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US 11,909,119 B2Granted
Circular polarization array antenna device
AssigneeMurata Manufacturing Co., Ltd.
InventorsYoshiki Yamada, Kengo Onaka
Life of this patent
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Abstract
An antenna device is formed by arranging radiation elements each radiating a circularly polarized wave in a matrix of three rows and four columns. The radiation elements include three sets of radiation elements of four types having a positional relationship rotationally symmetric with each other. The radiation elements are arranged such that adjacent elements are of different types.
Claims20
A circular polarization array antenna device, comprising:
- an element group that includes a plurality of elements each configured to radiate a circularly polarized wave and arranged in a matrix of N rows and M columns, in which N is an odd number of three or more and M is four or more being a multiple of four, wherein
- the plurality of elements include the same number of elements of four types having a positional relationship rotationally symmetric with each other, and
- the plurality of elements are arranged such that adjacent elements are of types different from each other.
A circular polarization array antenna device, comprising:
- an element group that includes a plurality of elements each configured to radiate a circularly polarized wave and arranged in a matrix of three rows and K columns, in which K is an even number of four or more, wherein
- the plurality of elements include elements of four types having a positional relationship rotationally symmetric with each other, and
- the elements of four types include
- a first type element,
- a second type element obtained by rotating the first type element by 90 degrees in a predetermined direction,
- a third type element obtained by rotating the first type element by 270 degrees in the predetermined direction, and
- a fourth type element obtained by rotating the first type element by 180 degrees in the predetermined direction.
4 more elements
A circular polarization array antenna device, comprising:
- a plurality of antenna elements each configured to radiate a circularly polarized wave, wherein
- the plurality of antenna elements are arranged in a matrix of N rows and M columns, in which N is an odd number of three or more and M is four or more being a multiple of four,
- the plurality of antenna elements include four types of antenna elements, each of the four types of antenna elements having a 90 degree symmetrically rotational relationship with respect to another of the types of antenna elements, and
- the plurality of elements are arranged such that adjacent elements are of different types.
1 more element
Dependencies are inferred from the claim text.