Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2007-10-12
2008-12-16
Le, HoangAnh T (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S702000
Reexamination Certificate
active
07466272
ABSTRACT:
A dual-band antenna has a ground portion, a connection portion with a feeding point separated from the ground portion and a short portion connected to the ground portion and the connection portion. The short portion and the ground portion are formed an acute angle therebetween. The connection portion respectively connect a first radiating portion and a second radiating portion. The first radiating portion and the second radiating portion are parallel to said ground portion. The short portion is arranged between the ground portion and the first radiating portion. When the dual-band antenna operates at wireless operation, the connection portion, the first radiating portion and the second radiating portion resonate to obtain a first frequency range and a second frequency range. The short portion is formed as a function of an inductance.
REFERENCES:
patent: 6812892 (2004-11-01), Tai et al.
patent: 6861986 (2005-03-01), Fang et al.
patent: 7289071 (2007-10-01), Hung et al.
patent: 7292194 (2007-11-01), Tai et al.
patent: 7339536 (2008-03-01), Hung et al.
patent: 7362277 (2008-04-01), Su
patent: 7429955 (2008-09-01), Tai et al.
Chen Hung-Jen
Hu Shih-Hao
Lin Ching-Chi
Shih Kai
Su Jia-Hung
Cheng Uei Precision Industry Co. Ltd.
King Anthony
Le HoangAnh T
WPAT, P.C.
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