Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Reexamination Certificate
2005-06-14
2005-06-14
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
C343S7000MS
Reexamination Certificate
active
06906678
ABSTRACT:
A multi-frequency printed antenna includes an insulating substrate, a feed strip, a ground strip, and a plurality of radiating and grounded conductive strips. The insulating substrate has a first surface and a second surface opposite to the first surface. The feed strip and the plurality of radiating conductive strips are formed on the first surface while the ground strip and the plurality of grounded conductive strips are formed on the second surface. The radiating conductive strips together with the grounded conductive strips form a multi-resonant mechanism to achieve a multi-frequency antenna radiation.
REFERENCES:
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patent: 5598174 (1997-01-01), Erkocevic et al.
patent: 5754145 (1998-05-01), Evans
patent: 6337666 (2002-01-01), Bishop
patent: 6339405 (2002-01-01), Gleener
patent: 6650296 (2003-11-01), Wong et al.
patent: 6747600 (2004-06-01), Wong et al.
Chen Shih-Chao
GemTek Technology Co. Ltd.
Troxell Law Office, PL
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