公开(公告)号：US12298426B2

公开(公告)日：2025-05-13

申请号：US17242347

申请日：2021-04-28

Applicant: Raytheon Company

Inventor： Joshua A. Whorf ,  Jacquelyn A. Vitaz ,  Steven Carson ,  Stephen Sekelsky ,  Chad Wangsvick

IPC: G01S7/02 ,  F41G7/22 ,  G01S3/04 ,  G01S3/46 ,  G01S7/03 ,  G01S13/42 ,  H01Q1/28 ,  H01Q21/06

Abstract: A wideband direction finding (WBDF) aperture employs a limited number of extreme wideband end-fire antenna elements capable of covering a wide frequency bandwidth. Arranging variable sized antenna elements in a specific pattern, the WBDF aperture enables direction finding capability covering an extreme wide frequency band. The pattern arrangement of variable sized elements offers the signal discernment to limit ambiguities in signal angle of arrival. This small form factor design enables the WBDF aperture to be mounted on the surface of a missile, munition, or small UAS wing or fuselage. The WBDF aperture offers a combination of differing sized antenna elements arranged in a specific pattern, combined with direction finding and signal tracking to provide an unambiguous relative azimuth and elevation angle of the target.

公开(公告)号：US20220349989A1

公开(公告)日：2022-11-03

申请号：US17242347

申请日：2021-04-28

Applicant: Raytheon Company

Inventor： Joshua A. Whorf ,  Jacquelyn A. Vitaz ,  Steven Carson ,  Stephen Sekelsky ,  Chad Wangsvick

IPC: G01S7/02 ,  G01S7/03 ,  G05D1/10 ,  H01Q21/06

Abstract: A wideband direction finding (WBDF) aperture employs a limited number of extreme wideband end-fire antenna elements capable of covering a wide frequency bandwidth. Arranging variable sized antenna elements in a specific pattern, the WBDF aperture enables direction finding capability covering an extreme wide frequency band. The pattern arrangement of variable sized elements offers the signal discernment to limit ambiguities in signal angle of arrival. This small form factor design enables the WBDF aperture to be mounted on the surface of a missile, munition, or small UAS wing or fuselage. The WBDF aperture offers a combination of differing sized antenna elements arranged in a specific pattern, combined with direction finding and signal tracking to provide an unambiguous relative azimuth and elevation angle of the target.