US 11,936,112 B1
Aperture antenna structures with concurrent transmit and receive
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); Braiden T. Olds, Highlands Ranch, CO (US); Joseph M. Torres, Littleton, CO (US); and Erik Lier, Lakewood, CO (US)
Assigned to Lockheed Martin Corporation, Bethesda, MD (US)
Filed by Lockheed Martin Corporation, Bethesda, MD (US)
Filed on May 5, 2022, as Appl. No. 17/737,487.
Int. Cl. H01Q 21/00 (2006.01); H01Q 1/52 (2006.01); H01Q 3/22 (2006.01); H01Q 21/20 (2006.01); H01Q 21/30 (2006.01)
CPC H01Q 21/0056 (2013.01) [H01Q 1/523 (2013.01); H01Q 3/22 (2013.01); H01Q 21/20 (2013.01); H01Q 21/30 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
an antenna array comprising a plurality of antenna elements formed by waveguide structures embedded within a substrate and positioned about a longitudinal axis of the substrate to form at least two concentric ring arrangements of antenna elements;
feed elements coupled to the waveguide structures on an end opposite of apertures of the waveguide structures, and configured to couple radio frequency (RF) energy for the antenna array in accordance with a beamforming configuration;
wherein the beamforming configuration comprises a first ring of the antenna elements configured to transmit RF energy using at least one among a 4:2 and 8:2 first beamforming configuration, and a second ring of the antenna elements configured to receive RF energy using at least one among a 4:2 and 8:2 second beamforming configuration.