公开(公告)号：US12241967B2

公开(公告)日：2025-03-04

申请号：US17576657

申请日：2022-01-14

Applicant: THALES

Inventor： Pascal Cornic ,  Yoan Veyrac ,  Renan Le Gall

IPC: G01S13/89 ,  H01Q13/02 ,  H01Q19/06 ,  H01Q19/10 ,  H03F3/24

Abstract: An active antenna radar able to produce an image with high angular resolution over a wide angular coverage, the antenna includes a number N of transmission channels and a number M of reception channels, each transmission channel and reception channel comprising an elementary antenna: each elementary antenna comprises a lens or a reflector associated with an array of elementary sources, the sources being configured to illuminate the lens or the reflector and at least the apertures being substantially arranged in the focal plane of the lens or centred around the focal point of the reflector; each elementary transmission or reception source being able to form or receive, respectively, a beam focused in a given direction, the directions being different from one transmission or reception source to another of one and the same elementary antenna; each elementary transmission or reception source being connected to a power amplifier or to a low-noise amplifier, respectively, and to switching means allowing the source to be supplied or not to be supplied with power or the signals from the source to be received or not to be received, respectively.

公开(公告)号：US12204012B2

公开(公告)日：2025-01-21

申请号：US17525851

申请日：2021-11-12

Applicant: THALES

Inventor： Yoan Veyrac ,  Pascal Cornic ,  Renan Le Gall ,  Gonzague Bertin De La Hautiere

IPC: G01S13/42 ,  G01S13/02 ,  G01S13/89 ,  G01S13/91 ,  H01Q3/36

Abstract: The invention relates to a MIMO imaging radar system. The system comprises transmission channels (Ve1, VeM), reception channels (Vr1, VrN), and co-located radiating elements (ERe1, EReM, ERr1, ERrN) forming a two-dimensional antenna array. Each radiating element (ERe1, EReM, ERr1, ERrN) has a predefined instantaneous field of coverage. Each radiating element is formed by a plurality of p radiating sub-elements (SeElt1, SsEltp) distributed in at least one of the two dimensions of the antenna array. The radar comprises a plurality of electronic steering modules (MDe1, . . . , MDrN). Each electronic steering module is connected to one radiating element. Each steering module is configured to apply a steering command (Cmd) between all the radiating sub-elements (SeElt1, SsEltp) of a given radiating element. The steering command (Cmd) is identical from one radiating element to the next, so as to move the field of coverage of each radiating element in the same direction.