Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2007-05-11
2009-02-24
Nguyen, Hoang V (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S702000
Reexamination Certificate
active
07495617
ABSTRACT:
A multi-band antenna is arranged on a housing with a first surface, a second surface opposite to the first surface, and a third surface connecting the first and second surfaces, which has a first radiating conductor and a parasitic element formed as an elongated shape and arranged on the first surface. A trap circuit connects the first radiating conductor and the parasitic element. A ground portion is arranged on the second surface. A second radiating conductor is arranged on the third surface and spaced from the first radiating conductor and the ground portion, which is formed as an elongated shape. A feeding conductor with a feeding point connects the first and second radiating conductors. The multi-band antenna obtains a low frequency band through the cooperation of the first radiating, the parasitic element and the trap circuit, and a high frequency band through the second radiating conductor and the parasitic element.
REFERENCES:
patent: 6784843 (2004-08-01), Onaka et al.
patent: 7119748 (2006-10-01), Autti
patent: 2001/0050643 (2001-12-01), Egorov et al.
Chen Jen-hung
Lin Ching-chi
Shih Kai
Su Jia-hung
Wu Yu-yuan
Cheng Uei Precision Industry Co. Ltd.
Nguyen Hoang V
Rosenberg , Klein & Lee
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