Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2007-03-12
2010-12-28
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S848000
Reexamination Certificate
active
07859466
ABSTRACT:
A dual-band antenna (10) is disposed on a substrate (20), for transceiving electromagnetic signals of different frequencies. The dual-band antenna includes a grounded portion (12), a feeding portion (14), and a radiation body (16). The feeding portion is adjacent to the grounded portion. The radiation body electronically connected to the feeding portion, includes a first radiation portion (160) and a second radiation portion (162). The first radiation portion includes a first free end (160c), a first connecting end (160a) electronically connected to the feeding portion, and a serpentine portion (160b) between the first free end and the first connecting end. The second radiation portion, includes a second connecting end (162a) electronically connected to the first connecting end, and a second free end (162b), wherein the first free end and the second free end face each other and a gap (18) is formed therebetween.
REFERENCES:
patent: 6337663 (2002-01-01), Chi-Ming
patent: 6856285 (2005-02-01), Bettin et al.
patent: 6992631 (2006-01-01), Lu
patent: 7385556 (2008-06-01), Chung et al.
patent: 7573424 (2009-08-01), Mei
patent: 2008/0024366 (2008-01-01), Cheng
patent: 557608 (2003-10-01), None
patent: I223470 (2004-11-01), None
H.S.Choi et al. ,Ultra-compact CPW-fed Monopole Antenna with Double Inverted-L Strips for Dual-Band WLAN Applications, IEEE Trans. Antennas Propagat., vol. 52, pp. 978-982, Apr. 2004.
Chung Wei Te
Ho Tan
Hon Hai Precision Industry Co. Ltd.
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