Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2006-07-11
2006-07-11
Le, HoangAnh (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S846000
Reexamination Certificate
active
07075486
ABSTRACT:
An antenna device includes a radiating conductor plate made of a metal sheet having an outer appearance of a substantially square shape and arranged on a ground conductor with a predetermined distance therefrom; a feed pin extending from a feeding point of the radiating conductor plate and connected to a feeding circuit; and leg pieces extending from four points of an outer circumferential edge of the radiating conductor plate to support the radiating conductor plate in a state insulated from the ground conductor. The four leg pieces are offset by predetermined distances from midpoints of respective sides of the radiating conductor plate, thereby forming degenerative separating elements. As a result, the antenna device 10 can be operated as a circularly polarized wave antenna.
REFERENCES:
patent: 5831578 (1998-11-01), Lefevre
patent: 6897813 (2005-05-01), Higasa
patent: 2001/0020920 (2001-09-01), Shigihara
patent: 2003/0132885 (2003-07-01), Kuramoto et al.
patent: 2004/0021606 (2004-02-01), Shigihara
patent: 2005/0093748 (2005-05-01), Yuanzhu
patent: 197 22 506 (1998-12-01), None
patent: 1 069 646 (2001-01-01), None
patent: 1 381 111 (2004-01-01), None
patent: 2000-151261 (2000-05-01), None
patent: 2003-298344 (2003-10-01), None
Search Report dated Jan. 3, 2005 for European Patent Application No. EP 04 02 6803.
Alps Electric Co. ,Ltd.
Brink Hofer Gilson & Lione
Le HoangAnh
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