DUAL-BAND ANTENNA ARRAY AND RF FRONT-END FOR MM-WAVE IMAGER AND RADAR
First Claim
1. A dual-band radar, comprising:
- a first planar antenna configured to transmit or receive at a first frequency, the first planar antenna having a plurality of first patches, each of the plurality of first patches defining a plurality of perforations;
a second planar antenna configured to transmit or receive at a second frequency, the second planar antenna spatially overlapping with the first planar antenna and having a plurality of second patches, each of the plurality of second patches aligning with one of the plurality of perforations of the first planar antenna; and
a transceiver coupled to the first planar antenna and the second planar antenna, the transceiver is configured to generate or receive signals having the first frequency or the second frequency.
2 Assignments
0 Petitions
Accused Products
Abstract
The radar includes a PCB having a top surface and a bottom surface, and a processor mounted on the bottom surface of the PCB. The radar includes a second liquid crystal polymer layer formed on the top surface of the printed circuit board, a second microstrip array printed on the second liquid crystal polymer layer, the second microstrip array having a patch, a first liquid crystal polymer layer formed on the second liquid crystal polymer layer, a first microstrip array printed on the first liquid crystal polymer layer, the first microstrip array having a perforated patch, an antenna positioned underneath the patch and connected to the second microstrip array, and a transmit/receive module connected to a bottom surface of the second liquid crystal polymer layer and configured to transmit a first frequency signal to the first microstrip array and a second frequency signal to the second microstrip array.
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Citations
20 Claims
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1. A dual-band radar, comprising:
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a first planar antenna configured to transmit or receive at a first frequency, the first planar antenna having a plurality of first patches, each of the plurality of first patches defining a plurality of perforations; a second planar antenna configured to transmit or receive at a second frequency, the second planar antenna spatially overlapping with the first planar antenna and having a plurality of second patches, each of the plurality of second patches aligning with one of the plurality of perforations of the first planar antenna; and a transceiver coupled to the first planar antenna and the second planar antenna, the transceiver is configured to generate or receive signals having the first frequency or the second frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A radar for use in a motor vehicle, comprising:
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a first substrate layer defining a plurality of perforations; a first patch array printed on the first substrate layer, and configured to transmit or receive at a first frequency, the first patch array having a plurality of first patches, each of the plurality of first patches defining a plurality of openings, each of the plurality of openings aligning with one of the plurality of perforations of the first substrate layer; a second substrate layer contacting the first substrate layer and opposing the first patch array; a second patch array printed on the second substrate layer and partially blocking the plurality of perforations of the first substrate layer, the second patch array configured to transmit or receive at a second frequency, and having a plurality of second patches, each aligning with one of the plurality of openings of the first patch array; and a transceiver positioned adjacent to the second substrate layer and opposing the first substrate layer, the transceiver coupled to the first patch array and the second patch array, and configured to generate or receive signals having the first frequency or the second frequency. - View Dependent Claims (14, 15, 16, 17)
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18. A dual-band radar, comprising:
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a first patch array positioned along a first plane, and configured to transmit or receive at a first frequency, the first patch array having a plurality of first patches, each of the plurality of first patches defining a plurality of perforations; a second patch array positioned along a second plane, and having a plurality of second patches, each aligning with one of the plurality of perforations of the first patch array; a ground plate positioned along a third plane, and defining a plurality of apertures, each of the plurality of apertures cooperating with one of the plurality of second patches to transmit or receive at a second frequency; and a transceiver in communication with the first patch array and the second patch array, and configured to generate or receive signals having the first frequency or the second frequency. - View Dependent Claims (19, 20)
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Specification