US 11,923,609 B2
Radar antenna
Hyun Joo Park, Seoul (KR); Kyung Hyun Ryu, Seoul (KR); Yun Sik Seo, Suwon-si (KR); Se Ho Lee, Seoul (KR); Jeong Geun Heo, Seoul (KR); Han Ju Do, Pyeongtaek-si (KR); and Hyung Ii Baek, Gyeonggi-do (KR)
Assigned to AMOTECH CO., LTD., Incheon (KR)
Appl. No. 17/615,045
Filed by AMOTECH CO., LTD., Incheon (KR)
PCT Filed May 27, 2020, PCT No. PCT/KR2020/006858
§ 371(c)(1), (2) Date Nov. 29, 2021,
PCT Pub. No. WO2020/242196, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 10-2019-0063047 (KR), filed on May 29, 2019.
Prior Publication US 2022/0231423 A1, Jul. 21, 2022
Int. Cl. H01Q 21/00 (2006.01); H01Q 13/10 (2006.01)
CPC H01Q 21/005 (2013.01) [H01Q 13/10 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A radar antenna comprising:
an antenna body;
a slot radiation part and a slot reception part formed on one side of the antenna body;
a transmission port and a reception port formed on the other side of the antenna body; and
a plurality of waveguides formed in the antenna body, and configured to connect the slot radiation part to the transmission port, and connect the slot reception part to the reception port,
wherein the slot radiation part comprises a first slot radiation part configured to radiate a radio wave in a first detection range, and a second slot radiation part and a third slot radiation part configured to radiate radio waves in a second detection range having a larger width and distance than the first detection range, and
wherein the second and third slot radiation parts each comprise a plurality of slots arranged in a plurality of rows in top-to-bottom and side-to-side directions,
wherein the uppermost slot in the outermost row among the plurality of rows and the uppermost slot in a row inside the outermost row are arranged to deviate from each other in a side-to-side direction.