Mobile device

Patent metadata

Field	Value
Publication number	US-9609094-B2
Application number	US-201414783543-A
Country	US
Kind code	B2
Filing date	Apr 15, 2014
Priority date	Apr 25, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A mobile phone includes an antenna housing made of a resin, an insert metal plate made of a metal, which is buried in the antenna housing and has a connecting portion exposed from an outer surface of the antenna housing, and an antenna element provided on the outer surface of the antenna housing and brought into contact with the connecting portion. A boundary between a region where the antenna element is in contact with the connecting portion and a region where the antenna element is in contact with the antenna housing is nonlinear. With this structure, a mobile device is provided in which deterioration of the antenna performance is reduced even in the event of being subjected to an excessive external shock.

First claim

The invention claimed is:

1. A mobile device comprising:
a housing made of a resin including an outer surface, the outer surface facing an external space outside of said housing;
a conductive member made of a metal in said housing and including a connecting portion exposed through the outer surface of said housing to the external space; and
a thin film antenna along the outer surface of said housing and able to contact with said connecting portion in the external space,
a boundary between a first region where said thin film antenna is in contact with said connecting portion in the external space and a nonlinear second region where said thin film antenna is in contact with said housing in the external space.

2. The mobile device according to claim 1 , wherein said connecting portion, when the outer surface of said housing is viewed two-dimensionally, has an uneven shape including a first protrusion and a second protrusion each defining a protruding shape toward said nonlinear second region, and a depression between said first protrusion and said second protrusion.

3. The mobile device according to claim 1 , wherein said connecting portion, when the outer surface of said housing is viewed two-dimensionally, has an uneven shape including a protrusion defining a protruding shape toward said nonlinear second region, and a first stepped portion and a second stepped portion on opposite sides of said protrusion and including a step with said protrusion.

4. The mobile device according to claim 1 , further comprising:
a main body case combined with said housing and including a substrate; and
a seal member between said main body case and said housing, said seal member defining a boundary between a waterproof region in which said substrate is disposed and a non-waterproof region in which said thin film antenna is disposed, wherein
said conductive member is exposed within said main body case, and further includes a power feed portion electrically connected to said substrate, and
said seal member does not overlap with said connecting portion and said power feed portion.

5. The mobile device according to claim 1 , wherein said thin film antenna includes a main body extending on the outer surface of said housing, and an extension extending toward said connecting portion from a path of said thin film antenna main body and able to contact with said connecting portion at an end thereof.

Assignees

• Sharp Kk

Inventors

• Yamashita Tetsuya
• Murota Kohichi
• Higashi Keijiroh

Classifications

• H01Q1/38

  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

• H04M1/0202 Primary

  Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03) · CPC title

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title

• H01Q1/40

  Radiating elements coated with or embedded in protective material · CPC title

• H01Q1/243

  with built-in antennas · CPC title