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Micro SD card used for mobile payment and integrated with coil of 13.56MHz

A technology of mobile payment and coil, which is applied in the direction of recording carriers, instruments, computer parts, etc. used by machines, can solve the problems of antenna volume and radiation affecting work efficiency, etc., to increase the magnetic flux accepted, reduce the space, and increase the inductance volume effect

Inactive Publication Date: 2012-08-22
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When used in mobile phones, mp3 and other electronic products, the size and radiation of the antenna will seriously affect its work efficiency

Method used

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  • Micro SD card used for mobile payment and integrated with coil of 13.56MHz
  • Micro SD card used for mobile payment and integrated with coil of 13.56MHz
  • Micro SD card used for mobile payment and integrated with coil of 13.56MHz

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Experimental program
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Embodiment Construction

[0015] The present invention will be further described below in conjunction with drawings and embodiments.

[0016] Such as figure 1 Shown is a structural principle diagram of the present invention, including an oscillating coil L and a tuning capacitor C, and the oscillating coil L and the tuning capacitor C are connected in parallel. The present invention uses an oscillating coil L to receive electromagnetic field energy, and uses a tuning capacitor C to adjust the resonant frequency to 13.56MHZ.

[0017] Such as figure 2 , image 3 , Figure 4 As shown, it includes an oscillating coil L, a tuning capacitor C, and a plurality of carrier boards 1; the oscillating coil L and the tuning capacitor C are connected in parallel and arranged on one side of the carrier board, and the oscillating coil L is integrated on the front and back of the same carrier board 1, the structure The same multiple carrier boards 1 are sequentially packaged on one side of the micro SD card. After...

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PUM

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Abstract

The invention discloses a micro SD card used for mobile payment and integrated with a coil of 13.56MHz. The micro SD card comprises an oscillating coil L, a tuning capacitor C and a plurality of carrier boards; after being connected in parallel, the oscillating coil L and the tuning capacitor C are arranged on one side of the carrier boards, the oscillating coil L is integrated on positive and negative sides of a same carrier board, the plurality of carrier boards of the same structure are packaged on one side of the micro SD card sequentially, pins at the two ends after the capacitors of each carrier board are connected in series are respectively connected with a data pin and a grounding pin of the micro SD card via feeder lines. By adopting the integration technology, the oscillating coil and the tuning capacitor are packaged in the micro SD card, thus reducing the space occupied by the system and enhancing the working efficiency. The oscillating coil adopts a form of two-sided wiring, and the multilayer carrier boards are adopted to enhance the inductance value and received magnetic flux, thus leading the application thereof in the mobile payment field to be more convenient.

Description

technical field [0001] The invention relates to a micro SD card integrated with a 13.56MHz coil for mobile payment. Background technique [0002] At present, the mobile payment systems used in the commercial field are all based on the 13.56MHz near-field coupling communication system. Its antenna has the disadvantages of being bulky and not suitable for radiation. In recent years, with the continuous advancement of RFID technology, mobile payment has gradually been widely used. When used in mobile phones, mp3 and other electronic products, the size and radiation of the antenna will seriously affect its work efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a microSD card integrated with a 13.56MHz coil for mobile payment. The oscillating coil is fabricated on a carrier board of the same size as the micro SD card through integration technology, and encapsulated in the micro SD card through SIP packaging technology middle. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/077
Inventor 申建华皇甫江涛冉立新
Owner ZHEJIANG UNIV