# US 2014/0194078 A1 · Wireless communication device

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- Number: US 2014/0194078 A1
- Document ID: US20140194078A1
- Status: Published application
- Kind: A1
- Application number: 14/116,447
- Filed: 2012-07-27
- Published: 2014-07-10
- Earliest claimed: 2011-07-27
- Assignees: Sharp Kabushiki Kaisha
- Inventors: Nozomu Hikino
- Web page: https://patentgrep.com/patent/US20140194078A1

## CPC

- H04B 1/385: {Transceivers carried on the body, e.g. in helmets}
- G02C 11/10: {Electronic devices other than hearing aids}
- H01Q 1/273: {Adaptation for carrying or wearing by persons or animals}
- H01Q 9/16: with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence)
- H04B: TRANSMISSION
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)
- H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72)

## Abstract

A wireless communication device includes an antenna element for carrying out wireless communications, a power feeding section for supplying power to the antenna element, a conductor other than the antenna element, and a dividing part for dividing the conductor, the dividing part being provided so as to divide the conductor into parts so that each of the parts has a length equal to or less than a quarter of wavelength at an operating frequency at which the antenna element carries out wireless communications.

## Claims

### Claim 1

A wireless communication device comprising:
an antenna element for carrying out wireless communications; and
a power feeding section for supplying power to the antenna element,
said wireless communication device further comprising:
a conductor other than the antenna element; and
a dividing part for dividing the conductor, the dividing part being an insulator, the dividing part being provided so as to divide the conductor into parts so that each of the parts has a length equal to or less than a quarter of wavelength at an operating frequency at which the antenna element carries out wireless communications.

### Claim 2 (depends on 1)

The wireless communication device as set forth in claim 1, wherein both ends of each of the parts divided by the dividing part are open ends.

### Claim 3 (depends on 1)

The wireless communication device as set forth in claim 1, wherein both ends of each of the parts divided by the dividing part are short-circuited ends.

### Claim 4 (depends on 1)

The wireless communication device as set forth in claim 1, wherein:
one of the parts divided by the dividing part (i) has one end and the other end, the one end being a short-circuit end which is short-circuited with a ground, and the other end being an open end, (ii) is positioned so that an induced current is to be generated therein by an electric current excited in the antenna element, and (iii) has a length of three-sixteenths to a quarter of wavelength at the operating frequency;
the short-circuited end is closer to the power feeding section than the open end is; and
an angle between the one of the parts and the antenna element is 90 degrees or larger.