Radar module for radar system on motor vehicle
First Claim
1. A radar module for a radar alarm system on a motor vehicle for detecting a motor vehicle in an adjacent lane behind the motor vehicle, comprising:
- a near-region monitoring antenna for radiating a relatively wide electromagnetic-wave beam in a near region positioned behind the motor vehicle and extending over an adjacent lane; and
a far-region monitoring antenna for radiating a relatively narrow electromagnetic-wave beam in a far region positioned behind the motor vehicle and extending over the adjacent lane.
1 Assignment
0 Petitions
Accused Products
Abstract
A FM radar alarm system for use on a motor vehicle detects a following motor vehicle in an adjacent lane behind the motor vehicle. The FM radar alarm system includes an FM radar module including a near-region monitoring antenna and a far-region monitoring antenna. The near-region monitoring antenna radiates a relatively wide radio-wave beam in a near region positioned behind the motor vehicle and extending over an adjacent lane. The far-region monitoring antenna radiates a relatively narrow radio-wave beam in a far region positioned behind the motor vehicle and extending over the adjacent lane.
326 Citations
10 Claims
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1. A radar module for a radar alarm system on a motor vehicle for detecting a motor vehicle in an adjacent lane behind the motor vehicle, comprising:
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a near-region monitoring antenna for radiating a relatively wide electromagnetic-wave beam in a near region positioned behind the motor vehicle and extending over an adjacent lane; and a far-region monitoring antenna for radiating a relatively narrow electromagnetic-wave beam in a far region positioned behind the motor vehicle and extending over the adjacent lane. - View Dependent Claims (2)
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3. A radar module for a radar alarm system on a motor vehicle for detecting a motor vehicle in an adjacent lane behind the motor vehicle, comprising:
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a near-region monitoring antenna for radiating a relatively wide radio-wave beam in a near region positioned behind the motor vehicle and extending over an adjacent lane, and receiving a reflected radio-wave beam; a far-region monitoring antenna for radiating a relatively narrow radio-wave beam in a far region positioned behind the motor vehicle and extending over the adjacent lane, and receiving a reflected radio-wave beam; a radio-wave signal generator for generating a radio-wave signal; a transmission path including an electric energy coupler for supplying the radio-wave signal from said radio-wave signal generator to said near-region monitoring antenna and said far-region monitoring antenna; and a mixer coupled to said transmission path for generating a beat signal by mixing at least one of the reflected radio-wave signal beams with the radio-wave signal generated by said radio-wave signal generator. - View Dependent Claims (4, 5, 6)
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7. An FM radar module for a radar alarm system on a motor vehicle for detecting a motor vehicle in an adjacent lane behind the motor vehicle, comprising:
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a near-region monitoring antenna for radiating a relatively wide FM signal beam in a near region positioned behind the motor vehicle and extending over an adjacent lane, and receiving a reflected FM signal beam; a far-region monitoring antenna for radiating a relatively narrow FM signal beam in a far region positioned behind the motor vehicle and extending over the adjacent lane, and receiving a reflected FM signal beam; an FM signal generator for generating an FM signal; a transmission path including an electric energy coupler for supplying the FM signal from said FM signal generator to said near-region monitoring antenna and said far-region monitoring antenna; and a mixer coupled to said transmission path for generating a beat signal by mixing at least one of the reflected FM signal beams with the FM signal generated by said FM signal generator. - View Dependent Claims (8, 9, 10)
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Specification