Patent ID: 9274216
Filing Date: 2016-03-01
CPC Classification: G01S,H01Q

Claim Text:
1. A radar apparatus comprising: an antenna unit having: a long range transmission antenna unit with a plurality of long range transmission array antennas; a short range transmission antenna unit with one or more short range transmission array antenna; and a reception antenna unit with a plurality of reception array antennas; and a signal transmission and reception unit for transmitting a signal through at least one of the long range transmission antenna unit and the short range transmission antenna unit, and receiving an echo signal of the transmitted signal reflected off surroundings through the reception antenna unit, wherein the long range transmission array antenna arranged in the middle of the plurality of long range transmission array antennas has the longest length and lengths of the other long range transmission array antennas decrease from the middle toward both sides, wherein the number of the plurality of the long range transmission array antennas is proportional to a sensing distance of a reference long sensing range, the number of the one or more short range transmission antenna is proportional to a sensing distance of a reference short sensing range, and the number of the plurality of long range transmission array antennas is larger than the number of the one or more short range array antenna.