# US 11,112,488 B2 · Method for operating a radar sensor device and radar sensor device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,112,488 B2 - Document ID: US11112488B2 - Status: Granted - Kind: B2 - Application number: 16/390,696 - Filed: 2019-04-22 - Published: 2019-10-31 - Granted: 2021-09-07 - Earliest claimed: 2018-04-27 - Assignees: Robert Bosch GmbH - Applicants: Robert Bosch GmbH - Inventors: Armin Himmelstoss; Thomas Binzer; Thomas Brosche - Web page: https://patentgrep.com/patent/US11112488B2 ## CPC - G01S 7/032: {Constructional details for solid-state radar subsystems} - G01S 7/411: {Identification of targets based on measurements of radar reflectivity (G01S7/415 takes precedence)} - G01S 7/42: Diversity systems specially adapted for radar - G01S 13/06: Systems determining position data of a target - G01S 13/42: Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S13/46) - G01S 13/931: of land vehicles - H01Q 1/3208: {characterised by the application wherein the antenna is used} - H01Q 21/06: Arrays of individually energised antenna units similarly polarised and spaced apart - H01Q 1/3233: {particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems} - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A method for operating a radar sensor device, for example of a motor vehicle, including a plurality of transmitting antenna elements and a plurality of receiving antenna elements, where at least a part of the antenna elements are situated along an arc and/or intersecting planes and where the antenna elements are divided into a plurality of antenna systems that each includes at least two of the transmitting antenna elements and at least two of the receiving antenna elements, includes: operating each of the antenna systems as an independent multiple-input-multiple-output radar system, the operating including: transmitting transmit signals using the transmitting antenna elements that are of first and second ones of the antenna systems, whose transmission ranges overlap and whose transmit signals are orthogonal to one another; and receiving reflections of the transmitted transmit using the receiving antenna elements. ## Claims ### Claim 1 A method for operating a radar sensor device, the radar sensor device including antenna elements including a plurality of transmitting antenna elements and a plurality of receiving antenna elements, wherein all of the antenna elements are situated together along an arc and wherein the antenna elements are divided into a plurality of antenna systems, that each includes at least two of the transmitting antenna elements and at least two of the receiving antenna elements, the method comprising: operating each of the antenna systems as an independent multiple-input-multiple-output radar system relative to one another, wherein the operating includes: transmitting transmit signals using the transmitting antenna elements of a first antenna system of the antenna systems and the transmitting elements of a second antenna system of the antenna systems, the first antenna system being different than the second antenna system, wherein those of the transmitting antenna elements whose transmission ranges overlap have transmit signals orthogonal to one another; and receiving reflections of the transmitted transmit signals using the receiving antenna elements; wherein at least one transmitting antenna element of the first antenna system is operated with the same transmit signal as at least one transmitting element of the second antenna system. ### Claim 2 (depends on 1) The method of claim 1, wherein at least one of the transmitting antenna elements is part of more than one of the antenna systems. ### Claim 3 (depends on 1) The method of claim 1, wherein the transmission ranges of the transmitting antenna elements of the first antenna system have essentially no overlap with the transmission ranges of the transmitting antenna elements of the second antenna system. ### Claim 4 (depends on 1) The method of claim 1, wherein at least a part of the transmitting antenna elements, whose transmission ranges do not overlap, have the same transmit signal. ### Claim 5 (depends on 1) The method of claim 1, wherein the plurality of antenna systems includes at least three antenna systems. ### Claim 6 (depends on 1) The method of claim 1, wherein the radar sensor device is installed in a motor vehicle. ### Claim 7 A radar sensor device comprising: a plurality of transmitting antenna elements; a plurality of receiving antenna elements; wherein: the transmitting and receiving antenna elements are divided into a plurality of antenna systems that each includes at least two of the transmitting antenna elements; all of the transmitting and receiving antenna elements are situated together along an arc; and the antenna systems are operable as an independent multiple-input-multiple-output radar system relative to one another, in which: transmit signals are transmitted by the transmitting antenna elements of a first antenna system of the antenna systems and the transmitting elements of a second antenna system of the antenna systems, the first antenna system being different than the second antenna system, wherein those of the transmitting elements whose transmission ranges overlap have transmit signals orthogonal to one another; and reflections of the transmitted transmit signals are received using the receiving antenna elements; wherein at least one transmitting element of the first antenna system is configured to be operated with the same transmit signal as at least one transmitting element of the second antenna system. ### Claim 8 (depends on 7) The radar sensor device of claim 7, wherein the radar sensor device is installed in a motor vehicle. ### Claim 9 (depends on 7) The radar sensor device of claim 7, wherein the radar sensor device is operable such that at least one of the transmitting antenna elements is part of more than one of the antenna systems. ### Claim 10 (depends on 7) The radar sensor device of claim 7, wherein the transmitting antenna elements are situated and aligned such that the transmission ranges of the transmitting antenna elements of the first antenna system have essentially no overlap with the transmission ranges of the transmitting antenna elements of the second antenna system. ### Claim 11 (depends on 7) The radar sensor device of claim 7, wherein the radar sensor device is operable such that at least a part of the transmitting antenna elements, whose transmission ranges do not overlap, have the same transmit signal. ### Claim 12 (depends on 7) The radar sensor device of claim 7, wherein the plurality of antenna systems includes at least three antenna systems.