Antenna device for portable wireless terminal

Details Antenna device for portable wireless terminal Antenna device for portable wireless terminal

2006-09-12

2006-09-12

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S823000

Reexamination Certificate

active

07106260

ABSTRACT:
Disclosed herein is an antenna device for use with a portable wireless terminal having a main body, and a sub-body slidably coupled to the main body. The antenna device includes a first antenna mounted in the main body, and a second antenna mounted on the sub-body. The second antenna is selectively exposed to the outside as the sub-body moves on the main body in a sliding manner. In case of a conventional sliding-type terminal, there is a problem in that an antenna device incorporated in its main body is interfered with by body parts of a user, thereby causing deterioration in the performance thereof. However, the antenna device according to the present invention compensates for such a deterioration in performance by using the additional second antenna mounted on the sub-body of the terminal. This improves the transmitting/receiving signal quality of the terminal. Furthermore, as such an antenna device is incorporated inside a sliding-type terminal or a pop-up type terminal, it is possible to eliminate a risk of damage and to diversify the design of the terminal.

REFERENCES:
patent: 5905467 (1999-05-01), Narayanaswamy et al.
patent: 5978655 (1999-11-01), Ohura et al.
patent: 6225951 (2001-05-01), Holshouser et al.
patent: 6463262 (2002-10-01), Johnson et al.
patent: 6785565 (2004-08-01), Gventer
patent: 6961593 (2005-11-01), Lonka et al.
patent: 6980840 (2005-12-01), Kim et al.

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