Overview of Standards and Technical Reports

Overview of ARIB Standards (STD-T113)

1. Overview

STD Number ARIB STD-T113
Standard Name Wireless Power Transmission Systems
Enactment Date 07.03.2015
General Description

This standard specifies wireless power transmission (WPT) systems which enable quick and easy charging.

This standard is composed of two parts. In part 1, it specifies the Capacitive Coupling WPT System using 400 kHz electromagnetic waves for the purpose of electrical power charging or electrical power feeding to mobile devices. And in part 2, it specifies the Magnetic Resonance Coupling WPT System utilizing 6.78 MHz radio wave. Also, this Standard in part 2 refers to the “A4WP Wireless Power Transfer System Specification.

These systems are operated at transmission power not exceeding the limitation (up to 50W) allowed for use without permission in the “Other Equipment” category stipulated in “Article 45, Item (3) of the Regulations for Enforcement of the Radio Act” and the “Equipment Utilizing High Frequency Current” stipulated in “Article 100, Paragraph (1), Item (ii) of the Radio Act”.

Moreover, this standard is compliant with the report of Technical Requirements on Wireless Power Transmission System from the Information Communication Council of the Ministry of Internal Affairs and Communications, January 2015.


2. Amendment History

Ver. Amendment or Enactment Date Amendment summary
1.1 12.03.2015

Part 3 is added.

This standard specifies the Microwave Electromagnetic Field Surface Coupling WPT System utilizing the 2.4GHz band in this part. This WPT system is equipped with a wireless power transmission function for mobile device users based on the microwave electromagnetic field surface coupling over the surface proximity of the power transmission device.

This system is also operated at a transmission power not exceeding the limitation (up to 50W) allowed for use without permission in the "Other Equipment" category stipulated in “Article 45, Item (3) of the Regulations for Enforcement of the Radio Act” and the “Equipment Utilizing High Frequency Current” stipulated in “Article 100, Paragraph (1), Item (ii) of the Radio Act”.

1.0 07.03.2015 Enactment

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