Circularly polarized waveguide slot array
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United States of America Patent
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Feb 17, 2015
Grant Date -
Feb 28, 2013
app pub date -
Jun 4, 2012
filing date -
Aug 22, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A circularly polarized waveguide slot array includes first and second waveguide sections, the first waveguide section extending along a longitudinal axis, and including an antenna element for transmitting or receiving a circularly polarized signal. The second waveguide slot section is coupled side-to-side with the first waveguide slot section and extends along the longitudinal axis, the second waveguide slot section including an antenna element for transmitting or receiving the circularly polarized signal at a phase which is substantially complementary to the circularly polarized signal transmitted by or received by the first waveguide slot section. Further exemplary, the antenna element disposed on the first waveguide slot section is offset from said antenna element disposed on the second waveguide slot section substantially one half of a predefined guide wavelength λg along said longitudinal axis.
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