Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate
2008-04-11
2010-02-09
Dinh, Trinh V (Department: 2821)
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
C343S7000MS, C343S731000, C343S732000
Reexamination Certificate
active
07659864
ABSTRACT:
A broadband antenna has a substrate, a coupling conductor, a conductor string, a ground conductor and a ground plane. The coupling conductor has a first coupling member and a second coupling member being separated from each other. The conductor string and the ground conductor are connected to the second coupling member. The conductor string extends along a direction opposite to the second coupling member. The ground conductor is connected to the ground plane. The broadband antenna uses the coupling conductor and the ground conductor to adjust input impedance for impedance match. The conductor string functions as a multi level resonance circuit to increase impedance bandwidth.
REFERENCES:
patent: 6081242 (2000-06-01), Wingo
patent: 6094172 (2000-07-01), Koscica et al.
patent: 6396458 (2002-05-01), Cockson et al.
patent: 7394428 (2008-07-01), Hsieh
patent: 2002/0175878 (2002-11-01), Toncich
patent: 2007/0052593 (2007-03-01), Bateman et al.
patent: 2007/0262902 (2007-11-01), Iwata et al.
Chang Yao-Yuan
Chen Wen-Shyang
Chiu Tsung-Wen
Hsiao Chih-Ren
Hsiao Fu-Ren
Advanced Connectek Inc.
Dinh Trinh V
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