Patent ID: 9525206
Filing Date: 2016-12-20
CPC Classification: G01S,H01Q

Claim Text:
1. A radar device comprising: at least one transmitting antenna transmitting radio waves and a plurality of receiving antennas receiving radio waves; and a substrate including a transceiver outputting radio waves to the transmitting antenna and receiving the radio waves from the plurality of receiving antennas; wherein each of the transmitting antenna and the plurality of receiving antennas includes a horn being rectangular in cross-section and a waveguide being rectangular in cross-section respectively; the transmitting antenna and the plurality of receiving antennas open toward a first direction; the transmitting antenna and the plurality of receiving antennas are arranged in a second direction perpendicular to the first direction; an inner surface of the waveguide has a first side face and a second side face, the first side face being longer than the second side face; the waveguide has a corner bend where the first side face is bent; one end of the waveguide is connected to the horn and another end of the waveguide couples to the transceiver; and at least part of the horn overlaps with the substrate when the horn is viewed in a third direction perpendicular to the first and the second direction.