The micro-groove structure can also be a derivative, composite or array of the above-mentioned structures in Fig. 2a to Fig. 2e. There are two types of derivation, one is geometric shape derivation, and the other is extended derivation. The geometric shape derivation here refers to the derivation of structures with similar functions but different shapes, such as deriving from a box-like structure to a curve-like structure, triangle class structure and other different polygonal class structures; the extended derivation here is to open a new groove on the basis of Fig. 2a to Fig. 2e to form a new micro-groove structure; the complementary split resonator ring structure shown in Fig. 2a is For example, Fig. 3a is a schematic diagram of its geometric shape derivation, and Fig. 3b is a schematic diagram of its geometric shape derivation. Recombination here means that multiple microgroove structures in Figure 2a to Figure 2e are superimposed to form a new microgroove structure, as shown in Figure 4a, which is the composite of three complementary split resonator ring structures shown in Figure 2a Structural schematic diagram; as shown in FIG. 2b, it is a structural schematic diagram of two complementary split resonant ring structures shown in FIG. 2a and a complementary helical wire structure shown in FIG. 2b. The array here refers to a plurality of micro-groove structures shown in Figure 2a to Figure 2e are arrayed on the same metal sheet to form an integral micro-groove structure, as shown in Figure 5, which is a plurality of complementary micro-groove structures as shown in Figure 2a Schematic diagram of the structure of the type split resonator ring structure after arraying. In this embodiment, the split helical ring structure shown in FIG. 2c is used as an example for illustration.
馈线11通过可短接点50与金属片10电连接从而与金属片10形成感性耦合以对其进行馈电。可短接点50的位置可以是任意位置。另外馈线10对金属片10馈电的方式还可以是容性耦合馈电方式，即馈线10围绕金属片10设置而不与金属片10接触。第二介质基板2覆盖于第一介质基板1的方式为多样的，可采用贴附、吸附或者压制等方式。The feeder 11 is electrically connected to the metal sheet 10 through the short-circuit point 50 so as to form an inductive coupling with the metal sheet 10 to feed it. The position of the shortable contact 50 may be any position. In addition, the feeding method of the feeder 10 to the metal sheet 10 may also be a capacitive coupling feeding method, that is, the feeder 10 is arranged around the metal sheet 10 without contacting the metal sheet 10 . There are various ways for the second dielectric substrate 2 to cover the first dielectric substrate 1 , such as sticking, adsorption or pressing.
由天线射频原理可知，电长度是描述电磁波波形变化频繁程度的物理量，电长度＝物理长度/波长。当天线工作于低频时，低频对应的电磁波波长较长，在需要保持电长度不变的前提下，增长物理长度就是必要的选择。然而增大物理长度必然不能满足天线小型化的要求。本发明在第一介质基板1上覆盖设置有第二介质基板2，当天线在接收或者发射电磁波时，电磁波均需要通过第二介质基板2才能被发射或者被接收从而使得天线整体的分布电容增大。根据公式可知，增大分布电容能有效降低天线工作频率使得在不增加物理长度的前提下就可保持电长度不变。并且通过改变第二介质基板2与第一介质基板1的材质即可改变天线整体的分布电容从而针对不同的频率均可达到在不改变物理长度的前提下改变电长度的目的，这样就可以在极小的空间内设计出工作在极低工作频率下的射频天线。According to the principle of antenna radio frequency, the electrical length is a physical quantity that describes the frequency of electromagnetic wave waveform changes, and the electrical length = physical length/wavelength. When the antenna works at a low frequency, the electromagnetic wave corresponding to the low frequency has a longer wavelength. On the premise of keeping the electrical length unchanged, increasing the physical length is a necessary choice. However, increasing the physical length cannot meet the requirements of antenna miniaturization. In the present invention, the first dielectric substrate 1 is covered with the second dielectric substrate 2. When the antenna is receiving or emitting electromagnetic waves, the electromagnetic waves need to pass through the second dielectric substrate 2 to be emitted or received, thereby increasing the overall distributed capacitance of the antenna. Big. According to the formula It can be seen that increasing the distributed capacitance can effectively reduce the operating frequency of the antenna so that the electrical length can be kept constant without increasing the physical length. And by changing the material of the second dielectric substrate 2 and the first dielectric substrate 1, the overall distributed capacitance of the antenna can be changed, so that the purpose of changing the electrical length can be achieved for different frequencies without changing the physical length, so that it can be used in An RF antenna working at a very low operating frequency is designed in a very small space.
本发明的第一介质基板的材质可选用陶瓷、高分子材料、铁电材料、铁氧材料或铁磁材料；其中高分子材料优选聚四氟乙烯、F4B或FR4。更加优选地，本发明第一介质基板即由SIM卡本身的卡基板100构成。本发明的第二介质基板的材质可选用陶瓷、高分子材料、铁电材料、铁氧材料或铁磁材料；其中高分子材料优选聚四氟乙烯、F4B或FR4。The material of the first dielectric substrate of the present invention can be selected from ceramics, polymer materials, ferroelectric materials, ferrite materials or ferromagnetic materials; wherein the polymer materials are preferably polytetrafluoroethylene, F4B or FR4. More preferably, the first medium substrate of the present invention is constituted by the card substrate 100 of the SIM card itself. The material of the second dielectric substrate of the present invention can be selected from ceramics, polymer materials, ferroelectric materials, ferrite materials or ferromagnetic materials; wherein the polymer materials are preferably polytetrafluoroethylene, F4B or FR4.
在本发明中，关于天线的加工制造，只要满足本发明的设计原理，可以采用各种制造方式。最普通的方法是使用各类印刷电路板(PCB)的制造方法，金属化的通孔，双面覆铜的PCB制造均可满足本发明的加工要求。除此加工方式，还可以根据实际的需要引入其它加工手段，比如RFID(RFID是RadioFrequencyIdentification的缩写，即射频识别技术，俗称电子标签)中所使用的导电银浆油墨加工方式、各类可形变器件的柔性PCB加工、铁片天线的加工方式以及铁片与PCB组合的加工方式。其中，铁片与PCB组合加工方式是指利用PCB的精确加工来完成芯片微结构部分的加工，用铁片来完成其它辅助部分。In the present invention, regarding the processing and manufacturing of the antenna, as long as the design principle of the present invention is satisfied, various manufacturing methods can be adopted. The most common method is to use various printed circuit board (PCB) manufacturing methods, metallized through holes, and double-sided copper-clad PCB manufacturing can all meet the processing requirements of the present invention. In addition to this processing method, other processing methods can also be introduced according to actual needs, such as the conductive silver paste ink processing method used in RFID (RFID is the abbreviation of Radio Frequency Identification, that is, radio frequency identification technology, commonly known as electronic tags), and various deformable devices. The flexible PCB processing, the processing method of the iron sheet antenna and the processing method of the combination of the iron sheet and the PCB. Among them, the combined processing method of iron sheet and PCB refers to the use of precise processing of PCB to complete the processing of the microstructure part of the chip, and use iron sheet to complete other auxiliary parts.
另外本发明还提供一种射频识别系统，包括阅读器以及应答器，所述应答器为上述的SIM卡。In addition, the present invention also provides a radio frequency identification system, including a reader and a transponder, and the transponder is the above-mentioned SIM card.
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, and these all belong to the protection of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172713.2ACN102810177B (en) | 2011-06-24 | 2011-06-24 | A kind of SIM card and radio-frequency recognition system thereof |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110172713.2ACN102810177B (en) | 2011-06-24 | 2011-06-24 | A kind of SIM card and radio-frequency recognition system thereof |
| Publication Number | Publication Date |
|---|---|
| CN102810177A CN102810177A (en) | 2012-12-05 |
| CN102810177Btrue CN102810177B (en) | 2016-01-13 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110172713.2AExpired - Fee RelatedCN102810177B (en) | 2011-06-24 | 2011-06-24 | A kind of SIM card and radio-frequency recognition system thereof |
| Country | Link |
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| CN (1) | CN102810177B (en) |
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| CN1906807A (en)* | 2004-04-09 | 2007-01-31 | 古河电气工业株式会社 | Compact antenna |
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