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US 12,681,140 B2Granted
Antenna device and radar system
AssigneeKabushiki Kaisha Toshiba
InventorsKentaro Wada, Koh Hashimoto, Ryota Sekiya, Hiroshi Yoshida
Life of this patent
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Abstract
According to one embodiment, an antenna device includes a transmitting antenna including a plurality of transmitting elements, and a receiving antenna including a plurality of receiving elements. A maximum value of a mutual coupling between the plurality of receiving elements is less than a maximum value of a mutual coupling between the plurality of transmitting elements.
Claims18
An antenna device, comprising:
- a transmitting antenna including a plurality of transmitting elements and a first substrate including a first face;
- and
- a receiving antenna including a plurality of receiving elements and a second substrate including a second face, a maximum value of a mutual coupling between the plurality of receiving elements being less than a maximum value of a mutual coupling between the plurality of transmitting elements,
- wherein:
- a plane including the second face crosses a plane including the first face,
- the plurality of transmitting elements are provided along the first face,
- the plurality of receiving elements are provided along the second face,
- the first face extends along a first direction and a second direction,
- the second direction crosses the first direction,
- the second face extends along the first direction and a third direction, and
- the third direction crosses a plane including the first direction and the second direction.
8 more elements
An antenna device comprising:
- a transmitting antenna including a plurality of transmitting elements;
- and
- a receiving antenna including a plurality of receiving elements, a maximum value of a mutual coupling between the plurality of receiving elements being less than a maximum value of a mutual coupling between the plurality of transmitting elements,
- wherein a shape of one of the pluralities of receiving elements is different from a shape of another one of the pluralities of receiving elements.
1 more element
An antenna device, comprising:
- a transmitting antenna including a plurality of transmitting elements;
- and
- a receiving antenna including a plurality of receiving elements, a maximum value of a mutual coupling between the plurality of receiving elements being less than a maximum value of a mutual coupling between the plurality of transmitting elements,
- wherein:
- the plurality of receiving elements include a plurality of first elements and a plurality of second elements,
- a first maximum value is less than the maximum value of the mutual coupling between the plurality of transmitting elements, and
- the first maximum value is a maximum value of mutual coupling between the plurality of first elements, a maximum value of mutual coupling between the plurality of second elements, and a maximum value of mutual coupling between the plurality of first elements and the plurality of second elements.
4 more elements
An antenna device, comprising:
- a transmitting antenna including a plurality of transmitting elements;
- and
- a receiving antenna including a plurality of receiving elements, a maximum value of a mutual coupling between the plurality of receiving elements being less than a maximum value of a mutual coupling between the plurality of transmitting elements,
- wherein:
- the plurality of transmitting elements include a plurality of third elements and a plurality of fourth elements,
- a second maximum value is greater than the maximum of the mutual coupling between the plurality of receiving elements, and
- the second maximum value is a maximum value of the maximum value of mutual coupling between the plurality of third elements, a maximum value of mutual coupling between the plurality of fourth elements, and a maximum value of mutual coupling between the plurality of third elements and the plurality of fourth elements.
4 more elements
Dependencies are inferred from the claim text.