Patent ID: 11929555
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A circular polarization array antenna device, comprising:
a plurality of elements arranged in a matrix and each configured to radiate a circularly polarized wave, wherein
when N is an odd number of three or more and M is an odd number of one or more,
the plurality of elements are included in
a first element group in which elements are arranged in a matrix of N rows and M columns in one end portion side of a region in which the plurality of elements are arranged, and
a second element group in which elements are arranged in a matrix of N rows and M columns in another end portion side of the region in which the plurality of elements are arranged, and

the plurality of elements include a plurality of types of elements having a positional relationship rotationally symmetric with each other, and
a first center element disposed at a center of the first element group is an element of a type obtained by rotating a second center element disposed at a center of the second element group by 180 degrees.