公开(公告)号：US11217881B1

公开(公告)日：2022-01-04

申请号：US16675116

申请日：2019-11-05

Applicant: Lockheed Martin Corporation

Inventor： Thomas Patrick Cencich ,  W. Neill Kefauver ,  Timothy Edward Palagi

IPC: H01Q1/36 ,  H01Q7/00

Abstract: A spiral antenna device includes one or more conductive spiral arms that are formed on a dielectric substrate attached to a wall of a cylindrical cavity. One or more coils are formed on the wall of the cylindrical cavity and are coupled to the one or more conductive spiral arms. Starting points of the one or more conductive spiral arms are in a center region of the dielectric substrate and ending points of the one or more conductive spiral arms are electrically coupled to first ends of the one or more coils.

公开(公告)号：US12199351B1

公开(公告)日：2025-01-14

申请号：US17570321

申请日：2022-01-06

Applicant: Lockheed Martin Corporation

Inventor： Timothy Edward Palagi ,  William Henry Conrey ,  Carlos James Romero

IPC: H01Q3/38 ,  H04B7/06

Abstract: A phased array antenna is provided that includes a plurality of antenna elements arranged in a plurality of subarrays. A plurality of first beamformers is coupled to respective elements of the plurality of antenna elements, and a plurality of second beamformers is coupled to respective subarrays of the plurality of subarrays. A controller is configured to steer a phase center for each of the plurality of subarrays using the plurality of first beamformers so that the phase centers for the plurality of subarrays are irregularly spaced.