Adaptive antenna matching

Details Adaptive antenna matching Adaptive antenna matching

2007-09-13

2010-06-29

Owens, Douglas W (Department: 2821)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C343S702000, C343S751000

Reexamination Certificate

active

07746290

ABSTRACT:
The present invention relates to a portable communication device and a method of controlling the matching of an antenna in a portable communication device. The device may include an antenna; a radio circuit to send a radio frequency signal to the antenna via a signal path; a matching network including a number of network components and configured to be in the signal path; a detector configured to detect an electromagnetic field from the antenna; and a control unit configured to control matching of the antenna by influencing at least one of the first matching network or the antenna based on the detected electromagnetic field.

REFERENCES:
patent: 6211830 (2001-04-01), Monma et al.
patent: 6697030 (2004-02-01), Gleener
patent: 7260424 (2007-08-01), Schmidt
patent: 7277677 (2007-10-01), Ida et al.
patent: 2007/0197180 (2007-08-01), McKinzie, III et al.
patent: 2007/0285326 (2007-12-01), McKinzie
patent: 1 653 611 (2006-05-01), None
patent: 1 655 850 (2006-05-01), None
patent: 2 330 965 (1999-05-01), None
International Search Report for PCT/EP2007/064027 mailed May 19, 2008, 3 pages.

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