Portable wireless unit

Details Portable wireless unit Portable wireless unit

2005-11-08

2009-10-27

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

With radio cabinet

C343S876000, C455S575300

Reexamination Certificate

active

07609212

ABSTRACT:
A portable wireless unit having high antenna performance, which comprises: a first case having a first antenna element, a second antenna element and a second feeding section; a second case having a third antenna element, a third feeding section and a circuit board provided with a ground pattern; and a coupling section consisting of first and second electrically connected conductive coupling elements and coupling the first case and the second case to be extended and housed freely. The second coupling element is provided in the first case while being connected electrically with the first antenna element, the first coupling element is provided in the second case while being connected electrically with the first feeding section, and the first antenna element, the coupling section, and the ground pattern are operated as a dipole antenna.

REFERENCES:
patent: 5649306 (1997-07-01), Vannatta et al.
patent: 6636181 (2003-10-01), Asano et al.
patent: 7136018 (2006-11-01), Iguchi et al.
patent: 7167726 (2007-01-01), Ghosh et al.
patent: 9-205476 (1997-08-01), None
patent: 10-271192 (1998-10-01), None
patent: 2003-298695 (2003-10-01), None
patent: 2004-179995 (2004-06-01), None
patent: 2004-242005 (2004-08-01), None
International Search Report for PCT/JP2005/020771, dated Dec. 27, 2005.

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