Antenna apparatus for mobile terminal

Details Antenna apparatus for mobile terminal Antenna apparatus for mobile terminal

1999-03-01

2000-10-24

Ho, Tan

Communications: radio wave antennas

Antennas

With radio cabinet

343741, 343866, 343900, H01Q 124

Patent

active

061374458

ABSTRACT:
An antenna apparatus for a mobile terminal is provided having a hula hoop antenna secured to a housing of the mobile terminal; a conductive line coupling the hula hoop antenna to a transceiver of the mobile terminal; a conductive fixing member having a through hole and contacting a portion of the hula hoop antenna; a cylindrical fixing member inserted into the through hole of the conductive fixing member; and a rod antenna extendable and retractable from and into the housing. The rod antenna is movable along a central axis of the cylindrical fixing member. The hula hoop antenna has a first end connected to a variable capacitor on a printed circuit board of the mobile terminal and a second end connected to a ground plate of the printed circuit board.

REFERENCES:
patent: 4814776 (1989-03-01), Caci et al.
patent: 5479178 (1995-12-01), Ha
patent: 5594457 (1997-01-01), Wingo
patent: 5764191 (1998-06-01), Tsuda
patent: 5818392 (1998-10-01), Oka et al.

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