US 11,817,628 B2
Dual polarized antenna using shift series feed
Su Won Lee, Yongin-si (KR); Yong Won Seo, Daejeon (KR); Oh Seog Choi, Hwaseong-si (KR); and Young Chan Moon, Suwon-si (KR)
Assigned to KMW INC., Hwaseong-si (KR)
Filed by KMW INC., Hwaseong-si (KR)
Filed on Nov. 16, 2021, as Appl. No. 17/528,147.
Application 17/528,147 is a continuation of application No. PCT/KR2020/005558, filed on Apr. 28, 2020.
Claims priority of application No. 10-2019-0057260 (KR), filed on May 16, 2019; and application No. 10-2019-0085446 (KR), filed on Jul. 16, 2019.
Prior Publication US 2022/0077593 A1, Mar. 10, 2022
Int. Cl. H01Q 21/06 (2006.01); H01Q 25/00 (2006.01); H01Q 21/26 (2006.01); H01Q 9/04 (2006.01)
CPC H01Q 21/062 (2013.01) [H01Q 9/0435 (2013.01); H01Q 9/0457 (2013.01); H01Q 21/26 (2013.01); H01Q 25/001 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A dual-polarized antenna comprising:
a base substrate;
a feed unit supported on the base substrate and comprising a first feed substrate and a second feed substrate disposed to cross each other; and
a radiation plate supported on the feed unit,
wherein the first feed substrate comprises a first feed line configured to supply a first region with a first reference-phase signal in a first direction of the radiation plate and to supply a second region sequential to the first region with a first anti-phase signal having a phase opposite to a phase of the first reference-phase signal according to a shift feed method, and
the second feed substrate comprises a second feed line configured to supply a third region with a second reference-phase signal in a second direction of the radiation plate and to supply a fourth region sequential to the third region with a second anti-phase signal having a phase opposite to a phase of the second reference-phase signal according to the shift feed method,
wherein each of the first feed line and the second feed line is implemented so that sequential feeds having a predetermined time difference are performed in an identical direction on the radiation plate according to the shift feed method.