US 11,982,760 B2
MIMO radar sensor
Arthur Hipke, Leonberg (DE); and Benedikt Loesch, Stuttgart (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Jan. 24, 2022, as Appl. No. 17/648,762.
Claims priority of application No. 10 2021 201 073.3 (DE), filed on Feb. 5, 2021.
Prior Publication US 2022/0252693 A1, Aug. 11, 2022
Int. Cl. G01S 13/42 (2006.01); G01S 7/03 (2006.01); G01S 13/50 (2006.01); G01S 13/931 (2020.01); H01Q 21/18 (2006.01)
CPC G01S 7/032 (2013.01) [G01S 13/931 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A multiple input multiple output (MIMO) radar sensor, comprising:
a planar antenna arrangement including a first antenna array, which is formed of a plurality of transmitting antennas and a second antenna array, which is formed of a plurality of receiving antennas, wherein:
the plurality of transmitting antennas of the first antenna array are offset relative to one another in a first direction;
the plurality of receiving antennas of the second antenna array are offset relative to one another in the first direction;
the first and second antenna arrays are offset from each other in a second direction that is perpendicular to the first direction;
each of the antennas of the first and second two sub arrays is being more strongly focused in the second direction than in the first direction; and
in each of at least one of the first and second antenna arrays:
at least two of the antennas of the respective antenna array are offset from one another in the second direction; and
all of the antennas of the respective antenna array are, in combination, symmetrically arranged relative to an axis that runs in the second direction, at a same side of the antennas of the other one of the antenna arrays;
a high frequency element configured to generate respective transmit signals for the transmitting antennas of the first antenna array and to preprocess respective received signals of the receiving antennas of the second antenna array; and
a control and evaluation device configured to control the high frequency element and to determine distances, relative velocities, and azimuth and elevation angles of located objects based on the preprocessed received signals.