Compact volume scan end-fire radar for vehicle applications
First Claim
1. A vehicular radar system for providing a volumetric scan of an environment of a vehicle, comprising:
- a first antenna array having two or more tapered slot end-fire antennas positioned adjacent to and planar to each other;
a second antenna array having two or more tapered slot end-fire antennas positioned adjacent to and planar to each other, the two or more tapered slot end-fire antennas of the first antenna array being adjacent to the two or more tapered slot end-fire antennas of the second antenna array in a direction parallel to a plane of the two or more tapered slot end-fire antennas of the first antenna array, each of the two or more tapered slot end-fire antennas of the first antenna array and the two or more tapered slot end-fire antennas of the second antenna array having an antenna structure with a first wave-shaped section and a second wave-shaped section entirely spaced apart and oriented parallel to each other; and
a radio frequency integrated circuit (RFIC) coupled to the first antenna array and the second antenna array and configured to;
control the two or more tapered slot end-fire antennas of the first antenna array and the two or more tapered slot end-fire antennas of the second antenna array to transmit a signal to form one or more beams to scan in three-dimensions.
3 Assignments
0 Petitions
Accused Products
Abstract
A vehicular radar system with antenna structures to provide volumetric radar scanning for use in vehicles. The vehicular radar system includes a first antenna array having two or more tapered slot end-fire antennas. The vehicular radar system includes a second antenna array having two or more tapered slot end-fire antennas positioned adjacent to the two or more tapered slot end-fire antennas such that the first antenna array is stacked above the second antenna array. A radio frequency integrated circuit (RFIC) is coupled to the first antenna array and the second antenna array. The RFIC is configured to control each of the two or more tapered slot end-fire antennas of the first antenna array and the two or more tapered slot end-fire antennas of the second antenna array to transmit a signal. At least some signals have different phases so they may be combined to form a three-dimensional radar beam.
69 Citations
20 Claims
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1. A vehicular radar system for providing a volumetric scan of an environment of a vehicle, comprising:
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a first antenna array having two or more tapered slot end-fire antennas positioned adjacent to and planar to each other; a second antenna array having two or more tapered slot end-fire antennas positioned adjacent to and planar to each other, the two or more tapered slot end-fire antennas of the first antenna array being adjacent to the two or more tapered slot end-fire antennas of the second antenna array in a direction parallel to a plane of the two or more tapered slot end-fire antennas of the first antenna array, each of the two or more tapered slot end-fire antennas of the first antenna array and the two or more tapered slot end-fire antennas of the second antenna array having an antenna structure with a first wave-shaped section and a second wave-shaped section entirely spaced apart and oriented parallel to each other; and a radio frequency integrated circuit (RFIC) coupled to the first antenna array and the second antenna array and configured to; control the two or more tapered slot end-fire antennas of the first antenna array and the two or more tapered slot end-fire antennas of the second antenna array to transmit a signal to form one or more beams to scan in three-dimensions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicular radar system for providing a volumetric scan of an environment of a vehicle, comprising:
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a first antenna array having two or more tapered slot end-fire antennas positioned adjacent to and planar to each other; a second antenna array having two or more tapered slot end-fire antennas positioned adjacent to and planar to each other, the two or more tapered slot end-fire antennas of the first antenna array being adjacent to the two or more tapered slot end-fire antennas of the second antenna array in a direction parallel to a plane of the two or more tapered slot end-fire antennas of the first antenna array, each of the two or more tapered slot end-fire antennas of the first antenna array and the two or more tapered slot end-fire antennas of the second antenna array having an antenna structure with a first wave-shaped section and a second wave-shaped section entirely spaced apart and oriented parallel to each other; a first radio frequency integrated circuit (RFIC) coupled to the first antenna array and configured to control the two or more tapered slot end-fire antennas of the first antenna array to transmit a first signal to form a first beam having a first shape and a first size; and a second RFIC coupled to the second antenna array and configured to control the two or more tapered slot end-fire antennas of the second antenna array to transmit a second signal to form a second beam having a second shape and a second size, the first shape or the first size being different than the second shape or the second size, respectively, the first beam and the second beam being used for radar scanning. - View Dependent Claims (10, 11, 12)
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13. A vehicular radar system for providing three-dimensional information regarding an environment of a vehicle, the vehicular radar system comprising:
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a first end-fire antenna being on a first plane; a second end-fire antenna located adjacent to the first end-fire antenna and on the first plane with the first end-fire antenna; a third end-fire antenna being on a second plane and being adjacent to the first end-fire antenna in a direction parallel to the first plane; and a fourth end-fire antenna located adjacent to the third end-fire antenna and on the second plane, the fourth end-fire antenna being adjacent to the second end-fire antenna in a direction parallel to the first plane, each of the first end-fire antenna, the second end-fire antenna, the third end-fire antenna and the fourth end-fire antenna having an antenna structure with a first wave-shaped section and a second wave-shaped section entirely spaced apart and oriented parallel to each other. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification