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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

Inactive Publication Date: 2016-05-18
DEXERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the metal wire 207 needs to connect the coupling electrode 208 and the stub 203 at a predetermined position, there are also problems in the process of requiring positional alignment accuracy during production.

Method used

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  • Antenna device and communication device
  • Antenna device and communication device
  • Antenna device and communication device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0049] As an antenna device incorporated in such a communication system 100, for figure 2 The high-frequency coupler 10 of the first embodiment as shown will be described.

[0050] exist figure 2 In the figure, in order to easily understand the connection state of the line 12 and the ground 13 described later, it is shown through the protective film 15 .

[0051] like figure 2 As shown, the high-frequency coupler 10 has a structure in which a ground 13 is formed on one surface of a dielectric substrate 11 and ring-shaped wires 12 are formed at a constant distance on the outer periphery thereof.

[0052] The wire 12 functions as a coupling electrode 17 , and one end of the wire 12 faces the ground 13 to serve as the power supply unit 14 to be connected to the above-mentioned transmission and reception circuit unit 104 , and the other end of the wire 12 is electrically connected to the ground 13 . In addition, the wiring length of the wire 12 functioning as the coupling el...

no. 2 Embodiment approach

[0073] Next, as an antenna device incorporated in such a communication system 100, Image 6 The high-frequency coupler 20 of the second embodiment as shown will be described.

[0074] exist Image 6 In the figure, the winding state of the coil 26 described later is shown through the dielectric substrate 21 for easy understanding.

[0075] The high-frequency coupler 20 includes a dielectric substrate 21 and a coil 26 to which coils 26 a and 26 b each having a length equal to approximately 1 / 2 of the communication wavelength are electrically connected, and a connection to the transmission / reception circuit unit 104 is formed at both ends of the coil 26 Connection terminal 28 for use. In the coil 26, the polarities of the signal levels are reversed at the center portions 26a1 and 26b1 of the lines of the coils 26a and 26b, that is, at positions separated from one end of the coil 26 by 1 / 4 and 3 / 4 of the communication wavelength. becomes high in the state of , and functions as ...

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PUM

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q7/00H01Q1/38H01Q11/04H04B5/02H04B5/48
CPCH01Q1/38H01Q7/00H04B5/22H04B5/20H01Q11/04
Inventor 久村达雄
Owner DEXERIALS CORP
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