Conformal broadband directional ½ flared notch radiator antenna array
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United States of America Patent
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Oct 16, 2018
Grant Date -
Jan 11, 2018
app pub date -
Apr 6, 2016
filing date -
Apr 6, 2016
priority date (Note) -
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Abstract
An antenna array includes a plurality of ½ flared notch radiators recessed within a missile nose cone and positioned in a circumferential arrangement around and extending radially from the payload's metal skin to contact an annular metal cover that provides a ground plane such that each ½ flared notch radiator is inclined towards the boresight axis. The payload's metal skin provides an image plane for each ½ flared notch radiator to launch RF energy with a radial polarization normal to the image plane forward through the annular RF radome. Each ½ flared notch radiator may be positioned within a 5½ sided waveguide to further improve directionality and isolation.
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