Radar sensor, motor vehicle and method for producing a radar sensor
A radar sensor and radar signal technology, which is applied in the direction of antennas, instruments, and vehicle parts suitable for movable objects, can solve the problems of loss, interference emission, interference incidence, etc., achieve strong anti-interference ability, reduce development and manufacturing The effect of cost, efficiency and anti-interference improvement
Active Publication Date: 2020-07-31
AUDI AG
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, this open conductor structure is susceptible to interference in, interference out, and loss
Method used
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Embodiment Construction
[0053] figure 1 A general schematic diagram of a radar sensor 1 according to the invention is shown. The radar sensor comprises a printed circuit board 3 fixed in a housing 2 as a substrate, on which, in addition to a monolithic integrated microwave circuit 4 (MMIC), other components, which are only shown schematically here, can also be arranged. 5, such as capacitors, other chips, etc. The radar sensor 1 also has an antenna arrangement 6 which, for example, can also be arranged on the circuit board 3 as a patch antenna arrangement, but can also be arranged outside the circuit board 3 . The MMIC 4 has various connections, designed as ball grid pins of a ball grid array, which are arranged on the underside of the MMIC facing the printed circuit board 3 , including in particular the antenna connection 7 and the ground 8 . The antenna connection 7 is to be connected to the antenna arrangement 6 via a waveguide 9 , which is here only schematically shown, via which radar signals ...
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The invention relates to a radar sensor 1, having an antenna assembly 6 and a monolithic microwave integrated circuit 4 that is arranged on a circuit board 3 of the radar sensor 1 and comprises at least one antenna connection 7 that is to be connected to the antenna assembly 6, in particular is implemented in a ball grid 13, provides radar signals to be emitted, which can be generated by the microwave circuit 4, or accepts received radar signals from the antenna assembly 6, the connection of the antenna connection to the antenna assembly 6 being formed at least in part by a waveguide, wherein,for connecting the at least one antenna connection 7 to the waveguide designed as a wave duct, the circuit board 3 comprises, at the position of the antenna connection 7, a through-opening leading tothe side of the circuit board opposite the microwave circuit 4, through which the antenna connection 7 is connected to a radiation element 17 projecting into the waveguide 19 arranged on the oppositeside of the circuit board at the position of the antenna connection.
Description
technical field [0001] The invention relates to a radar sensor comprising an antenna arrangement and a monolithic integrated microwave circuit (MMIC) arranged on a circuit board of the radar sensor, the monolithic integrated microwave circuit having at least one antenna connection, the at least one antenna connection Can be connected with the antenna device, especially realized in the ball grid, the at least one antenna connection part provides the radar signal to be transmitted or receives the radar signal received by the antenna device, which can be generated by the microwave circuit, wherein the antenna connection part is connected with the antenna device The connection is formed at least partially via the waveguide. Furthermore, the invention relates to a motor vehicle and a method for producing such a radar sensor. Background technique [0002] The use of radar sensors in motor vehicles has been proposed in various ways in the prior art. In particular, radar sensors a...
Claims
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IPC IPC(8): H01Q1/32H01Q1/50H01P5/08G01S7/02
CPCH01Q1/3233H01Q1/50H01P5/08G01S7/02H01L23/49822H01L23/49827H01L23/66H01L2223/6627H01L2223/6677H01L2223/6683G01S7/032G01S13/931H01L2224/16225H01L2924/15192H05K1/181H05K2201/10734H05K1/113H05K2201/10098H05K1/0243G01S7/027H01L23/49816H01Q1/2283B60Y2400/3017H01Q23/00B60W2420/408
Inventor N·科赫
Owner AUDI AG