Wideband gridded square frequency selective surface
First Claim
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1. A wideband gridded square array frequency selective surface comprising:
- a square grid formed by a first plurality of parallel conducive lines spaced apart at a distance p, said first plurality of parallel conducting lines perpendicularly intersecting a second plurality of parallel conductive liens spaced apart at a distance p to provide a plurality of squares therebetween anda plurality of conductive square loops, each square loop of said plurality of square loops being disposed within an associated one of said squares of said grid such that a distance g between a respective line segment of said square loop and the corresponding adjacent parallel conductive line segment of said first grid is greater than one quarter times said distance p between said parallel lines of said grid.
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Abstract
A wideband frequency selective surface 10 is disclosed which includes a square grid 12 having a first plurality of parallel conductive lines perpendicularly intersecting a second plurality of parallel conductive lines to provide a plurality of squares. The distance between the parallel conductive lines is p. A plurality of conductive square loops 20-23 are included within the plurality of squares. The distance between each line segment of each square loop and the corresponding adjacent parallel conductive line segment of the square grid is g. The distance g is greater than one quarter times the distance p for wideband performance.
39 Citations
1 Claim
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1. A wideband gridded square array frequency selective surface comprising:
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a square grid formed by a first plurality of parallel conducive lines spaced apart at a distance p, said first plurality of parallel conducting lines perpendicularly intersecting a second plurality of parallel conductive liens spaced apart at a distance p to provide a plurality of squares therebetween and a plurality of conductive square loops, each square loop of said plurality of square loops being disposed within an associated one of said squares of said grid such that a distance g between a respective line segment of said square loop and the corresponding adjacent parallel conductive line segment of said first grid is greater than one quarter times said distance p between said parallel lines of said grid.
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Specification
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Current AssigneeHughes Electronics Corporation (Rtx Corporation)
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Original AssigneeHughes Aircraft Company (Rtx Corporation)
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InventorsWu, Te-Kao
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Primary Examiner(s)LaRoche, Eugene R.
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Assistant Examiner(s)Lee, Benny T.
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Application NumberUS07/148,312Time in Patent Office421 DaysField of Search333/202, 333/204, 343/909, 343/753US Class Current343/909CPC Class CodesH01Q 15/0013 said selective devices work...
