Antenna apparatus and communication apparatus

A technology of antenna device and communication device, which is applied in the direction of antenna support/mounting device, antenna, antenna parts, etc., which can solve the problem of less magnetic flux of the loop coil and achieve the effect of maintaining communication characteristics

Active Publication Date: 2014-07-23
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the antenna module incorporated into electronic equipment such as a mobile phone, since the metal such as the substrate inside the equipment or the backup battery receives the eddy current generated by the magnetic field from the reader, the magnetic flux from the reader is bounced. back, so less magnetic flux reaches the toroid

Method used

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  • Antenna apparatus and communication apparatus
  • Antenna apparatus and communication apparatus
  • Antenna apparatus and communication apparatus

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Embodiment Construction

[0025] Hereinafter, modes for implementing the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited only to the following embodiment, It is obvious that various changes can be added in the range which does not deviate from the summary of this invention.

[0026] The communication device to which the present invention is applied is a device that is assembled in electronic equipment and can perform communication by receiving a magnetic field transmitted from a transmitter, for example, it is assembled in such as figure 1 The wireless communication system 100 for RFID (Radio Frequency Identification) shown is used.

[0027] The wireless communication system 100 is composed of a communication device 1 to which the present invention is applied and a reader / writer 120 for accessing the communication device 1 . Here, the communication device 1 and the reader / writer 120 are arranged to face each other on the xy plane...

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Abstract

Provided is a communication apparatus, with which, while maintaining communication characteristics, a housing of an electronic apparatus can be reduced in size and thickness when the communication apparatus is assembled to the electronic apparatus. The communication apparatus is provided with: an antenna substrate (11) having an antenna coil (11a) formed thereon, said antenna coil to be inductively coupled with a reader writer (120); and a magnetic sheet (13), which draws a magnetic field to the antenna coil (11a), said magnetic field having been transmitted from the reader writer (120). In the direction in which the magnetic sheet (13) is inserted into a center portion (11c) of the antenna coil (11a) formed on the antenna substrate (11), both the end portions (13a, 13b) of the magnetic sheet (13) are positioned further toward the center portion (11c) than both the end portions (11d, 11e) of the antenna coil (11a).

Description

technical field [0001] The present invention relates to an antenna device and a communication device that are incorporated into electronic equipment and that receive a magnetic field transmitted from a transmitter to enable communication. [0002] This application claims priority based on Japanese Patent Application No. Japanese Patent Application No. 2011-260640 for which it applied in Japan on November 29, 2011, By referring this application, this application is used. Background technique [0003] Antenna modules for RFID (Radio Frequency Identification: Radio Frequency Identification) are used in electronic devices such as mobile phones in order to incorporate a short-range contactless communication function. [0004] This antenna module communicates with an antenna coil mounted on a transmitter such as a reader / writer by inductive coupling. That is, in this antenna module, the antenna coil receives a magnetic field from the reader / writer and converts the magnetic field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q7/06G06K19/07G06K19/077H01Q1/24H01Q1/38
CPCH01Q1/38H01Q1/2225G06K19/07771H01Q7/06H01Q1/24
Inventor 斋藤宪男杉田悟池田义人
Owner DEXERIALS CORP
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