摘要:
The invention relates to a radar unit (2), having a lens (3) for forming radar rays for a radar antenna (12), wherein the lens (3) is configured of a number of plates (4) that are disposed next to each other. In the method according to the invention for providing radar rays, the radar rays are formed using a lens (3) configured of a number of plates (4) that are disposed next to each other. The invention further relates to a computer program and a computer program product.
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:
Disclosed is a device for measuring angle positions by means of radar pulses and overlapping beam characteristics of at least two antenna elements (1, 2). A phase advancer (3) which can be shifted in time-division multiplex between different phase states is provided in the signal path of at least one antenna element. An evaluation device (7) is provided for the received radar signals in order to jointly and especially simultaneously evaluating signals of two antenna elements (1, 2) with the aid of the antenna element (2), in the signal path of which the shiftable phase advancer (3) is provided.
摘要:
An antenna system for radar sensors, for example in vehicles (automatic adaptive cruise control system (ACC)), having at least one planar group antenna (10) which comprises a feed line (14) and a plurality of antenna elements (16, 18) which are integrated into the feed line. The group antenna (10) has at least two antenna gaps (20, 22) which run parallel to one another and which are connected to one another at one end via a bypass line (24). The length of said bypass line (24) is dimensioned such that the antenna gaps are overall in phase with one another. The power which still remains at the end of the first antenna gap does not need to be reflected but instead is irradiated via the antenna elements of the second antenna gap. The phase and amplitude assignments are selected such that the directional characteristic is improved.
摘要:
Array antenna for radar sensors, comprising a supply line (14), a plurality of antenna elements (10) that are connected to the supply line by respective feeders (12) and circuit elements (16, 18, 20) for the power distribution to the antenna elements (10), characterized in that one end (15) of the supply line (14) is reflective and the circuit elements (16, 18, 20) for power distribution are exclusively arranged in the feeders (12).