公开(公告)号：US11978960B2

公开(公告)日：2024-05-07

申请号：US18170608

申请日：2023-02-17

Applicant: ROBIN RADAR FACILITIES BV

Inventor： Siete Hamminga ,  Rob Van der Meer

IPC: H01Q21/00 ,  H01Q1/52 ,  H01Q13/02 ,  H01Q13/18 ,  H01Q13/22 ,  H01Q21/06

CPC classification number: H01Q21/005 ,  H01Q1/52 ,  H01Q13/0233 ,  H01Q13/18 ,  H01Q13/22 ,  H01Q21/064

Abstract: A cavity slotted-waveguide antenna array has several waveguide columns disposed in parallel in a housing. Several of the waveguide columns being provided with cavity slots on the front side of the housing. The housing includes a front part secured to a rear part, with a rear portion of the waveguide columns being formed in the rear part, and with a front portion of the waveguide columns being formed in said front part. The waveguide columns can have a rectangular cross-section, with the columns defined by two opposing wide inner surfaces, a narrow inner back surface, and a narrow inner front surface, with the plurality of cavity slots extending from the front side of the housing to said narrow inner front surface. A signal probe is disposed in the columns. Conductive parallel plate blinds are conductively secured to the front side of the housing.