US 12,451,606 B2
Patch antenna
Takashi Nozaki, Tomioka (JP); and Hirotoshi Mizuno, Tomioka (JP)
Assigned to YOKOWO CO., LTD., Tokyo (JP)
Appl. No. 18/268,605
Filed by YOKOWO CO., LTD., Tokyo (JP)
PCT Filed Dec. 20, 2021, PCT No. PCT/JP2021/047073
§ 371(c)(1), (2) Date Jun. 21, 2023,
PCT Pub. No. WO2022/138582, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-213444 (JP), filed on Dec. 23, 2020.
Prior Publication US 2024/0047879 A1, Feb. 8, 2024
Int. Cl. H01Q 9/04 (2006.01); H01Q 1/32 (2006.01); H01Q 19/22 (2006.01)
CPC H01Q 9/0435 (2013.01) [H01Q 1/3275 (2013.01); H01Q 19/22 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A patch antenna comprising:
a base;
a dielectric member;
a radiating element provided at the dielectric member; and
at least one parasitic element provided in a surrounding region of the dielectric member and the radiating element, the at least one parasitic element being grounded at the base
wherein the parasitic element comprises:
a pillar portion provided at the base, and
an extension portion extending from a top portion of the pillar portion, the extension portion bending from the pillar portion, and
wherein a distance between a grounded end portion of the pillar portion and the top portion of the pillar portion is shorter than a distance between the base and a position of the radiating element.