Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2011-02-15
2011-02-15
Owens, Douglas W (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S750000, C343S753000
Reexamination Certificate
active
07889136
ABSTRACT:
A micro-strip antenna includes an L-shaped coupler, a set of micro-strip antennas, and an L-shaped band-stop filter. The set of micro-strip antennas includes at least one rectangular micro-strip antenna unit and a micro-strip line. The rectangular micro-strip antenna unit is coupled to the micro-strip line. The micro-strip line is coupled to the first end of the coupler. The band-stop filter is disposed along a corner of the rectangular micro-strip antenna unit, and is disposed between the antenna unit and the coupler without being physically connected to the antenna unit and the coupler. The width, length, and position of the L-shaped band-stop filter can be determined for the specific band-stop frequency and to optimize its coupling extent with the L-shaped coupler.
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[Ivica Stevanovic; Juan R. Mosig], [Using Symmetries and Equivalent Moments in Improving the Efficiency of the Subdomain Multilevel Approach], [IEEE Antennas and Wireless Propagation Letters] , [2005], [p. 158-161], [vol. 4], [IEEE Antennas and Propagation Society], [USA].
Chen Shiou-Li
Chueh Yu-Chih
Deng Wei-Kung
Mao Shau-Gang
Wu Min-Shou
Duong Dieu Hien T
Hsu Winston
Margo Scott
Owens Douglas W
RichWave Technology Corp.
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