Radio antenna for a communication terminal

Details Radio antenna for a communication terminal Radio antenna for a communication terminal

2007-04-26

2009-12-29

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S725000

Reexamination Certificate

active

07639188

ABSTRACT:
A radio antenna device for a radio communication terminal, e.g. a mobile phone, comprising a flat ground plane, a first monopole antenna element in the form of a meandered antenna element, and a second monopole antenna element having a folded three-dimensional box-like shape. The meandered antenna element has a first radio signal feeding point disposed at the ground plane. Furthermore, the meandered antenna element is located in the same plane as said ground plane in a direction of extension of the ground plane. The folded three-dimensional box-like shaped antenna element has a second radio signal feeding point disposed at a support member of the ground plane. Furthermore, the folded three-dimensional box-like shaped antenna element is located adjacent to said meandered antenna element. The meandered antenna element is operable in the first frequency band region and the folded three-dimensional box-like shaped antenna element is operable in the second frequency band region.

REFERENCES:
patent: 6774850 (2004-08-01), Chen
patent: 7050010 (2006-05-01), Wang et al.
patent: 7084831 (2006-08-01), Takagi et al.
patent: 7319432 (2008-01-01), Andersson
patent: 2003/0058176 (2003-03-01), Keilen et al.
patent: 2004/0017329 (2004-01-01), Fang et al.
patent: 2005/0264458 (2005-12-01), Takagi et al.
patent: 2006/0211373 (2006-09-01), Lind et al.
patent: 1 359 638 (2003-11-01), None
International Search Report for corresponding Application No. PCT/EP2007/060438 mailed Jan. 14, 2008.

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