Wireless device having antenna

Details Wireless device having antenna Wireless device having antenna

2006-08-01

2006-08-01

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

C343S853000, C343S702000

Reexamination Certificate

active

07084831

ABSTRACT:
A wireless device includes a first antenna element resonating with a first frequency, a first feeding point coupled to the first antenna element and disposed on a ground plane in the wireless device, and a first matching circuit of which its first end is coupled to the first feeding point. The wireless device also includes a second antenna element resonating a second frequency higher than the first frequency, a second feeding point coupled to the second antenna element and disposed on the ground plane, a second matching circuit of which one end is coupled to the second feeding point, and a radio circuit coupled via a transmission line to a common connection point shared by respective second ends of the first and second matching circuits.

REFERENCES:
patent: 6154177 (2000-11-01), Saito et al.
patent: 6198442 (2001-03-01), Rutkowski et al.
patent: 6873299 (2005-03-01), Dakeya et al.
patent: 6914570 (2005-07-01), Asrani et al.
patent: 2002/0163470 (2002-11-01), Nagumo et al.
patent: 2003/0063030 (2003-04-01), Stoiljkovic et al.
patent: 2005/0085204 (2005-04-01), Poilasne et al.
patent: 1 289 061 (2003-03-01), None
patent: 2003-101335 (2003-04-01), None
patent: 03/055087 (2003-07-01), None

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