US 12,117,554 B2
Radar module using multiple polarizations
Jeong pyo Kim, Suwon-si (KR)
Assigned to ATCODI CO., LTD, Seoul (KR)
Appl. No. 18/292,324
Filed by ATCODI CO., LTD, Seoul (KR)
PCT Filed Jul. 29, 2021, PCT No. PCT/KR2021/009854
§ 371(c)(1), (2) Date Jan. 25, 2024,
PCT Pub. No. WO2023/008612, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. 10-2021-0099214 (KR), filed on Jul. 28, 2021.
Prior Publication US 2024/0264268 A1, Aug. 8, 2024
Int. Cl. G01S 7/02 (2006.01); G01S 7/03 (2006.01); G01S 13/931 (2020.01)
CPC G01S 7/026 (2013.01) [G01S 7/0231 (2021.05); G01S 7/03 (2013.01); G01S 13/931 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A radar module using multiple polarizations comprising:
a transmission channel unit (Tx) including a 1-1st antenna and a 1-2nd antenna for transmitting the electromagnetic waves representing different polarization characteristics;
a reception channel unit (Rx) including N (where N is a natural number) reception channels including a 2-1st antenna and a 2-2nd antenna for receiving echo waves of the electromagnetic waves transmitted by the transmission channel unit to an object and reflected back from the object; and
a control unit for selecting the driving mode of the transmission channel unit and the reception channel unit,
wherein,
the 1-1st and 1-2nd antennas are configured so that the electromagnetic waves transmitted by the 1-1st antenna and the electromagnetic waves transmitted by the 1-2nd antenna represent orthogonal polarization characteristics,
when the control unit selects a third mode as a constant driving mode, the transmission channel unit causes the 1-1st antenna to transmit the electromagnetic waves representing 135 deg polarization characteristics and causes the 1-2 antenna to transmit the electromagnetic waves representing 45 deg polarization characteristics, thereby causing the entire transmission channel unit to transmit the electromagnetic waves representing 90 deg polarization characteristics, and
the receiving channel unit causes all of the 2-1 antennas and 2-2 antennas included in the N reception channels to receive echo waves representing 90 deg polarization characteristics of the electromagnetic waves transmitted by the transmission channel unit to the object and reflected back from the object.