US 11,837,790 B2
Circularly polarized array antenna and circularly polarized array antenna module
Sanghyun Kim, Suwon-si (KR); Dusik Kim, Suwon-si (KR); Eun-kyoung Kim, Suwon-si (KR); Byeongdeok Park, Suwon-si (KR); and Yeook Jeon, Suwon-si (KR)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-si (KR)
Filed on May 12, 2021, as Appl. No. 17/318,455.
Claims priority of application No. 10-2020-0162764 (KR), filed on Nov. 27, 2020.
Prior Publication US 2022/0173527 A1, Jun. 2, 2022
Int. Cl. H01Q 21/06 (2006.01); H01Q 9/04 (2006.01); H01Q 21/24 (2006.01)
CPC H01Q 21/065 (2013.01) [H01Q 9/0428 (2013.01); H01Q 21/24 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A circularly polarized array antenna, comprising:
a dielectric material substrate; and
at least one unit antenna including a plurality of radiators arranged sequentially in a rotational direction on the dielectric material substrate such that feeders of the plurality of radiators have a phase difference,
wherein the plurality of radiators are arranged in a diagonal direction with respect to a first direction and a second direction crossing each other,
wherein radiators neighboring each other in the first direction or the second direction, among the plurality of radiators, are spaced apart by a gap of at least a width of the radiators neighboring each other in the first direction or the second direction,
wherein each radiator among the plurality of radiators includes a driving patch connected to a respective feeder among the feeders, and a coupling patch spaced apart from the driving patch in a thickness direction of the dielectric material substrate, and
wherein the coupling patch of one of the radiators neighboring each other in the first direction is positioned on a same layer as the driving patch of another one of the radiators neighboring each other.