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Transmission device for near field communication device and near field communication device

A near-field communication and transmission device technology, applied in near-field transmission systems, transmission systems, electrical components, etc., can solve the problems of high-frequency signal transmission loss, affecting the convenience of sensing distance, low power, etc., to reduce transmission loss, Consistent impedance and noise reduction effect

Active Publication Date: 2015-02-11
WISTRON NEWEB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although near-field communication technology is used for short-distance wireless transmission, due to its low power, it is more likely to cause loss during high-frequency signal transmission, thus affecting the sensing distance and the convenience of use

Method used

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  • Transmission device for near field communication device and near field communication device
  • Transmission device for near field communication device and near field communication device
  • Transmission device for near field communication device and near field communication device

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Embodiment Construction

[0023] Please refer to figure 1 , figure 1 It is a schematic diagram of a near field communication device 10 according to an embodiment of the present invention. The near field communication device 10 includes an operating circuit 100 , an antenna 102 and a transmission device 104 for short-distance high-frequency wireless communication. The operating circuit 100 can process the high-frequency signal induced by the antenna 102 or transmit the high-frequency signal through the antenna 102, and the transmission device 104 is interposed between the operating circuit 100 and the antenna 102 to transmit the high-frequency signal output by the operating circuit 100 transmit to the antenna 102 , or transmit the high-frequency signal induced by the antenna 102 to the operating circuit 100 . The transmission device 104 includes a matching circuit 106 , a connection interface 108 , a first transmission line 110 and a second transmission line 112 . The first transmission line 110 is e...

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Abstract

Provided is a transmission device for a near field communication device and a near field communication device. The transmission device comprises a matching circuit, a connection interface, a first transmission line, and a second transmission line. The connection interface is used for being connected with an operation circuit of the near field communication device and is provided with a first width. The first transmission line is electrically connected between an antenna and the matching circuit of the near field communication device. The second transmission line is electrically connected between the connection interface and the matching circuit and comprises a line width gradually-increasing segment and an equal line width segment. The width of the line width gradually-increasing segment of the second transmission line is gradually increased from the first width to a second width. The width of the equal line width segment of the second transmission line is approximately the second width. The second width is more than the first width and is related to first width. According to the transmission device, impedance between the transmission device and the antenna is consistent and noise between the transmission device and the operation circuit is reduced such that high-frequency signal transmission loss is decreased and transmission efficiency is improved.

Description

technical field [0001] The invention relates to a transmission device and a near-field communication device for a near-field communication device, in particular to a transmission device and a near-field communication device for a near-field communication device that can reduce transmission loss of high-frequency signals. Background technique [0002] Near Field Communication (Near Field Communication) technology is a short-range high-frequency wireless communication technology that allows electronic devices to conduct contactless short distances (within 20 cm (cm)) in the 13.56MHz frequency band. ) data transmission, and thus has been widely used in portable electronic devices to provide users with more convenient e-commerce services. [0003] Generally speaking, a near-field communication device includes three parts: an operating circuit (such as a frequency modulation component, a filter component, a computing chip, a memory, etc.), a matching circuit, and an antenna. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00
Inventor 田玫彭智群陈良恺吕金狮
Owner WISTRON NEWEB
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