Antenna device and antenna system utilizing said antenna device

Communications: radio wave antennas – Antennas – Microstrip

Reexamination Certificate

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Reexamination Certificate

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07956810

ABSTRACT:
An antenna device includes a first conductive piece, a second conductive piece, a third conductive piece and a feeding point. The second conductive piece is electrically coupled to a predetermined voltage level. The third conductive piece is electrically connected to the first conductive piece and the second conductive piece. The feeding point is located on the first conductive piece.

REFERENCES:
patent: 5394160 (1995-02-01), Iwasaki et al.
patent: 6515627 (2003-02-01), Lopez et al.
patent: 7167132 (2007-01-01), Tamaoka
patent: 7602340 (2009-10-01), Sato
patent: 7623087 (2009-11-01), Higaki et al.
patent: 2002/0163471 (2002-11-01), Lopez et al.
patent: 2009/0046019 (2009-02-01), Sato
patent: M253071 (2004-12-01), None
patent: I227953 (2005-02-01), None

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