US 12,117,514 B2
Antenna device and radar device
Satoshi Kageme, Tokyo (JP); and Mitsuru Kirita, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
Filed on Oct. 19, 2021, as Appl. No. 17/504,730.
Application 17/504,730 is a continuation of application No. PCT/JP2019/019677, filed on May 17, 2019.
Prior Publication US 2022/0043132 A1, Feb. 10, 2022
Int. Cl. G01S 13/00 (2006.01); G01S 7/03 (2006.01); G01S 7/35 (2006.01); G01S 13/58 (2006.01); G01S 13/931 (2020.01)
CPC G01S 13/003 (2013.01) [G01S 7/03 (2013.01); G01S 7/352 (2013.01); G01S 13/584 (2013.01); G01S 13/931 (2013.01); G01S 2013/93271 (2020.01); G01S 2013/93272 (2020.01); G01S 2013/93274 (2020.01); G01S 2013/93275 (2020.01); G01S 2013/93276 (2020.01)] 19 Claims
OG exemplary drawing
 
1. An antenna device comprising:
a plurality of transmission antennas to radiate transmission signals; and
a plurality of reception antennas each to receive, as a reflected signal, each of the transmission signals radiated from the respective plurality of transmission antennas and then reflected by a target, and output a reception signal corresponding to the reflected signals, wherein
the plurality of reception antennas are arranged at regular intervals between two transmission antennas adjacent to each other among the plurality of transmission antennas, and a length between the two transmission antennas has a width obtained by adding an integral multiple of a length between each two of the plurality of reception antennas to a width obtained by dividing the length between each two of the plurality of reception antennas by a number of the plurality of transmission antennas.