A radome covers an antenna substrate a millimeters band - radar device, wherein in one piece with the radome constructed partition the interior of the radome in a first interior space, the corresponding to a transmitting antennas section is arranged, and in a second interior space, the corresponding to a reception antennas section is arranged, subdivided. Consequently, the insulation between a transmitting and receiving radar waves is improved, in that the quantity of transmitted radar waves, which the reception antennas section directly is achieved, is reduced.
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