Antenna device, electronic apparatus, and portable terminal

Patent metadata

Field	Value
Publication number	US-2016276741-A1
Application number	US-201615010699-A
Country	US
Kind code	A1
Filing date	Jan 29, 2016
Priority date	Mar 20, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

An antenna device includes an antenna element including a conductor; and a dielectric component. The antenna element includes a conductor. The dielectric component has a dielectric loss of 0.002 or greater. The dielectric component is attached to the antenna element.

First claim

1 . An antenna device comprising:
an antenna element including a conductor; and a dielectric component having a dielectric loss of 0.002 or greater, the dielectric component being attached to the antenna element.

2 . The antenna device according to claim 1 , wherein
the antenna element comprises a plurality of antenna portions, and the dielectric component is attached to at least one of the antenna portions.

3 . The antenna device according to claim 2 , wherein the antenna portions have resonance frequencies different from each other.

4 . The antenna device according to claim 1 , further comprising a matching section which is disposed on the antenna element and carries out impedance matching.

5 . The antenna device according to claim 1 , further comprising:
a conductive ground to be grounded; and an insulating film, wherein the antenna element and the conductive ground are disposed on the insulating film.

6 . The antenna device according to claim 1 , wherein the antenna element has a linear region, the dielectric component being attached to the linear region.

7 . An electronic apparatus comprising:
the antenna device according to claim 1 ; and a wireless communication unit establishing wireless communication through the antenna device.

8 . An electronic apparatus comprising:
a housing; a wireless communication unit; and an antenna device in connection with the wireless communication unit, the wireless communication unit and the antenna device being accommodated in the housing, wherein the antenna device includes:
an antenna element including a film conductor having a first antenna portion and a second antenna portion, the first antenna portion having a length corresponding to a first frequency, the second antenna portion having a length corresponding to a second frequency different from the first frequency, the first antenna portion and the second antenna portion being bent so as to conform to the shape of the housing of the electronic apparatus;
a conductive film ground to be grounded; and
a dielectric component having a dielectric loss of 0.002 or greater, the dielectric component being attached to at least one of the first antenna portion and the second antenna portion.

9 . The electronic apparatus according to claim 8 , further comprising a matching section which is disposed on the antenna element and carries out impedance matching.

10 . The electronic apparatus according to claim 8 , wherein the antenna element has a linear region, the dielectric component being attached to the linear region.

11 . A portable terminal comprising:
a portable housing to be carried by a user; a wireless communication unit; and an antenna device in connection with the wireless communication unit, the wireless communication unit and the antenna device being accommodated in the portable housing, wherein the antenna device includes:
an antenna element including a film conductor having a first antenna portion and a second antenna portion, the first antenna portion having a length corresponding to a first frequency, the second antenna portion having a length corresponding to a second frequency different from the first frequency, the first antenna portion and the second antenna portion being bent so as to conform to the shape of the portable housing of the electronic apparatus;
a conductive film ground to be grounded; and
a dielectric component having a dielectric loss of 0.002 or greater, the dielectric component being attached to at least one of the first antenna portion and the second antenna portion.

12 . The portable terminal according to claim 11 , further comprising a matching section which is disposed on the antenna element and carries out impedance matching.

13 . The portable terminal according to claim 11 , wherein the antenna element has a linear region, the dielectric component being attached to the linear region.

Assignees

• Casio Computer Co Ltd

Inventors

• Yagi Shigeru
• Ushigome Youichi

Classifications

• H01Q9/0485

  Dielectric resonator antennas · CPC title

• H01Q9/00

  Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements · CPC title

• H01Q5/335

  at the feed, e.g. for impedance matching · CPC title

• H01Q1/38 Primary

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title