Patent ID: 9261588
Filing Date: 2016-02-16
CPC Classification: G01S,H01Q,H05K,Y10T

Claim Text:
1. A radar apparatus comprising: a printed circuit board having a top side, on which a radar antenna unit having a plurality of long-distance transmission array antennas and an RF circuit unit are mounted, and a bottom side, on which a base band circuit unit and a signal processing circuit unit are mounted; a base plate coupled to the printed circuit board; and a protective member coupled to the top side of the printed circuit board to cover the RF circuit unit in order to protect the RF circuit unit; and a power divider configured to divide a power to each of the plurality of long-distance transmission array antennas such that a highest power is applied to a long-distance transmission array antenna arranged at a center of the plurality of long-distance transmission array antennas and the supplied power decreases as approaching the opposite sides from the long-distance transmission array antenna arranged at the center, wherein the top side of the printed circuit board comprises a first portion on which the radar antenna unit is mounted, and a second portion on which the RF circuit unit is wire bonded and mounted, wherein the protective member covers only the second portion, wherein all the plurality of long-distance transmission array antennas have the same physical length, or one or more long-distance transmission array antennas among the plurality of long-distance transmission array antennas have different physical lengths, and wherein when the one or more long-distance transmission array antennas have the different physical lengths, the long-distance transmission array antenna arranged at the center has the longest physical length and the physical lengths of the remaining long-distance transmission array antennas decrease as approaching the opposite sides.