Antenna device and communication device

An antenna device, information communication technology, applied in the direction of antenna, loop antenna, electric long antenna, etc., to achieve the effect of high degree of freedom and good communication characteristics
CN103329352BInactive Publication Date: 2016-05-18DEXERIALS CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DEXERIALS CORP
Publication Date
2016-05-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides an antenna device having a structure that can achieve a balance between good communication characteristics and mechanical strength, and is advantageous in both miniaturization and low profile. In an antenna device for performing information communication by performing electromagnetic field coupling between a pair of opposing electrodes using a predetermined communication wavelength, it is provided with: a coupling electrode (17) formed on a dielectric substrate (11), capable of communicating with other antenna devices Electromagnetic field coupling is performed on the electrodes for communication, and the coupling electrode (17) has: a line (12), which is formed on a dielectric substrate with a length of 1 / 2 of the communication wavelength; and a ground (13), connected to the line (12) The line central part (12a) faces the dielectric substrate (11) in the plane direction and is electrically connected to the line (12), and the coupling electrode (17) is connected to the extension of the line central part (12a) and the ground (13). The electrodes of other antenna devices arranged on the line perform electromagnetic field coupling.
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Description

technical field

[0001] The present invention relates to a communication device that performs information communication by performing electromagnetic field coupling between a pair of opposing electrodes using a predetermined communication wavelength, and a communication device incorporating the antenna device.

[0002] This application claims priority based on Japanese Patent Application No. 2011-023048 filed on February 4, 2011 and Japanese Patent Application No. 2011-148566 filed on July 4, 2011 in Japan, and is incorporated by reference These applications are hereby incorporated by reference into the present application. Background technique

[0003] In recent years, systems for wirelessly transmitting data such as music and images are being developed between electronic devices such as computers and small portable terminals without using cables or media. Among such wireless transmission systems, there is a wireless transmission system capable of realizing high-speed trans...

Claims

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