US 12,148,999 B1
Multimode vivaldi antenna structures
Thomas Henry Hand, Highlands Ranch, CO (US); Joshua David Gustafson, Castle Rock, CO (US); Adam Blair Hess, Denver, CO (US); Thomas Patrick Cencich, Littleton, CO (US); and Braiden T. Olds, Highlands Ranch, CO (US)
Assigned to Lockheed Martin Corporation, Bethesda, MD (US)
Filed by Lockheed Martin Corporation, Bethesda, MD (US)
Filed on Jul. 8, 2021, as Appl. No. 17/370,177.
Int. Cl. H01Q 21/24 (2006.01); H01Q 13/08 (2006.01)
CPC H01Q 21/24 (2013.01) [H01Q 13/085 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
an antenna array comprising a plurality of Vivaldi antenna elements, with alternating ones among the plurality of Vivaldi antenna elements having an elevation offset from a baseplate and a truncation in length in accordance with the elevation offset;
wherein the plurality of Vivaldi antenna elements are arranged about an axis perpendicular to the baseplate in a tilted ring configuration having each Vivaldi antenna element tilted in a non-perpendicular angle with respect to the baseplate, and arranged having an inner face oriented towards the axis and an outer face oriented towards a perimeter of the baseplate.