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Design, Test and Manufacture of Radar Absorbing Materials for Australian Defence Platforms

Design, Test and Manufacture of Radar Absorbing Materials for Australian Defence Platforms
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The techniques used to measure, design, and test Radar Absorbing Materials (RAM) are described. Absorbing additives are added to polymer materials at a range of concentrations in the laboratory, and then tested over the frequency range of interest to determine the material’s permittivity and permeability. The techniques and algorithms used to extract these values are dependent upon the material under test and the type of information required. 

Product Number: 41216-943-SG
Author: Andrew Amiet
Publication Date: 2016
Industry: Coatings
$0.00
$20.00
$20.00

The techniques used to measure, design, and test Radar Absorbing Materials (RAM) are described. Absorbing additives are added to polymer materials at a range of concentrations in the laboratory, and then tested over the frequency range of interest to determine the material’s permittivity and permeability. The techniques and algorithms used to extract these values are dependent upon the material under test and the type of information required. Once accurately determined, these values are used in a computer optimization code designed to find the best additive concentration and thickness for each layer of a multilayered material to give the highest absorption levels over the user-specified frequency range. The calculated performance from the multilayered material is displayed in real time and has been found to be in excellent agreement with the measured values. Using the techniques described in this report, radar-absorbing materials can be tailor made to suit a wide range of applications, providing Defense with an indigenous capability for high performance RAM products.

The techniques used to measure, design, and test Radar Absorbing Materials (RAM) are described. Absorbing additives are added to polymer materials at a range of concentrations in the laboratory, and then tested over the frequency range of interest to determine the material’s permittivity and permeability. The techniques and algorithms used to extract these values are dependent upon the material under test and the type of information required. Once accurately determined, these values are used in a computer optimization code designed to find the best additive concentration and thickness for each layer of a multilayered material to give the highest absorption levels over the user-specified frequency range. The calculated performance from the multilayered material is displayed in real time and has been found to be in excellent agreement with the measured values. Using the techniques described in this report, radar-absorbing materials can be tailor made to suit a wide range of applications, providing Defense with an indigenous capability for high performance RAM products.

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