POWER RECEIVING DEVICE, POWER SUPPLYING DEVICE, AND COMMUNICATION DEVICE

WIPO Patent Application WO/2013/124935

A1

The present invention addresses the problem of providing a small interface device capable of receiving power, supplying power, and communication in a stable manner while suppressing the standing wave effect on a communication sheet. A power receiving device (100) receives power from a two-dimensionally spread electromagnetic wave propagation sheet (10) and is equipped with two conductor portions as antenna elements, the two conductor portions including: a first conductor portion (110) coupled to magnetic waves that propagate through the electromagnetic wave propagation sheet (10) and receiving power; and a second conductor portion (120) coupled to magnetic waves that propagate through the electromagnetic wave propagation sheet (10) and receiving power. The first conductor portion (110) and the second conductor portion (120) are disposed so that the distance in a first direction between one end of the first conductor portion (110) in the first direction and one end of the second conductor portion (120) in the first direction has a length of 2λ/14 to 5λ/14, inclusive, where, λ is the effective wavelength of the electromagnetic waves propagating through the electromagnetic wave propagation sheet (10).

NAKASE KOICHIRO (JP)
TSUKAGOSHI TSUNEO (JP)
KOBAYASHI NAOKI (JP)
FUKUDA HIROSHI (JP)

PCT/JP2012/007567

August 29, 2013

November 26, 2012

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NEC CORP (JP)
NAKASE KOICHIRO (JP)
TSUKAGOSHI TSUNEO (JP)
KOBAYASHI NAOKI (JP)
FUKUDA HIROSHI (JP)

H02J17/00; H04B5/02

WO2007032339A1	2007-03-22
WO2007032049A1	2007-03-22
WO2010131612A1	2010-11-18

JP2007150652A	2007-06-14
JP2008295176A	2008-12-04

IEIRI, Takeshi (JP)
House ON 健 (JP)

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