Lockheed Martin Corporation

Adam Blair Hess

Thomas Henry Hand

Joshua David Gustafson

Braiden T Olds

Thomas Patrick Cencich

Joseph M Torres

Erik Lier

Aaron Christopher Rothlisberger

Colton Brent Martin

Madison P Gast

Roger Douglas Hasse

Provided herein are various enhancements for antenna systems and directed radio frequency energy structures. In one example, an apparatus includes an antenna array comprising a plurality of Vivaldi antenna elements arranged about an axis perpendicular to a baseplate. Feed elements are coupled to each of the Vivaldi antenna elements through the baseplate. First alternating ones of the Vivaldi antenna elements are configured to transmit radio frequency (RF) energy at a first RF band, and second alternating ones of the Vivaldi antenna elements are configured to receive RF energy at a second RF band.

Vivaldi antenna structures with concurrent transmit and receive

Provided herein are various enhancements for antenna systems and directed radio frequency energy structures. In one example, an apparatus includes 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. Apertures of the waveguide structures are configured to emit or receive radio frequency (RF) energy generally along the longitudinal axis. Feed elements are coupled to each of the waveguide structures on an end opposite of the apertures, and configured to couple the RF energy for the antenna array.

Waveguide antenna structures with concurrent transmit and receive

Provided herein are various enhancements for antenna systems and directed radio frequency energy structures. In one example, an apparatus includes a baseplate, an antenna array comprising a plurality of Vivaldi antenna elements arranged about an axis perpendicular to the baseplate, and feed elements coupled to each of the Vivaldi antenna elements through the baseplate.

Multimode vivaldi antenna structures

Enhanced components and assemblies for connector-less radio frequency (RF) interconnect systems are provided. One example includes two circuit boards each with a broadside coupling feature comprising a tapered circuit board trace having a terminal portion. The circuit boards are positioned in close proximity to establish a desired gap, and a dielectric material is positioned within the gap between circuit boards. The broadside coupling features of the circuit boards are then configured to convey RF signals over the gap without electrical contact.

Broadside coupled radio frequency interconnect

Aperture antenna structures with concurrent transmit and receive

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Denver, CO, United States of America

Adam Blair Hess