摘要:
A radar sensor for motor vehicles, having a source of radar radiation and a lens, which is situated in front of the source, is made of a material that refracts radar radiation and has a convex surface on at least one side, wherein the convex surface has a greater curvature in elevation than in azimuth.
摘要:
The invention relates to a radome for a radar sensor in a motor vehicle. The radome comprises a first region which is transparent to at least a certain type of electromagnetic waves, in particular radar waves, and a second region which comprises a shield, so that the second region is opaque to the specific type of electromagnetic waves. The invention likewise relates to a radar sensor and to a use thereof.
摘要:
The invention relates to a radar device (2), comprising an antenna (4) and a circuit module (8). The circuit module (8) is designed to set an electric signal to be provided for the antenna such that the antenna (4) emits a continuous modulated radar signal for a remote range or a pulsed modulated radar signal for a close-up range, depending on the circuit. The invention further relates to a method for the radar-supported detection of a surrounding area.
摘要:
The invention relates to an antenna structure consisting of several serially supplied patch elements, wherein a slot coupling (31,33) is provided on one of the patch elements opposite the transmission supply line (50b) in order to influence the radiant emittance of said patch element.
摘要:
The invention relates to an antenna arrangement for vehicle-to-vehicle communication, wherein at least two antenna transmitters (12, 13), each having a unidirectional directional diagram, are positioned in such a manner that a combination of the unidirectional directional diagrams of the antenna transmitters generates a largely omnidirectional directional diagram by means of a method for transmitting and/or receiving.
摘要:
The invention relates to a monostatic multibeam radar sensor for motor vehicles, said radar sensor comprising a group antenna (22), a planar lens (18) comprising a plurality of ports (16), and a homodyne mixer system. The invention is characterised in that the mixer system comprises a plurality of transfer mixers (14) that are connected in parallel to the ports (16) of the lens (18).
摘要:
In a radar system, a switcher is provided for switching over between at least two different directional characteristics, in particular for different distance ranges, of at least two transmitting antennas. On the receiving side, a combined evaluation of the digitized signals of at least two receiving antennas is performed, in the manner of a correlation of the receiving antenna signals.