FMCW radar sensor for motor vehicles
First Claim
Patent Images
1. An FMCW radar sensor for a motor vehicle, comprising:
- at least one antenna element having an emission characteristic;
a microwave lens having at least one directionality characteristic; and
at least one driving circuit having a modulation device, the modulation device variably setting a frequency position of a frequency band to alter a specific variation of the emission characteristic in a direction extending along the directionality characteristic;
wherein the antenna element has multiple subelements which are positioned in a vertical column and fed serially.
1 Assignment
0 Petitions
Accused Products
Abstract
FMCW radar sensor for motor vehicles, having at least one antenna element and a modulation device for feeding the antenna element using a frequency-modulated transmission signal, whose frequency periodically sweeps a frequency band, characterized in that the antenna element has multiple subelements, which are positioned in a vertical column and fed serially, and the modulation device is implemented for the purpose of variably setting the frequency position of the frequency band.
29 Citations
20 Claims
-
1. An FMCW radar sensor for a motor vehicle, comprising:
-
at least one antenna element having an emission characteristic; a microwave lens having at least one directionality characteristic; and at least one driving circuit having a modulation device, the modulation device variably setting a frequency position of a frequency band to alter a specific variation of the emission characteristic in a direction extending along the directionality characteristic; wherein the antenna element has multiple subelements which are positioned in a vertical column and fed serially. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A driver assistance system for a motor vehicle, comprising:
-
an FMCW radar sensor including at least one antenna element having an emission characteristic, a microwave lens having at least one directionality characteristic, and at least one driving circuit having a modulation device for variably setting a frequency position of a frequency band to alter a specific variation of the emission characteristic in a direction extending along the directionality characteristic; wherein the antenna element has multiple subelements which are positioned in a vertical column and fed serially. - View Dependent Claims (13, 14, 15, 16, 17)
-
-
18. A driver assistance system for a motor vehicle, comprising:
an FMCW radar sensor including; a microwave lens having at least one directionality characteristic; and at least one circuit board including; at least one antenna element having an emission characteristic, the antenna element having multiple subelements which are positioned in a vertical column and fed serially, and at least one driving circuit including a modulation device for variably setting a frequency position of a frequency band to alter a specific variation of the emission characteristic in a direction extending along the directionality characteristic.
-
19. A driver assistance system for a motor vehicle, comprising:
-
an FWCM radar sensor including at least one antenna element having an emission characteristic, at least one microwave lens having at least one directionality characteristic, and at least one driving circuit having a modulation device for variably setting a frequency position of a frequency band to alter a specific variation of the emission characteristic in a direction extending along the directionality characteristic; and a functional module which is configured to cause a change of the frequency position of the frequency band and to recognize blinding of the radar sensor when a received signal remains unaffected by the change of the frequency position, wherein the antenna element has multiple subelements which are positioned in a vertical column and fed serially. - View Dependent Claims (20)
-
Specification