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Single-slit near-field communication antenna device for metal environment

A near-field communication antenna and antenna device technology, applied in the field of communication, can solve the problems of electromagnetic signal attenuation, the antenna cannot read signals, etc., and achieve the effects of low cost, flexible and convenient structure design, and improved communication efficiency

Pending Publication Date: 2016-08-17
ZHONGTIANXUN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Near field communication technology relies on electromagnetic field coupling for energy transmission, and the complex metal environment in personal mobile devices usually severely attenuates electromagnetic signals, and the antenna cannot read signals

Method used

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  • Single-slit near-field communication antenna device for metal environment
  • Single-slit near-field communication antenna device for metal environment
  • Single-slit near-field communication antenna device for metal environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] figure 1 It is a top view of the antenna device in the embodiment. The antenna device is composed of a coiled metal conductor 1, a flexible dielectric substrate material 2 attached thereto, and a magnetically permeable material 3 covered on its surface. The magnetically permeable material 3 is a ferrite material.

[0021] In this embodiment, the coiled metal conductor 1 has 6 turns, but in practice, the number of turns of the metal coil is determined by the required inductance and adjusted according to actual needs.

[0022] The upper line width and line spacing of the metal coil are smaller, the lower line width and line spacing are larger, and the left and right line widths and line spacing are in the middle. The actual line width and line spacing are adjusted according to the required inductance and the required DC resistance.

[0023] The area of ​​the dielectric substrate material 2 is slightly larger than that of the metal coil, and covers the metal coil.

[002...

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PUM

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Abstract

The invention discloses a single-slit near-field communication antenna device for a metal environment. The antenna device comprises a curly surrounding metal conductor, a flexible dielectric substrate material attached to the metal conductor and a magnetic conductive material that covers the surface of the dielectric substrate material; the dielectric substrate material is partially or completely covered by the magnetic conductive material which is arranged near an internal conductor layer of communication equipment; the metal conductor is arranged near a shell of the communication equipment; a single slit is formed in the shell of the communication equipment; and the height of the single slit penetrates through the shell of the communication equipment. By the single-slit near-field communication antenna device for the metal environment, the reading and writing problems of a near-field antenna in the metal environment can be solved; the structural design of the communication equipment can be relatively flexible and convenient; and the communication efficiency of the equipment is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a single-slot near-field communication antenna device used in a metal environment. Background technique [0002] NFC (Near Field Communication) is a short-range wireless communication technology with a working frequency of 13.56MHz and transmitted through electromagnetic induction coupling. The communication distance is generally 0-20cm (usually within 10cm), which has the characteristics of short distance and low energy consumption, and is suitable for payment and information exchange. [0003] In recent years, with the popularization of personal handheld devices, NFC has become more and more feasible as a personal mobile device payment solution. The metallization of personal handheld devices has also become a trend. The metal coverage of the back cover is getting wider and wider, and the clearance area left for the antenna is getting smaller and smaller. Near field comm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q1/38
Inventor 朱嘉琪万志明郑昊喻佳班永灵许超苏永红方克林
Owner ZHONGTIANXUN COMM TECH
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