| CPC G01S 13/931 (2013.01) [C09D 7/62 (2018.01); C09D 7/70 (2018.01); B60R 11/00 (2013.01); C08K 7/00 (2013.01); C08K 2201/016 (2013.01); G01S 2013/93275 (2020.01)] | 20 Claims |
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10. A vehicle, comprising:
a radar packaging component; and
a radar sensor positioned under the radar packaging component, the radar packaging component including:
a substrate, and
a coating affixed on the substrate, the coating including a binder, and a plurality of acicular flake particles dispersed in the binder,
wherein the acicular flake particles exhibit a thickness, a width, and a length, and a largest cross-sectional area, defined by the width and the length, is aligned parallel to a first plane defined by a first, x-axis and a second, y-axis, in plane with a radar electric field, the length of at least 30 percent by volume of the acicular flake particles is oriented in a second, y-axis, and the thickness is oriented in a third, z-axis, where the third, z-axis defines a signal propagation direction of the radar sensor and the third, z-axis is perpendicular to the first plane, and the acicular flake particles are dispersed in the binder in layers and the layers are formed along the third, z-axis, and the acicular flake particles are aligned relative to each other in the first, x-axis and y-second axis in each layer such that the acicular flake particles appear stacked along the third axis, and
the length of the acicular flake particles is in the range of 5 micrometers to 100 micrometers, a width of the acicular flake particles is in the range of 1 micrometer to 20 micrometers, and the thickness of the acicular flake particles is in the range of 0.1 micrometers to 5 micrometers.
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