US 12,456,821 B2
Radar antenna
Yunsik Seo, Cheonan-si (KR); Hongdae Jung, Cheonan-si (KR); Jiwoong Jeong, Cheonan-si (KR); Seho Lee, Cheonan-si (KR); Hyungil Baek, Cheonan-si (KR); Hyunjoo Park, Cheonan-si (KR); and Hanju Do, Cheonan-si (KR)
Assigned to AMOSENSE CO., LTD., Cheonan-si (KR)
Appl. No. 18/285,376
Filed by AMOSENSE CO., LTD., Cheonan-si (KR)
PCT Filed Apr. 27, 2022, PCT No. PCT/KR2022/006046
§ 371(c)(1), (2) Date Oct. 25, 2023,
PCT Pub. No. WO2022/231315, PCT Pub. Date Nov. 3, 2022.
Claims priority of application No. 10-2021-0055157 (KR), filed on Apr. 28, 2021.
Prior Publication US 2024/0186722 A1, Jun. 6, 2024
Int. Cl. H01Q 21/00 (2006.01); H01Q 1/32 (2006.01); H01Q 1/52 (2006.01)
CPC H01Q 21/0025 (2013.01) [H01Q 1/3233 (2013.01); H01Q 1/523 (2013.01); H01Q 21/005 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A radar antenna comprising:
a first detachable module formed with one or more antennas; and
a second detachable module formed with one or more antennas, and having a first side surface bonded onto a first side surface of the first detachable module,
wherein each of the one or more antennas comprises a plurality of slit groups formed on a first surface of each of the first and second detachable modules, a plurality of slits formed on a second surface of each of the first and second detachable modules, and waveguides disposed inside each of the first and second detachable modules to interconnect the plurality of slit groups and the plurality of the slits,
wherein a shield block is formed on a portion of the first surface of each of the first and second detachable modules;
the shield block comprises a plurality of accommodation holes, each configured to accommodate a corresponding slit group formed of a plurality of slits;
a shield space is defined by an inner wall of each accommodation hole and the first surface of the respective detachable module; and
each slit group is accommodated in the shield space so as to be shielded from an adjacent slit group.