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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12374803 B1

PDFFull Text
Date of Patent:
Jul. 29, 2025

Filed:

Feb. 01, 2021

Detection of weak signals of unknown parameters

Applicant:

Elta Systems Ltd., Ashdod, IL;

Inventors:

Amir Shmuel, Nofit, IL;

Maxim Suhanov, Yavne, IL;

Assignee:

ELTA SYSTEMS LTD., Ashdod, IL;

Attorneys:

FISHERBROYLES, LLP

Roger L. Browdy

Ronni S. Jillions

Primary Examiner:

Vladimir Magloire

Assistant Examiner:

Remash R Guyah

Int. Cl.
CPC ...
H01Q 15/08 (2006.01); H01Q 5/28 (2015.01); H01Q 13/02 (2006.01); H01Q 19/06 (2006.01); H01Q 13/06 (2006.01); H01Q 13/08 (2006.01); H01Q 13/10 (2006.01); H01Q 13/20 (2006.01); H01Q 15/10 (2006.01); H01Q 15/14 (2006.01); H01Q 15/16 (2006.01); H01Q 19/08 (2006.01); H01Q 19/09 (2006.01); H01Q 19/10 (2006.01); H01Q 25/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 15/08 (2013.01); H01Q 5/28 (2015.01); H01Q 13/02 (2013.01); H01Q 19/062 (2013.01);
Abstract

An antenna system for at least one of Elint and Sigint, configured to detect weak electro-magnetic signals, comprises an antenna and a feed manifold, which comprises a plurality of feeds located on a focal surface of the antenna. The antenna is configured to function as a two-dimensional focusing element, having spherical symmetry. The system is configured such that a planar wave-front associated with a electro-magnetic signal, that is impinging on the antenna, is focused by the antenna to a feed, situated at a distance from the antenna corresponding to a focal distance of the antenna along a propagation vector of the wave-front. The spatial field of view of the antenna system is based on a number of feeds and the spacing between feeds. This produces, for each feed, a respective high-gain beam, with direction along the line connecting the center of the spherical symmetry and the feed.

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