RADAR SENSOR FOR MOTOR VEHICLES
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Accused Products
Abstract
A radar sensor for motor vehicles, having a transmitting antenna in the form of a planar group antenna having multiple antenna elements situated side by side on a shared planar substrate, and having a feed network and a switching device for supplying microwave power to the antenna elements. The antenna elements are situated at equal distances in at least one row; the feed network is designed for supplying the antenna elements with the microwave power having a phase shift which increases at constant increments from one end of the row to the other; and the switching device is designed for controlling the supply of the microwave power to the antenna elements in such a way that, depending on the operating mode, the supply is implemented in a mirror-inverted fashion from opposite ends of the at least one row.
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Citations
16 Claims
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1-8. -8. (canceled)
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9. A radar sensor for a motor vehicle, comprising:
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a transmitting antenna in the form of a planar group antenna having multiple antenna elements situated side by side on a shared planar substrate, the antenna elements being situated at equal distances in at least one row; a feed network for supplying the antenna elements with microwave power having a phase shift which increases at constant increments from one end of the row to the other; and a switching device to supply the microwave power to the antenna elements, and to control the supply of the microwave power to the antenna elements in such a way that, depending on operating mode, the supply is implemented in a minor-inverted fashion from opposite ends of the at least one row. - View Dependent Claims (10, 11, 12, 13)
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14. A motor vehicle having a radar sensor, the radar sensor including a transmitting antenna in the form of a planar group antenna having multiple antenna elements situated side by side on a shared planar substrate, the antenna elements being situated at equal distances in at least one row, a feed network for supplying the antenna elements with microwave power having a phase shift which increases at constant increments from one end of the row to the other, and a switching device to supply the microwave power to the antenna elements, and to control the supply of the microwave power to the antenna elements in such a way that, depending on operating mode, the supply is implemented in a mirror-inverted fashion from opposite ends of the at least one row, a substrate of the radar sensor forming a 45°
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- View Dependent Claims (15)
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16. A driver assistance system for a motor vehicle, comprising:
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a lane change assist system for position finding of vehicles on the same lane as the motor vehicle or an adjacent lane in the rear area of the motor vehicle; a cross-traffic alert function for the position finding of vehicles which move transversely to a longitudinal axis of the motor vehicle; and a radar sensor including a transmitting antenna in the form of a planar group antenna having multiple antenna elements situated side by side on a shared planar substrate, the antenna elements being situated at equal distances in at least one row, a feed network for supplying the antenna elements with the microwave power having a phase shift which increases at constant increments from one end of the row to the other, and a switching device to supply microwave power to the antenna elements, and to control the supply of the microwave power to the antenna elements in such a way that, depending on operating mode, the supply is implemented in a mirror-inverted fashion from opposite ends of the at least one row, the operating mode of which is selectable with the aid of the switching device as a function of a desired assistance function.
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Specification