Antenna arrangement

Details Antenna arrangement Antenna arrangement

2007-01-30

2007-01-30

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S895000, C343S901000

Reexamination Certificate

active

11096006

ABSTRACT:
An antenna arrangement including a first matching circuit; a second matching circuit; a first antenna connected to the first matching circuit; a second antenna, moveable with respect to the first antenna, between an extended position in which it is connected to the first matching circuit and a non-extended position in which it forms a couple between the first antenna and the second matching circuit, wherein the second antenna has an impedance that is brought towards a first impedance at a first operational frequency band when the second antenna is moved into the extended position and the first antenna has an impedance which is brought towards the first impedance at a first operational frequency band when the second antenna is moved into the non-extended position.

REFERENCES:
patent: 5650789 (1997-07-01), Elliott et al.
patent: 5969684 (1999-10-01), Oh et al.
patent: 6052089 (2000-04-01), Eggleston
patent: 6496150 (2002-12-01), Li et al.
patent: 6531986 (2003-03-01), Saito
patent: 6738603 (2004-05-01), Saito
patent: 6753827 (2004-06-01), Oshiyama et al.
patent: 0617520 (1994-09-01), None

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