Abstract: The invention relates to a radar antenna arrangement (1) for a vehicle (2), comprising at least one vehicle component (3), wherein the radar antenna arrangement (1) comprises a plurality of radar devices (4) which are configured to transmit and/or receive a radar beam (12). The radar devices (4) are arranged on a component surface (5) of the vehicle component (3). The invention provides for the radar antenna arrangement (1) to comprise at least one antenna row (6) for determining an azimuthal angle (10) of the radar beam (12), said antenna row comprising a plurality of the radar devices (4). Directly adjacent radar devices (4) have respective horizontal distances (8) from one another. The radar antenna arrangement (1) comprises at least one antenna column (7) for determining an elevation angle (11) of the radar beam (12), said antenna column comprising a plurality of the radar devices (4). Directly adjacent radar devices (4) have respective vertical distances (9) from one another.

Abstract: A radar system having at least one radar transmission unit, at least one radar reception unit, a central unit, and a glass fiber for connecting these units, wherein the central unit has a central optical transmission unit to provide an optical radar driver signal, and wherein the at least one radar transmission unit has an optical reception unit and a radar transmitter, wherein the optical reception unit receives the optical radar driver signal and converts the optical radar driver signal into an electrical radar driver signal and provides the electrical radar driver signal for driving the radar transmitter, wherein the at least one radar reception unit includes a radar receiver, a mixer and an optical modulation unit. Also disclosed is an associated method.

Abstract: A radar system having at least one radar transmission unit, at least one radar reception unit, a central unit, and a glass fiber for connecting these units, wherein the central unit has a central optical transmission unit to provide an optical radar driver signal, and wherein the at least one radar transmission unit has an optical reception unit and a radar transmitter, wherein the optical reception unit receives the optical radar driver signal and converts the optical radar driver signal into an electrical radar driver signal and provides the electrical radar driver signal for driving the radar transmitter, wherein the at least one radar reception unit includes a radar receiver, a mixer and an optical modulation unit. Also disclosed is an associated method.

Abstract: A monostatic multi-beam radar sensor for motor vehicles, having a group antenna, a planar lens having multiple inputs, and a homodyne mixer system, wherein the mixer system comprises multiple transfer mixers that are connected in parallel to the inputs of the lens.

Abstract: For an antenna device, in particular for a radar antenna device having excitation field and radome in front of it, the thickness of the radome is varied such that a location-dependent phase delay of the emitted or received wave front may be attained. Thus, tilts, in particular for the non-vertical installation of radar devices in motor vehicles, that lead to unwanted radiation lobe deviations, may be compensated for in a simple way.

Abstract: A planar waveguide structure for creating a phase gradient between the input signals of a system of antenna elements requires relatively little space and also ensures relatively low-loss beam deflection. The waveguide structure is provided on a dielectric microwave substrate, which has at least one conductive layer on both sides. At least one of the two conductive layers is structured and constitutes the signal side of the wave structure, while the other conductive layer is used as ground. The waveguide structure includes at least one parallel plate guide having beam lobe ports for signal feed and signal pickup. This parallel plate guide has a curved-shaped reflector contour so that it functions as a signal reflector.

Abstract: A monostatic multi-beam radar sensor for motor vehicles, having a group antenna, a planar lens having multiple inputs, and a homodyne mixer system, wherein the mixer system comprises multiple transfer mixers that are connected in parallel to the inputs of the lens.

Abstract: 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.

Abstract: In a device for measuring angular positions by using radar pulses and mutually overlapping beam characteristics of at least two antenna elements, a switchable phase shifter is provided in the signal path of at least one antenna element which is switchable in the time-division multiplexing between different phase states. For the radar received signals, an evaluation device is provided for the joint and especially simultaneous evaluation of signals of two antenna elements with the participation of antenna element, in whose signal path a switchable phase shifter is provided.

Abstract: In an antenna structure for series-fed, planar antenna elements, the spacing of the antenna elements to each other within a series-feed train is varied to influence the beam shaping.

Abstract: A planar waveguide structure for creating a phase gradient between the input signals of a system of antenna elements requires relatively little space and also ensures relatively low-loss beam deflection. The waveguide structure is provided on a dielectric microwave substrate, which has at least one conductive layer on both sides. At least one of the two conductive layers is structured and constitutes the signal side of the wave structure, while the other conductive layer is used as ground. The waveguide structure includes at least one parallel plate guide having beam lobe ports for signal feed and signal pickup. This parallel plate guide has a curved-shaped reflector contour so that it functions as a signal reflector.

Abstract: A device as well as a method for radiating and/or for receiving electromagnetic radiation provide that the setting of the angle of the beam lobes of the device in elevation may be managed in a simple and cost-effective manner. In this connection, it is provided that the phase shift between the electromagnetic radiation radiated and/or received by different antenna elements and the angle of the radiation and/or receiving of the electromagnetic radiation in elevation is able to be set: a) by varying the effective relative permittivity, e.g., of the propagation coefficient, of the line (20); and/or b) by the variably distanceable positioning, to the line and/or to the antenna elements, of at least one element formed at least partially of conductive material, e.g., metal.

Abstract: Novel concepts are proposed for line terminations of coplanar lines that are as anechoic as possible, having a neutral wire and two outer conductors that are situated at least from section to section on both sides of the neutral wire, the line termination including at least one resistor element, via which the neutral wire is connected at its end with the two outer conductors. A connection at the end between the two outer conductors exists independently of the at least one resistor element. Alternatively or in supplementation to this, at least one resistor element of the line termination is situated at a slanting angle to the neutral wire, i.e. at an angle which is either greater or less than 90°.

Abstract: In a device for measuring angular positions by using radar pulses and mutually overlapping beam characteristics of at least two antenna elements, a switchable phase shifter is provided in the signal path of at least one antenna element which is switchable in the time-division multiplexing between different phase states. For the radar received signals, an evaluation device is provided for the joint and especially simultaneous evaluation of signals of two antenna elements with the participation of antenna element, in whose signal path a switchable phase shifter is provided.

Abstract: Novel concepts are proposed for line terminations of coplanar lines that are as anechoic as possible, having a neutral wire and two outer conductors that are situated at least from section to section on both sides of the neutral wire, the line termination including at least one resistor element, via which the neutral wire is connected at its end with the two outer conductors. A connection at the end between the two outer conductors exists independently of the at least one resistor element. Alternatively or in supplementation to this, at least one resistor element of the line termination is situated at a slanting angle to the neutral wire, i.e. at an angle which is either greater or less than 90°.

Abstract: A device and a method for phase shifting on at least one single-layer or multilayer substrate, in particular a substrate also having at least one metallic layer, to which is applied at least one planar line, in particular in the form of a strip line or in the form of a symmetrical or asymmetrical coplanar line or in the form of a microstrip line or in the form of a slot line or in the form of a coplanar dual-strip line so that the advantages of a slow-wave structure may also be used in mechanically controllable phase shifters, the phase shift is adjustable by varying the effective dielectric constant, in particular the propagation coefficient, of the line by providing line sections going out from the line, in particular no-load line sections and/or in particular line sections short-circuited at their particular ends and/or stubs going out from the line and/or alternating line segments of a high impedance and line segments of a low impedance and/or discrete elements such as inductors, capacitors or inductive a

Abstract: The invention relates to a phase shifter for high-frequency electric lines (36), wherein phase shifting is essentially achieved by specifically selecting the line length, the device essentially consisting of a circuit arrangement (30) equipped with coplanar lines. The adjustment possibilities of the various-length coplanar lines (32, 34) with regard to ohmic damping and impedance are preselected in such a way that ohmic damping and impedance are essentially the same on the selectively controllable, various-length conductive paths (32, 34) of the circuit arrangement (30). Adjustment possibilities include the width w of the particular central conductor (24) and the width b of the outer conductor (22), in addition to the spacing g between the central conductor (24) and the outer conductor (22).