Abstract: A monostatic multi-beam radar sensor includes a group antenna and a mixer system made up of a plurality of transfer mixers connected to antenna elements of the group antenna. A first number of the transfer mixers is switched to isolation mode and a second number of the transfer mixers is switched to transfer mode in order to realize different directional characteristics for the transmit and receive operation.

Abstract: A monostatic multibeam radar sensor device for a motor vehicle, including a directional characteristic of an antenna unit having at least one transceiving channel and at least one receiving channel, and including a mixer system, which has an at least approximately isolating mixer for at least one of the receiving channels. The at least approximately isolating mixer includes a Gilbert cell mixer, which, due to a non-ideal isolation between an input of the local oscillator signal and the corresponding receiving channel, emits a transmission power via this receiving channel, using an overcoupling signal, the transmission power influencing the directional characteristic of the antenna unit and the directional characteristic being switchable by controlling the phase position of the overcoupling signal.

Abstract: Radar sensor for motor vehicles, having a transmitting and receiving device for microwaves, in which beam-shaping devices which are independent of one another are provided for the azimuth and the elevation, and the beam-shaping device for the elevation has a cylindrical lens.

Abstract: Radar sensor having a mixer for mixing a received signal with a reference signal and having a device for compensating interference signals which would overload the mixer, wherein the device for compensating the interference signals has an adjustable reflection point at the reference input of the mixer.

Abstract: A radar sensor having a transmission module and a signal stabilizer, which are situated on a shared circuit board, a casing, which accommodates the signal stabilizer and forms a shield against high frequency radiation of the signal stabilizer together with a conductive layer of the circuit board, and having a connection line, which crosses through the shield, to connect the signal stabilizer to the transmission module, in which the connection line is embedded in the circuit board in insulated fashion.

Abstract: FMCW radar sensor for motor vehicles, having at least one antenna element and a modulation device for feeding the antenna element using a frequency-modulated transmission signal, whose frequency periodically sweeps a frequency band, characterized in that the antenna element has multiple subelements, which are positioned in a vertical column and fed serially, and the modulation device is implemented for the purpose of variably setting the frequency position of the frequency band.

Abstract: 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.

Abstract: In a multibeam radar sensor apparatus having at least two transmission/reception channels, whose signal paths each include an antenna and a mixer, at least one first mixer is configured bidirectionally as a transfer mixer, and at least one second mixer is switchable from a first into a second operating state; in the first operating state, the mixer is bidirectionally configured as a transfer mixer, and in the second operating state, the mixer being configured in an at least approximately isolating manner as a receiving mixer.

Abstract: A monostatic multibeam radar sensor device for a motor vehicle, including a directional characteristic of an antenna unit having at least one transceiving channel and at least one receiving channel, and including a mixer system, which has an at least approximately isolating mixer for at least one of the receiving channels. The at least approximately isolating mixer includes a Gilbert cell mixer, which, due to a non-ideal isolation between an input of the local oscillator signal and the corresponding receiving channel, emits a transmission power via this receiving channel, using an overcoupling signal, the transmission power influencing the directional characteristic of the antenna unit and the directional characteristic being switchable by controlling the phase position of the overcoupling signal.

Abstract: A sensor device, in particular a radar sensor device for a motor vehicle, in whose beam path at least one antenna exciter and at least one lens are situated, in which at least one diaphragm having a variable azimuthal opening width for realizing a variable azimuthal detection range of the radar sensor device is situated in the beam path between the at least one antenna exciter and the at least one lens.

Abstract: A multi-beam radar sensor has a plurality of antenna elements disposed next to each other, a collective lens situated at a distance in front of the antenna elements, and an additional preliminary focusing lens disposed in such a way that it affects only a portion of the radar radiation transmitted from, and/or received by, the antenna elements.

Abstract: A radar sensor for motor vehicles includes a plurality of transmission and receiving antennas, which differ in their azimuthal directivity characteristic and to which a separate mixer is assigned, which mixes a transmitted signal with a received signal, at least one of the mixers being a transfer mixer, and at least one other of the mixers having a lower transfer output, wherein the assignment of the transmission and receiving antennas is asymmetrical with respect to the mixers differing in their transfer output.

Abstract: A monostatic multi-beam radar sensor includes a group antenna and a mixer system made up of a plurality of transfer mixers connected to antenna elements of the group antenna. A first number of the transfer mixers is switched to isolation mode and a second number of the transfer mixers is switched to transfer mode in order to realize different directional characteristics for the transmit and receive operation.

Abstract: In a bistatic array antenna, beam focusing in preferred directions of the array antenna occurs with the aid of a focusing arrangement in such a way that beam focusing occurs both in a first preferred direction for the array elements of the transmit mode as well as in another second preferred direction for the array elements of the receive mode.

Abstract: Radar sensor for motor vehicles, having a transmitting and receiving device for microwaves, in which beam-shaping devices which are independent of one another are provided for the azimuth and the elevation, and the beam-shaping device for the elevation has a cylindrical lens.

Abstract: A radar sensor having a transmission module and a signal stabilizer, which are situated on a shared circuit board, a casing, which accommodates the signal stabilizer and forms a shield against high frequency radiation of the signal stabilizer together with a conductive layer of the circuit board, and having a connection line, which crosses through the shield, to connect the signal stabilizer to the transmission module, in which the connection line is embedded in the circuit board in insulated fashion.

Abstract: A radar system for motor vehicles, having a least one radar sensor having a range of less than 50 m for monitoring traffic in an adjacent lane, wherein the radar sensor has a phase-controlled antenna and a control device for setting a plurality of radar lobes having different geometries.

Abstract: A multi-beam radar sensor has a plurality of antenna elements disposed next to each other, a collective lens situated at a distance in front of the antenna elements, and an additional preliminary focusing lens disposed in such a way that it affects only a portion of the radar radiation transmitted from, and/or received by, the antenna elements.

Abstract: A device for emitting and receiving electromagnetic radiation, in particular microwave radiation, including at least one feed element, at least one hollow conductor and at least one rod radiator, the feed element being situated on a first end of the hollow conductor in such a way that the power emitted by the feed element is passed through the hollow conductor and/or the received power that is passed through the hollow conductor is injected into the feed element and the rod radiator is situated at a second end of the hollow conductor in such a way that the transmit power passed through the hollow conductor is bundled and emitted via the rod radiator and/or the incoming received power is bundled by the rod radiator and conducted into the hollow conductor.

Abstract: In an antenna system, lens elements are provided in or on the radome for beam formation and/or for influencing the gain of the antenna system.