Robert Boschgmbh

Reinhard Meschenmoser

Joerg Hilsebecher

Thomas Hansen

Thomas Schoeberl

Arne Zender

Oliver Lange

Thomas Focke

Joachim Selinger

Karl Schneider

Bernhard Schwaderer

Karl Nesemann

Wolfgang Ehrlinger

A radar sensor including an antenna array having multiple antenna elements situated next to one another and at least one feeding point at an outer antenna element. The antenna elements are connected in series via delay lines. The radar sensor has at least two transmitting and receiving units which are each suitable for generating and evaluating a radar signal at a predefined frequency. The at least two transmitting and receiving units are connected to a feeding point of the antenna array. The frequencies of the radar signals of the at least two transmitting and receiving units are predefinable independently of one another.

Radar sensor

An antenna has an antenna body having a plurality of first antenna elements, which are disposed along a first straight line. A hollow conductor, which extends between the first antenna elements, is disposed in the antenna body. The first antenna elements are developed as openings running between the hollow conductor and a surface of the antenna body. The antenna is designed to radiate a signal in a spatial direction that is a function of a frequency of the signal. The antenna body has an electrically insulating material that is coated with a conductive material.

Antenna

An antenna has an antenna body having a plurality of first antenna elements situated along a first straight line. The antenna body includes a first conductive grounded surface and a second conductive grounded surface, the first and second grounded surfaces being situated essentially parallel to one another. A dielectric is situated between the first and second grounded surfaces. A signal conductor is also situated between the first and second grounded surfaces. The first antenna elements are designed as apertures situated above the signal conductor in the first grounded surface. Furthermore, the antenna is designed to emit a signal in a direction in space, depending on a frequency of the signal. At least two of the first antenna elements differ from one another in such a way that their power emissions are different.

Scanning antenna

A device and a method for operating a navigation system having a data receiving device and a memory, map data of a map being stored in the memory, and when updated map data are received, these are entered, the map data being hierarchically organized and information being assigned to the map data regarding the update version of the map data.

Method for operating a navigation system

A device for generating microwave signals, e.g., for use in a distance and speed sensor in a motor vehicle, is provided. To this end, two laser sources are operated, whose emitted radiations are distinguished from each other by a set difference in wavelength. The two lasers are arranged in such a manner that the emitted laser beams overlap spatially. A photodiode is arranged in this region in which the two laser beams interfere. From the superimposition product of the two laser beams, this photodiode generates an electrical output signal that has the differential frequency of the two superimposed laser beams. In this context, the frequency difference of the two lasers is selected so that the frequency of the generated microwave radiation lies in the range of the radar beam to be generated.

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Hannover, Germany

Reinhard Meschenmoser