Mobile wireless device

Details Mobile wireless device Mobile wireless device

1999-09-13

2003-08-26

Hsu, Alpus H. (Department: 2662)

Multiplex communications

Communication over free space

C343S702000, C343S718000, C343S769000, C379S447000, C455S066100

Reexamination Certificate

active

06611504

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a mobile wireless device, and particularly to a mobile wireless device structured in such a manner that a hand strap and a built-in antenna element are electro-magnetically coupled with each other and form a high gain antenna.
FIG. 8
is a view showing the structure of the conventional mobile wireless device. In
FIG. 8
, the mobile wireless device comprises a wireless device main body
21
, antenna element
22
, hand strap connection portion
23
, and hand strap
24
.
In
FIG. 8
, the hand strap
24
is structured by either one of fiber fabric or synthetic resin, or composition of them, and is formed into a ring shape.
In the conventional mobile wireless device, the hand strap
24
is, as described above, structured into a ring-like one formed of any one of, or composite of fiber fabric, fiber knitted goods, or synthetic resin, and does not affect the electric characteristic of the antenna element
22
structured inside the wireless device main body
21
. Accordingly, when a size of the antenna element
22
is reduced, the gain of the antenna is deteriorated, which is a problem.
SUMMARY OF THE INVENTION
The present invention is attained to solve the above-described problem, and an object of the present invention is to provide a mobile wireless device in which the hand strap and the antenna element are electro-magnetically coupled, and a high gain antenna is obtained.
In order to solve the above-described problem, in a mobile wireless device, the present invention is characterized in that an antenna element is provided inside a case of a wireless device main body, a hand strap connection portion is provided in the vicinity of the antenna element, and a hand strap which is made of conductive material and formed into a ring shape, is attached to the hand strap connection portion.
Accordingly, according to the present invention, an effect that the hand strap and the built-in antenna element are electro-magnetically coupled, thereby the antenna can have a high gain, is obtained.


REFERENCES:
patent: 3745583 (1973-07-01), Herbert
patent: 5014070 (1991-05-01), Stock et al.
patent: 5564082 (1996-10-01), Blonder et al.
patent: 6188362 (2001-02-01), Igarashi
patent: 1046808 (1990-11-01), None
patent: 2 248 330 (1992-04-01), None
patent: 6250979 (1994-09-01), None
patent: 7273686 (1995-10-01), None
Patent Abstracts of Japan, Publication No. 06334557, Publication Date Dec. 2, 1994.
Patent Abstracts of Japan, Publication No. 09289671, Publication Date Apr. 23, 1996.

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