摘要:
A housing or housing part for a distance sensor, e.g., for motor vehicles, having at least one first housing part into which at least one member transparent to the sensor radiation for focusing the sensor radiation and/or at least one radome without intended focusing is/are integrated in the main radiation direction of the distance sensor. The housing or housing part has at least one second housing part into which at least one base plate having antenna elements is installed orthogonally to the main radiation direction of the distance sensor. A connecting line between the first housing part and the second housing part extends in a region between the base plate and the member transparent to the sensor radiation, and/or the radome. At least one plug connector is provided for electrical connection of the distance sensor to the motor vehicle. The connecting line is located in the region of the plug connector of the distance sensor, and is aligned co-axially to the main radiation direction of the distance sensor.
摘要:
An antenna lens for a distance sensor, there being recessed on one side of a lens base element grooves into which are placed electrically conductive traces which are encapsulated into the grooves. The electrically conductive traces are passed through the grooves over the edge of the lens base element and fastened.
摘要:
A motor vehicle radar system in which the position of the transmission/reception elements of the radar system can be changed relative to a focusing element, such as an antenna lens, in order to adjust the principal beam direction.
摘要:
A device for directionally emitting and/or receiving electromagnetic radiation includes at least one printed circuit board having at least one transmitting/receiving element, at least one focusing dielectric lens, and at least one additional prefocusing body, which is positioned between the transmitting/receiving element and the dielectric lens. A cover is positioned in the plane between the transmitting/receiving element and the dielectric lens, the cover having at least one bushing for the additional prefocusing body, and the cover surrounding and fixing in place the additional prefocusing body held in the bushing.
摘要:
In a lens arrangement for collimating radar waves for distance sensors, in particular for motor vehicles, several sublenses are arranged integrally next to one another. A lobe enlargement necessary for angular analysis is thereby achieved. The range is only slightly reduced as compared to a lens having a surface area of the same size.
摘要:
In order for it to be possible to manufacture a transition with a cost-effective stamping or diecasting or cold-molding process or with a plastic injection-molding process with subsequent metal plating, at least one ridge situated in the waveguide, which reduces the waveguide cross section in the direction of the stripline, has a cross section which tapers conically in the direction of the stripline.
摘要:
The invention relates to a housing (1) with radar-absorbent properties, in particular for a radar sensor in a motor vehicle, with electrically conductive particles whose dimensions are adapted to the frequency of the radar beams to be absorbed. The housing (1) comprises a material that as its basic component contains plastic, either unreinforced or reinforced with glass fibers, selectively mineral-filled, and contains as an additive steel fibers (2) in a mixture such that the specific conductivity .sigma. of the housing adheres to a predetermined value.
摘要:
A microwave antenna arrangement, made up of a focusing element and at least one feeder element, in which arrangement, to attain a small size, at least one component support is arranged in a spatial area between the focusing element and the at least one feeder element, electronic or electrical components being located on the component support. The component support has a cut-out to allow passage of the electronic waves. The component support and the electronic or electrical components are provided for processing signals other than those received or emitted by the at least one feeder element.
摘要:
A microwave oscillator includes a waveguide that is short-circuited on one side and a diode arranged therein, which receives its supply voltage by way of a coupling pin passed through a waveguide wall. At least one adjustment pin, extends into the waveguide and is adjustable in its penetration depth, for tuning the oscillator frequency. Because the adjustment pin is aligned at an acute angle to the coupling pin, the oscillator frequency can be tuned very precisely.
摘要:
A motor-vehicle radar system provided with at least one housing includes at least one send/receive element for sending and/or receiving electromagnetic waves, at least one first dielectric member in the beam path of the electromagnetic waves, and at least one arrangement of electrical conductor tracks which are in direct contact with the first dielectric member. It is possible to supply an electric power to the electrical conductor tracks, the electrical conductor tracks preferably being used to heat the first dielectric member, and the electrical conductor tracks being made of a material having a pronounced, positive temperature coefficient (PTC characteristic).