Plural horns at focus of parabolic reflector with shields to reduce spillover and side lobes
First Claim
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1. A SHIELDING ARRANGEMENT FOR MINIMIZING THE SPILLOVER LOBES OF AN ANTENNA SYSTEM HAVING A GENERALLY PARABOLIC REFLECTOR AND A PLURALITY OF FEED HORNS DISPOSED IN THE FOCAL PLANE OF SAID REFLECTOR WHICH COMPRISES:
- (A) A METALLIC SHIELD COEXTENSIVE WITH THE EDGE OF SAID REFLECTOR AND EXTENDING THEREFROM IN THE DIRECTION OF THE AXIS OF SAID REFLECTOR TOWARD SAID FOCAL PLANE, (B) A SECOND CYLINDRICAL SHIELD COAXIAL WITH SAID AXIS EXTENDING FROM SAID FOCAL PLANE TOWARD SAID REFELCTOR AND ENCLOSING SAID FEED HORNS, (C) SAID SECOND SHIELD HAVING A DIAMETER AND LENGTH PROPORTIONED SO AS TO PERMIT ILLUMINATION OF THE ENTIRE REFLECTOR SURFACE BY SAID HORNS.
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1 Claim
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1. A SHIELDING ARRANGEMENT FOR MINIMIZING THE SPILLOVER LOBES OF AN ANTENNA SYSTEM HAVING A GENERALLY PARABOLIC REFLECTOR AND A PLURALITY OF FEED HORNS DISPOSED IN THE FOCAL PLANE OF SAID REFLECTOR WHICH COMPRISES:
- (A) A METALLIC SHIELD COEXTENSIVE WITH THE EDGE OF SAID REFLECTOR AND EXTENDING THEREFROM IN THE DIRECTION OF THE AXIS OF SAID REFLECTOR TOWARD SAID FOCAL PLANE, (B) A SECOND CYLINDRICAL SHIELD COAXIAL WITH SAID AXIS EXTENDING FROM SAID FOCAL PLANE TOWARD SAID REFELCTOR AND ENCLOSING SAID FEED HORNS, (C) SAID SECOND SHIELD HAVING A DIAMETER AND LENGTH PROPORTIONED SO AS TO PERMIT ILLUMINATION OF THE ENTIRE REFLECTOR SURFACE BY SAID HORNS.
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Current AssigneeCarey A. Evans, Richard S. Wellons
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Original AssigneeCarey A. Evans, Richard S. Wellons
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InventorsWellons, Richard S., Evans, Carey A.
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Application NumberUS04/258,968Time in Patent Office775 DaysField of SearchUS Class Current343/782CPC Class CodesH01Q 19/17 the primary radiating sourc...
