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Communication device and high-frequency coupler

A technology for communication devices and high-frequency signals, which is applied in connection devices, near-field transmission systems using capacitive coupling, instruments, etc., can solve problems such as reducing the height of weak UWB communication devices, and achieve the purpose of suppressing the deterioration of electrical characteristics and suppressing electrical characteristics , low height effect

Inactive Publication Date: 2010-10-06
SONY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the above-mentioned non-contact IC tag, when realizing the communication device on the information device utilized, an important technical problem is to reduce the height of the weak UWB communication device

Method used

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  • Communication device and high-frequency coupler
  • Communication device and high-frequency coupler
  • Communication device and high-frequency coupler

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Experimental program
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Embodiment Construction

[0050] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0051] First, the working principle of short-distance high-speed wireless communication using weak UWB communication technology will be described.

[0052] figure 1 The structure of the short-distance high-speed wireless communication system using the weak UWB communication technology of the electric field coupling is schematically illustrated. exist figure 1 Among them, the transmitter 10 and the receiver 20 respectively have a coupling electrode 14 and a coupling electrode 24 for transmission and reception. These coupling electrodes 14 and 24 are arranged to face each other and are separated from each other by, for example, 3 cm, thereby allowing electric field coupling. When transmission is requested from a higher-level application, the transmission circuit unit 11 on the transmitter 10 generates a high-frequency transmission signal such as a UWB signal based ...

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Abstract

A communication device includes a communication circuit unit, a transmission path, a ground, a coupling electrode, and a resonating unit. The resonating unit includes a first resonating unit connected to the transmission path and a second resonating unit having one end connected to the first resonating unit and another end short-circuited to the ground, the second resonating unit having terminals of the coupling electrode connected thereto. A microdipole is formed of a line segment connecting a center of charges stored in the coupling electrode and a center of mirror-image charges stored in the ground. The high-frequency signal is transmitted to a distant side disposed so as to face the communication device with an angle [theta] formed relative to a direction of the microdipole being approximately 0 degree.

Description

technical field [0001] The present invention relates to a communication device and a high-frequency coupler for short-distance large-capacity data transmission through a weak UWB communication technology using a high-frequency wide band, and more particularly, the present invention relates to a low-height communication device and a high-frequency coupler. Background technique [0002] Contactless communication has become widely available as a medium for authenticating information, electronic money, and other valuable information. Examples of IC card standards conforming to ISO / IEC 14443 include Type A, Type B, and FeliCa . In addition, Near Field Communication (NFC) developed by Sony Corporation and Koninklijke Philips Electronics N.V. is compatible with Type A, Type B, and FeliCa The RFID standard defines the specifications of the NFC communication device that communicates with each IC card (reader / writer). In NFC, using a waveband of 13.56 MHz, non-contact two-way com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00G06K19/07G06K19/077H01P1/203H01P5/02H01Q1/50H01Q9/28H04B5/02
CPCH01Q9/0407H04B5/02H01P5/028H04B5/22H04B5/48
Inventor 和城贤典
Owner SONY GRP CORP
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