Airfoil radar antenna
First Claim
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1. IN A HIGH RESOLUTION, NARROW BEAM, SEARCH RADAR SYSTEM, THE ANTENNA IMPROVEMENT COMPRISING:
- A ROTATABLE AIRFOIL, SAID AIRFOIL BEING FLEXIBLE IN A DIRECTION PERPENDICULAR TO THE PLANE OF ROTATION OF SAID AIRFOIL, AND A SLOTTED WAVEGUIDE DEPLOYED WITHIN SAID AIRFOIL ALONG A SUBSTANTIAL PORTION OF THE LENGTH OF SAID AIRFOIL NEAR THE TRAILING EDGE OF SAID AIRFOIL, THE SLOTS OF SAID WAVEGUIDE FACING OUTWARDLY TOWARD THE TRAILING EDGE OF SAID AIRFOIL, THE SKIN OF SAID AIRFOIL ADJACENT SAID WAVEGUIDE BEING FORMED OF A MATERIAL THAT IS TRANSPARENT TO RADIATION.
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1 Claim
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1. IN A HIGH RESOLUTION, NARROW BEAM, SEARCH RADAR SYSTEM, THE ANTENNA IMPROVEMENT COMPRISING:
- A ROTATABLE AIRFOIL, SAID AIRFOIL BEING FLEXIBLE IN A DIRECTION PERPENDICULAR TO THE PLANE OF ROTATION OF SAID AIRFOIL, AND A SLOTTED WAVEGUIDE DEPLOYED WITHIN SAID AIRFOIL ALONG A SUBSTANTIAL PORTION OF THE LENGTH OF SAID AIRFOIL NEAR THE TRAILING EDGE OF SAID AIRFOIL, THE SLOTS OF SAID WAVEGUIDE FACING OUTWARDLY TOWARD THE TRAILING EDGE OF SAID AIRFOIL, THE SKIN OF SAID AIRFOIL ADJACENT SAID WAVEGUIDE BEING FORMED OF A MATERIAL THAT IS TRANSPARENT TO RADIATION.
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Current AssigneeBell Helicopter Textron Incorporated (Textron Inc)
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Original AssigneeHubert W. Upton
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InventorsUpton, Hubert W.
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Application NumberUS04/397,090Time in Patent Office1,377 DaysField of SearchUS Class Current343/708CPC Class CodesB64C 27/473 Constructional featuresH01Q 1/28 Adaptation for use in or on...H01Q 1/286 substantially flush mounted...H01Q 13/22 Longitudinal slot in bounda...
