Mobile telephone

Details Mobile telephone Mobile telephone

2000-06-29

2003-07-22

Trost, William (Department: 2683)

Telecommunications

Transmitter and receiver at same station

Having particular housing or support of a transceiver

C455S550100, C455S575100, C343S702000, C343S841000, C379S433010

Reexamination Certificate

active

06597896

ABSTRACT:

BACKGROUND INFORMATION
It is known to arrange the antenna of a mobile telephone on the backside of the mobile telephone.
SUMMARY OF THE INVENTION
The mobile telephone according to the present invention has the advantage that the radiation transmitted into the head of a user is reduced.
The best place to arrange the antenna relative to the barriers is in the middle of the backside of the mobile phone. The barriers surround the antenna at least from two opposite sides, better from all four sides. The shield and the barriers can easily be fabricated from a single metal sheet, or by applying a conductive layer to a plastic backside of the mobile telephone. A further reduction of the radiation transmitted into the head of the user can be achieved by using barriers on the front side of the mobile side of the mobile telephone.


REFERENCES:
patent: 5936583 (1999-08-01), Sekine et al.
patent: 5999831 (1999-12-01), Itoh
patent: 6075977 (2000-06-01), Bayrami
patent: 6259896 (2001-07-01), Sepponen
patent: 6314277 (2001-11-01), Hsu et al.

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