Cellular phone and method of operating the same

Details Cellular phone and method of operating the same Cellular phone and method of operating the same

2008-03-25

2008-03-25

Wimer, Michael C. (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S846000, C343S861000, C455S575700

Reexamination Certificate

active

07348926

ABSTRACT:
A cellular phone covering a plurality of frequency bands, includes (a) an antenna, (b) a high-frequency circuit, (c) an antenna-matching circuit electrically connecting in series between the antenna and the high-frequency circuit, and (d) a first unit which varies a ground length in accordance with a frequency band in which the cellular phone makes communication with others, the ground length being defined as a length of a ground area for the antenna-matching circuit.

REFERENCES:
patent: 4992799 (1991-02-01), Garay
patent: 5561437 (1996-10-01), Phillips et al.
patent: 5995052 (1999-11-01), Sadler et al.
patent: 2002/0190913 (2002-12-01), Kuck
patent: 0548975 (1993-06-01), None
patent: 0622864 (1994-11-01), None
patent: 2257569 (1993-01-01), None
patent: 6-314920 (1994-11-01), None
patent: 7-283631 (1995-10-01), None
patent: 8-331001 (1996-12-01), None
patent: 11-186832 (1999-07-01), None
patent: 2000-138522 (2000-05-01), None
patent: 2001-339474 (2001-12-01), None
patent: 2002-64329 (2002-02-01), None
patent: 2002-076719 (2002-03-01), None
patent: 2002-512463 (2002-04-01), None
patent: 2006-166260 (2006-06-01), None

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