Built-in single band antenna device and operating method...

Details Built-in single band antenna device and operating method... Built-in single band antenna device and operating method...

2005-04-26

2005-04-26

Wimer, Michael C. (Department: 2828)

Communications: radio wave antennas

Antennas

With radio cabinet

C455S575700

Reexamination Certificate

active

06885346

ABSTRACT:
There is provided a built-in single band antenna device and an operating method thereof in a mobile terminal. In the built-in antenna single band antenna device, a built-in single band antenna is formed into a conductive pattern on a board extended from the upper side of a main PCB. A whip antenna is connected to the built-in single band antenna, and contained in the mobile terminal when the whip antenna is retracted. A whip antenna driver extends or retracts the whip antenna. A duplexer separates an RF signal received from the built-in single band antenna from an RF signal to be transmitted to the built-in single band antenna. A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.

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