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Near field communication or wireless charging antenna device and electronic device

A technology of wireless charging and near-field communication, applied in the field of near-field communication, which can solve the problem of metal shells blocking the antenna radiation electromagnetic field, etc., and achieve the effect of flexible opening scheme, good consistency, and stable antenna resonant frequency

Inactive Publication Date: 2015-07-08
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is how to solve the problem that the metal shell blocks the antenna radiation electromagnetic field

Method used

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  • Near field communication or wireless charging antenna device and electronic device
  • Near field communication or wireless charging antenna device and electronic device
  • Near field communication or wireless charging antenna device and electronic device

Examples

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Embodiment Construction

[0041] The following will combine Figure 1 to Figure 16 The near-field communication or wireless charging device and electronic equipment provided by the present invention are described in detail through several embodiments, which are optional embodiments of the present invention. It can be considered that those skilled in the art will not change the scope of the spirit and content of the present invention. It can be modified and polished within.

[0042] Example group 1

[0043] Please refer to Figure 1 to Figure 11 The present invention provides an antenna device for near-field communication or wireless charging, including a metal body 1 and an antenna 3 located on one side of the metal body 1. From the perspective of electronic equipment, it should be considered that the antenna 3 is located on the metal body 1 The antenna 3 includes a coil 31, the edge of the metal body 1 is provided with an opening 2, and the orthographic projection of the middle hollow area 36 of the...

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Abstract

The invention provides a near field communication or wireless charging antenna device and an electronic device based on the antenna device. On one hand, a breakover current is formed between a coil and a metal body, and a magnetic field is generated on the metal body again through the breakover current and can do work; on the other hand, compared with the scheme that in the prior art, energy is coupled to a metallic conductor in a space coupling mode, the energy exchange efficiency is higher; in other words, the electromagnetic coupling energy transmission efficiency is lower than the energy transmission efficiency in a direct current breakover mode, and the communication capacity of the near field communication or wireless charging antenna device under the conditions of the same metallic area, the same coil area and the same device environment is higher.

Description

technical field [0001] The invention relates to the field of near-field communication, in particular to an antenna device for near-field communication or wireless charging and electronic equipment based on the antenna device. Background technique [0002] Nowadays, near-field wireless communication technologies such as RFID / NFC have been widely used in data exchange communication between electronic devices or between electronic devices and RFID / NFC readers. Communication antennas are installed on the devices to send and receive electromagnetic wave signals; wireless charging The transmit and receive ends of the device also have antenna modules. [0003] On many devices, due to the strong structure and good visual effect of the metal shell, the design of the metal shell has been used more and more; because the metal shell usually blocks the radiated electromagnetic field of the antenna, which brings the RFID or NFC antenna The design challenge has greatly reduced the antenna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/44H01Q7/00H01Q7/06H01Q1/22H02J17/00H05K5/02H05K5/04H02J50/12
Inventor 张国辉王维董孩李沈林军陈德智
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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