公开(公告)号：WO2020009834A1

公开(公告)日：2020-01-09

申请号：PCT/US2019/038890

申请日：2019-06-25

Applicant: BAE SYSTEMS INFORMATION AND ELECTRONIC SYSTEMS INTEGRATION INC.

Inventor： MACCABE, Andrew C. ,  FUNG, James F. ,  LAPIERRE, Randall R. ,  MCMAHON, Benjamin G.

IPC: H01Q5/25 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q21/20 ,  H01Q21/22

Abstract: An array antenna has a plurality of antenna unit cells arranged in rows and columns, or in another configuration. Each unit cell from the plurality of unit cells includes a circularly polarized radiator and a balun. The array antenna further includes a reactive element or a circuit element (such as a capacitor or resistor or even an inductor) on the circularly polarized radiator that is coupled an adjacent unit cell in one of the row and the column. A spacing distance between adjacent unit cells coupled via the circuit element that is at most half of a wavelength at a frequency maximum of the array antenna, wherein the spacing distance reduces likelihood of grating lobes.

公开(公告)号：EP3818593A1

公开(公告)日：2021-05-12

申请号：EP19831405.6

申请日：2019-06-25

Applicant: BAE SYSTEMS Information and Electronic Systems Integration, Inc.

Inventor： MACCABE, Andrew C. ,  FUNG, James F. ,  LAPIERRE, Randall R. ,  MCMAHON, Benjamin G.

IPC: H01Q5/25 ,  H01Q21/00 ,  H01Q21/06 ,  H01Q21/20 ,  H01Q21/22

公开(公告)号：EP4327405A1

公开(公告)日：2024-02-28

申请号：EP22792305.9

申请日：2022-04-19

Applicant: BAE SYSTEMS Information and Electronic Systems Integration, Inc.

Inventor： ROSSMAN, Court E. ,  AFFLECK, Maxwell L. ,  CHROBAK, Matthew F. ,  FUNG, James F. ,  ZEMANY, Paul D.

IPC: H01Q1/28 ,  H01Q21/08