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A kind of sd card and its radio frequency identification system

A radio frequency antenna and card substrate technology, which is applied in the field of radio frequency identification systems, can solve the problems that do not conform to the development trend of miniaturization of mobile devices, large antenna volume, low radio frequency, etc., and achieve large-scale application and low operating frequency And broadband multi-mode, to achieve the effect required for size assembly

Active Publication Date: 2016-05-04
KUANG CHI INST OF ADVANCED TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low radio frequency of mobile payment, in the current technical solution, the traditional antenna design will lead to a large antenna size, which does not meet the development trend of miniaturization of mobile devices

Method used

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  • A kind of sd card and its radio frequency identification system
  • A kind of sd card and its radio frequency identification system
  • A kind of sd card and its radio frequency identification system

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Image 6 Shown is a schematic structural diagram of the SD card of the present invention. Image 6 Among them, the SD card includes a card substrate 100 , and a controller 101 , a smart card chip 102 , a memory 103 and a metamaterial radio frequency antenna 104 disposed on one side of the card substrate 100 . Wherein, the smart card chip 102 and the memory 103 are connected to the controller 101 respectively, and the smart card chip 102 is connected to the metamaterial radio frequency antenna 104 through corresponding antenna pins. The controller 101 is used to identify the operation of the external device on the SD card. The smart card chip 102 can receive the signal transmitted by the metamaterial radio frequency antenna 104, and send its own application data information to the metamaterial radio frequency in the for...

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Abstract

The invention provides an SD card (secure digital memory card). The SD card comprises a controller, an intelligent card chip, a memory and a metamaterial radio frequency antenna; the intelligent card chip and the memory are connected with the controller; the metamaterial radio frequency antenna is connected with the intelligent card chip; the metamaterial radio frequency antenna comprises a first medium substrate, a feeder line, a metal sheet attached on one surface of the first medium substrate and a second medium substrate for covering the metal sheet; the feeder line is fed in the metal sheet in a coupled manner; and a micro-slot structure is curved on the metal sheet. According to the SD card, the metamaterial radio frequency antenna which can be small-sized easily is adopted by the SD card, so that the mobile payment function and other functions can be realized without being limited by operators; and the cost of the SD card can be saved, and the large-scale application of the SD card can be realized.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to an SD card and a radio frequency identification system with the SD card. Background technique [0002] With the development of the economy and the rapid changes of information technology, my country has more than 700 million users of mobile devices, such as mobile phones, PDAs, and tablet computers. Adding payment functions to mobile 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. . [0003] Currently developed mobile payment devices include RFID-SIM cards, that is, radio frequency identification SIM cards. It realizes the functions of short-distance identification and financial payment on the mobile phone through the built-in short-distance identificati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077G06K7/00
Inventor 刘若鹏徐冠雄
Owner KUANG CHI INST OF ADVANCED TECH
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