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1. US20190302254 - RADAR DEVICE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

Claims

1. A radar device comprising:
a transmission antenna including a plurality of transmission element antennae;
a reception antenna, including a plurality of reception element antennae, having a structure different from the transmission antenna; and
a signal processing circuit to execute processing on a signal corresponding to a radio wave emitted by the transmission antenna and processing on a signal corresponding to a radio wave received by the reception antenna, wherein
the transmission antenna further includes a transmission dielectric substrate where the plurality of transmission element antennae is arranged in a first direction, a length in the first direction is longer than a length in a second direction orthogonal to the first direction, and the transmission antenna includes a plurality of channels and performs beam scanning on a vertical plane,
the reception antenna further includes a reception dielectric substrate where the plurality of reception element antennae is arranged in a third direction, a length in the third direction is longer than a length in a fourth direction orthogonal to the third direction, the third direction is orthogonal to the first direction, and the reception antenna includes a plurality of channels and performs beam scanning on a horizontal plane, and
each of the transmission antenna and the reception antenna includes a plurality of channels, a two-dimensional planar antenna includes a combination of the channels of the transmission antenna and the channels of the reception antenna and is mounted on an automobile.
2- 14. (canceled)
15. The radar device according to claim 1, wherein
the transmission antenna is arranged along a first side of a windshield of the automobile, and the first direction is parallel to the first side, and
the reception antenna is arranged along a second side of the windshield, the third direction is parallel to the second side, and the second side is orthogonal to the first side.
16. The radar device according to claim 15, wherein
the windshield includes a first colored portion provided along the first side and a second colored portion provided along the second side,
the transmission antenna is arranged on a seat side of the automobile than the first colored portion, and
the reception antenna is arranged on the seat side of the automobile than the second colored portion.
17. The radar device according to claim 1, wherein
the transmission antenna is arranged at a first portion of the automobile,
the reception antenna is arranged at a second portion of the automobile, and
one or both of the first portion and the second portion is a part of an outer periphery of one component of the automobile or a bent portion of the component.
18. The radar device according to claim 1, wherein
the transmission antenna is arranged at a first portion of the automobile,
the reception antenna is arranged at a second portion of the automobile, and
one or both of the first portion and the second portion is a part of a support supporting a rearview mirror included in the automobile or a part of the rearview mirror.
19. The radar device according to claim 1, wherein
the transmission antenna is arranged at a first portion of the automobile,
the reception antenna is arranged at a second portion of the automobile, and
one or both of the first portion and the second portion is a part of a camera that is a part of a collision prevention device mounted on the automobile.
20. The radar device according to claim 1, wherein
the transmission antenna is arranged at a first portion of the automobile,
the reception antenna is arranged at a second portion of the automobile, and
one or both of two or more of the transmission antennae and the reception antennae are arranged in the automobile.
21. The radar device according to claim 1, wherein
the signal processing circuit that is a structure different from the transmission antenna and the reception antenna is arranged in the automobile.