Slot Antenna
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United States of America Patent
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Issued Date -
May 14, 2009
app pub date -
Mar 6, 2007
filing date -
Apr 12, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Impedance matching is achieved in a waveguide of a slot antenna, which is provided with an input waveguide that is fed power via an aperture plane; a stairway structure is provided in the input waveguide; the structure creates a step going upward toward a surface provided with a slot; the step difference and height of the step going upward are adjusted so that the impedance at a plane above the step and the impedance at the aperture plane match.
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