Patent ID: 6768469
Filing Date: 2004-07-27
Classification: G01S,H01Q

Abstract:
An antenna comprising:a first conductive layer, said first conductive layer configured with a plurality of slots formed therein, said first conductive layer electrically connected to an aircraft outer surface, and forming a portion of a continuous ground plane with the aircraft outer surface; a first laminate comprising a first side and a second side, said first side adjacent said first conductive layer, said first laminate configured with a plurality of holes therethrough, said holes being through plated with a conductive material and configured to contact said first conductive layer; a second conductive layer, said second conductive layer adjacent to said second side of said first laminate and configured to not contact said holes, at least a portion of said second layer configured to align with said slots in said first conductive layer; a second laminate comprising a first side and a second side, said first side adjacent said second conductive layer, said second laminate configured with a plurality of holes therethrough, said holes being through plated with a conductive material and configured to align with and contact said holes in said first laminate; and a third conductive layer, said third conductive layer adjacent said second side of said second laminate, said third conductive layer configured to contact said holes of said second laminate, said holes configured to form a perimeter around at least the portion of said second layer which is aligned with said slots in said first conductive layer, thereby forming an antenna cavity.