Minimizing radar transmission loss through coatings of vehicle parts with additional radar correcting layers

A system comprising:

• a processor, and a computer-readable storage medium, the computer-readable storage medium having stored thereon computer-readable instructions that, when executed, cause the system to perform the following:
• receive radar transmission loss data over a measured frequency from 1-300 GHz, such as 60 GHz and 90 GHz for i) a radar transmissive section of a physical object, and ii) a plurality of arrangements of one or more calibration layers applied about the radar transmissive section, wherein the radar transmission section comprises a substrate and one or more coating layers applied thereto, and each calibration layer has a permittivity value that is the same;
• generate a plurality of predicted transmission loss values from a plurality of trial variables in the form of permittivity values and thickness values, the predicted transmission loss values corresponding to i) a hypothetical section stack, and to ii) the hypothetical section stack combined with each of the arrangements of one or more calibration layers, wherein the hypothetical section stack comprises a plurality of hypothetical coating layers applied to a hypothetical substrate of a hypothetical transmissive section of a hypothetical object;
• adjust one or more of the trial variables to create a calculated radar transmission loss value at the measured frequency for i) the hypothetical section stack, and ii) a combination of each arrangement of one or more calibration layers and the hypothetical section stack, wherein the calculated versus received radar transmission loss values are within a root mean square error of less than 0.1 dB;
• use the adjusted trial variables, perform a computational optimization routine via the computer system to predict a property of a radar correcting layer, such that the predicted radar correcting layer, when added to the hypothetical section stack, reduces the predicted radar transmission loss to meet a radar compliance requirement;
• and
• provide an output of the predicted radar correcting layer to an end-user.

A computer-implemented method of determining a set of one of more radar correcting layers for addressing a radar transmission loss of a radar transmissive section of an object, comprising:

• receiving radar transmission loss data over a measured frequency between 1-300 GHz, such as 60 GHz and 90 GHz for i) a radar transmissive section of a physical object, and ii) a plurality of arrangements of one or more calibration layers applied about the radar transmissive section, wherein the radar transmission section comprises a substrate and one or more coating layers applied thereto, and each calibration layer has a permittivity value that is the same;
• generating a plurality predicted transmission loss values from a plurality of trial variables in the form of permittivity values and thickness values, the predicted transmission loss values corresponding to i) a hypothetical section stack, and to ii) the hypothetical section stack combined with each of the arrangements of one or more calibration layers, wherein the hypothetical section stack comprises a plurality of hypothetical coating layers applied to a hypothetical substrate of a hypothetical transmissive section of a hypothetical object;
• adjusting one or more of the trial variables to create a calculated radar transmission loss value at the measured frequency for i) the hypothetical section stack, and ii) a combination of each arrangement of one or more calibration layers and the hypothetical section stack, wherein the calculated versus received radar transmission loss values are within a root mean square error of less than 0.1 dB;
• using the adjusted trial variables, performing a computational optimization routine via the computer system to predict a property of a radar correcting layer, such that the predicted radar correcting layer, when added to the hypothetical section stack, reduces the predicted radar transmission loss to meet a radar compliance requirement;
• and
• providing an output of the predicted radar correcting layer to an end-user.