OBSTRUCTION DETECTING EQUIPMENT TO BE MOUNTED ON VEHICLE

摘要

PROBLEM TO BE SOLVED: To improve isolation between a transmitting array antenna 16 and a receiving array antenna 17 in a radar system obstruction detecting equipment S for beind mounted on vehicle.

SOLUTION: An arrangement direction of transmitting antenna element 160-167 is inclined clockwise by a prescribed angleθto the vertical direction, so that directivity as the transmitting array antenna 16 can be set not only in the horizontal direction but also in the vertical direction. Transmission signals R1-R8 from the transmitting array antenna 16 can be transmitted in a direction distance from the receiving array antenna 17. As a result, the receiving antenna array 17 can be restrained from direct reception of transmission signals from the transmitting array antenna 16.

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