Lockheed Martin Corporation

Robert Korey Shaw

Anthony R Niemczyk

Erik Lier

Kanti N Patel

Bernard F Lindinger

Jonathan P MacGahan

James W Matthews

Sulinder S Dhanjal

An antenna includes at least one antenna element mounted on a substrate and extending normally thereto. The at least one antenna element is constructed from a plurality of antenna components, one of which is an upper antenna component that is furthest from the substrate. A support material surrounds the at least one antenna element and is disposed between the antenna components. A material layer is disposed on the upper antenna component and the support material. Heating elements may be interposed between the upper antenna component and the material layer, and an additional material layer, such as an ablative layer, may be disposed on the material layer.

Ruggedized antennas and systems and methods thereof

A radiating element for a radar array antenna comprising a ground plane, a first electrically conductive disk arranged at a first distance from and generally parallel to the ground plane, and a second electrically conductive disk arranged at a second distance from and generally parallel to the ground plane. An electrically conductive element extends along a central axis of the radiating element and conductively couples the ground plane, the first electrically conductive disk and the second electrically conductive disk. The radiating element further includes a first wing defining a first surface opposing the electrically conductive element that is arranged at a first distance from the central axis, and a second surface opposing the electrically conductive element that is arranged at a second distance, different from the first distance, from the central axis.

Stacked-disk antenna element with shaped wings

An antenna feed network includes a septum polarizer including a waveguide defining a cavity, wherein a septum is disposed in the cavity to divide the cavity to form a first port and as second port, a diplexer in signal communication with at least one of the first port and the second port of the septum polarizer to route a signal based upon a frequency, and a wave coupler/splitter in signal communication with the diplexer to send and receive signals therebetween, the wave coupler/splitter including a first signal path and a second signal path, wherein the wave coupler/splitter controls a phase shift of a signal transmitted through at least one of the first signal path and the second signal path.

Antenna feed network to produce both linear and circular polarizations

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Cinnaminson, NJ, United States of America

Robert Korey Shaw