Volumetric scan automotive radar with end-fire antenna on partially laminated multi-layer PCB
First Claim
Patent Images
1. A vehicular radar system comprising:
- a first printed circuit board (PCB) having a first material;
a plurality of end-fire antennas positioned on the first PCB;
a second PCB stacked on or under the first PCB and having a second material that has a greater rigidity than the first material; and
a radio frequency integrated circuit (RFIC) coupled to the plurality of end-fire antennas and configured to control the plurality of end-fire antennas.
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Abstract
A vehicular radar system includes a first printed circuit board (PCB) having a first material. The vehicular radar system also includes a plurality of end-fire antennas positioned on the first PCB. The vehicular radar system also includes a second PCB stacked on or under the first PCB and having a second material that has a greater rigidity than the first material. The vehicular radar system also includes a radio frequency integrated circuit (RFIC) coupled to the plurality of end-fire antennas and configured to control the plurality of end-fire antennas.
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Citations
20 Claims
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1. A vehicular radar system comprising:
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a first printed circuit board (PCB) having a first material; a plurality of end-fire antennas positioned on the first PCB; a second PCB stacked on or under the first PCB and having a second material that has a greater rigidity than the first material; and a radio frequency integrated circuit (RFIC) coupled to the plurality of end-fire antennas and configured to control the plurality of end-fire antennas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicular radar system comprising:
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a first radar board having; a first printed circuit board (PCB) made of a first material and having a chip connection end and a transmission end, and a first plurality of end-fire antennas; a second radar board having; a second PCB made of the first material and having a chip connection end and a transmission end, and a second plurality of end-fire antennas; a third PCB stacked between the first PCB and the second PCB and made of a second material that has a greater rigidity than the first material; and at least one radio frequency integrated circuit (RFIC) coupled to the first plurality of end-fire antennas and the second plurality of end-fire antennas and configured to control each of the first plurality of end-fire antennas and each of the second plurality of end-fire antennas. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A vehicular radar system comprising:
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a first printed circuit board (PCB) having a chip connection end, a transmission end, a top, and a bottom; a plurality of end-fire antennas positioned on the first PCB each having; a ground structure positioned adjacent to the chip connection end of the first PCB on the bottom of the first PCB, a chip connection lead positioned adjacent to the chip connection end of the first PCB and electrically coupled to the RFIC, a balun positioned adjacent to the chip connection lead and configured to convert an unbalanced signal to a balanced signal or to convert a balanced signal to an unbalanced signal, a wave section having a first wave section and a second wave section separated by a space and configured to transmit a wireless radar signal, and a tapered section positioned between the balun and the wave section and tapered towards the balun from the wave section; a second PCB coupled to the top or the bottom of the first PCB, having a greater rigidity than the first PCB, and positioned between the balun of each of the plurality of end-fire antennas and the chip connection end of the first PCB; and a radio frequency integrated circuit (RFIC) coupled to the plurality of end-fire antennas and configured to control the plurality of end-fire antennas. - View Dependent Claims (17, 18, 19, 20)
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Specification