Antenna for portable cellular telephone

Details Antenna for portable cellular telephone Antenna for portable cellular telephone

2007-02-20

2007-02-20

Dinh, Trinh (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

Reexamination Certificate

active

11063520

ABSTRACT:
An antenna for portable cellular telephone can adjust each of multiple antenna elements efficiently and independently to a predetermined resonance frequency. A first antenna element and second antenna element are mounted on and anchored to one common base. Terminals for feeding power to the first antenna element and the second antenna element are provided respectively. The terminals are coupled to matching circuits. This structure facilitates separate and efficient adjustment of resonance frequency of the first antenna element and the second antenna element.

REFERENCES:
patent: 6154177 (2000-11-01), Saito et al.
patent: 6222499 (2001-04-01), Goetz et al.
patent: 6873299 (2005-03-01), Dakeya et al.
patent: 6914570 (2005-07-01), Asrani et al.
patent: 2004/0253972 (2004-12-01), Iwai et al.
patent: 2003-101335 (2003-04-01), None

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