Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2007-09-18
2007-09-18
Owens, Douglas W. (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S7000MS, C343S770000, C343S767000, C343S725000
Reexamination Certificate
active
11303295
ABSTRACT:
A pair of radiating slots open in a flat metal plate having a square shape to be line-symmetrically arranged with respect to a symmetry axis, and power feeding lines and ground lines are provided at power feeding positions of the respective radiating slots. The respective radiating slots have first slot portions and second slot portions that contact at 45 degrees and linearly extend, respectively. Both the radiating slots are arranged in a back-to-back manner that edges of the first slot portions face each other, and the second slot portions extend in a direction to be separated from each other along two sides of the flat metal plate. Further, a polarization direction of an electric wave to be generated by one radiating slot and a polarization direction of an electric wave to be generated by the other radiating slot are set to be perpendicular to each other.
REFERENCES:
patent: 6133879 (2000-10-01), Grangeat et al.
patent: 6160513 (2000-12-01), Davidson et al.
patent: 6762730 (2004-07-01), Schadler
patent: 7193576 (2007-03-01), Yazdandoost et al.
patent: 2006/0038724 (2006-02-01), Tikhov et al.
patent: 2003-234615 (2003-08-01), None
Alps Electric Co. ,Ltd.
Brinks Hofer Gilson & Lione
Owens Douglas W.
Tran Chuc
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