Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2010-07-20
2011-11-29
Lee, Benny (Department: 2817)
Communications: radio wave antennas
Antennas
Slot type
C343S756000, C333S02100R
Reexamination Certificate
active
08068063
ABSTRACT:
A coupling device is provided. The coupling device has a substrate, a ground element, a first feed conductor and a second feed conductor. The substrate has a first surface and a second surface. The ground element is disposed on the second surface, wherein the ground element has a first annular groove, a second annular groove and a feed slot, the second annular groove surrounds the first annular groove, the feed slot is connected to the first annular groove and the second annular groove. The first feed conductor is disposed on the first surface corresponding to the first annular groove and the second annular groove, wherein the first feed conductor couples the ground element to feed an electric current. The second feed conductor is disposed on the first surface corresponding to the feed slot, wherein the second feed conductor couples the feed slot to feed a magnetic current.
REFERENCES:
patent: 3755759 (1973-08-01), Cohn
patent: 4208660 (1980-06-01), McOwen, Jr.
patent: 6999038 (2006-02-01), Louzir et al.
patent: 7864125 (2011-01-01), Hung et al.
patent: 2009/0046027 (2009-02-01), Lin et al.
Hung Kuo-Fong
Lin Yi-Cheng
Lee Benny
National Taiwan University
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