公开(公告)号：US12069798B1

公开(公告)日：2024-08-20

申请号：US17726672

申请日：2022-04-22

Applicant: Lockheed Martin Corporation

Inventor： Thomas Henry Hand ,  Joshua David Gustafson ,  Joseph M. Torres ,  Aaron Christopher Rothlisberger ,  Roger Douglas Hasse ,  Adam Blair Hess ,  Madison P. Gast ,  Braiden T. Olds ,  Colton Brent Martin

IPC: H05K1/02 ,  H01P5/18 ,  H05K1/14

CPC classification number: H05K1/024 ,  H01P5/187 ,  H05K1/145 ,  H05K2201/09227

Abstract: 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.

公开(公告)号：US11264729B2

公开(公告)日：2022-03-01

申请号：US16226445

申请日：2018-12-19

Applicant: LOCKHEED MARTIN CORPORATION

Inventor： Thomas Henry Hand ,  Arun Kumar Bhattacharyya ,  Joseph M. Torres ,  Scott Alan Lundgren ,  Konrad J. Gojara ,  Grayeme Everett Platt

IPC: H01Q19/17 ,  H01Q3/26 ,  H01Q21/20 ,  H01Q19/18

Abstract: Systems and methods are provided for wide scan phased array fed reflector systems using ring-focus optics to significantly improve the scan volume of such systems. The subject system includes a reflector having a focal plane and a parabolic curvature configured to receive electromagnetic radiation having a first gain and provide reflected electromagnetic radiation having a second gain greater than the first gain that collimates into a focal ring. The subject system includes a feed array having feed elements positioned about the focal ring, in which each feed element is configured to receive the reflected electromagnetic radiation from the reflector and collimate the reflected electromagnetic radiation into a scanned beam for scanning an annular region. In some aspects, the feed array is centered on the focal ring such that at least one feed element overlaps with the focal ring and remaining feed elements are non-overlapping with the focal ring.

公开(公告)号：US11936112B1

公开(公告)日：2024-03-19

申请号：US17737487

申请日：2022-05-05

Applicant: Lockheed Martin Corporation

Inventor： Thomas Henry Hand ,  Joshua David Gustafson ,  Adam Blair Hess ,  Thomas Patrick Cencich ,  Braiden T. Olds ,  Joseph M. Torres ,  Erik Lier

IPC: H01Q21/00 ,  H01Q1/52 ,  H01Q3/22 ,  H01Q21/20 ,  H01Q21/30

CPC classification number: H01Q21/0056 ,  H01Q1/523 ,  H01Q3/22 ,  H01Q21/20 ,  H01Q21/30

Abstract: 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.

公开(公告)号：US11450962B1

公开(公告)日：2022-09-20

申请号：US16386137

申请日：2019-04-16

Applicant: Lockheed Martin Corporation

Inventor： Joshua David Gustafson ,  W. Neill Kefauver ,  Thomas Henry Hand ,  Joseph M. Torres ,  Thomas Patrick Cencich ,  James Steven Harrison

IPC: H01Q5/30 ,  H01Q5/50 ,  H01Q5/357 ,  H01Q21/00 ,  H01Q21/06

Abstract: An antenna element includes a radiator element, a plurality of feed circuits and a multiplexing interface. The radiator element can transceive radio-frequency (RF) signals. The feed circuits, which include impedance and multiplexing features, are realized on multiple feed locations of the radiating element feed slot. The multiplexing interface is electrically coupled to the plurality of feed circuits and can multiplex a number of sub-band signals associated with the feed circuits. The multiplexing interface can provide a high isolation between the feed circuits.