US 2026/0029526 A1Published application

Microwave imaging radar sensor

AssigneeBea SA

InventorsVincent KASCHTEN, Alain Louis ZAMBON

Life of this patent

Estimating the term…

Loading patent…

Abstract

A microwave imaging radar sensor for creating an image of at least a part of its surrounding space includes at least one transmitter unit, a receiver unit and an evaluation unit having an output port to output an image connected to the transmitter and receiver units. The image has fields related to a pair of a transmit channel and a receive channel, where at least two transmit channels and at least two receive channels each correspond to a fan shaped beam having a first dimension (D1) which is significantly larger than and perpendicular to a second dimension (D2). The field is assigned to a radar result characteristic (RC) provided by the receive channel whose fan shaped receive beam overlaps with the fan shaped transmit beam of the transmit channel defining an overlap area. The transmit channel correlates with the transmitter unit, which comprises a refractive beamformer having a transmit reference plane to which the fan shaped transmit beams of the transmit channels are perpendicular with their first dimension (D1). The transmitter unit embodies transmit transition structures associated with the refractive beamformer at different transition positions, so that each transmit channel is related to at least one transmit transition structure. The receive channel correlates with the receiver unit that has a refractive beamformer having a receive reference plane to which the fan shaped receive beams of the receive channels are perpendicular with their first dimension (D1). The receiver unit includes receive transition structures associated with the refractive beamformer at different transition positions, so that each receive channel is related to at least one receive transition structure.

A microwave imaging radar sensor for creating an image of at least a part of its surrounding space, where the sensor comprises at least one transmitter unit, a receiver unit and an evaluation unit which has an output port to output an image and which is connected to the transmitter unit and the receiver unit, where the image comprises fields, where the fields are related to a pair of a transmit channel (TX.X) and a receive channel (RX.X), where at least two transmit channels (TX.X) and at least two receive channels (RX.X) each correspond to a fan shaped beam (BT.X, BR.X) having a first dimension (D1) which is significantly larger than a second dimension (D2) and where the first dimension (D1) is perpendicular to the second dimension (D2), where the field is assigned to a radar result characteristic (RC) provided by the receive channel (RX.X) whose fan shaped receive beam (BR.X) overlaps with the fan shaped transmit beam (BT.X) of the transmit channel (TX.X) defining an overlap area (OA, OA.X), wherein the transmit channel (TX.X) correlates with the transmitter unit, which comprises a refractive beamformer comprising a transmit reference plane (RP-T) to which the fan shaped transmit beams (BT.X) of the transmit channels (TX.X) are perpendicular with their first dimension (D1), where the transmitter unit comprises a plurality of transmit transition structures (TTS.X) associated with the refractive beamformer at different transition positions, so that each transmit channel (TX.X) is related to at least one transmit transition structure (TTS.X), and where the receive channel (RX.X) correlates with the receiver unit that comprises a refractive beamformer comprising a receive reference plane (RP-R) to which the fan shaped receive beams (BR.X) of the receive channels (RX.X) are perpendicular with their first dimension (D1), where the receiver unit comprises a plurality of receive transition structures (RTS.X) associated with the refractive beamformer at different transition positions, so that each receive channel (RX.X) is related to at least one receive transition structure (RTS.X).

Facts

Application

19/150,002Filed 26 Jan 2024

Priority

DE 10 2023 102 084.627 Jan 2023

Published

29 Jan 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

G01S 13/89
Radar or analogous systems specially adapted for specific applications: for mapping or imaging
G01S 7/026
Using polarisation effects: involving the transmission of elliptically or circularly polarised waves
G01S 7/028
Constructional details of housings, e.g. form, type, material or ruggedness: miniaturisation, e.g. surface mounted device [SMD] packaging or housings
G01S 7/032
Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver: constructional details for solid-state radar subsystems

Abstract

Claims30