Antenna coupler for a portable radiotelephone

Details Antenna coupler for a portable radiotelephone Antenna coupler for a portable radiotelephone

1996-04-02

1998-09-22

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

With radio cabinet

343841, 343906, H01Q 124

Patent

active

058120947

ABSTRACT:
A novel and improved antenna coupler useful in an adapter for a portable radiotelephone. In a first embodiment, a plurality of curved bands of metal are positioned on a ground plane, with at least one of the plurality of curved bands of metal being electrically isolated from the ground plane so as to couple RF signals to and from the antenna of a portable telephone. At least one ground pin is also mounted on the ground plane. When a portable radiotelephone is interfaced with the antenna coupler, the at least one ground pin makes electrical contact with assembly screws or an external ground pad of a battery charging port on the portable radiotelephone. In a second embodiment, a coupling pin makes direct contact with an component of the RF chain of the portable radiotelephone. In a third embodiment, a helical coupler surrounds the antenna of the portable radiotelephone.

REFERENCES:
patent: 3337280 (1967-08-01), Joseph et al.
patent: 3349405 (1967-10-01), Wright
patent: 4220955 (1980-09-01), Frye
patent: 5158483 (1992-10-01), Fishman et al.
patent: 5289199 (1994-02-01), Viereck
patent: 5304998 (1994-04-01), Lopez
patent: 5343214 (1994-08-01), Hadzoglou
patent: 5374937 (1994-12-01), Tsunekawa et al.
patent: 5493702 (1996-02-01), Crowley et al.
patent: 5557287 (1996-09-01), Pottala et al.

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