# US 11,309,942 B1 · Radar having antennas arranged at horizontal and vertical intervals > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,942 B1 - Document ID: US11309942B1 - Status: Granted - Kind: B1 - Application number: 17/139,150 - Filed: 2020-12-31 - Granted: 2022-04-19 - Earliest claimed: 2020-12-28 - Assignees: Bitsensing Inc. - Applicants: Bitsensing Inc. - Inventors: Jae Eun Lee; Hae Seung Lim - Web page: https://patentgrep.com/patent/US11309942B1 ## CPC - G01S 13/931: of land vehicles - H04B 7/0417: Feedback systems - G01S 7/03: Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver - G01S 13/42: Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S13/46) - H01Q 1/247: {with frequency mixer, e.g. for direct satellite reception or Doppler radar} - H01Q 21/06: Arrays of individually energised antenna units similarly polarised and spaced apart - H04B 7/046: {taking physical layer constraints into account} - 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 - H04B: TRANSMISSION - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## Abstract A radar includes a transmitter antenna unit including a plurality of transmitter antennas arranged in a diagonal direction based on a first horizontal interval and a first vertical interval, a receiver antenna unit including a first receiver antenna group and a second receiver antenna group arranged based on a second horizontal interval, a transceiver configured to transmit a transmission signal through the transmitter antenna unit and receive a reflection signal reflected from a target object through the receiver antenna unit and a processing unit configured to extract information about the target object by processing the received reflection signal. ## Claims ### Claim 1 A radar, comprising: a transmitter antenna unit including a plurality of transmitter antennas arranged in a diagonal direction based on a first horizontal interval and a first vertical interval; a receiver antenna unit including a first receiver antenna group and a second receiver antenna group arranged based on a second horizontal interval; a transceiver configured to transmit a transmission signal through the transmitter antenna unit and receive a reflection signal reflected from a target object through the receiver antenna unit; and a processing unit configured to extract information about the target object by processing the received reflection signal. ### Claim 2 (depends on 1) The radar of claim 1, wherein the transmitter antenna unit includes at least two transmitter antenna groups and each of the transmitter antenna groups includes a plurality of transmitter antennas arranged in the diagonal direction based on the first horizontal interval and the first vertical interval, and transmitter antenna groups respectively included in the at least two transmitter antenna groups are arranged at an interval from each other based on the number of receiver antennas included in the receiver antenna unit and the first horizontal interval. ### Claim 3 (depends on 1) The radar of claim 1, further comprising: a virtual receiver antenna forming unit configured to form a first virtual receiver antenna group and a second virtual receiver antenna group arranged at the second horizontal interval and corresponding to each of the plurality of transmitter antennas arranged at the first horizontal interval and the first vertical interval when multiple-input and multiple-output (MIMO) operations are performed through the plurality of transmitter antennas. ### Claim 4 (depends on 3) The radar of claim 3, wherein if at least one receiver antenna of the first receiver antenna group and the second receiver antenna group and at least one virtual receiver antenna of the first virtual receiver antenna group and the second virtual receiver antenna group overlap with each other, the processing unit performs error compensation on the received reflection signal based on signals received by the receiver antenna and the virtual receiver antenna overlapping with each other. ### Claim 5 (depends on 3) The radar of claim 3, wherein a hexagonal antenna pattern is formed within a horizontal area and a vertical area corresponding to the first receiver antenna group, the second receiver antenna group, the first virtual receiver antenna group and the second virtual receiver antenna group. ### Claim 6 (depends on 1) The radar of claim 1, wherein at least one receiver antenna included in the first receiver antenna group and at least one receiver antenna included in the second receiver antenna group are alternately arranged. ### Claim 7 (depends on 6) The radar of claim 6, wherein the receiver antenna included in the first receiver antenna group and the receiver antenna included in the second receiver antenna group are arranged adjacent to each other at the first horizontal interval. ### Claim 8 (depends on 7) The radar of claim 7, wherein the second horizontal interval is at least double of the first horizontal interval. ### Claim 9 (depends on 6) The radar of claim 6, wherein the receiver antenna included in the first receiver antenna group and the receiver antenna included in the second receiver antenna group are arranged adjacent to each other to have a vertical offset based on a second vertical interval. ### Claim 10 (depends on 9) The radar of claim 9, wherein the first vertical interval is equal to the second vertical interval.