Electromagnetic-coupling-module-attached article

Patent metadata

Field	Value
Publication number	US-10170934-B2
Application number	US-201514838417-A
Country	US
Kind code	B2
Filing date	Aug 28, 2015
Priority date	Apr 26, 2006
Publication date	Jan 1, 2019
Grant date	Jan 1, 2019

Abstract

An electromagnetic-coupling module including a radio IC chip and a feeder circuit board on which the radio IC chip is mounted and a feeder circuit including a resonant circuit having a predetermined resonant frequency is attached to an article. The article has a radiation element that radiates a transmission signal supplied from the feeder circuit of the electromagnetic-coupling module via electromagnetic coupling and that supplies a received reception signal to the feeder circuit via the electromagnetic coupling.

First claim

What is claimed is:

1. An article comprising:
a metal portion including at least one main surface; and
a power supply circuit including a coil-shaped electrode; wherein
the coil-shaped electrode of the power supply circuit is disposed adjacent to the at least one main surface of the metal portion such that a portion of the coil-shaped electrode overlaps the at least one main surface of the metal portion and another portion of the coil-shaped electrode does not overlap the at least one main surface of the metal portion when viewed in a direction perpendicular to the at least one main surface of the metal portion;
the coil-shaped electrode is disposed on only one side of the at least one main surface of the metal portion;
the coil-shaped electrode of the power supply circuit is magnetically coupled to the at least one main surface of the metal portion; and
the metal portion is configured to perform at least one of transmitting a power supplied from the power supply circuit, and receiving a power and supplying the power to the power supply circuit.

2. The article according to claim 1 , wherein metal portion is a housing of a mobile device.

3. The article according to claim 1 , wherein the coil-shaped electrode is provided adjacent to an edge portion of the metal portion.

4. The article according to claim 3 , wherein a winding axis of the coil-shaped electrode is substantially perpendicular to the metal portion.

5. The article according to claim 4 , wherein the metal portion includes an opening, and the coil-shaped electrode is magnetically coupled to the opening.

Assignees

• Murata Manufacturing Co

Inventors

• Kato Noboru
• Kimura Ikuhei
• Iwasaki Kimikazu
• Ishino Satoshi

Classifications

• H10W90/724

  between a chip and a stacked insulating package substrate, interposer or RDL · CPC title

• H02J50/12 Primary

  of the resonant type · CPC title

• G06K19/07771

  the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object · CPC title

• G06K19/07773

  Antenna details (antennas for wireless devices, e.g. RFID tags, in general H01Q1/22) · CPC title

• G06K19/07749 Primary

  the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card · CPC title